Thu Jul 9 13:41:14 2009

Asterisk developer's documentation


chanvars.h File Reference

Channel Variables. More...

#include "asterisk/linkedlists.h"

Go to the source code of this file.

Data Structures

struct  ast_var_t
struct  varshead

Functions

ast_var_tast_var_assign (const char *name, const char *value)
void ast_var_delete (struct ast_var_t *var)
const char * ast_var_full_name (const struct ast_var_t *var)
const char * ast_var_name (const struct ast_var_t *var)
const char * ast_var_value (const struct ast_var_t *var)


Detailed Description

Channel Variables.

Definition in file chanvars.h.


Function Documentation

struct ast_var_t* ast_var_assign ( const char *  name,
const char *  value 
)

Definition at line 34 of file chanvars.c.

References ast_calloc, ast_copy_string(), and var.

Referenced by acf_iaxvar_write(), ast_cdr_copy_vars(), ast_cdr_setvar(), ast_channel_inherit_variables(), ast_iax2_new(), authenticate_reply(), build_profile(), build_user(), clone_variables(), dundi_lookup_local(), frame_set_var(), iax2_dup_variable_datastore(), loopback_subst(), pbx_builtin_pushvar_helper(), pbx_builtin_setvar_helper(), phoneprov_callback(), set_timezone_variables(), shared_write(), and socket_process().

00035 {  
00036    struct ast_var_t *var;
00037    int name_len = strlen(name) + 1;
00038    int value_len = strlen(value) + 1;
00039 
00040    if (!(var = ast_calloc(sizeof(*var) + name_len + value_len, sizeof(char)))) {
00041       return NULL;
00042    }
00043 
00044    ast_copy_string(var->name, name, name_len);
00045    var->value = var->name + name_len;
00046    ast_copy_string(var->value, value, value_len);
00047    
00048    return var;
00049 }  

void ast_var_delete ( struct ast_var_t var  ) 

Definition at line 51 of file chanvars.c.

References ast_free, and var.

Referenced by acf_iaxvar_write(), ast_cdr_free_vars(), ast_cdr_setvar(), ast_channel_free(), delete_user(), dundi_lookup_local(), gosub_release_frame(), loopback_subst(), pbx_builtin_clear_globals(), pbx_builtin_setvar_helper(), profile_destructor(), shared_variable_free(), shared_write(), and unload_module().

00052 {
00053    if (var)
00054       ast_free(var);
00055 }

const char* ast_var_full_name ( const struct ast_var_t var  ) 

Definition at line 72 of file chanvars.c.

References var.

Referenced by ast_channel_inherit_variables().

00073 {
00074    return (var ? var->name : NULL);
00075 }

const char* ast_var_name ( const struct ast_var_t var  ) 

Definition at line 57 of file chanvars.c.

References name, and var.

Referenced by ast_cdr_copy_vars(), ast_cdr_getvar_internal(), ast_cdr_serialize_variables(), ast_cdr_setvar(), ast_channel_inherit_variables(), cdr_merge_vars(), clearvar_prefix(), frame_set_var(), gosub_release_frame(), handle_show_globals(), hashkeys_read(), iax2_call(), iax2_dup_variable_datastore(), local_read(), mgcp_call(), ospauth_exec(), ospfinished_exec(), osplookup_exec(), ospnext_exec(), pbx_builtin_getvar_helper(), pbx_builtin_serialize_variables(), pbx_builtin_setvar_helper(), pbx_retrieve_variable(), shared_read(), shared_write(), sip_call(), and transmit_invite().

00058 {
00059    const char *name;
00060 
00061    if (var == NULL || (name = var->name) == NULL)
00062       return NULL;
00063    /* Return the name without the initial underscores */
00064    if (name[0] == '_') {
00065       name++;
00066       if (name[0] == '_')
00067          name++;
00068    }
00069    return name;
00070 }

const char* ast_var_value ( const struct ast_var_t var  ) 

Definition at line 77 of file chanvars.c.

References var.

Referenced by ast_cdr_copy_vars(), ast_cdr_getvar_internal(), ast_cdr_serialize_variables(), ast_channel_inherit_variables(), cdr_merge_vars(), handle_show_globals(), iax2_call(), iax2_dup_variable_datastore(), mgcp_call(), ospauth_exec(), ospfinished_exec(), osplookup_exec(), ospnext_exec(), pbx_builtin_getvar_helper(), pbx_builtin_serialize_variables(), pbx_retrieve_variable(), shared_read(), sip_call(), and transmit_invite().

00078 {
00079    return (var ? var->value : NULL);
00080 }


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