database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-21 16:02:15 +03:00
Code Activity

Rework libpq threaded SIGPIPE handling to avoid interference with

Browse Source 
calling applications.  This is done by blocking sigpipe in the libpq
thread and using sigpending/sigwait to possibily discard any sigpipe we
generated.
This commit is contained in:
Bruce Momjian
2004-12-02 15:32:54 +00:00
parent e02ef267fc
commit 8408f65252
9 changed files with 113 additions and 105 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/interfaces/libpq/fe-print.c
View File

@ -10,7 +10,7 @@
* didn't really belong there.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/interfaces/libpq/fe-print.c,v 1.55 2004/11/09 15:57:57 petere Exp $
* $PostgreSQL: pgsql/src/interfaces/libpq/fe-print.c,v 1.56 2004/12/02 15:32:54 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -91,7 +91,11 @@ PQprint(FILE *fout,
int total_line_length = 0;
int usePipe = 0;
char *pagerenv;
#ifdef ENABLE_THREAD_SAFETY
sigset_t osigset;
bool sigpipe_masked = false;
bool sigpipe_pending;
#endif
#if !defined(ENABLE_THREAD_SAFETY) && !defined(WIN32)
pqsigfunc oldsigpipehandler = NULL;
#endif
@ -189,7 +193,8 @@ PQprint(FILE *fout,
{
usePipe = 1;
#ifdef ENABLE_THREAD_SAFETY
pthread_setspecific(pq_thread_in_send, "t");
pq_block_sigpipe(&osigset, &sigpipe_pending);
sigpipe_masked = true;
#else
#ifndef WIN32
oldsigpipehandler = pqsignal(SIGPIPE, SIG_IGN);
@ -311,7 +316,8 @@ PQprint(FILE *fout,
pclose(fout);
#endif
#ifdef ENABLE_THREAD_SAFETY
pthread_setspecific(pq_thread_in_send, "f");
if (sigpipe_masked)
pq_reset_sigpipe(&osigset, sigpipe_pending);
#else
#ifndef WIN32
pqsignal(SIGPIPE, oldsigpipehandler);