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00026 #include "asterisk.h"
00027
00028 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 190423 $")
00029
00030 #include "asterisk/autochan.h"
00031 #include "asterisk/utils.h"
00032 #include "asterisk/linkedlists.h"
00033 #include "asterisk/options.h"
00034 #include "asterisk/channel.h"
00035
00036 struct ast_autochan *ast_autochan_setup(struct ast_channel *chan)
00037 {
00038 struct ast_autochan *autochan;
00039
00040 if (!chan) {
00041 return NULL;
00042 }
00043
00044 if (!(autochan = ast_calloc(1, sizeof(*autochan)))) {
00045 return NULL;
00046 }
00047
00048 autochan->chan = ast_channel_ref(chan);
00049
00050 ast_channel_lock(autochan->chan);
00051 AST_LIST_INSERT_TAIL(&autochan->chan->autochans, autochan, list);
00052 ast_channel_unlock(autochan->chan);
00053
00054 ast_debug(1, "Created autochan %p to hold channel %s (%p)\n", autochan, chan->name, chan);
00055
00056 return autochan;
00057 }
00058
00059 void ast_autochan_destroy(struct ast_autochan *autochan)
00060 {
00061 struct ast_autochan *autochan_iter;
00062
00063 ast_channel_lock(autochan->chan);
00064 AST_LIST_TRAVERSE_SAFE_BEGIN(&autochan->chan->autochans, autochan_iter, list) {
00065 if (autochan_iter == autochan) {
00066 AST_LIST_REMOVE_CURRENT(list);
00067 ast_debug(1, "Removed autochan %p from the list, about to free it\n", autochan);
00068 break;
00069 }
00070 }
00071 AST_LIST_TRAVERSE_SAFE_END;
00072 ast_channel_unlock(autochan->chan);
00073
00074 autochan->chan = ast_channel_unref(autochan->chan);
00075
00076 ast_free(autochan);
00077 }
00078
00079 void ast_autochan_new_channel(struct ast_channel *old_chan, struct ast_channel *new_chan)
00080 {
00081 struct ast_autochan *autochan;
00082
00083 AST_LIST_APPEND_LIST(&new_chan->autochans, &old_chan->autochans, list);
00084
00085 AST_LIST_TRAVERSE(&new_chan->autochans, autochan, list) {
00086 if (autochan->chan == old_chan) {
00087 autochan->chan = ast_channel_unref(old_chan);
00088 autochan->chan = ast_channel_ref(new_chan);
00089
00090 ast_debug(1, "Autochan %p used to hold channel %s (%p) but now holds channel %s (%p)\n",
00091 autochan, old_chan->name, old_chan, new_chan->name, new_chan);
00092 }
00093 }
00094 }