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res_pjsip: make it unloadable

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The res_pjsip module was previously unloadable. With this patch it can now
be unloaded.

This patch is based off the original patch on the issue (listed below) by Corey
Farrell with a few modifications. Namely, removed a few changes not required to
make the module unloadable and also fixed a bug that would cause asterisk to
crash on unloading.

This patch is the first step (should hopefully be followed by another/others at
some point) in allowing res_pjsip and the modules that depend on it to be
unloadable. At this time, res_pjsip and some of the modules that depend on
res_pjsip cannot be unloaded without causing problems of some sort.

The goal of this patch is to get res_pjsip and only res_pjsip to be able to
unload successfully and/or shutdown without incident (crashes, leaks, etc...).
Other dependent modules may still cause problems on unload.

Basically made sure, with the patch applied, that res_pjsip (with no other
dependent modules loaded) could be succesfully unloaded and Asterisk could
shutdown without any leaks or crashes that pertained directly to res_pjsip.

ASTERISK-24485 #close
Reported by: Corey Farrell
Review: https://reviewboard.asterisk.org/r/4311/
patches:
  pjsip_unload-broken-r1.patch submitted by Corey Farrell (license 5909)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@430628 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin Harwell
2015-01-14 23:14:47 +00:00
parent e370c9e68e
commit 77a036bf3f
11 changed files with 151 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
res/res_pjsip/pjsip_global_headers.c
View File

@@ -23,6 +23,7 @@
#include "asterisk/res_pjsip.h"
#include "asterisk/linkedlists.h"
#include "include/res_pjsip_private.h"
static pj_status_t add_request_headers(pjsip_tx_data *tdata);
static pj_status_t add_response_headers(pjsip_tx_data *tdata);
@@ -151,7 +152,7 @@ void ast_sip_initialize_global_headers(void)
AST_RWLIST_HEAD_INIT(&request_headers);
AST_RWLIST_HEAD_INIT(&response_headers);
ast_sip_register_service(&global_header_mod);
internal_sip_register_service(&global_header_mod);
}
static void destroy_headers(struct header_list *headers)
@@ -168,4 +169,6 @@ void ast_sip_destroy_global_headers(void)
{
destroy_headers(&request_headers);
destroy_headers(&response_headers);
internal_sip_unregister_service(&global_header_mod);
}