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loader: Create ast_module_running_ref.

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This function returns NULL if the module in question is not running.  I
did not change ast_module_ref as most callers do not check the result
and they always call ast_module_unref.

Make use of this function when running registered items from:
* app_stack API's
* bridge technologies
* CLI commands
* File formats
* Manager Actions
* RTP engines
* Sorcery Wizards
* Timing Interfaces
* Translators
* AGI Commands
* Fax Technologies

ASTERISK-20346 #close

Change-Id: Ia16fd28e188b2fc0b9d18b8a5d9cacc31df73fcc
This commit is contained in:
Corey Farrell
2017-12-29 19:24:02 -05:00
parent 7f4facc5e4
commit 55f1d69c43
13 changed files with 161 additions and 80 deletions
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12
main/file.c
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@@ -425,11 +425,17 @@ static void filestream_destructor(void *arg)
static struct ast_filestream *get_filestream(struct ast_format_def *fmt, FILE *bfile)
{
struct ast_filestream *s;
int l = sizeof(*s) + fmt->buf_size + fmt->desc_size; /* total allocation size */
if ( (s = ao2_alloc(l, filestream_destructor)) == NULL)
if (!ast_module_running_ref(fmt->module)) {
return NULL;
ast_module_ref(fmt->module);
}
s = ao2_alloc(l, filestream_destructor);
if (!s) {
ast_module_unref(fmt->module);
return NULL;
}
s->fmt = fmt;
s->f = bfile;