X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=util%2Ftstflock.c;h=4abcdbf9d2ccb84a5ac8cd16a21b62f4b5484d3d;hb=11edef8271df7f3598f94373720aea3a5b6b3ad5;hp=a9ca1d72277b30f351ae2ba5678ddef2e46fc038;hpb=efbacfd3929039959d79f4a2ae8a9dfbf9f548ed;p=idzebra-moved-to-github.git

diff --git a/util/tstflock.c b/util/tstflock.c
index a9ca1d7..4abcdbf 100644
--- a/util/tstflock.c
+++ b/util/tstflock.c
@@ -2,13 +2,31 @@
  * Copyright (C) 1995-2006, Index Data ApS
  * See the file LICENSE for details.
  *
- * $Id: tstflock.c,v 1.10 2006-06-30 13:02:20 adam Exp $
+ * $Id: tstflock.c,v 1.13 2006-07-03 21:19:13 adam Exp $
  */
 
 #include <assert.h>
 #include <stdlib.h>
 #include <yaz/test.h>
 #include <yaz/log.h>
+#include <sys/time.h>
+#include <time.h>
+
+#if HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#if HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
+
+#include <fcntl.h>
+
 #if YAZ_POSIX_THREADS
 #include <pthread.h>
 #endif
@@ -18,9 +36,6 @@
 #endif
 
 #include <idzebra/flock.h>
-#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif
 #include <string.h>
 
 static char seq[1000];
@@ -28,12 +43,34 @@ static char *seqp = 0;
 
 #define NUM_THREADS 100
 
+#if YAZ_POSIX_THREADS
+pthread_cond_t sleep_cond = PTHREAD_COND_INITIALIZER;
+pthread_mutex_t sleep_mutex = PTHREAD_MUTEX_INITIALIZER;
+#endif
+
+int test_fd = 0;
+
 static void small_sleep()
 {
 #ifdef WIN32
     Sleep(50);
 #else
-    sleep(1);
+#if YAZ_POSIX_THREADS
+    struct timespec abstime;
+    struct timeval now;
+
+    gettimeofday(&now, 0);
+    abstime.tv_sec = now.tv_sec;
+    abstime.tv_nsec = 1000000 + now.tv_usec * 1000;
+    if (abstime.tv_nsec > 1000000000) /* 1s = 1e9 ns */
+    {
+        abstime.tv_nsec -= 1000000000;
+        abstime.tv_sec++;
+    }
+    pthread_mutex_lock(&sleep_mutex);
+    pthread_cond_timedwait(&sleep_cond, &sleep_mutex, &abstime);
+    pthread_mutex_unlock(&sleep_mutex);
+#endif
 #endif
 }
 
@@ -45,30 +82,32 @@ void *run_func(void *arg)
     ZebraLockHandle lh = zebra_lock_create(0, "my.LCK");
     for (i = 0; i<2; i++)
     {
-        int write_lock;
+        int write_lock = use_write_lock;
 
-        if (use_write_lock == 2)
+        if (use_write_lock == 2) /* random lock */
             write_lock = (rand() & 3) == 3 ? 1 : 0;
-        else
-            write_lock = use_write_lock;
             
         if (write_lock)
         {
             zebra_lock_w(lh);
-            
+
+            write(test_fd, "L", 1);
             *seqp++ = 'L';
             small_sleep();
-            *seqp++ = 'U';
-            
+            *seqp++ = 'U';  
+            write(test_fd, "U", 1);
+          
             zebra_unlock(lh);
         }
         else
         {
             zebra_lock_r(lh);
             
+            write(test_fd, "l", 1);
             *seqp++ = 'l';
             small_sleep();
             *seqp++ = 'u';
+            write(test_fd, "u", 1);
             
             zebra_unlock(lh);
         }
@@ -130,14 +169,13 @@ static void tst_thread(int num, int write_flag)
     for (i = 0; i < num; i++)
         YAZ_CHECK(id[i] == 123);
     *seqp++ = '\0';
+    yaz_log(YLOG_LOG, "tst_thread(%d,%d) returns seq=%s", 
+            num, write_flag, seq);
 }
 
 static void tst()
 {
     tst_thread(4, 1); /* write locks */
-#if 0
-    printf("seq=%s\n", seq);
-#endif
     if (1)
     {
         int i = 0;
@@ -151,24 +189,57 @@ static void tst()
 
 #if 0
     tst_thread(6, 0);  /* read locks */
-    printf("seq=%s\n", seq);
 #endif
-#if 0
+#if 1
     tst_thread(20, 2); /* random locks */
-    printf("seq=%s\n", seq);
 #endif
 }
 
+void fork_tst()
+{
+#if HAVE_SYS_WAIT_H
+    pid_t pid[2];
+    int i;
+
+    for (i = 0; i<2; i++)
+    {
+        pid[i] = fork();
+        if (!pid[i])
+        {
+            tst();
+            exit(0);
+        }
+    }
+    for (i = 0; i<2; i++)
+    {
+        int status;
+        waitpid(pid[i], &status, 0);
+        YAZ_CHECK(status == 0);
+    }
+#else
+    tst();
+#endif
+}
+
+
 int main(int argc, char **argv)
 {
+    char logname[220];
     YAZ_CHECK_INIT(argc, argv);
 
+    sprintf(logname, "%.200s.log", argv[0]);
+    yaz_log_init_file(logname);
+
     yaz_log_time_format("%s:%!");
 
     zebra_flock_init();
 
-    tst();
-
+    test_fd = open("tstflock.out", (O_BINARY|O_CREAT|O_RDWR), 0666);
+    YAZ_CHECK(test_fd != -1);
+    if (test_fd != -1)
+    {
+        fork_tst();
+    }
     YAZ_CHECK_TERM;
 }