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Cope with case that SEM_FAILED is not defined (assume failure code is -1)

This commit is contained in:
Tom Lane 2002-05-05 16:01:50 +00:00
parent 8df5625966
commit 2010a43fcb
1 changed files with 8 additions and 2 deletions
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10
src/backend/port/posix_sema.c
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@ -11,7 +11,7 @@
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/port/posix_sema.c,v 1.2 2002/05/05 01:03:26 tgl Exp $ * $Header: /cvsroot/pgsql/src/backend/port/posix_sema.c,v 1.3 2002/05/05 16:01:50 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -72,8 +72,14 @@ PosixSemaphoreCreate(void)
mySem = sem_open(semname, O_CREAT | O_EXCL, mySem = sem_open(semname, O_CREAT | O_EXCL,
(mode_t) IPCProtection, (unsigned) 1); (mode_t) IPCProtection, (unsigned) 1);
#ifdef SEM_FAILED
if (mySem != (sem_t *) SEM_FAILED) if (mySem != (sem_t *) SEM_FAILED)
break; break;
#else
if (mySem != (sem_t *) (-1))
break;
#endif
/* Loop if error indicates a collision */ /* Loop if error indicates a collision */
if (errno == EEXIST || errno == EACCES || errno == EINTR) if (errno == EEXIST || errno == EACCES || errno == EINTR)
@ -82,7 +88,7 @@ PosixSemaphoreCreate(void)
/* /*
* Else complain and abort * Else complain and abort
*/ */
fprintf(stderr, "PosixSemaphoreCreate: sem_open(%s) failed: %s\n", fprintf(stderr, "PosixSemaphoreCreate: sem_open(\"%s\") failed: %s\n",
semname, strerror(errno)); semname, strerror(errno));
proc_exit(1); proc_exit(1);
} }