[sr-dev] git:master: modules_k/pua: Added (start|end|abort)_transaction calls ( when in DB only mode and where supported)
Peter Dunkley
peter.dunkley at crocodile-rcs.com
Wed May 9 15:02:12 CEST 2012
Module: sip-router
Branch: master
Commit: ea2fab792425bf30197d47ae08f806a908fc3681
URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=ea2fab792425bf30197d47ae08f806a908fc3681
Author: Peter Dunkley <peter.dunkley at crocodile-rcs.com>
Committer: Peter Dunkley <peter.dunkley at crocodile-rcs.com>
Date: Wed May 9 13:55:01 2012 +0100
modules_k/pua: Added (start|end|abort)_transaction calls (when in DB only mode and where supported)
- Helps with some multi-server/process race hazards
---
modules_k/pua/pua.h | 6 +++
modules_k/pua/pua_db.c | 4 --
modules_k/pua/pua_db.h | 2 -
modules_k/pua/send_publish.c | 85 +++++++++++++++++++++++++++------------
modules_k/pua/send_subscribe.c | 75 ++++++++++++++++++++++++++++++-----
5 files changed, 130 insertions(+), 42 deletions(-)
diff --git a/modules_k/pua/pua.h b/modules_k/pua/pua.h
index 1246532..34e2135 100644
--- a/modules_k/pua/pua.h
+++ b/modules_k/pua/pua.h
@@ -26,6 +26,7 @@
#define PUBLISH_H
#include "../../str.h"
+#include "../../lib/srdb1/db.h"
#include "hash.h"
#define INSERT_TYPE 1<<1
@@ -54,4 +55,9 @@ int reginfo_increase_version;
extern int update_pua(ua_pres_t* p);
extern int clean_puadb( int update_period, int min_expires );
+extern db_func_t pua_dbf;
+extern db1_con_t *pua_db;
+extern int pua_fetch_rows;
+
+
#endif
diff --git a/modules_k/pua/pua_db.c b/modules_k/pua/pua_db.c
index a92b028..2e6c398 100644
--- a/modules_k/pua/pua_db.c
+++ b/modules_k/pua/pua_db.c
@@ -37,10 +37,6 @@
#include "pua.h"
#include "pua_db.h"
-/* database connection */
-extern db1_con_t *pua_db;
-extern int pua_fetch_rows;
-
/* database colums */
static str str_id_col = str_init( "id" );
static str str_pres_uri_col = str_init("pres_uri");
diff --git a/modules_k/pua/pua_db.h b/modules_k/pua/pua_db.h
index 4348b6d..0cc82a9 100644
--- a/modules_k/pua/pua_db.h
+++ b/modules_k/pua/pua_db.h
@@ -47,8 +47,6 @@
#define PUA_VERSION (1<<16)
#define PUA_EXTRA_HEADERS (1<<17)
-extern db_func_t pua_dbf;
-
void free_results_puadb( db1_res_t *res );
int is_dialog_puadb(ua_pres_t *pres);
int get_record_id_puadb(ua_pres_t *pres, str **rec_id );
diff --git a/modules_k/pua/send_publish.c b/modules_k/pua/send_publish.c
index 600ba8e..cfc759f 100644
--- a/modules_k/pua/send_publish.c
+++ b/modules_k/pua/send_publish.c
@@ -213,6 +213,15 @@ void publ_cback_func(struct cell *t, int type, struct tmcb_params *ps)
dbpres.watcher_uri = &watcher_uri;
dbpres.extra_headers = &extra_headers;
+ if (dbmode == PUA_DB_ONLY && pua_dbf.start_transaction)
+ {
+ if (pua_dbf.start_transaction(pua_db) < 0)
+ {
+ LM_ERR("in start_transaction\n");
+ goto error;
+ }
+ }
+
if(ps->param== NULL|| *ps->param== NULL)
{
LM_ERR("NULL callback parameter\n");
@@ -422,6 +431,16 @@ done:
}
if (res) free_results_puadb(res);
+
+ if (dbmode == PUA_DB_ONLY && pua_dbf.end_transaction)
+ {
+ if (pua_dbf.end_transaction(pua_db) < 0)
+ {
+ LM_ERR("in end_transaction\n");
+ goto error;
+ }
+ }
+
return;
error:
@@ -433,6 +452,13 @@ error:
if(presentity) shm_free(presentity);
if (res) free_results_puadb(res);
+
+ if (dbmode == PUA_DB_ONLY && pua_dbf.abort_transaction)
+ {
+ if (pua_dbf.abort_transaction(pua_db) < 0)
+ LM_ERR("in abort_transaction\n");
+ }
+
return;
}
@@ -454,11 +480,20 @@ int send_publish( publ_info_t* publ )
db1_res_t *res=NULL;
ua_pres_t dbpres;
str pres_uri={0,0}, watcher_uri={0,0}, extra_headers={0,0};
+ int ret = -1;
LM_DBG("pres_uri=%.*s\n", publ->pres_uri->len, publ->pres_uri->s );
- /* get event from list */
+ if (dbmode == PUA_DB_ONLY && pua_dbf.start_transaction)
+ {
+ if (pua_dbf.start_transaction(pua_db) < 0)
+ {
+ LM_ERR("in start_transaction\n");
+ goto error;
+ }
+ }
+ /* get event from list */
ev= get_event(publ->event);
if(ev== NULL)
{
@@ -495,8 +530,8 @@ int send_publish( publ_info_t* publ )
{
if (dbmode!=PUA_DB_ONLY)
lock_release(&HashT->p_records[hash_code].lock);
- free_results_puadb(res);
- return 418;
+ ret = 418;
+ goto error;
}
if(publ->flag & INSERT_TYPE)
@@ -521,14 +556,14 @@ insert:
{
LM_DBG("request for a publish with expires 0 and"
" no record found\n");
- free_results_puadb(res);
- return 0;
+ goto done;
+
}
if(publ->body== NULL)
{
LM_ERR("New PUBLISH and no body found- invalid request\n");
- free_results_puadb(res);
- return ERR_PUBLISH_NO_BODY;
+ ret = ERR_PUBLISH_NO_BODY;
+ goto error;
}
}
else
@@ -541,8 +576,7 @@ insert:
LM_ERR("while allocating memory\n");
if (dbmode!=PUA_DB_ONLY)
lock_release(&HashT->p_records[hash_code].lock);
- free_results_puadb(res);
- return -1;
+ goto error;
}
memcpy(etag.s, presentity->etag.s, presentity->etag.len);
etag.len= presentity->etag.len;
@@ -650,26 +684,18 @@ send_publish:
goto error;
}
- pkg_free(str_hdr);
+done:
+ ret = 0;
- if( body && ret_code)
- {
- if(body->s)
- xmlFree(body->s);
- pkg_free(body);
- }
- if(etag.s)
- pkg_free(etag.s);
- if(tuple_id)
+ if (dbmode == PUA_DB_ONLY && pua_dbf.end_transaction)
{
- if(tuple_id->s)
- pkg_free(tuple_id->s);
- pkg_free(tuple_id);
+ if (pua_dbf.end_transaction(pua_db) < 0)
+ {
+ LM_ERR("in end_transaction\n");
+ goto error;
+ }
}
- free_results_puadb(res);
- return 0;
-
error:
if(etag.s)
pkg_free(etag.s);
@@ -692,7 +718,14 @@ error:
pkg_free(tuple_id);
}
free_results_puadb(res);
- return -1;
+
+ if (dbmode == PUA_DB_ONLY && pua_dbf.abort_transaction)
+ {
+ if (pua_dbf.abort_transaction(pua_db) < 0)
+ LM_ERR("in abort_transaction\n");
+ }
+
+ return ret;
}
ua_pres_t* publish_cbparam(publ_info_t* publ,str* body,str* tuple_id,
diff --git a/modules_k/pua/send_subscribe.c b/modules_k/pua/send_subscribe.c
index 9b89a4a..bc10b28 100644
--- a/modules_k/pua/send_subscribe.c
+++ b/modules_k/pua/send_subscribe.c
@@ -297,6 +297,16 @@ void subs_cback_func(struct cell *t, int cb_type, struct tmcb_params *ps)
LM_ERR("null callback parameter\n");
return;
}
+
+ if (dbmode == PUA_DB_ONLY && pua_dbf.start_transaction)
+ {
+ if (pua_dbf.start_transaction(pua_db) < 0)
+ {
+ LM_ERR("in start_transaction\n");
+ goto error;
+ }
+ }
+
LM_DBG("completed with status %d\n",ps->code) ;
hentity= (ua_pres_t*)(*ps->param);
hash_code= core_hash(hentity->pres_uri,hentity->watcher_uri,
@@ -676,6 +686,16 @@ done:
hentity->flag= flag;
run_pua_callbacks( hentity, msg);
}
+
+ if (dbmode == PUA_DB_ONLY && pua_dbf.end_transaction)
+ {
+ if (pua_dbf.end_transaction(pua_db) < 0)
+ {
+ LM_ERR("in end_transaction\n");
+ goto error;
+ }
+ }
+
goto end;
error:
@@ -685,6 +705,12 @@ error:
shm_free(presentity);
}
+ if (dbmode == PUA_DB_ONLY && pua_dbf.abort_transaction)
+ {
+ if (pua_dbf.abort_transaction(pua_db) < 0)
+ LM_ERR("in abort_transaction\n");
+ }
+
end:
if(hentity)
@@ -889,7 +915,7 @@ int send_subscribe(subs_info_t* subs)
ua_pres_t* presentity= NULL;
str met= {"SUBSCRIBE", 9};
str* str_hdr= NULL;
- int ret= 0;
+ int ret= -1;
unsigned int hash_code=0;
ua_pres_t* hentity= NULL;
int expires;
@@ -926,6 +952,15 @@ int send_subscribe(subs_info_t* subs)
return -1;
}
+ if (dbmode == PUA_DB_ONLY && pua_dbf.start_transaction)
+ {
+ if (pua_dbf.start_transaction(pua_db) < 0)
+ {
+ LM_ERR("in start_transaction\n");
+ goto error;
+ }
+ }
+
/* generation of hash and getting lock moved from here to further down */
if (dbmode==PUA_DB_ONLY)
@@ -980,8 +1015,7 @@ insert:
{
LM_ERR("while building callback"
" param\n");
- ret= -1;
- goto done;
+ goto error;
}
hentity->flag= flag;
@@ -1005,7 +1039,11 @@ insert:
uac_r.dialog = 0;
}
shm_free(hentity);
- goto done;
+
+ /* Although this is an error must not return -1 as the
+ calling function must continue processing. */
+ ret = 0;
+ goto error;
}
/* Now create a temporary hash table entry.
@@ -1022,7 +1060,7 @@ insert:
if(presentity== NULL)
{
LM_ERR("no more share memory\n");
- goto done;
+ goto error;
}
memset(presentity, 0, size);
size= sizeof(ua_pres_t);
@@ -1111,10 +1149,9 @@ insert:
if(td== NULL)
{
LM_ERR("while building tm dlg_t structure");
- ret= -1;
if (dbmode!=PUA_DB_ONLY)
lock_release(&HashT->p_records[hash_code].lock);
- goto done;
+ goto error;
}
hentity= subs_cbparam_indlg(presentity, expires, REQ_OTHER);
@@ -1123,8 +1160,7 @@ insert:
LM_ERR("while building callback param\n");
if (dbmode!=PUA_DB_ONLY)
lock_release(&HashT->p_records[hash_code].lock);
- ret= -1;
- goto done;
+ goto error;
}
if (dbmode!=PUA_DB_ONLY)
lock_release(&HashT->p_records[hash_code].lock);
@@ -1139,14 +1175,33 @@ insert:
shm_free(hentity);
hentity= NULL;
LM_ERR("while sending request with t_request\n");
- goto done;
+ goto error;
}
}
done:
+ if (dbmode == PUA_DB_ONLY && pua_dbf.end_transaction)
+ {
+ if (pua_dbf.end_transaction(pua_db) < 0)
+ {
+ LM_ERR("in end_transaction\n");
+ goto error;
+ }
+ }
+
+ ret = 0;
+
+error:
pua_free_tm_dlg(td);
pkg_free(str_hdr);
free_results_puadb(res);
+
+ if (dbmode == PUA_DB_ONLY && pua_dbf.abort_transaction)
+ {
+ if (pua_dbf.abort_transaction(pua_db) < 0)
+ LM_ERR("in abort_transaction\n");
+ }
+
return ret;
}
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