#include "asterisk.h"
#include "asterisk/linkedlists.h"
#include "asterisk/devicestate.h"
Go to the source code of this file.
Data Structures | |
struct | ast_cc_agent |
struct | ast_cc_agent_callbacks |
struct | ast_cc_interface |
Structure with information about an outbound interface. More... | |
struct | ast_cc_monitor |
struct | ast_cc_monitor_callbacks |
Callbacks defined by CC monitors. More... | |
Defines | |
#define | ast_cc_config_params_init() __ast_cc_config_params_init(__FILE__, __LINE__, __PRETTY_FUNCTION__) |
Allocate and initialize an ast_cc_config_params structure. | |
#define | AST_CC_GENERIC_MONITOR_TYPE "generic" |
Typedefs | |
typedef void(*) | ast_cc_callback_fn (struct ast_channel *chan, struct ast_cc_config_params *cc_params, const char *monitor_type, const char *const device_name, const char *const dialstring, void *private_data) |
Callback made from ast_cc_callback for certain channel types. | |
Enumerations | |
enum | ast_cc_agent_flags { AST_CC_AGENT_SKIP_OFFER = (1 << 0) } |
agent flags that can alter core behavior More... | |
enum | ast_cc_agent_policies { AST_CC_AGENT_NEVER, AST_CC_AGENT_NATIVE, AST_CC_AGENT_GENERIC } |
The various possibilities for cc_agent_policy values. More... | |
enum | ast_cc_monitor_class { AST_CC_DEVICE_MONITOR, AST_CC_EXTENSION_MONITOR } |
enum | ast_cc_monitor_policies { AST_CC_MONITOR_NEVER, AST_CC_MONITOR_NATIVE, AST_CC_MONITOR_GENERIC, AST_CC_MONITOR_ALWAYS } |
The various possibilities for cc_monitor_policy values. More... | |
enum | ast_cc_service_type { AST_CC_NONE, AST_CC_CCBS, AST_CC_CCNR, AST_CC_CCNL } |
Functions | |
ast_cc_config_params * | __ast_cc_config_params_init (const char *file, int line, const char *function) |
Allocate and initialize an ast_cc_config_params structure. | |
int | ast_cc_agent_accept_request (int core_id, const char *const debug,...) |
Accept inbound CC request. | |
ast_cc_agent * | ast_cc_agent_callback (int flags, ao2_callback_fn *function, void *arg, const char *const type) |
Call a callback on all agents of a specific type. | |
int | ast_cc_agent_caller_available (int core_id, const char *const debug,...) |
Indicate that a previously unavailable caller has become available. | |
int | ast_cc_agent_caller_busy (int core_id, const char *const debug,...) |
Indicate that the caller is busy. | |
int | ast_cc_agent_recalling (int core_id, const char *const debug,...) |
Tell the CC core that a caller is currently recalling. | |
int | ast_cc_agent_register (const struct ast_cc_agent_callbacks *callbacks) |
Register a set of agent callbacks with the core. | |
int | ast_cc_agent_set_interfaces_chanvar (struct ast_channel *chan) |
Set the first level CC_INTERFACES channel variable for a channel. | |
int | ast_cc_agent_status_response (int core_id, enum ast_device_state devstate) |
Response with a caller's current status. | |
void | ast_cc_agent_unregister (const struct ast_cc_agent_callbacks *callbacks) |
Unregister a set of agent callbacks with the core. | |
int | ast_cc_available_timer_expire (const void *data) |
Scheduler callback for available timer expiration. | |
int | ast_cc_build_frame (struct ast_channel *chan, struct ast_cc_config_params *cc_params, const char *monitor_type, const char *const device_name, const char *const dialstring, enum ast_cc_service_type service, void *private_data, struct ast_frame *frame) |
Create a CC Control frame. | |
void | ast_cc_busy_interface (struct ast_channel *inbound, struct ast_cc_config_params *cc_params, const char *monitor_type, const char *const device_name, const char *const dialstring, void *private_data) |
Callback made from ast_cc_callback for certain channel types. | |
void | ast_cc_call_failed (struct ast_channel *incoming, struct ast_channel *outgoing, const char *const dialstring) |
Make CCBS available in the case that ast_call fails. | |
int | ast_cc_call_init (struct ast_channel *chan, int *ignore_cc) |
Start the CC process on a call. | |
int | ast_cc_callback (struct ast_channel *inbound, const char *const tech, const char *const dest, ast_cc_callback_fn callback) |
Run a callback for potential matching destinations. | |
int | ast_cc_completed (struct ast_channel *chan, const char *const debug,...) |
Indicate recall has been acknowledged. | |
void | ast_cc_config_params_destroy (struct ast_cc_config_params *params) |
Free memory from CCSS configuration params. | |
void | ast_cc_copy_config_params (struct ast_cc_config_params *dest, const struct ast_cc_config_params *src) |
copy CCSS configuration parameters from one structure to another | |
void | ast_cc_default_config_params (struct ast_cc_config_params *params) |
Set the specified CC config params to default values. | |
void | ast_cc_extension_monitor_add_dialstring (struct ast_channel *incoming, const char *const dialstring, const char *const device_name) |
Add a child dialstring to an extension monitor. | |
int | ast_cc_failed (int core_id, const char *const debug,...) |
Indicate failure has occurred. | |
int | ast_cc_get_current_core_id (struct ast_channel *chan) |
Get the core id for the current call. | |
ast_cc_monitor * | ast_cc_get_monitor_by_recall_core_id (const int core_id, const char *const device_name) |
Get the associated monitor given the device name and core_id. | |
int | ast_cc_get_param (struct ast_cc_config_params *params, const char *const name, char *buf, size_t buf_len) |
get a CCSS configuration parameter, given its name | |
int | ast_cc_init (void) |
Initialize CCSS. | |
int | ast_cc_is_config_param (const char *const name) |
Is this a CCSS configuration parameter? | |
int | ast_cc_is_recall (struct ast_channel *chan, int *core_id, const char *const monitor_type) |
Decide if a call to a particular channel is a CC recall. | |
int | ast_cc_monitor_callee_available (const int core_id, const char *const debug,...) |
Alert the core that a device being monitored has become available. | |
int | ast_cc_monitor_count (const char *const name, const char *const type) |
Return the number of outstanding CC requests to a specific device. | |
int | ast_cc_monitor_failed (int core_id, const char *const monitor_name, const char *const debug,...) |
Indicate that a failure has occurred on a specific monitor. | |
int | ast_cc_monitor_party_b_free (int core_id) |
Alert a caller that though the callee has become free, the caller himself is not and may not call back. | |
int | ast_cc_monitor_register (const struct ast_cc_monitor_callbacks *callbacks) |
Register a set of monitor callbacks with the core. | |
int | ast_cc_monitor_request_acked (int core_id, const char *const debug,...) |
Indicate that an outbound entity has accepted our CC request. | |
int | ast_cc_monitor_status_request (int core_id) |
Request the status of a caller or callers. | |
int | ast_cc_monitor_stop_ringing (int core_id) |
Alert a caller to stop ringing. | |
void | ast_cc_monitor_unregister (const struct ast_cc_monitor_callbacks *callbacks) |
Unregister a set of monitor callbacks with the core. | |
int | ast_cc_offer (struct ast_channel *caller_chan) |
Offer CC to a caller. | |
int | ast_cc_request_is_within_limits (void) |
Check if the incoming CC request is within the bounds set by the cc_max_requests configuration option. | |
int | ast_cc_set_param (struct ast_cc_config_params *params, const char *const name, const char *value) |
set a CCSS configuration parameter, given its name | |
const char * | ast_get_cc_agent_dialstring (struct ast_cc_config_params *config) |
Get the cc_agent_dialstring. | |
enum ast_cc_agent_policies | ast_get_cc_agent_policy (struct ast_cc_config_params *config) |
Get the cc_agent_policy. | |
const char * | ast_get_cc_callback_macro (struct ast_cc_config_params *config) |
Get the name of the callback_macro. | |
unsigned int | ast_get_cc_max_agents (struct ast_cc_config_params *config) |
Get the cc_max_agents. | |
unsigned int | ast_get_cc_max_monitors (struct ast_cc_config_params *config) |
Get the cc_max_monitors. | |
enum ast_cc_monitor_policies | ast_get_cc_monitor_policy (struct ast_cc_config_params *config) |
Get the cc_monitor_policy. | |
unsigned int | ast_get_cc_offer_timer (struct ast_cc_config_params *config) |
Get the cc_offer_timer. | |
unsigned int | ast_get_cc_recall_timer (struct ast_cc_config_params *config) |
Get the cc_recall_timer. | |
unsigned int | ast_get_ccbs_available_timer (struct ast_cc_config_params *config) |
Get the ccbs_available_timer. | |
unsigned int | ast_get_ccnr_available_timer (struct ast_cc_config_params *config) |
Get the ccnr_available_timer. | |
void | ast_handle_cc_control_frame (struct ast_channel *inbound, struct ast_channel *outbound, void *frame_data) |
Properly react to a CC control frame. | |
void | ast_ignore_cc (struct ast_channel *chan) |
Mark the channel to ignore further CC activity. | |
int | ast_queue_cc_frame (struct ast_channel *chan, const char *const monitor_type, const char *const dialstring, enum ast_cc_service_type service, void *private_data) |
Queue an AST_CONTROL_CC frame. | |
void | ast_set_cc_agent_dialstring (struct ast_cc_config_params *config, const char *const value) |
Set the cc_agent_dialstring. | |
int | ast_set_cc_agent_policy (struct ast_cc_config_params *config, enum ast_cc_agent_policies value) |
Set the cc_agent_policy. | |
void | ast_set_cc_callback_macro (struct ast_cc_config_params *config, const char *const value) |
Set the callback_macro name. | |
int | ast_set_cc_interfaces_chanvar (struct ast_channel *chan, const char *const extension) |
Set the CC_INTERFACES channel variable for a channel using an extension as a starting point. | |
void | ast_set_cc_max_agents (struct ast_cc_config_params *config, unsigned int value) |
Set the cc_max_agents. | |
void | ast_set_cc_max_monitors (struct ast_cc_config_params *config, unsigned int value) |
Set the cc_max_monitors. | |
int | ast_set_cc_monitor_policy (struct ast_cc_config_params *config, enum ast_cc_monitor_policies value) |
Set the cc_monitor_policy. | |
void | ast_set_cc_offer_timer (struct ast_cc_config_params *config, unsigned int value) |
Set the cc_offer_timer. | |
void | ast_set_cc_recall_timer (struct ast_cc_config_params *config, unsigned int value) |
Set the cc_recall_timer. | |
void | ast_set_ccbs_available_timer (struct ast_cc_config_params *config, unsigned int value) |
Set the ccbs_available_timer. | |
void | ast_set_ccnr_available_timer (struct ast_cc_config_params *config, unsigned int value) |
Set the ccnr_available_timer. | |
int | ast_setup_cc_recall_datastore (struct ast_channel *chan, const int core_id) |
Set up a CC recall datastore on a channel. |
Definition in file ccss.h.
#define ast_cc_config_params_init | ( | ) | __ast_cc_config_params_init(__FILE__, __LINE__, __PRETTY_FUNCTION__) |
Allocate and initialize an ast_cc_config_params structure.
NULL | Unable to allocate the structure | |
non-NULL | A pointer to the newly allocated and initialized structure |
Definition at line 135 of file ccss.h.
Referenced by ast_channel_cc_params_init(), build_peer(), cc_agent_init(), cc_device_monitor_init(), channel_cc_params_copy(), dahdi_chan_conf_default(), duplicate_pseudo(), sip_alloc(), and temp_peer().
#define AST_CC_GENERIC_MONITOR_TYPE "generic" |
It is recommended that monitors use a pointer to an ast_cc_monitor_callbacks::type when creating an AST_CONTROL_CC frame. Since the generic monitor callbacks are opaque and channel drivers will wish to use that, this string is made globally available for all to use
Definition at line 472 of file ccss.h.
Referenced by analog_call(), ast_cc_call_failed(), dahdi_cc_callback(), sig_pri_cc_generic_check(), and sip_handle_cc().
typedef void(*) ast_cc_callback_fn(struct ast_channel *chan, struct ast_cc_config_params *cc_params, const char *monitor_type, const char *const device_name, const char *const dialstring, void *private_data) |
Callback made from ast_cc_callback for certain channel types.
chan | A channel involved in the call. What we want is on a datastore on both incoming and outgoing so either may be provided | |
cc_params | The CC configuration parameters for the outbound target | |
monitor_type | The type of monitor to use when CC is requested | |
device_name | The name of the outbound target device. | |
dialstring | The dial string used when calling this specific interface | |
private_data | If a native monitor is being used, and some channel-driver-specific private data has been allocated, then this parameter should contain a pointer to that data. If using a generic monitor, this parameter should remain NULL. Note that if this function should fail at some point, it is the responsibility of the caller to free the private data upon return. |
enum ast_cc_agent_flags |
agent flags that can alter core behavior
Definition at line 59 of file ccss.h.
00059 { 00060 /* Some agent types allow for a caller to 00061 * request CC without reaching the CC_CALLER_OFFERED 00062 * state. In other words, the caller can request 00063 * CC while he is still on the phone from the failed 00064 * call. The generic agent is an agent which allows 00065 * for this behavior. 00066 */ 00067 AST_CC_AGENT_SKIP_OFFER = (1 << 0), 00068 };
The various possibilities for cc_agent_policy values.
AST_CC_AGENT_NEVER | Never offer CCSS to the caller |
AST_CC_AGENT_NATIVE | Offer CCSS using native signaling |
AST_CC_AGENT_GENERIC | Use generic agent for caller |
Definition at line 47 of file ccss.h.
00047 { 00048 /*! Never offer CCSS to the caller */ 00049 AST_CC_AGENT_NEVER, 00050 /*! Offer CCSS using native signaling */ 00051 AST_CC_AGENT_NATIVE, 00052 /*! Use generic agent for caller */ 00053 AST_CC_AGENT_GENERIC, 00054 };
enum ast_cc_monitor_class |
Used to determine which type of monitor an ast_cc_device_monitor is.
Definition at line 479 of file ccss.h.
00479 { 00480 AST_CC_DEVICE_MONITOR, 00481 AST_CC_EXTENSION_MONITOR, 00482 };
The various possibilities for cc_monitor_policy values.
Definition at line 74 of file ccss.h.
00074 { 00075 /*! Never accept CCSS offers from callee */ 00076 AST_CC_MONITOR_NEVER, 00077 /* CCSS only available if callee offers it through signaling */ 00078 AST_CC_MONITOR_NATIVE, 00079 /*! Always use CCSS generic monitor for callee 00080 * Note that if callee offers CCSS natively, we still 00081 * will use a generic CCSS monitor if this is set 00082 */ 00083 AST_CC_MONITOR_GENERIC, 00084 /*! Accept native CCSS offers, but if no offer is present, 00085 * use a generic CCSS monitor 00086 */ 00087 AST_CC_MONITOR_ALWAYS, 00088 };
enum ast_cc_service_type |
Definition at line 32 of file ccss.h.
00032 { 00033 /* No Service available/requested */ 00034 AST_CC_NONE, 00035 /* Call Completion Busy Subscriber */ 00036 AST_CC_CCBS, 00037 /* Call Completion No Response */ 00038 AST_CC_CCNR, 00039 /* Call Completion Not Logged In (currently SIP only) */ 00040 AST_CC_CCNL, 00041 };
struct ast_cc_config_params* __ast_cc_config_params_init | ( | const char * | file, | |
int | line, | |||
const char * | function | |||
) |
Allocate and initialize an ast_cc_config_params structure.
NULL | Unable to allocate the structure | |
non-NULL | A pointer to the newly allocated and initialized structure |
Definition at line 530 of file ccss.c.
References __ast_malloc(), ast_cc_default_config_params(), and ast_malloc.
00531 { 00532 #if defined(__AST_DEBUG_MALLOC) 00533 struct ast_cc_config_params *params = __ast_malloc(sizeof(*params), file, line, function); 00534 #else 00535 struct ast_cc_config_params *params = ast_malloc(sizeof(*params)); 00536 #endif 00537 00538 if (!params) { 00539 return NULL; 00540 } 00541 00542 ast_cc_default_config_params(params); 00543 return params; 00544 }
int ast_cc_agent_accept_request | ( | int | core_id, | |
const char *const | debug, | |||
... | ||||
) |
Accept inbound CC request.
core_id | core_id of the CC transaction | |
debug | optional string to print for debugging purposes |
0 | Success | |
-1 | Failure |
Definition at line 3391 of file ccss.c.
References CC_CALLER_REQUESTED, and cc_request_state_change().
Referenced by ccreq_exec(), handle_cc_subscribe(), and sig_pri_handle_cis_subcmds().
03392 { 03393 va_list ap; 03394 int res; 03395 03396 va_start(ap, debug); 03397 res = cc_request_state_change(CC_CALLER_REQUESTED, core_id, debug, ap); 03398 va_end(ap); 03399 return res; 03400 }
struct ast_cc_agent* ast_cc_agent_callback | ( | int | flags, | |
ao2_callback_fn * | function, | |||
void * | arg, | |||
const char *const | type | |||
) |
Call a callback on all agents of a specific type.
Since the container of CC core instances is private, and so are the items which the container contains, we have to provide an ao2_callback-like method so that a specific agent may be found or so that an operation can be made on all agents of a particular type. The first three arguments should be familiar to anyone who has used ao2_callback. The final argument is the type of agent you wish to have the callback called on.
flags | astobj2 search flags | |
function | an ao2 callback function to call | |
arg | the argument to the callback function | |
type | The type of agents to call the callback on |
Definition at line 413 of file ccss.c.
References cc_core_instance::agent, ao2_t_callback, cc_agent_callback_helper(), cc_core_instances, cc_ref(), cc_unref(), and cc_callback_helper::function.
Referenced by find_sip_cc_agent_by_notify_uri(), find_sip_cc_agent_by_original_callid(), and find_sip_cc_agent_by_subscribe_uri().
00414 { 00415 struct cc_callback_helper helper = {.function = function, .args = args, .type = type}; 00416 struct cc_core_instance *core_instance; 00417 if ((core_instance = ao2_t_callback(cc_core_instances, flags, cc_agent_callback_helper, &helper, 00418 "Calling provided agent callback function"))) { 00419 struct ast_cc_agent *agent = cc_ref(core_instance->agent, "An outside entity needs the agent"); 00420 cc_unref(core_instance, "agent callback done with the core_instance"); 00421 return agent; 00422 } 00423 return NULL; 00424 }
int ast_cc_agent_caller_available | ( | int | core_id, | |
const char *const | debug, | |||
... | ||||
) |
Indicate that a previously unavailable caller has become available.
core_id | core_id of the CC transaction | |
debug | optional string to print for debugging purposes |
0 | Success | |
-1 | Failure |
Definition at line 3435 of file ccss.c.
References CC_ACTIVE, and cc_request_state_change().
Referenced by cc_esc_publish_handler(), generic_agent_devstate_cb(), and sig_pri_handle_cis_subcmds().
03436 { 03437 va_list ap; 03438 int res; 03439 03440 va_start(ap, debug); 03441 res = cc_request_state_change(CC_ACTIVE, core_id, debug, ap); 03442 va_end(ap); 03443 return res; 03444 }
int ast_cc_agent_caller_busy | ( | int | core_id, | |
const char *const | debug, | |||
... | ||||
) |
Indicate that the caller is busy.
core_id | core_id of the CC transaction | |
debug | optional string to print for debugging purposes |
0 | Success | |
-1 | Failure |
Definition at line 3424 of file ccss.c.
References CC_CALLER_BUSY, and cc_request_state_change().
Referenced by cc_esc_publish_handler(), cc_generic_agent_recall(), sig_pri_handle_cis_subcmds(), and sip_cc_agent_recall().
03425 { 03426 va_list ap; 03427 int res; 03428 03429 va_start(ap, debug); 03430 res = cc_request_state_change(CC_CALLER_BUSY, core_id, debug, ap); 03431 va_end(ap); 03432 return res; 03433 }
int ast_cc_agent_recalling | ( | int | core_id, | |
const char *const | debug, | |||
... | ||||
) |
Tell the CC core that a caller is currently recalling.
core_id | core_id of the CC transaction | |
debug | optional string to print for debugging purposes |
0 | Success | |
-1 | Failure |
Definition at line 3446 of file ccss.c.
References CC_RECALLING, and cc_request_state_change().
Referenced by generic_recall(), get_destination(), and sig_pri_handle_subcmds().
03447 { 03448 va_list ap; 03449 int res; 03450 03451 va_start(ap, debug); 03452 res = cc_request_state_change(CC_RECALLING, core_id, debug, ap); 03453 va_end(ap); 03454 return res; 03455 }
int ast_cc_agent_register | ( | const struct ast_cc_agent_callbacks * | callbacks | ) |
Register a set of agent callbacks with the core.
callbacks | The callbacks used by the agent implementation |
0 | Successfully registered | |
-1 | Failure to register |
Definition at line 917 of file ccss.c.
References ast_calloc, AST_RWLIST_INSERT_TAIL, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, and cc_monitor_backend::next.
Referenced by ast_cc_init(), and load_module().
00918 { 00919 struct cc_agent_backend *backend = ast_calloc(1, sizeof(*backend)); 00920 00921 if (!backend) { 00922 return -1; 00923 } 00924 00925 backend->callbacks = callbacks; 00926 AST_RWLIST_WRLOCK(&cc_agent_backends); 00927 AST_RWLIST_INSERT_TAIL(&cc_agent_backends, backend, next); 00928 AST_RWLIST_UNLOCK(&cc_agent_backends); 00929 return 0; 00930 }
int ast_cc_agent_set_interfaces_chanvar | ( | struct ast_channel * | chan | ) |
Set the first level CC_INTERFACES channel variable for a channel.
This function will lock the channel as well as the list of monitors stored on the channel's CC recall datastore, though neither are held at the same time. Callers of this function should be aware of potential lock ordering problems that may arise.
chan | The channel to set the CC_INTERFACES variable on |
Definition at line 3246 of file ccss.c.
References ast_channel_datastore_find(), ast_channel_lock, ast_channel_unlock, ast_free, AST_LIST_FIRST, AST_LIST_LOCK, AST_LIST_UNLOCK, ast_log_dynamic_level, ast_str_buffer(), ast_str_create(), build_cc_interfaces_chanvar(), cc_recall_ds_data::core_id, ast_datastore::data, cc_recall_ds_data::interface_tree, monitor, pbx_builtin_setvar_helper(), recall_ds_info, and str.
Referenced by generic_recall(), handle_request_invite(), and sig_pri_handle_subcmds().
03247 { 03248 struct ast_datastore *recall_datastore; 03249 struct cc_monitor_tree *interface_tree; 03250 struct ast_cc_monitor *monitor; 03251 struct cc_recall_ds_data *recall_data; 03252 struct ast_str *str = ast_str_create(64); 03253 int core_id; 03254 03255 if (!str) { 03256 return -1; 03257 } 03258 03259 ast_channel_lock(chan); 03260 if (!(recall_datastore = ast_channel_datastore_find(chan, &recall_ds_info, NULL))) { 03261 ast_channel_unlock(chan); 03262 ast_free(str); 03263 return -1; 03264 } 03265 recall_data = recall_datastore->data; 03266 interface_tree = recall_data->interface_tree; 03267 core_id = recall_data->core_id; 03268 ast_channel_unlock(chan); 03269 03270 AST_LIST_LOCK(interface_tree); 03271 monitor = AST_LIST_FIRST(interface_tree); 03272 build_cc_interfaces_chanvar(monitor, str); 03273 AST_LIST_UNLOCK(interface_tree); 03274 03275 pbx_builtin_setvar_helper(chan, "CC_INTERFACES", ast_str_buffer(str)); 03276 ast_log_dynamic_level(cc_logger_level, "Core %d: CC_INTERFACES set to %s\n", 03277 core_id, ast_str_buffer(str)); 03278 03279 ast_free(str); 03280 return 0; 03281 }
int ast_cc_agent_status_response | ( | int | core_id, | |
enum ast_device_state | devstate | |||
) |
Response with a caller's current status.
When an ISDN PTMP monitor requests the caller's status, the agent must respond to the request using this function. For simplicity it is recommended that the devstate parameter be one of AST_DEVICE_INUSE or AST_DEVICE_NOT_INUSE.
core_id | The core ID of the CC transaction | |
devstate | The current state of the caller to which the agent pertains |
0 | Successfully responded with our status | |
-1 | Failed to respond with our status |
Definition at line 3711 of file ccss.c.
References args, ast_calloc, ast_free, ast_taskprocessor_push(), cc_core_taskprocessor, cc_status_response(), cc_unref(), and find_cc_core_instance().
Referenced by cc_generic_agent_status_request(), sig_pri_handle_cis_subcmds(), and sip_cc_agent_status_request().
03712 { 03713 struct cc_status_response_args *args; 03714 struct cc_core_instance *core_instance; 03715 int res; 03716 03717 args = ast_calloc(1, sizeof(*args)); 03718 if (!args) { 03719 return -1; 03720 } 03721 03722 core_instance = find_cc_core_instance(core_id); 03723 if (!core_instance) { 03724 ast_free(args); 03725 return -1; 03726 } 03727 03728 args->core_instance = core_instance; 03729 args->devstate = devstate; 03730 03731 res = ast_taskprocessor_push(cc_core_taskprocessor, cc_status_response, args); 03732 if (res) { 03733 cc_unref(core_instance, "Unref core instance. ast_taskprocessor_push failed"); 03734 ast_free(args); 03735 } 03736 return res; 03737 }
void ast_cc_agent_unregister | ( | const struct ast_cc_agent_callbacks * | callbacks | ) |
Unregister a set of agent callbacks with the core.
callbacks | The callbacks used by the agent implementation |
0 | Successfully unregistered | |
-1 | Failure to unregister |
Definition at line 932 of file ccss.c.
References ast_free, AST_RWLIST_REMOVE_CURRENT, AST_RWLIST_TRAVERSE_SAFE_BEGIN, AST_RWLIST_TRAVERSE_SAFE_END, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, cc_agent_backend::callbacks, cc_monitor_backend::callbacks, and cc_monitor_backend::next.
Referenced by __unload_module(), and unload_module().
00933 { 00934 struct cc_agent_backend *backend; 00935 AST_RWLIST_WRLOCK(&cc_agent_backends); 00936 AST_RWLIST_TRAVERSE_SAFE_BEGIN(&cc_agent_backends, backend, next) { 00937 if (backend->callbacks == callbacks) { 00938 AST_RWLIST_REMOVE_CURRENT(next); 00939 ast_free(backend); 00940 break; 00941 } 00942 } 00943 AST_RWLIST_TRAVERSE_SAFE_END; 00944 AST_RWLIST_UNLOCK(&cc_agent_backends); 00945 }
int ast_cc_available_timer_expire | ( | const void * | data | ) |
Scheduler callback for available timer expiration.
data | A reference to the CC monitor on which the timer was running. |
Definition at line 1184 of file ccss.c.
References ast_cc_monitor_failed(), cc_unref(), and monitor.
Referenced by cc_generic_monitor_request_cc(), and sip_cc_monitor_request_cc().
01185 { 01186 struct ast_cc_monitor *monitor = (struct ast_cc_monitor *) data; 01187 int res; 01188 monitor->available_timer_id = -1; 01189 res = ast_cc_monitor_failed(monitor->core_id, monitor->interface->device_name, "Available timer expired for monitor"); 01190 cc_unref(monitor, "Unref reference from scheduler\n"); 01191 return res; 01192 }
int ast_cc_build_frame | ( | struct ast_channel * | chan, | |
struct ast_cc_config_params * | cc_params, | |||
const char * | monitor_type, | |||
const char *const | device_name, | |||
const char *const | dialstring, | |||
enum ast_cc_service_type | service, | |||
void * | private_data, | |||
struct ast_frame * | frame | |||
) |
Create a CC Control frame.
chan | A channel involved in the call. What we want is on a datastore on both incoming and outgoing so either may be provided | |
cc_params | The CC configuration parameters for the outbound target | |
monitor_type | The type of monitor to use when CC is requested | |
device_name | The name of the outbound target device. | |
dialstring | The dial string used when calling this specific interface | |
service | What kind of CC service is being offered. (CCBS/CCNR/etc...) | |
private_data | If a native monitor is being used, and some channel-driver-specific private data has been allocated, then this parameter should contain a pointer to that data. If using a generic monitor, this parameter should remain NULL. Note that if this function should fail at some point, it is the responsibility of the caller to free the private data upon return. | |
[out] | frame | The frame we will be returning to the caller. It is vital that ast_frame_free be called on this frame since the payload will be allocated on the heap. |
-1 | Failure. At some point there was a failure. Do not attempt to use the frame in this case. | |
0 | Success |
Definition at line 3794 of file ccss.c.
References ast_calloc, AST_CONTROL_CC, AST_FRAME_CONTROL, ast_free, AST_MALLOCD_DATA, cc_build_payload(), ast_frame::data, ast_frame::datalen, ast_frame::frametype, ast_frame_subclass::integer, ast_frame::mallocd, ast_frame::ptr, and ast_frame::subclass.
Referenced by ast_queue_cc_frame().
03798 { 03799 struct cc_control_payload *payload = ast_calloc(1, sizeof(*payload)); 03800 03801 if (!payload) { 03802 return -1; 03803 } 03804 if (cc_build_payload(chan, cc_params, monitor_type, device_name, dialstring, service, private_data, payload)) { 03805 /* Something screwed up, we can't make a frame with this */ 03806 ast_free(payload); 03807 return -1; 03808 } 03809 frame->frametype = AST_FRAME_CONTROL; 03810 frame->subclass.integer = AST_CONTROL_CC; 03811 frame->data.ptr = payload; 03812 frame->datalen = sizeof(*payload); 03813 frame->mallocd = AST_MALLOCD_DATA; 03814 return 0; 03815 }
void ast_cc_busy_interface | ( | struct ast_channel * | inbound, | |
struct ast_cc_config_params * | cc_params, | |||
const char * | monitor_type, | |||
const char *const | device_name, | |||
const char *const | dialstring, | |||
void * | private_data | |||
) |
Callback made from ast_cc_callback for certain channel types.
inbound | Incoming asterisk channel. | |
cc_params | The CC configuration parameters for the outbound target | |
monitor_type | The type of monitor to use when CC is requested | |
device_name | The name of the outbound target device. | |
dialstring | The dial string used when calling this specific interface | |
private_data | If a native monitor is being used, and some channel-driver-specific private data has been allocated, then this parameter should contain a pointer to that data. If using a generic monitor, this parameter should remain NULL. Note that if this function should fail at some point, it is the responsibility of the caller to free the private data upon return. |
This function creates a CC control frame payload, simulating the act of reading it from the nonexistent outgoing channel's frame queue. We then handle this simulated frame just as we would a normal CC frame which had actually been queued by the channel driver.
Definition at line 3850 of file ccss.c.
References AST_CC_CCBS, ast_handle_cc_control_frame(), call_destructor_with_no_monitor(), and cc_build_payload().
Referenced by dial_exec_full().
03852 { 03853 struct cc_control_payload payload; 03854 if (cc_build_payload(inbound, cc_params, monitor_type, device_name, dialstring, AST_CC_CCBS, private_data, &payload)) { 03855 /* Something screwed up. Don't try to handle this payload */ 03856 call_destructor_with_no_monitor(monitor_type, private_data); 03857 return; 03858 } 03859 ast_handle_cc_control_frame(inbound, NULL, &payload); 03860 }
void ast_cc_call_failed | ( | struct ast_channel * | incoming, | |
struct ast_channel * | outgoing, | |||
const char *const | dialstring | |||
) |
Make CCBS available in the case that ast_call fails.
One caveat is that this may only be used if generic monitoring is being used. The reason is that since Asterisk determined that the device was busy without actually placing a call to it, the far end will have no idea what call we are requesting call completion for if we were to send a call completion request.
Definition at line 3817 of file ccss.c.
References AST_CAUSE_BUSY, AST_CAUSE_CONGESTION, AST_CC_CCBS, AST_CC_GENERIC_MONITOR_TYPE, AST_CC_MONITOR_GENERIC, ast_channel_get_cc_config_params(), ast_channel_get_device_name(), AST_CHANNEL_NAME, ast_get_cc_monitor_policy(), ast_handle_cc_control_frame(), cc_build_payload(), and ast_channel::hangupcause.
Referenced by dial_exec_full().
03818 { 03819 char device_name[AST_CHANNEL_NAME]; 03820 struct cc_control_payload payload; 03821 struct ast_cc_config_params *cc_params; 03822 03823 if (outgoing->hangupcause != AST_CAUSE_BUSY && outgoing->hangupcause != AST_CAUSE_CONGESTION) { 03824 /* It doesn't make sense to try to offer CCBS to the caller if the reason for ast_call 03825 * failing is something other than busy or congestion 03826 */ 03827 return; 03828 } 03829 03830 cc_params = ast_channel_get_cc_config_params(outgoing); 03831 if (!cc_params) { 03832 return; 03833 } 03834 if (ast_get_cc_monitor_policy(cc_params) != AST_CC_MONITOR_GENERIC) { 03835 /* This sort of CCBS only works if using generic CC. For native, we would end up sending 03836 * a CC request for a non-existent call. The far end will reject this every time 03837 */ 03838 return; 03839 } 03840 03841 ast_channel_get_device_name(outgoing, device_name, sizeof(device_name)); 03842 if (cc_build_payload(outgoing, cc_params, AST_CC_GENERIC_MONITOR_TYPE, device_name, 03843 dialstring, AST_CC_CCBS, NULL, &payload)) { 03844 /* Something screwed up, we can't make a frame with this */ 03845 return; 03846 } 03847 ast_handle_cc_control_frame(incoming, outgoing, &payload); 03848 }
int ast_cc_call_init | ( | struct ast_channel * | chan, | |
int * | ignore_cc | |||
) |
Start the CC process on a call.
The ignore_cc parameter is a convenience parameter. It can save an application the trouble of trying to call CC APIs when it knows that it should just ignore further attempts at CC actions.
chan | The inbound channel calling the CC-capable application. | |
[out] | ignore_cc | Will be set non-zero if no further CC actions need to be taken |
0 | Success | |
-1 | Failure |
Definition at line 2091 of file ccss.c.
References AST_CC_AGENT_NEVER, ast_channel_datastore_find(), ast_channel_get_cc_config_params(), ast_channel_lock, ast_channel_unlock, ast_get_cc_agent_policy(), AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_UNLOCK, ast_log_dynamic_level, cc_extension_monitor_init(), cc_interfaces_datastore_init(), cc_ref(), cc_unref(), ast_channel::context, dialed_cc_interfaces::core_id, ast_datastore::data, dialed_cc_interfaces::dial_parent_id, dialed_cc_interfaces_info, ast_channel::exten, dialed_cc_interfaces::ignore, dialed_cc_interfaces::interface_tree, ast_channel::macrocontext, ast_channel::macroexten, monitor, ast_channel::name, cc_monitor_backend::next, and S_OR.
Referenced by dial_exec_full().
02092 { 02093 /* There are three situations to deal with here: 02094 * 02095 * 1. The channel does not have a dialed_cc_interfaces datastore on 02096 * it. This means that this is the first time that Dial has 02097 * been called. We need to create/initialize the datastore. 02098 * 02099 * 2. The channel does have a cc_interface datastore on it and 02100 * the "ignore" indicator is 0. This means that a Local channel 02101 * was called by a "parent" dial. We can check the datastore's 02102 * parent field to see who the root of this particular dial tree 02103 * is. 02104 * 02105 * 3. The channel does have a cc_interface datastore on it and 02106 * the "ignore" indicator is 1. This means that a second Dial call 02107 * is being made from an extension. In this case, we do not 02108 * want to make any additions/modifications to the datastore. We 02109 * will instead set a flag to indicate that CCSS is completely 02110 * disabled for this Dial attempt. 02111 */ 02112 02113 struct ast_datastore *cc_interfaces_datastore; 02114 struct dialed_cc_interfaces *interfaces; 02115 struct ast_cc_monitor *monitor; 02116 struct ast_cc_config_params *cc_params; 02117 02118 ast_channel_lock(chan); 02119 02120 cc_params = ast_channel_get_cc_config_params(chan); 02121 if (!cc_params) { 02122 ast_channel_unlock(chan); 02123 return -1; 02124 } 02125 if (ast_get_cc_agent_policy(cc_params) == AST_CC_AGENT_NEVER) { 02126 /* We can't offer CC to this caller anyway, so don't bother with CC on this call 02127 */ 02128 *ignore_cc = 1; 02129 ast_channel_unlock(chan); 02130 ast_log_dynamic_level(cc_logger_level, "Agent policy for %s is 'never'. CC not possible\n", chan->name); 02131 return 0; 02132 } 02133 02134 if (!(cc_interfaces_datastore = ast_channel_datastore_find(chan, &dialed_cc_interfaces_info, NULL))) { 02135 /* Situation 1 has occurred */ 02136 ast_channel_unlock(chan); 02137 return cc_interfaces_datastore_init(chan); 02138 } 02139 interfaces = cc_interfaces_datastore->data; 02140 ast_channel_unlock(chan); 02141 02142 if (interfaces->ignore) { 02143 /* Situation 3 has occurred */ 02144 *ignore_cc = 1; 02145 ast_log_dynamic_level(cc_logger_level, "Datastore is present with ignore flag set. Ignoring CC offers on this call\n"); 02146 return 0; 02147 } 02148 02149 /* Situation 2 has occurred */ 02150 if (!(monitor = cc_extension_monitor_init(S_OR(chan->macroexten, chan->exten), 02151 S_OR(chan->macrocontext, chan->context), interfaces->dial_parent_id))) { 02152 return -1; 02153 } 02154 monitor->core_id = interfaces->core_id; 02155 AST_LIST_LOCK(interfaces->interface_tree); 02156 cc_ref(monitor, "monitor tree's reference to the monitor"); 02157 AST_LIST_INSERT_TAIL(interfaces->interface_tree, monitor, next); 02158 AST_LIST_UNLOCK(interfaces->interface_tree); 02159 interfaces->dial_parent_id = monitor->id; 02160 cc_unref(monitor, "Unref monitor's allocation reference"); 02161 return 0; 02162 }
int ast_cc_callback | ( | struct ast_channel * | inbound, | |
const char *const | tech, | |||
const char *const | dest, | |||
ast_cc_callback_fn | callback | |||
) |
Run a callback for potential matching destinations.
inbound | ||
tech | Channel technology to use | |
dest | Channel/group/peer or whatever the specific technology uses | |
callback | Function to call when a target is reached |
Always | 0, I guess. |
Definition at line 3862 of file ccss.c.
References ast_get_channel_tech(), and ast_channel_tech::cc_callback.
Referenced by dial_exec_full().
03863 { 03864 const struct ast_channel_tech *chantech = ast_get_channel_tech(tech); 03865 03866 if (chantech && chantech->cc_callback) { 03867 chantech->cc_callback(inbound, dest, callback); 03868 } 03869 03870 return 0; 03871 }
int ast_cc_completed | ( | struct ast_channel * | chan, | |
const char *const | debug, | |||
... | ||||
) |
Indicate recall has been acknowledged.
chan | The inbound channel making the CC recall | |
debug | optional string to print for debugging purposes |
0 | Success | |
-1 | Failure |
Definition at line 3457 of file ccss.c.
References ast_channel_datastore_find(), ast_channel_lock, ast_channel_unlock, CC_COMPLETE, cc_request_state_change(), cc_recall_ds_data::core_id, ast_datastore::data, cc_recall_ds_data::ignore, cc_recall_ds_data::nested, and recall_ds_info.
03458 { 03459 struct ast_datastore *recall_datastore; 03460 struct cc_recall_ds_data *recall_data; 03461 int core_id; 03462 va_list ap; 03463 int res; 03464 03465 ast_channel_lock(chan); 03466 if (!(recall_datastore = ast_channel_datastore_find(chan, &recall_ds_info, NULL))) { 03467 /* Silly! Why did you call this function if there's no recall DS? */ 03468 ast_channel_unlock(chan); 03469 return -1; 03470 } 03471 recall_data = recall_datastore->data; 03472 if (recall_data->nested || recall_data->ignore) { 03473 /* If this is being called from a nested Dial, it is too 03474 * early to determine if the recall has actually completed. 03475 * The outermost dial is the only one with the authority to 03476 * declare the recall to be complete. 03477 * 03478 * Similarly, if this function has been called when the 03479 * recall has progressed beyond the first dial, this is not 03480 * a legitimate time to declare the recall to be done. In fact, 03481 * that should have been done already. 03482 */ 03483 ast_channel_unlock(chan); 03484 return -1; 03485 } 03486 core_id = recall_data->core_id; 03487 ast_channel_unlock(chan); 03488 va_start(ap, debug); 03489 res = cc_request_state_change(CC_COMPLETE, core_id, debug, ap); 03490 va_end(ap); 03491 return res; 03492 }
void ast_cc_config_params_destroy | ( | struct ast_cc_config_params * | params | ) |
Free memory from CCSS configuration params.
params | Pointer to structure whose memory we need to free |
void |
Definition at line 546 of file ccss.c.
References ast_free.
Referenced by __sip_destroy(), agent_destroy(), ast_channel_cc_params_init(), cc_interface_destroy(), channel_cc_params_destroy(), destroy_dahdi_pvt(), setup_dahdi(), and sip_destroy_peer().
00547 { 00548 ast_free(params); 00549 }
void ast_cc_copy_config_params | ( | struct ast_cc_config_params * | dest, | |
const struct ast_cc_config_params * | src | |||
) |
copy CCSS configuration parameters from one structure to another
src | The structure from which data is copied | |
dest | The structure to which data is copied |
Definition at line 708 of file ccss.c.
Referenced by ast_channel_cc_params_init(), cc_agent_init(), cc_build_payload(), cc_device_monitor_init(), channel_cc_params_copy(), check_peer_ok(), create_addr_from_peer(), dahdi_new(), deep_copy_dahdi_chan_conf(), and duplicate_pseudo().
void ast_cc_default_config_params | ( | struct ast_cc_config_params * | params | ) |
Set the specified CC config params to default values.
params | CC config params to set to default values. |
Definition at line 525 of file ccss.c.
References cc_default_params.
Referenced by __ast_cc_config_params_init().
00526 { 00527 *params = cc_default_params; 00528 }
void ast_cc_extension_monitor_add_dialstring | ( | struct ast_channel * | incoming, | |
const char *const | dialstring, | |||
const char *const | device_name | |||
) |
Add a child dialstring to an extension monitor.
incoming | The caller's channel | |
dialstring | The dialstring used when requesting the outbound channel | |
device_name | The device name associated with the requested outbound channel |
void |
Definition at line 1680 of file ccss.c.
References ast_calloc, ast_channel_datastore_find(), ast_channel_lock, ast_channel_unlock, ast_copy_string(), AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, extension_monitor_pvt::child_dialstrings, ast_datastore::data, dialed_cc_interfaces::dial_parent_id, dialed_cc_interfaces_info, id, dialed_cc_interfaces::interface_tree, monitor, and cc_monitor_backend::next.
Referenced by dial_exec_full().
01681 { 01682 struct ast_datastore *cc_datastore; 01683 struct dialed_cc_interfaces *cc_interfaces; 01684 struct ast_cc_monitor *monitor; 01685 struct extension_monitor_pvt *extension_pvt; 01686 struct extension_child_dialstring *child_dialstring; 01687 struct cc_monitor_tree *interface_tree; 01688 int id; 01689 01690 ast_channel_lock(incoming); 01691 if (!(cc_datastore = ast_channel_datastore_find(incoming, &dialed_cc_interfaces_info, NULL))) { 01692 ast_channel_unlock(incoming); 01693 return; 01694 } 01695 01696 cc_interfaces = cc_datastore->data; 01697 interface_tree = cc_interfaces->interface_tree; 01698 id = cc_interfaces->dial_parent_id; 01699 ast_channel_unlock(incoming); 01700 01701 AST_LIST_LOCK(interface_tree); 01702 AST_LIST_TRAVERSE(interface_tree, monitor, next) { 01703 if (monitor->id == id) { 01704 break; 01705 } 01706 } 01707 01708 if (!monitor) { 01709 AST_LIST_UNLOCK(interface_tree); 01710 return; 01711 } 01712 01713 extension_pvt = monitor->private_data; 01714 if (!(child_dialstring = ast_calloc(1, sizeof(*child_dialstring)))) { 01715 AST_LIST_UNLOCK(interface_tree); 01716 return; 01717 } 01718 ast_copy_string(child_dialstring->original_dialstring, dialstring, sizeof(child_dialstring->original_dialstring)); 01719 ast_copy_string(child_dialstring->device_name, device_name, sizeof(child_dialstring->device_name)); 01720 child_dialstring->is_valid = 1; 01721 AST_LIST_INSERT_TAIL(&extension_pvt->child_dialstrings, child_dialstring, next); 01722 AST_LIST_UNLOCK(interface_tree); 01723 }
int ast_cc_failed | ( | int | core_id, | |
const char *const | debug, | |||
... | ||||
) |
Indicate failure has occurred.
core_id | core_id of the CC transaction | |
debug | optional string to print for debugging purposes |
0 | Success | |
-1 | Failure |
Definition at line 3494 of file ccss.c.
References CC_FAILED, and cc_request_state_change().
Referenced by cancel_available_timer(), cc_caller_offered(), cc_caller_requested(), cc_monitor_failed(), cccancel_exec(), ccreq_exec(), generic_recall(), handle_cc_subscribe(), kill_cores(), offer_timer_expire(), request_cc(), sig_pri_handle_cis_subcmds(), sip_offer_timer_expire(), suspend(), unsuspend(), and wait_for_answer().
03495 { 03496 va_list ap; 03497 int res; 03498 03499 va_start(ap, debug); 03500 res = cc_request_state_change(CC_FAILED, core_id, debug, ap); 03501 va_end(ap); 03502 return res; 03503 }
int ast_cc_get_current_core_id | ( | struct ast_channel * | chan | ) |
Get the core id for the current call.
The channel given to this function may be an inbound or outbound channel. Both will have the necessary info on it.
chan | The channel from which to get the core_id. |
core_id | on success | |
-1 | Failure |
Definition at line 2169 of file ccss.c.
References ast_channel_datastore_find(), ast_channel_lock, ast_channel_unlock, dialed_cc_interfaces::core_id, ast_datastore::data, dialed_cc_interfaces_info, and dialed_cc_interfaces::ignore.
Referenced by sig_pri_cc_generic_check(), and sip_handle_cc().
02170 { 02171 struct ast_datastore *datastore; 02172 struct dialed_cc_interfaces *cc_interfaces; 02173 int core_id_return; 02174 02175 ast_channel_lock(chan); 02176 if (!(datastore = ast_channel_datastore_find(chan, &dialed_cc_interfaces_info, NULL))) { 02177 ast_channel_unlock(chan); 02178 return -1; 02179 } 02180 02181 cc_interfaces = datastore->data; 02182 core_id_return = cc_interfaces->ignore ? -1 : cc_interfaces->core_id; 02183 ast_channel_unlock(chan); 02184 return core_id_return; 02185 02186 }
struct ast_cc_monitor* ast_cc_get_monitor_by_recall_core_id | ( | const int | core_id, | |
const char *const | device_name | |||
) |
Get the associated monitor given the device name and core_id.
core_id | The core ID to which this recall corresponds. This likely will have been obtained using the ast_cc_is_recall function | |
device_name | Which device to find the monitor for. |
NULL | Appropriate monitor does not exist | |
non-NULL | The monitor to use for this recall |
Definition at line 3150 of file ccss.c.
References AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, cc_ref(), cc_unref(), ast_cc_interface::device_name, find_cc_core_instance(), ast_cc_monitor::interface, cc_core_instance::monitors, and cc_monitor_backend::next.
Referenced by sig_pri_call(), sig_pri_cc_generic_check(), and sip_call().
03151 { 03152 struct cc_core_instance *core_instance = find_cc_core_instance(core_id); 03153 struct ast_cc_monitor *monitor_iter; 03154 03155 if (!core_instance) { 03156 return NULL; 03157 } 03158 03159 AST_LIST_LOCK(core_instance->monitors); 03160 AST_LIST_TRAVERSE(core_instance->monitors, monitor_iter, next) { 03161 if (!strcmp(monitor_iter->interface->device_name, device_name)) { 03162 /* Found a monitor. */ 03163 cc_ref(monitor_iter, "Hand the requester of the monitor a reference"); 03164 break; 03165 } 03166 } 03167 AST_LIST_UNLOCK(core_instance->monitors); 03168 cc_unref(core_instance, "Done with core instance ref in ast_cc_get_monitor_by_recall_core_id"); 03169 return monitor_iter; 03170 }
int ast_cc_get_param | ( | struct ast_cc_config_params * | params, | |
const char *const | name, | |||
char * | buf, | |||
size_t | buf_len | |||
) |
get a CCSS configuration parameter, given its name
params | The CCSS configuration from which to get the value | |
name | The name of the CCSS parameter we want | |
buf | A preallocated buffer to hold the value | |
buf_len | The size of buf |
0 | Success | |
-1 | Failure |
Definition at line 612 of file ccss.c.
References agent_policy_to_str(), ast_copy_string(), ast_get_cc_agent_dialstring(), ast_get_cc_agent_policy(), ast_get_cc_callback_macro(), ast_get_cc_max_agents(), ast_get_cc_max_monitors(), ast_get_cc_monitor_policy(), ast_get_cc_offer_timer(), ast_get_cc_recall_timer(), ast_get_ccbs_available_timer(), ast_get_ccnr_available_timer(), ast_log(), ast_strlen_zero(), LOG_WARNING, monitor_policy_to_str(), and value.
Referenced by acf_cc_read().
00614 { 00615 const char *value = NULL; 00616 if (!strcasecmp(name, "cc_callback_macro")) { 00617 value = ast_get_cc_callback_macro(params); 00618 } else if (!strcasecmp(name, "cc_agent_policy")) { 00619 value = agent_policy_to_str(ast_get_cc_agent_policy(params)); 00620 } else if (!strcasecmp(name, "cc_monitor_policy")) { 00621 value = monitor_policy_to_str(ast_get_cc_monitor_policy(params)); 00622 } else if (!strcasecmp(name, "cc_agent_dialstring")) { 00623 value = ast_get_cc_agent_dialstring(params); 00624 } 00625 00626 if (!ast_strlen_zero(value)) { 00627 ast_copy_string(buf, value, buf_len); 00628 return 0; 00629 } 00630 00631 /* The rest of these are all ints of some sort and require some 00632 * snprintf-itude 00633 */ 00634 00635 if (!strcasecmp(name, "cc_offer_timer")) { 00636 snprintf(buf, buf_len, "%u", ast_get_cc_offer_timer(params)); 00637 } else if (!strcasecmp(name, "ccnr_available_timer")) { 00638 snprintf(buf, buf_len, "%u", ast_get_ccnr_available_timer(params)); 00639 } else if (!strcasecmp(name, "ccbs_available_timer")) { 00640 snprintf(buf, buf_len, "%u", ast_get_ccbs_available_timer(params)); 00641 } else if (!strcasecmp(name, "cc_max_agents")) { 00642 snprintf(buf, buf_len, "%u", ast_get_cc_max_agents(params)); 00643 } else if (!strcasecmp(name, "cc_max_monitors")) { 00644 snprintf(buf, buf_len, "%u", ast_get_cc_max_monitors(params)); 00645 } else if (!strcasecmp(name, "cc_recall_timer")) { 00646 snprintf(buf, buf_len, "%u", ast_get_cc_recall_timer(params)); 00647 } else { 00648 ast_log(LOG_WARNING, "%s is not a valid CC parameter. Ignoring.\n", name); 00649 return -1; 00650 } 00651 00652 return 0; 00653 }
int ast_cc_init | ( | void | ) |
Initialize CCSS.
0 | Success | |
nonzero | Failure |
Definition at line 4178 of file ccss.c.
References ao2_t_container_alloc, ARRAY_LEN, ast_cc_agent_register(), ast_cc_monitor_register(), ast_cli_register_multiple(), ast_logger_register_level(), ast_register_application2(), ast_sched_thread_create(), ast_taskprocessor_get(), cc_cli, cc_core_instance_cmp_fn(), cc_core_instance_hash_fn(), cc_core_instances, cc_core_taskprocessor, cc_sched_thread, cccancel_exec(), ccreq_exec(), generic_agent_callbacks, generic_monitor_cbs, generic_monitor_cmp_fn(), generic_monitor_hash_fn(), generic_monitors, initialize_cc_max_requests(), and TPS_REF_DEFAULT.
Referenced by main().
04179 { 04180 int res; 04181 04182 if (!(cc_core_instances = ao2_t_container_alloc(CC_CORE_INSTANCES_BUCKETS, 04183 cc_core_instance_hash_fn, cc_core_instance_cmp_fn, 04184 "Create core instance container"))) { 04185 return -1; 04186 } 04187 if (!(generic_monitors = ao2_t_container_alloc(CC_CORE_INSTANCES_BUCKETS, 04188 generic_monitor_hash_fn, generic_monitor_cmp_fn, 04189 "Create generic monitor container"))) { 04190 return -1; 04191 } 04192 if (!(cc_core_taskprocessor = ast_taskprocessor_get("CCSS core", TPS_REF_DEFAULT))) { 04193 return -1; 04194 } 04195 if (!(cc_sched_thread = ast_sched_thread_create())) { 04196 return -1; 04197 } 04198 res = ast_register_application2(ccreq_app, ccreq_exec, NULL, NULL, NULL); 04199 res |= ast_register_application2(cccancel_app, cccancel_exec, NULL, NULL, NULL); 04200 res |= ast_cc_monitor_register(&generic_monitor_cbs); 04201 res |= ast_cc_agent_register(&generic_agent_callbacks); 04202 ast_cli_register_multiple(cc_cli, ARRAY_LEN(cc_cli)); 04203 cc_logger_level = ast_logger_register_level(CC_LOGGER_LEVEL_NAME); 04204 dialed_cc_interface_counter = 1; 04205 initialize_cc_max_requests(); 04206 return res; 04207 }
int ast_cc_is_config_param | ( | const char *const | name | ) |
Is this a CCSS configuration parameter?
name | Name of configuration option being parsed. |
1 | Yes, this is a CCSS configuration parameter. | |
0 | No, this is not a CCSS configuration parameter. |
Definition at line 694 of file ccss.c.
Referenced by build_peer().
00695 { 00696 return (!strcasecmp(name, "cc_agent_policy") || 00697 !strcasecmp(name, "cc_monitor_policy") || 00698 !strcasecmp(name, "cc_offer_timer") || 00699 !strcasecmp(name, "ccnr_available_timer") || 00700 !strcasecmp(name, "ccbs_available_timer") || 00701 !strcasecmp(name, "cc_max_agents") || 00702 !strcasecmp(name, "cc_max_monitors") || 00703 !strcasecmp(name, "cc_callback_macro") || 00704 !strcasecmp(name, "cc_agent_dialstring") || 00705 !strcasecmp(name, "cc_recall_timer")); 00706 }
int ast_cc_is_recall | ( | struct ast_channel * | chan, | |
int * | core_id, | |||
const char *const | monitor_type | |||
) |
Decide if a call to a particular channel is a CC recall.
As a quick example, let's say a call is placed to SIP/1000 and SIP/1000 is currently on the phone. The caller requests CCBS. SIP/1000 finishes his call, and so the caller attempts to recall. Now, the dialplan administrator has set up this second call so that not only is SIP/1000 called, but also SIP/2000 is called. If SIP/1000's channel were passed to this function, the return value would be non-zero, but if SIP/2000's channel were passed into this function, then the return would be 0 since SIP/2000 was not one of the original devices dialed.
This function will lock the channel as well as the list of monitors on the channel datastore, though the locks are not held at the same time. Be sure that you have no potential lock order issues here.
chan | The channel to check | |
[out] | core_id | If this is a valid CC recall, the core_id of the failed call will be placed in this output parameter |
monitor_type | Clarify which type of monitor type we are looking for if this is happening on a called channel. For incoming channels, this parameter is not used. |
0 | Either this is not a recall or it is but this channel is not part of the recall | |
non-zero | This is a recall and the channel in question is directly involved. |
Definition at line 3069 of file ccss.c.
References ast_assert, ast_channel_datastore_find(), ast_channel_get_device_name(), ast_channel_lock, AST_CHANNEL_NAME, ast_channel_unlock, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_strlen_zero(), cc_recall_ds_data::core_id, ast_datastore::data, ast_cc_interface::device_name, cc_recall_ds_data::ignore, ast_cc_monitor::interface, cc_recall_ds_data::interface_tree, ast_cc_interface::monitor_type, cc_recall_ds_data::nested, cc_monitor_backend::next, and recall_ds_info.
Referenced by cc_core_init_instance(), sig_pri_call(), sip_call(), and wait_for_answer().
03070 { 03071 struct ast_datastore *recall_datastore; 03072 struct cc_recall_ds_data *recall_data; 03073 struct cc_monitor_tree *interface_tree; 03074 char device_name[AST_CHANNEL_NAME]; 03075 struct ast_cc_monitor *device_monitor; 03076 int core_id_candidate; 03077 03078 ast_assert(core_id != NULL); 03079 03080 *core_id = -1; 03081 03082 ast_channel_lock(chan); 03083 if (!(recall_datastore = ast_channel_datastore_find(chan, &recall_ds_info, NULL))) { 03084 /* Obviously not a recall if the datastore isn't present */ 03085 ast_channel_unlock(chan); 03086 return 0; 03087 } 03088 03089 recall_data = recall_datastore->data; 03090 03091 if (recall_data->ignore) { 03092 /* Though this is a recall, the call to this particular interface is not part of the 03093 * recall either because this is a call forward or because this is not the first 03094 * invocation of Dial during this call 03095 */ 03096 ast_channel_unlock(chan); 03097 return 0; 03098 } 03099 03100 if (!recall_data->nested) { 03101 /* If the nested flag is not set, then this means that 03102 * the channel passed to this function is the caller making 03103 * the recall. This means that we shouldn't look through 03104 * the monitor tree for the channel because it shouldn't be 03105 * there. However, this is a recall though, so return true. 03106 */ 03107 *core_id = recall_data->core_id; 03108 ast_channel_unlock(chan); 03109 return 1; 03110 } 03111 03112 if (ast_strlen_zero(monitor_type)) { 03113 /* If someone passed a NULL or empty monitor type, then it is clear 03114 * the channel they passed in was an incoming channel, and so searching 03115 * the list of dialed interfaces is not going to be helpful. Just return 03116 * false immediately. 03117 */ 03118 ast_channel_unlock(chan); 03119 return 0; 03120 } 03121 03122 interface_tree = recall_data->interface_tree; 03123 ast_channel_get_device_name(chan, device_name, sizeof(device_name)); 03124 /* We grab the value of the recall_data->core_id so that we 03125 * can unlock the channel before we start looking through the 03126 * interface list. That way we don't have to worry about a possible 03127 * clash between the channel lock and the monitor tree lock. 03128 */ 03129 core_id_candidate = recall_data->core_id; 03130 ast_channel_unlock(chan); 03131 03132 /* 03133 * Now we need to find out if the channel device name 03134 * is in the list of interfaces in the called tree. 03135 */ 03136 AST_LIST_LOCK(interface_tree); 03137 AST_LIST_TRAVERSE(interface_tree, device_monitor, next) { 03138 if (!strcmp(device_monitor->interface->device_name, device_name) && 03139 !strcmp(device_monitor->interface->monitor_type, monitor_type)) { 03140 /* BOOM! Device is in the tree! We have a winner! */ 03141 *core_id = core_id_candidate; 03142 AST_LIST_UNLOCK(interface_tree); 03143 return 1; 03144 } 03145 } 03146 AST_LIST_UNLOCK(interface_tree); 03147 return 0; 03148 }
int ast_cc_monitor_callee_available | ( | const int | core_id, | |
const char *const | debug, | |||
... | ||||
) |
Alert the core that a device being monitored has become available.
core_id | The core ID of the corresponding CC transaction | |
debug |
0 | Request successfully queued | |
-1 | Request could not be queued |
Definition at line 3413 of file ccss.c.
References CC_CALLEE_READY, and cc_request_state_change().
Referenced by cc_generic_monitor_destructor(), cc_generic_monitor_suspend(), cc_generic_monitor_unsuspend(), generic_monitor_devstate_tp_cb(), handle_cc_notify(), and sig_pri_handle_cis_subcmds().
03414 { 03415 va_list ap; 03416 int res; 03417 03418 va_start(ap, debug); 03419 res = cc_request_state_change(CC_CALLEE_READY, core_id, debug, ap); 03420 va_end(ap); 03421 return res; 03422 }
int ast_cc_monitor_count | ( | const char *const | name, | |
const char *const | type | |||
) |
Return the number of outstanding CC requests to a specific device.
name | The name of the monitored device | |
type | The type of the monitored device (e.g. "generic") |
Definition at line 3970 of file ccss.c.
References ao2_t_callback, ast_log_dynamic_level, cc_core_instances, count_monitors_cb_data::count, count_monitors_cb(), count_monitors_cb_data::device_name, and OBJ_NODATA.
Referenced by ast_queue_cc_frame().
03971 { 03972 struct count_monitors_cb_data data = {.device_name = name, .monitor_type = type,}; 03973 03974 ao2_t_callback(cc_core_instances, OBJ_NODATA, count_monitors_cb, &data, "Counting agents"); 03975 ast_log_dynamic_level(cc_logger_level, "Counted %d monitors\n", data.count); 03976 return data.count; 03977 }
int ast_cc_monitor_failed | ( | int | core_id, | |
const char *const | monitor_name, | |||
const char *const | debug, | |||
... | ||||
) |
Indicate that a failure has occurred on a specific monitor.
If there are no more devices left to monitor when this function is called, then the core will fail the CC transaction globally.
core_id | The core ID for the CC transaction | |
monitor_name | The name of the monitor on which the failure occurred | |
debug | A debug message to print to the CC log |
Definition at line 3559 of file ccss.c.
References ast_calloc, ast_free, ast_strdup, ast_taskprocessor_push(), ast_vasprintf, cc_core_taskprocessor, and cc_monitor_failed().
Referenced by ast_cc_available_timer_expire(), cc_handle_publish_error(), handle_response(), and sig_pri_handle_cis_subcmds().
03560 { 03561 struct ast_cc_monitor_failure_data *failure_data; 03562 int res; 03563 va_list ap; 03564 03565 if (!(failure_data = ast_calloc(1, sizeof(*failure_data)))) { 03566 return -1; 03567 } 03568 03569 if (!(failure_data->device_name = ast_strdup(monitor_name))) { 03570 ast_free(failure_data); 03571 return -1; 03572 } 03573 03574 va_start(ap, debug); 03575 if (ast_vasprintf(&failure_data->debug, debug, ap) == -1) { 03576 va_end(ap); 03577 ast_free((char *)failure_data->device_name); 03578 ast_free(failure_data); 03579 return -1; 03580 } 03581 va_end(ap); 03582 03583 failure_data->core_id = core_id; 03584 03585 res = ast_taskprocessor_push(cc_core_taskprocessor, cc_monitor_failed, failure_data); 03586 if (res) { 03587 ast_free((char *)failure_data->device_name); 03588 ast_free((char *)failure_data->debug); 03589 ast_free(failure_data); 03590 } 03591 return res; 03592 }
int ast_cc_monitor_party_b_free | ( | int | core_id | ) |
Alert a caller that though the callee has become free, the caller himself is not and may not call back.
When an ISDN PTMP monitor senses that his monitored party has become available, he will request the status of the called party. If he determines that the caller is currently not available, then he will call this function so that an appropriate message is sent to the caller.
Yes, you just read that correctly. The callee asks the caller what his current status is, and if the caller is currently unavailable, the monitor must send him a message anyway. WTF?
This function results in the agent's party_b_free callback being called. It is most likely that you will not need to actually implement the party_b_free callback in an agent because it is not likely that you will need to or even want to send a caller a message indicating the callee's status if the caller himself is not also free.
core_id | The core ID of the CC transaction |
0 | Successfully alerted the core that party B is free | |
-1 | Could not alert the core that party B is free |
Definition at line 3669 of file ccss.c.
References ast_taskprocessor_push(), cc_core_taskprocessor, cc_party_b_free(), cc_unref(), and find_cc_core_instance().
Referenced by sig_pri_handle_cis_subcmds().
03670 { 03671 int res; 03672 struct cc_core_instance *core_instance = find_cc_core_instance(core_id); 03673 03674 if (!core_instance) { 03675 return -1; 03676 } 03677 03678 res = ast_taskprocessor_push(cc_core_taskprocessor, cc_party_b_free, core_instance); 03679 if (res) { 03680 cc_unref(core_instance, "Unref core instance. ast_taskprocessor_push failed"); 03681 } 03682 return res; 03683 }
int ast_cc_monitor_register | ( | const struct ast_cc_monitor_callbacks * | callbacks | ) |
Register a set of monitor callbacks with the core.
callbacks | The callbacks used by the monitor implementation |
0 | Successfully registered | |
-1 | Failure to register |
Definition at line 862 of file ccss.c.
References ast_calloc, AST_RWLIST_INSERT_TAIL, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, and cc_monitor_backend::next.
Referenced by ast_cc_init(), and load_module().
00863 { 00864 struct cc_monitor_backend *backend = ast_calloc(1, sizeof(*backend)); 00865 00866 if (!backend) { 00867 return -1; 00868 } 00869 00870 backend->callbacks = callbacks; 00871 00872 AST_RWLIST_WRLOCK(&cc_monitor_backends); 00873 AST_RWLIST_INSERT_TAIL(&cc_monitor_backends, backend, next); 00874 AST_RWLIST_UNLOCK(&cc_monitor_backends); 00875 return 0; 00876 }
int ast_cc_monitor_request_acked | ( | int | core_id, | |
const char *const | debug, | |||
... | ||||
) |
Indicate that an outbound entity has accepted our CC request.
core_id | core_id of the CC transaction | |
debug | optional string to print for debugging purposes |
0 | Success | |
-1 | Failure |
Definition at line 3402 of file ccss.c.
References CC_ACTIVE, and cc_request_state_change().
Referenced by cc_generic_monitor_request_cc(), cc_stop_ringing(), handle_cc_notify(), and sig_pri_handle_cis_subcmds().
03403 { 03404 va_list ap; 03405 int res; 03406 03407 va_start(ap, debug); 03408 res = cc_request_state_change(CC_ACTIVE, core_id, debug, ap); 03409 va_end(ap); 03410 return res; 03411 }
int ast_cc_monitor_status_request | ( | int | core_id | ) |
Request the status of a caller or callers.
When an ISDN PTMP monitor senses that the callee has become available, it needs to know the current status of the caller in order to determine the appropriate response to send to the caller. In order to do this, the monitor calls this function. Responses will arrive asynchronously.
core_id | The core ID of the CC transaction |
0 | Successfully requested status | |
-1 | Failed to request status |
Definition at line 3604 of file ccss.c.
References ast_taskprocessor_push(), cc_core_taskprocessor, cc_status_request(), cc_unref(), and find_cc_core_instance().
Referenced by sig_pri_handle_cis_subcmds().
03605 { 03606 int res; 03607 struct cc_core_instance *core_instance = find_cc_core_instance(core_id); 03608 03609 if (!core_instance) { 03610 return -1; 03611 } 03612 03613 res = ast_taskprocessor_push(cc_core_taskprocessor, cc_status_request, core_instance); 03614 if (res) { 03615 cc_unref(core_instance, "Unref core instance. ast_taskprocessor_push failed"); 03616 } 03617 return res; 03618 }
int ast_cc_monitor_stop_ringing | ( | int | core_id | ) |
Alert a caller to stop ringing.
When an ISDN PTMP monitor becomes available, it is assumed that the agent will then cause the caller's phone to ring. In some cases, this is literally what happens. In other cases, it may be that the caller gets a visible indication on his phone that he may attempt to recall the callee. If multiple callers are recalled (since it may be possible to have a group of callers configured as a single party A), and one of those callers picks up his phone, then the ISDN PTMP monitor will alert the other callers to stop ringing. The agent's stop_ringing callback will be called, and it is up to the agent's driver to send an appropriate message to make his caller stop ringing.
core_id | The core ID of the CC transaction |
0 | Successfully requested for the phone to stop ringing | |
-1 | Could not request for the phone to stop ringing |
Definition at line 3641 of file ccss.c.
References ast_taskprocessor_push(), cc_core_taskprocessor, cc_stop_ringing(), cc_unref(), and find_cc_core_instance().
Referenced by sig_pri_handle_cis_subcmds().
03642 { 03643 int res; 03644 struct cc_core_instance *core_instance = find_cc_core_instance(core_id); 03645 03646 if (!core_instance) { 03647 return -1; 03648 } 03649 03650 res = ast_taskprocessor_push(cc_core_taskprocessor, cc_stop_ringing, core_instance); 03651 if (res) { 03652 cc_unref(core_instance, "Unref core instance. ast_taskprocessor_push failed"); 03653 } 03654 return res; 03655 }
void ast_cc_monitor_unregister | ( | const struct ast_cc_monitor_callbacks * | callbacks | ) |
Unregister a set of monitor callbacks with the core.
callbacks | The callbacks used by the monitor implementation |
0 | Successfully unregistered | |
-1 | Failure to unregister |
Definition at line 895 of file ccss.c.
References ast_free, AST_RWLIST_REMOVE_CURRENT, AST_RWLIST_TRAVERSE_SAFE_BEGIN, AST_RWLIST_TRAVERSE_SAFE_END, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, cc_monitor_backend::callbacks, and cc_monitor_backend::next.
Referenced by __unload_module(), and unload_module().
00896 { 00897 struct cc_monitor_backend *backend; 00898 AST_RWLIST_WRLOCK(&cc_monitor_backends); 00899 AST_RWLIST_TRAVERSE_SAFE_BEGIN(&cc_monitor_backends, backend, next) { 00900 if (backend->callbacks == callbacks) { 00901 AST_RWLIST_REMOVE_CURRENT(next); 00902 ast_free(backend); 00903 break; 00904 } 00905 } 00906 AST_RWLIST_TRAVERSE_SAFE_END; 00907 AST_RWLIST_UNLOCK(&cc_monitor_backends); 00908 }
int ast_cc_offer | ( | struct ast_channel * | caller_chan | ) |
Offer CC to a caller.
caller_chan | The calling channel |
-1 | Error | |
0 | Success |
Definition at line 3366 of file ccss.c.
References ast_channel_datastore_find(), ast_channel_lock, ast_channel_unlock, cc_offer(), cc_recall_ds_data::core_id, dialed_cc_interfaces::core_id, ast_datastore::data, dialed_cc_interfaces_info, dialed_cc_interfaces::is_original_caller, and ast_channel::name.
Referenced by ast_hangup().
03367 { 03368 int core_id; 03369 int res = -1; 03370 struct ast_datastore *datastore; 03371 struct dialed_cc_interfaces *cc_interfaces; 03372 char cc_is_offerable; 03373 03374 ast_channel_lock(caller_chan); 03375 if (!(datastore = ast_channel_datastore_find(caller_chan, &dialed_cc_interfaces_info, NULL))) { 03376 ast_channel_unlock(caller_chan); 03377 return res; 03378 } 03379 03380 cc_interfaces = datastore->data; 03381 cc_is_offerable = cc_interfaces->is_original_caller; 03382 core_id = cc_interfaces->core_id; 03383 ast_channel_unlock(caller_chan); 03384 03385 if (cc_is_offerable) { 03386 res = cc_offer(core_id, "CC offered to caller %s", caller_chan->name); 03387 } 03388 return res; 03389 }
int ast_cc_request_is_within_limits | ( | void | ) |
Check if the incoming CC request is within the bounds set by the cc_max_requests configuration option.
If this is not called and a state change to CC_CALLER_REQUESTED is made, then the core will still not allow for the request to succeed. However, if done this way, it may not be obvious to the requestor why the request failed.
0 | Not within the limits. Fail. | |
non-zero | Within the limits. Success. |
Definition at line 2164 of file ccss.c.
Referenced by cc_caller_requested(), cc_interfaces_datastore_init(), ccreq_exec(), and sig_pri_handle_cis_subcmds().
02165 { 02166 return cc_request_count < global_cc_max_requests; 02167 }
int ast_cc_set_param | ( | struct ast_cc_config_params * | params, | |
const char *const | name, | |||
const char * | value | |||
) |
set a CCSS configuration parameter, given its name
params | The parameter structure to set the value on | |
name | The name of the cc parameter | |
value | The value of the parameter |
0 | Success | |
-1 | Failure |
Definition at line 655 of file ccss.c.
References ast_log(), ast_set_cc_agent_dialstring(), ast_set_cc_agent_policy(), ast_set_cc_callback_macro(), ast_set_cc_max_agents(), ast_set_cc_max_monitors(), ast_set_cc_monitor_policy(), ast_set_cc_offer_timer(), ast_set_cc_recall_timer(), ast_set_ccbs_available_timer(), ast_set_ccnr_available_timer(), LOG_WARNING, str_to_agent_policy(), and str_to_monitor_policy().
Referenced by acf_cc_write(), and build_peer().
00657 { 00658 unsigned int value_as_uint; 00659 if (!strcasecmp(name, "cc_agent_policy")) { 00660 return ast_set_cc_agent_policy(params, str_to_agent_policy(value)); 00661 } else if (!strcasecmp(name, "cc_monitor_policy")) { 00662 return ast_set_cc_monitor_policy(params, str_to_monitor_policy(value)); 00663 } else if (!strcasecmp(name, "cc_agent_dialstring")) { 00664 ast_set_cc_agent_dialstring(params, value); 00665 } else if (!strcasecmp(name, "cc_callback_macro")) { 00666 ast_set_cc_callback_macro(params, value); 00667 return 0; 00668 } 00669 00670 if (!sscanf(value, "%30u", &value_as_uint) == 1) { 00671 return -1; 00672 } 00673 00674 if (!strcasecmp(name, "cc_offer_timer")) { 00675 ast_set_cc_offer_timer(params, value_as_uint); 00676 } else if (!strcasecmp(name, "ccnr_available_timer")) { 00677 ast_set_ccnr_available_timer(params, value_as_uint); 00678 } else if (!strcasecmp(name, "ccbs_available_timer")) { 00679 ast_set_ccbs_available_timer(params, value_as_uint); 00680 } else if (!strcasecmp(name, "cc_max_agents")) { 00681 ast_set_cc_max_agents(params, value_as_uint); 00682 } else if (!strcasecmp(name, "cc_max_monitors")) { 00683 ast_set_cc_max_monitors(params, value_as_uint); 00684 } else if (!strcasecmp(name, "cc_recall_timer")) { 00685 ast_set_cc_recall_timer(params, value_as_uint); 00686 } else { 00687 ast_log(LOG_WARNING, "%s is not a valid CC parameter. Ignoring.\n", name); 00688 return -1; 00689 } 00690 00691 return 0; 00692 }
const char* ast_get_cc_agent_dialstring | ( | struct ast_cc_config_params * | config | ) |
Get the cc_agent_dialstring.
config | The configuration to retrieve the cc_agent_dialstring from |
Definition at line 807 of file ccss.c.
References config.
Referenced by ast_cc_get_param(), and generic_recall().
00808 { 00809 return config->cc_agent_dialstring; 00810 }
enum ast_cc_agent_policies ast_get_cc_agent_policy | ( | struct ast_cc_config_params * | config | ) |
Get the cc_agent_policy.
config | The configuration to retrieve the policy from |
Definition at line 713 of file ccss.c.
References config.
Referenced by ast_cc_call_init(), ast_cc_get_param(), build_peer(), cc_core_init_instance(), and find_agent_callbacks().
00714 { 00715 return config->cc_agent_policy; 00716 }
const char* ast_get_cc_callback_macro | ( | struct ast_cc_config_params * | config | ) |
Get the name of the callback_macro.
config | The configuration to retrieve the callback_macro from |
Definition at line 841 of file ccss.c.
References config.
Referenced by ast_cc_get_param(), and generic_recall().
00842 { 00843 return config->cc_callback_macro; 00844 }
unsigned int ast_get_cc_max_agents | ( | struct ast_cc_config_params * | config | ) |
Get the cc_max_agents.
config | The configuration to retrieve the cc_max_agents from |
Definition at line 821 of file ccss.c.
References config.
Referenced by ast_cc_get_param(), and cc_core_init_instance().
00822 { 00823 return config->cc_max_agents; 00824 }
unsigned int ast_get_cc_max_monitors | ( | struct ast_cc_config_params * | config | ) |
Get the cc_max_monitors.
config | The configuration to retrieve the cc_max_monitors from |
Definition at line 831 of file ccss.c.
References config.
Referenced by ast_cc_get_param(), and ast_queue_cc_frame().
00832 { 00833 return config->cc_max_monitors; 00834 }
enum ast_cc_monitor_policies ast_get_cc_monitor_policy | ( | struct ast_cc_config_params * | config | ) |
Get the cc_monitor_policy.
config | The configuration to retrieve the cc_monitor_policy from |
Definition at line 730 of file ccss.c.
References config.
Referenced by analog_call(), ast_cc_call_failed(), ast_cc_get_param(), dahdi_cc_callback(), sig_pri_cc_generic_check(), and sip_handle_cc().
00731 { 00732 return config->cc_monitor_policy; 00733 }
unsigned int ast_get_cc_offer_timer | ( | struct ast_cc_config_params * | config | ) |
Get the cc_offer_timer.
config | The configuration to retrieve the cc_offer_timer from |
Definition at line 747 of file ccss.c.
References config.
Referenced by ast_cc_get_param(), cc_generic_agent_start_offer_timer(), and sip_cc_agent_start_offer_timer().
00748 { 00749 return config->cc_offer_timer; 00750 }
unsigned int ast_get_cc_recall_timer | ( | struct ast_cc_config_params * | config | ) |
Get the cc_recall_timer.
config | The configuration to retrieve the cc_recall_timer from |
Definition at line 777 of file ccss.c.
References config.
Referenced by ast_cc_get_param(), and generic_recall().
00778 { 00779 return config->cc_recall_timer; 00780 }
unsigned int ast_get_ccbs_available_timer | ( | struct ast_cc_config_params * | config | ) |
Get the ccbs_available_timer.
config | The configuration to retrieve the ccbs_available_timer from |
Definition at line 792 of file ccss.c.
References config.
Referenced by ast_cc_get_param(), cc_generic_monitor_request_cc(), and sip_cc_monitor_request_cc().
00793 { 00794 return config->ccbs_available_timer; 00795 }
unsigned int ast_get_ccnr_available_timer | ( | struct ast_cc_config_params * | config | ) |
Get the ccnr_available_timer.
config | The configuration to retrieve the ccnr_available_timer from |
Definition at line 762 of file ccss.c.
References config.
Referenced by ast_cc_get_param(), cc_generic_monitor_request_cc(), and sip_cc_monitor_request_cc().
00763 { 00764 return config->ccnr_available_timer; 00765 }
void ast_handle_cc_control_frame | ( | struct ast_channel * | inbound, | |
struct ast_channel * | outbound, | |||
void * | frame_data | |||
) |
Properly react to a CC control frame.
Unless we are ignoring CC for some reason, we will always call this function when we read an AST_CONTROL_CC frame from an outbound channel.
This function will call cc_device_monitor_init to create the new cc_monitor for the device from which we read the frame. In addition, the new device will be added to the monitor tree on the dialed_cc_interfaces datastore on the inbound channel.
If this is the first AST_CONTROL_CC frame that we have handled for this call, then we will also initialize the CC core for this call.
Definition at line 1993 of file ccss.c.
References ast_channel_datastore_find(), ast_channel_lock, ast_channel_unlock, AST_CONTROL_CC, ast_indicate_data(), AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_log(), ast_log_dynamic_level, call_destructor_with_no_monitor(), cc_core_init_instance(), cc_device_monitor_init(), cc_extension_monitor_change_is_valid(), cc_ref(), cc_service_to_string(), cc_unref(), dialed_cc_interfaces::core_id, cc_core_instance::core_id, ast_datastore::data, cc_control_payload::device_name, dialed_cc_interfaces_info, ast_cc_monitor::dialstring, cc_control_payload::dialstring, EVENT_FLAG_CC, find_cc_core_instance(), dialed_cc_interfaces::ignore, dialed_cc_interfaces::interface_tree, dialed_cc_interfaces::is_original_caller, LOG_WARNING, manager_event, monitor, cc_control_payload::monitor_type, cc_monitor_backend::next, cc_control_payload::private_data, and cc_control_payload::service.
Referenced by ast_cc_busy_interface(), and ast_cc_call_failed().
01994 { 01995 char *device_name; 01996 char *dialstring; 01997 struct ast_cc_monitor *monitor; 01998 struct ast_datastore *cc_datastore; 01999 struct dialed_cc_interfaces *cc_interfaces; 02000 struct cc_control_payload *cc_data = frame_data; 02001 struct cc_core_instance *core_instance; 02002 02003 device_name = cc_data->device_name; 02004 dialstring = cc_data->dialstring; 02005 02006 ast_channel_lock(inbound); 02007 if (!(cc_datastore = ast_channel_datastore_find(inbound, &dialed_cc_interfaces_info, NULL))) { 02008 ast_log(LOG_WARNING, "Unable to retrieve CC datastore while processing CC frame from '%s'. CC services will be unavailable.\n", device_name); 02009 ast_channel_unlock(inbound); 02010 call_destructor_with_no_monitor(cc_data->monitor_type, cc_data->private_data); 02011 return; 02012 } 02013 02014 cc_interfaces = cc_datastore->data; 02015 02016 if (cc_interfaces->ignore) { 02017 ast_channel_unlock(inbound); 02018 call_destructor_with_no_monitor(cc_data->monitor_type, cc_data->private_data); 02019 return; 02020 } 02021 02022 if (!cc_interfaces->is_original_caller) { 02023 /* If the is_original_caller is not set on the *inbound* channel, then 02024 * it must be a local channel. As such, we do not want to create a core instance 02025 * or an agent for the local channel. Instead, we want to pass this along to the 02026 * other side of the local channel so that the original caller can benefit. 02027 */ 02028 ast_channel_unlock(inbound); 02029 ast_indicate_data(inbound, AST_CONTROL_CC, cc_data, sizeof(*cc_data)); 02030 return; 02031 } 02032 02033 core_instance = find_cc_core_instance(cc_interfaces->core_id); 02034 if (!core_instance) { 02035 core_instance = cc_core_init_instance(inbound, cc_interfaces->interface_tree, 02036 cc_interfaces->core_id, cc_data); 02037 if (!core_instance) { 02038 cc_interfaces->ignore = 1; 02039 ast_channel_unlock(inbound); 02040 call_destructor_with_no_monitor(cc_data->monitor_type, cc_data->private_data); 02041 return; 02042 } 02043 } 02044 02045 ast_channel_unlock(inbound); 02046 02047 /* Yeah this kind of sucks, but luckily most people 02048 * aren't dialing thousands of interfaces on every call 02049 * 02050 * This traversal helps us to not create duplicate monitors in 02051 * case a device queues multiple CC control frames. 02052 */ 02053 AST_LIST_LOCK(cc_interfaces->interface_tree); 02054 AST_LIST_TRAVERSE(cc_interfaces->interface_tree, monitor, next) { 02055 if (!strcmp(monitor->interface->device_name, device_name)) { 02056 ast_log_dynamic_level(cc_logger_level, "Core %d: Device %s sent us multiple CC control frames. Ignoring those beyond the first.\n", 02057 core_instance->core_id, device_name); 02058 AST_LIST_UNLOCK(cc_interfaces->interface_tree); 02059 cc_unref(core_instance, "Returning early from ast_handle_cc_control_frame. Unref core_instance"); 02060 call_destructor_with_no_monitor(cc_data->monitor_type, cc_data->private_data); 02061 return; 02062 } 02063 } 02064 AST_LIST_UNLOCK(cc_interfaces->interface_tree); 02065 02066 if (!(monitor = cc_device_monitor_init(device_name, dialstring, cc_data, core_instance->core_id))) { 02067 ast_log(LOG_WARNING, "Unable to create CC device interface for '%s'. CC services will be unavailable on this interface.\n", device_name); 02068 cc_unref(core_instance, "Returning early from ast_handle_cc_control_frame. Unref core_instance"); 02069 call_destructor_with_no_monitor(cc_data->monitor_type, cc_data->private_data); 02070 return; 02071 } 02072 02073 AST_LIST_LOCK(cc_interfaces->interface_tree); 02074 cc_ref(monitor, "monitor tree's reference to the monitor"); 02075 AST_LIST_INSERT_TAIL(cc_interfaces->interface_tree, monitor, next); 02076 AST_LIST_UNLOCK(cc_interfaces->interface_tree); 02077 02078 cc_extension_monitor_change_is_valid(core_instance, monitor->parent_id, monitor->interface->device_name, 0); 02079 02080 manager_event(EVENT_FLAG_CC, "CCAvailable", 02081 "CoreID: %d\r\n" 02082 "Callee: %s\r\n" 02083 "Service: %s\r\n", 02084 cc_interfaces->core_id, device_name, cc_service_to_string(cc_data->service) 02085 ); 02086 02087 cc_unref(core_instance, "Done with core_instance after handling CC control frame"); 02088 cc_unref(monitor, "Unref reference from allocating monitor"); 02089 }
void ast_ignore_cc | ( | struct ast_channel * | chan | ) |
Mark the channel to ignore further CC activity.
chan | The channel for which further CC processing should be ignored. |
void |
Definition at line 3335 of file ccss.c.
References ast_channel_datastore_find(), ast_channel_lock, ast_channel_unlock, ast_datastore::data, dialed_cc_interfaces_info, dialed_cc_interfaces::ignore, cc_recall_ds_data::ignore, and recall_ds_info.
Referenced by dial_exec_full(), and do_forward().
03336 { 03337 struct ast_datastore *cc_datastore; 03338 struct ast_datastore *cc_recall_datastore; 03339 struct dialed_cc_interfaces *cc_interfaces; 03340 struct cc_recall_ds_data *recall_cc_data; 03341 03342 ast_channel_lock(chan); 03343 if ((cc_datastore = ast_channel_datastore_find(chan, &dialed_cc_interfaces_info, NULL))) { 03344 cc_interfaces = cc_datastore->data; 03345 cc_interfaces->ignore = 1; 03346 } 03347 03348 if ((cc_recall_datastore = ast_channel_datastore_find(chan, &recall_ds_info, NULL))) { 03349 recall_cc_data = cc_recall_datastore->data; 03350 recall_cc_data->ignore = 1; 03351 } 03352 ast_channel_unlock(chan); 03353 }
int ast_queue_cc_frame | ( | struct ast_channel * | chan, | |
const char *const | monitor_type, | |||
const char *const | dialstring, | |||
enum ast_cc_service_type | service, | |||
void * | private_data | |||
) |
Queue an AST_CONTROL_CC frame.
chan | The channel onto which to queue the frame | |
monitor_type | The type of monitor to use when CC is requested | |
dialstring | The dial string used to call the device | |
service | The type of CC service the device is willing to offer | |
private_data | If a native monitor is being used, and some channel-driver-specific private data has been allocated, then this parameter should contain a pointer to that data. If using a generic monitor, this parameter should remain NULL. Note that if this function should fail at some point, it is the responsibility of the caller to free the private data upon return. |
0 | Success | |
-1 | Error |
Definition at line 3767 of file ccss.c.
References ast_cc_build_frame(), ast_cc_monitor_count(), ast_channel_get_cc_config_params(), ast_channel_get_device_name(), AST_CHANNEL_NAME, ast_frfree, ast_get_cc_max_monitors(), ast_log(), ast_queue_frame(), and LOG_NOTICE.
Referenced by analog_call(), sig_pri_cc_generic_check(), and sip_handle_cc().
03769 { 03770 struct ast_frame frame = {0,}; 03771 char device_name[AST_CHANNEL_NAME]; 03772 int retval; 03773 struct ast_cc_config_params *cc_params; 03774 03775 cc_params = ast_channel_get_cc_config_params(chan); 03776 if (!cc_params) { 03777 return -1; 03778 } 03779 ast_channel_get_device_name(chan, device_name, sizeof(device_name)); 03780 if (ast_cc_monitor_count(device_name, monitor_type) >= ast_get_cc_max_monitors(cc_params)) { 03781 ast_log(LOG_NOTICE, "Not queuing a CC frame for device %s since it already has its maximum monitors allocated\n", device_name); 03782 return -1; 03783 } 03784 03785 if (ast_cc_build_frame(chan, cc_params, monitor_type, device_name, dialstring, service, private_data, &frame)) { 03786 /* Frame building failed. We can't use this. */ 03787 return -1; 03788 } 03789 retval = ast_queue_frame(chan, &frame); 03790 ast_frfree(&frame); 03791 return retval; 03792 }
void ast_set_cc_agent_dialstring | ( | struct ast_cc_config_params * | config, | |
const char *const | value | |||
) |
Set the cc_agent_dialstring.
config | The configuration to set the cc_agent_dialstring on | |
value | The new cc_agent_dialstring we want to change to |
void |
Definition at line 812 of file ccss.c.
References ast_copy_string(), ast_strlen_zero(), and config.
Referenced by ast_cc_set_param().
00813 { 00814 if (ast_strlen_zero(value)) { 00815 config->cc_agent_dialstring[0] = '\0'; 00816 } else { 00817 ast_copy_string(config->cc_agent_dialstring, value, sizeof(config->cc_agent_dialstring)); 00818 } 00819 }
int ast_set_cc_agent_policy | ( | struct ast_cc_config_params * | config, | |
enum ast_cc_agent_policies | value | |||
) |
Set the cc_agent_policy.
config | The configuration to set the cc_agent_policy on | |
value | The new cc_agent_policy we want to change to |
0 | Success | |
-1 | Failure (likely due to bad input) |
Definition at line 718 of file ccss.c.
References AST_CC_AGENT_GENERIC, and config.
Referenced by ast_cc_set_param(), and build_peer().
00719 { 00720 /* Screw C and its weak type checking for making me have to do this 00721 * validation at runtime. 00722 */ 00723 if (value < AST_CC_AGENT_NEVER || value > AST_CC_AGENT_GENERIC) { 00724 return -1; 00725 } 00726 config->cc_agent_policy = value; 00727 return 0; 00728 }
void ast_set_cc_callback_macro | ( | struct ast_cc_config_params * | config, | |
const char *const | value | |||
) |
Set the callback_macro name.
config | The configuration to set the callback_macro on | |
value | The new callback macro we want to change to |
void |
Definition at line 846 of file ccss.c.
References ast_copy_string(), ast_strlen_zero(), and config.
Referenced by ast_cc_set_param().
00847 { 00848 if (ast_strlen_zero(value)) { 00849 config->cc_callback_macro[0] = '\0'; 00850 } else { 00851 ast_copy_string(config->cc_callback_macro, value, sizeof(config->cc_callback_macro)); 00852 } 00853 }
int ast_set_cc_interfaces_chanvar | ( | struct ast_channel * | chan, | |
const char *const | extension | |||
) |
Set the CC_INTERFACES channel variable for a channel using an extension as a starting point.
chan | The channel to set the CC_INTERFACES variable on | |
extension | The name of the extension for which we're setting the variable. This should be in the form of "exten@context" |
Definition at line 3283 of file ccss.c.
References ast_channel_datastore_find(), ast_channel_lock, ast_channel_unlock, ast_free, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_log_dynamic_level, ast_str_buffer(), ast_str_create(), build_cc_interfaces_chanvar(), cc_recall_ds_data::core_id, ast_datastore::data, ast_cc_interface::device_name, ast_cc_monitor::interface, cc_recall_ds_data::interface_tree, cc_monitor_backend::next, pbx_builtin_setvar_helper(), recall_ds_info, and str.
Referenced by local_call().
03284 { 03285 struct ast_datastore *recall_datastore; 03286 struct cc_monitor_tree *interface_tree; 03287 struct ast_cc_monitor *monitor_iter; 03288 struct cc_recall_ds_data *recall_data; 03289 struct ast_str *str = ast_str_create(64); 03290 int core_id; 03291 03292 if (!str) { 03293 return -1; 03294 } 03295 03296 ast_channel_lock(chan); 03297 if (!(recall_datastore = ast_channel_datastore_find(chan, &recall_ds_info, NULL))) { 03298 ast_channel_unlock(chan); 03299 ast_free(str); 03300 return -1; 03301 } 03302 recall_data = recall_datastore->data; 03303 interface_tree = recall_data->interface_tree; 03304 core_id = recall_data->core_id; 03305 ast_channel_unlock(chan); 03306 03307 AST_LIST_LOCK(interface_tree); 03308 AST_LIST_TRAVERSE(interface_tree, monitor_iter, next) { 03309 if (!strcmp(monitor_iter->interface->device_name, extension)) { 03310 break; 03311 } 03312 } 03313 03314 if (!monitor_iter) { 03315 /* We couldn't find this extension. This may be because 03316 * we have been directed into an unexpected extension because 03317 * the admin has changed a CC_INTERFACES variable at some point. 03318 */ 03319 AST_LIST_UNLOCK(interface_tree); 03320 ast_free(str); 03321 return -1; 03322 } 03323 03324 build_cc_interfaces_chanvar(monitor_iter, str); 03325 AST_LIST_UNLOCK(interface_tree); 03326 03327 pbx_builtin_setvar_helper(chan, "CC_INTERFACES", ast_str_buffer(str)); 03328 ast_log_dynamic_level(cc_logger_level, "Core %d: CC_INTERFACES set to %s\n", 03329 core_id, ast_str_buffer(str)); 03330 03331 ast_free(str); 03332 return 0; 03333 }
void ast_set_cc_max_agents | ( | struct ast_cc_config_params * | config, | |
unsigned int | value | |||
) |
Set the cc_max_agents.
config | The configuration to set the cc_max_agents on | |
value | The new cc_max_agents we want to change to |
void |
Definition at line 826 of file ccss.c.
References config.
Referenced by ast_cc_set_param().
void ast_set_cc_max_monitors | ( | struct ast_cc_config_params * | config, | |
unsigned int | value | |||
) |
Set the cc_max_monitors.
config | The configuration to set the cc_max_monitors on | |
value | The new cc_max_monitors we want to change to |
void |
Definition at line 836 of file ccss.c.
References config.
Referenced by ast_cc_set_param().
int ast_set_cc_monitor_policy | ( | struct ast_cc_config_params * | config, | |
enum ast_cc_monitor_policies | value | |||
) |
Set the cc_monitor_policy.
config | The configuration to set the cc_monitor_policy on | |
value | The new cc_monitor_policy we want to change to |
0 | Success | |
-1 | Failure (likely due to bad input) |
Definition at line 735 of file ccss.c.
References AST_CC_MONITOR_ALWAYS, and config.
Referenced by ast_cc_set_param().
00736 { 00737 /* Screw C and its weak type checking for making me have to do this 00738 * validation at runtime. 00739 */ 00740 if (value < AST_CC_MONITOR_NEVER || value > AST_CC_MONITOR_ALWAYS) { 00741 return -1; 00742 } 00743 config->cc_monitor_policy = value; 00744 return 0; 00745 }
void ast_set_cc_offer_timer | ( | struct ast_cc_config_params * | config, | |
unsigned int | value | |||
) |
Set the cc_offer_timer.
config | The configuration to set the cc_offer_timer on | |
value | The new cc_offer_timer we want to change to |
void |
Definition at line 752 of file ccss.c.
References ast_log(), config, and LOG_WARNING.
Referenced by ast_cc_set_param().
00753 { 00754 /* 0 is an unreasonable value for any timer. Stick with the default */ 00755 if (value == 0) { 00756 ast_log(LOG_WARNING, "0 is an invalid value for cc_offer_timer. Retaining value as %u\n", config->cc_offer_timer); 00757 return; 00758 } 00759 config->cc_offer_timer = value; 00760 }
void ast_set_cc_recall_timer | ( | struct ast_cc_config_params * | config, | |
unsigned int | value | |||
) |
Set the cc_recall_timer.
config | The configuration to set the cc_recall_timer on | |
value | The new cc_recall_timer we want to change to |
void |
Definition at line 782 of file ccss.c.
References ast_log(), config, and LOG_WARNING.
Referenced by ast_cc_set_param().
00783 { 00784 /* 0 is an unreasonable value for any timer. Stick with the default */ 00785 if (value == 0) { 00786 ast_log(LOG_WARNING, "0 is an invalid value for ccnr_available_timer. Retaining value as %u\n", config->cc_recall_timer); 00787 return; 00788 } 00789 config->cc_recall_timer = value; 00790 }
void ast_set_ccbs_available_timer | ( | struct ast_cc_config_params * | config, | |
unsigned int | value | |||
) |
Set the ccbs_available_timer.
config | The configuration to set the ccbs_available_timer on | |
value | The new ccbs_available_timer we want to change to |
void |
Definition at line 797 of file ccss.c.
References ast_log(), config, and LOG_WARNING.
Referenced by ast_cc_set_param().
00798 { 00799 /* 0 is an unreasonable value for any timer. Stick with the default */ 00800 if (value == 0) { 00801 ast_log(LOG_WARNING, "0 is an invalid value for ccbs_available_timer. Retaining value as %u\n", config->ccbs_available_timer); 00802 return; 00803 } 00804 config->ccbs_available_timer = value; 00805 }
void ast_set_ccnr_available_timer | ( | struct ast_cc_config_params * | config, | |
unsigned int | value | |||
) |
Set the ccnr_available_timer.
config | The configuration to set the ccnr_available_timer on | |
value | The new ccnr_available_timer we want to change to |
void |
Definition at line 767 of file ccss.c.
References ast_log(), config, and LOG_WARNING.
Referenced by ast_cc_set_param().
00768 { 00769 /* 0 is an unreasonable value for any timer. Stick with the default */ 00770 if (value == 0) { 00771 ast_log(LOG_WARNING, "0 is an invalid value for ccnr_available_timer. Retaining value as %u\n", config->ccnr_available_timer); 00772 return; 00773 } 00774 config->ccnr_available_timer = value; 00775 }
int ast_setup_cc_recall_datastore | ( | struct ast_channel * | chan, | |
const int | core_id | |||
) |
Set up a CC recall datastore on a channel.
This function must be called by the implementer once it has been detected that an inbound call is a cc_recall. After allocating the channel, call this function, followed by ast_cc_set_cc_interfaces_chanvar. While it would be nice to be able to have the core do this automatically, it just cannot be done given the current architecture.
Definition at line 3036 of file ccss.c.
References ast_calloc, ast_channel_datastore_add(), ast_channel_lock, ast_channel_unlock, ast_datastore_alloc, ast_datastore_free(), ast_free, cc_ref(), cc_unref(), ast_datastore::data, DATASTORE_INHERIT_FOREVER, find_cc_core_instance(), ast_datastore::inheritance, cc_core_instance::monitors, and recall_ds_info.
Referenced by generic_recall(), handle_request_invite(), and sig_pri_handle_subcmds().
03037 { 03038 struct ast_datastore *recall_datastore = ast_datastore_alloc(&recall_ds_info, NULL); 03039 struct cc_recall_ds_data *recall_data; 03040 struct cc_core_instance *core_instance; 03041 03042 if (!recall_datastore) { 03043 return -1; 03044 } 03045 03046 if (!(recall_data = ast_calloc(1, sizeof(*recall_data)))) { 03047 ast_datastore_free(recall_datastore); 03048 return -1; 03049 } 03050 03051 if (!(core_instance = find_cc_core_instance(core_id))) { 03052 ast_free(recall_data); 03053 ast_datastore_free(recall_datastore); 03054 return -1; 03055 } 03056 03057 recall_data->interface_tree = cc_ref(core_instance->monitors, 03058 "Bump refcount for monitor tree for recall datastore"); 03059 recall_data->core_id = core_id; 03060 recall_datastore->data = recall_data; 03061 recall_datastore->inheritance = DATASTORE_INHERIT_FOREVER; 03062 ast_channel_lock(chan); 03063 ast_channel_datastore_add(chan, recall_datastore); 03064 ast_channel_unlock(chan); 03065 cc_unref(core_instance, "Recall datastore set up. No need for core_instance ref"); 03066 return 0; 03067 }