X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=util%2Ftstflock.c;h=28d9548335588295946726b962037e9140333932;hb=7415d28c149c1bab51fe93aeaccdd14085b69bd9;hp=3725b8f01b952d8cab79ba45456a2ff5a238ef12;hpb=b374ab328be4535cff9412e265a3fb87c53c1272;p=idzebra-moved-to-github.git

diff --git a/util/tstflock.c b/util/tstflock.c
index 3725b8f..28d9548 100644
--- a/util/tstflock.c
+++ b/util/tstflock.c
@@ -2,11 +2,29 @@
  * Copyright (C) 1995-2006, Index Data ApS
  * See the file LICENSE for details.
  *
- * $Id: tstflock.c,v 1.9 2006-06-30 11:10:17 adam Exp $
+ * $Id: tstflock.c,v 1.12 2006-06-30 15:10:29 adam Exp $
  */
 
 #include <assert.h>
+#include <stdlib.h>
 #include <yaz/test.h>
+#include <yaz/log.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
@@ -16,15 +34,14 @@
 #endif
 
 #include <idzebra/flock.h>
-#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif
 #include <string.h>
 
-static char seq[40];
-static char *seqp = seq;
+static char seq[1000];
+static char *seqp = 0;
+
+#define NUM_THREADS 100
 
-#define NUM_THREADS 5
+int test_fd = 0;
 
 static void small_sleep()
 {
@@ -43,23 +60,32 @@ void *run_func(void *arg)
     ZebraLockHandle lh = zebra_lock_create(0, "my.LCK");
     for (i = 0; i<2; i++)
     {
-        if (use_write_lock)
+        int write_lock = use_write_lock;
+
+        if (use_write_lock == 2) /* random lock */
+            write_lock = (rand() & 3) == 3 ? 1 : 0;
+            
+        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);
         }
@@ -75,74 +101,123 @@ DWORD WINAPI ThreadProc(void *p)
     run_func(p);
     return 0;
 }
+#endif
 
-static void tst_win32(int num)
+static void tst_thread(int num, int write_flag)
 {
+#ifdef WIN32
     HANDLE handles[NUM_THREADS];
     DWORD dwThreadId[NUM_THREADS];
-    int i, id[NUM_THREADS];
-    
-    assert (num <= NUM_THREADS);
-    for (i = 0; i<num; i++)
-    {
-        void *pData = &id[i];
-        id[i] = i >= 2 ? 0 : 1; /* first two are writing.. rest is reading */
-        handles[i] = CreateThread(
-            NULL,              /* default security attributes */
-            0,                 /* use default stack size */
-            ThreadProc,        /* thread function */
-            pData,             /* argument to thread function */
-            0,                 /* use default creation flags */
-            &dwThreadId[i]);   /* returns the thread identifier */
-    }
-    /* join */
-    WaitForMultipleObjects(num, handles, TRUE, INFINITE);
-}
 #endif
-
 #if YAZ_POSIX_THREADS
-static void tst_pthread(int num)
-{
     pthread_t child_thread[NUM_THREADS];
+#endif
     int i, id[NUM_THREADS];
 
+    seqp = seq;
     assert (num <= NUM_THREADS);
-    for (i = 0; i<num; i++)
+    for (i = 0; i < num; i++)
     {
-        id[i] = i >= 2 ? 0 : 1; /* first two are writing.. rest is reading */
+        id[i] = write_flag;
+#if YAZ_POSIX_THREADS
         pthread_create(&child_thread[i], 0 /* attr */, run_func, &id[i]);
-    }
+#endif
+#ifdef WIN32
+        if (1)
+        {
+            void *pData = &id[i];
+            handles[i] = CreateThread(
+                NULL,              /* default security attributes */
+                0,                 /* use default stack size */
+                ThreadProc,        /* thread function */
+                pData,             /* argument to thread function */
+                0,                 /* use default creation flags */
+                &dwThreadId[i]);   /* returns the thread identifier */
+        }
 
+#endif
+    }
+#if YAZ_POSIX_THREADS
     for (i = 0; i<num; i++)
         pthread_join(child_thread[i], 0);
-
-    for (i = 0; i<num; i++)
+#endif
+#ifdef WIN32
+    WaitForMultipleObjects(num, handles, TRUE, INFINITE);
+#endif
+    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 (1)
+    {
+        int i = 0;
+        while (seq[i])
+        {
+            YAZ_CHECK_EQ(seq[i], 'L');
+            YAZ_CHECK_EQ(seq[i+1], 'U');
+            i = i + 2;
+        }
+    }
+
+#if 0
+    tst_thread(6, 0);  /* read locks */
+#endif
+#if 1
+    tst_thread(20, 2); /* random locks */
 #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();
-#ifdef WIN32
-    tst_win32(2);
-#endif
-#if YAZ_POSIX_THREADS
-    tst_pthread(2);
-#endif
 
-    *seqp++ = '\0';
-#if 0
-    printf("seq=%s\n", seq);
-#endif
-#if 1
-    /* does not pass.. for bug 529 */
-    YAZ_CHECK(strcmp(seq, "LULULULU") == 0); /* for tst_pthread when num=2 */
-#endif
+    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;
 }