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Prevents possible packet loss from SIGCHLD.

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This commit is contained in:
Bruce Momjian 1996-09-26 03:17:44 +00:00
parent a38b0f6cb9
commit deaaecdf2e
1 changed files with 9 additions and 10 deletions
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19
src/backend/postmaster/postmaster.c
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@ -10,7 +10,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.7 1996/09/16 05:40:31 scrappy Exp $ * $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.8 1996/09/26 03:17:44 momjian Exp $
* *
* NOTES * NOTES
* *
@ -435,16 +435,15 @@ ServerLoop()
fprintf(stderr, "%s: ServerLoop: select failed\n", fprintf(stderr, "%s: ServerLoop: select failed\n",
progname); progname);
return(STATUS_ERROR); return(STATUS_ERROR);
/* [TRH]
* To avoid race conditions, block SIGCHLD signals while we are
* handling the request. (both reaper() and ConnCreate()
* manipulate the BackEnd list, and reaper() calls free() which is
* usually non-reentrant.)
*/
sigprocmask(SIG_BLOCK, &newsigmask, &oldsigmask);
/* sigblock(sigmask(SIGCHLD)); */ /* XXX[TRH] portability */
} }
/* [TRH]
* To avoid race conditions, block SIGCHLD signals while we are
* handling the request. (both reaper() and ConnCreate()
* manipulate the BackEnd list, and reaper() calls free() which is
* usually non-reentrant.)
*/
sigprocmask(SIG_BLOCK, &newsigmask, &oldsigmask);
/* sigblock(sigmask(SIGCHLD)); */ /* XXX[TRH] portability */
if (DebugLvl > 1) { if (DebugLvl > 1) {
fprintf(stderr, "%s: ServerLoop: %d sockets pending\n", fprintf(stderr, "%s: ServerLoop: %d sockets pending\n",
progname, nSelected); progname, nSelected);