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Add MASTER_CHANNEL() dialplan function, as well as a useful usage.

Browse Source 
(closes issue #13140)
 Reported by: cpina
 Patches: 
       20090807__issue13140.diff.txt uploaded by tilghman (license 14)
 Tested by: lmadsen
 Change-type: feature


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@215301 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2009-09-01 23:41:06 +00:00
parent 4af7d0c949
commit 2cfddf8cb6
3 changed files with 61 additions and 5 deletions
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49
funcs/func_channel.c
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@@ -55,6 +55,15 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
will be space-delimited.</para>
</description>
</function>
<function name="MASTER_CHANNEL" language="en_US">
<synopsis>
Gets or sets variables on the master channel
</synopsis>
<description>
<para>Allows access to the channel which created the current channel, if any. If the channel is already
a master channel, then accesses local channel variables.</para>
</description>
</function>
<function name="CHANNEL" language="en_US">
<synopsis>
Gets/sets various pieces of information about the channel.
@@ -496,23 +505,55 @@ static struct ast_custom_function channels_function = {
.read = func_channels_read,
};
static int func_mchan_read(struct ast_channel *chan, const char *function,
char *data, struct ast_str **buf, ssize_t len)
{
struct ast_channel *mchan = ast_channel_get_by_name(chan->linkedid);
char *template = alloca(4 + strlen(data));
sprintf(template, "${%s}", data); /* SAFE */
ast_str_substitute_variables(buf, len, mchan ? mchan : chan, template);
if (mchan) {
ast_channel_unref(mchan);
}
return 0;
}
static int func_mchan_write(struct ast_channel *chan, const char *function,
char *data, const char *value)
{
struct ast_channel *mchan = ast_channel_get_by_name(chan->linkedid);
pbx_builtin_setvar_helper(mchan ? mchan : chan, data, value);
if (mchan) {
ast_channel_unref(mchan);
}
return 0;
}
static struct ast_custom_function mchan_function = {
.name = "MASTER_CHANNEL",
.read2 = func_mchan_read,
.write = func_mchan_write,
};
static int unload_module(void)
{
int res = 0;
res |= ast_custom_function_unregister(&channel_function);
res |= ast_custom_function_unregister(&channels_function);
res |= ast_custom_function_unregister(&mchan_function);
return res;
}
static int load_module(void)
{
int res = 0;
res |= ast_custom_function_register(&channel_function);
res |= ast_custom_function_register(&channels_function);
res |= ast_custom_function_register(&mchan_function);
return res;
}