Fix for deadlock timer timeout.

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 74adf58a4de04f8e9522978effe5ddd096df6193..095ac87a06f9f8f3b90fa1113e77351031762b64 100644 (file)
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.44 1998/12/18 19:45:37 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.45 1998/12/29 18:29:18 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -46,7 +46,7 @@
  *             This is so that we can support more backends. (system-wide semaphore
  *             sets run out pretty fast.)                                -ay 4/95
  *
- * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.44 1998/12/18 19:45:37 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.45 1998/12/29 18:29:18 momjian Exp $
  */
 #include <sys/time.h>
 #include <unistd.h>
@@ -449,7 +449,6 @@ ProcSleep(PROC_QUEUE *waitQueue,/* lock->waitProcs */
        int                     i;
        bool            deadlock_checked = false;
        PROC       *proc;
-       struct timeval timeval;
 
        /*
         * If the first entries in the waitQueue have a greater priority than
@@ -513,29 +512,24 @@ ProcSleep(PROC_QUEUE *waitQueue,/* lock->waitProcs */
        SpinRelease(spinlock);
 
        /* --------------
-        * We set this so we can wake up periodically and check for a deadlock.
+        * We set this so we can wake up after one second to check for a deadlock.
         * If a deadlock is detected, the handler releases the processes
         * semaphore and aborts the current transaction.
-        *
-        * Need to zero out struct to set the interval and the micro seconds fields
-        * to 0.
         * --------------
         */
-       MemSet(&timeval, 0, sizeof(struct timeval));
-       timeval.tv_sec = \
-               (DeadlockCheckTimer ? DeadlockCheckTimer : DEADLOCK_CHECK_TIMER);
 
        do
        {
-               int expire;
+               int expired;
                
                MyProc->errType = NO_ERROR;             /* reset flag after deadlock check */
 
-               if ((expire = select(0, NULL, NULL, NULL,
-                       (deadlock_checked == false) ? &timeval : NULL)) == -1)
-                       elog(FATAL, "ProcSleep: Unable to set timer for process wakeup");
+               if (deadlock_checked == false)
+                       expired = sleep(DeadlockCheckTimer ? DeadlockCheckTimer : DEADLOCK_CHECK_TIMER);
+               else
+                       pause();
 
-               if (expire == 0 /* timeout reached */ && deadlock_checked == false)
+               if (expired == 0 && deadlock_checked == false)
                {
                        HandleDeadLock();
                        deadlock_checked = true;