X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=index%2Flocksrv.c;h=2b17ba0fdff8b81ead9506e6453897bb298b2af4;hb=96810973bbdcdec7019b22fc26aaffddac2cb70d;hp=abb0349c4fc1160e4e95873e8ccbcdf2abb20789;hpb=b9093505b17a074e79137ed64595c8269f77d330;p=idzebra-moved-to-github.git

diff --git a/index/locksrv.c b/index/locksrv.c
index abb0349..2b17ba0 100644
--- a/index/locksrv.c
+++ b/index/locksrv.c
@@ -1,10 +1,16 @@
 /*
- * Copyright (C) 1994-1996, Index Data I/S 
+ * Copyright (C) 1994-1997, Index Data I/S 
  * All rights reserved.
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: locksrv.c,v $
- * Revision 1.8  1997-09-17 12:19:15  adam
+ * Revision 1.10  1997-09-29 09:08:36  adam
+ * Revised locking system to be thread safe for the server.
+ *
+ * Revision 1.9  1997/09/25 14:54:43  adam
+ * WIN32 files lock support.
+ *
+ * Revision 1.8  1997/09/17 12:19:15  adam
  * Zebra version corresponds to YAZ version 1.4.
  * Changed Zebra server so that it doesn't depend on global common_resource.
  *
@@ -36,7 +42,11 @@
  */
 #include <stdio.h>
 #include <assert.h>
+#ifdef WINDOWS
+#include <io.h>
+#else
 #include <unistd.h>
+#endif
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <string.h>
@@ -44,30 +54,49 @@
 
 #include "zserver.h"
 
-static int server_lock_cmt = -1;
-static int server_lock_org = -1;
+int zebra_server_lock_init (ZServerInfo *zi)
+{
+    char path_prefix[1024];
+
+    assert (zi->res);
+    zi->server_lock_cmt = NULL;
+    zi->server_lock_org = NULL;
+
+    zebra_lock_prefix (zi->res, path_prefix);
+    zi->server_path_prefix = xmalloc (strlen(path_prefix)+1);
+    strcpy (zi->server_path_prefix, path_prefix);
 
-int zebraServerLock (Res res, int commitPhase)
+    logf (LOG_DEBUG, "Locking system initialized");
+    return 0;
+}
+
+int zebra_server_lock_destroy (ZServerInfo *zi)
 {
-    char pathPrefix[1024];
-    char path[1024];
-    
-    zebraLockPrefix (res, pathPrefix);
+    xfree (zi->server_path_prefix);
+    zebra_lock_destroy (zi->server_lock_cmt);
+    zebra_lock_destroy (zi->server_lock_org);
+    logf (LOG_DEBUG, "Locking system destroyed");
+    return 0;
+}
 
-    if (server_lock_cmt == -1)
+int zebra_server_lock (ZServerInfo *zi, int commitPhase)
+{
+    if (!zi->server_lock_cmt)
     {
-        sprintf (path, "%s%s", pathPrefix, FNAME_COMMIT_LOCK);
-        if ((server_lock_cmt = open (path, O_BINARY|O_CREAT|O_RDWR, 0666))
-            == -1)
+	char path[1024];
+
+	strcpy (path, zi->server_path_prefix);
+	strcat (path, FNAME_COMMIT_LOCK);
+        if (!(zi->server_lock_cmt = zebra_lock_create (path, 0)))
         {
             logf (LOG_FATAL|LOG_ERRNO, "create %s", path);
             return -1;
         }
-        assert (server_lock_org == -1);
+        assert (zi->server_lock_org == NULL);
 
-        sprintf (path, "%s%s", pathPrefix, FNAME_ORG_LOCK);
-        if ((server_lock_org = open (path, O_BINARY|O_CREAT|O_RDWR, 0666))
-            == -1)
+	strcpy (path, zi->server_path_prefix);
+	strcat (path, FNAME_ORG_LOCK);
+        if (!(zi->server_lock_org = zebra_lock_create (path, 0)))
         {
             logf (LOG_FATAL|LOG_ERRNO, "create %s", path);
             return -1;
@@ -76,49 +105,48 @@ int zebraServerLock (Res res, int commitPhase)
     if (commitPhase)
     {
         logf (LOG_DEBUG, "Server locks org");
-        zebraLock (server_lock_org, 0);
+        zebra_lock (zi->server_lock_org);
     }
     else
     {
         logf (LOG_DEBUG, "Server locks cmt");
-        zebraLock (server_lock_cmt, 0);
+        zebra_lock (zi->server_lock_cmt);
     }
     return 0;
 }
 
-void zebraServerUnlock (int commitPhase)
+void zebra_server_unlock (ZServerInfo *zi, int commitPhase)
 {
-    if (server_lock_org == -1)
+    if (zi->server_lock_org == NULL)
         return;
     if (commitPhase)
     {
         logf (LOG_DEBUG, "Server unlocks org");
-        zebraUnlock (server_lock_org);
+        zebra_unlock (zi->server_lock_org);
     }
     else
     {
         logf (LOG_DEBUG, "Server unlocks cmt");
-        zebraUnlock (server_lock_cmt);
+        zebra_unlock (zi->server_lock_cmt);
     }
 }
 
-int zebraServerLockGetState (Res res, time_t *timep)
+int zebra_server_lock_get_state (ZServerInfo *zi, time_t *timep)
 {
-    char pathPrefix[1024];
     char path[1024];
     char buf[256];
     int fd;
     struct stat xstat;
     
-    zebraLockPrefix (res, pathPrefix);
-
-    sprintf (path, "%s%s", pathPrefix, FNAME_TOUCH_TIME);
+    strcpy (path, zi->server_path_prefix);
+    strcat (path, FNAME_TOUCH_TIME);
     if (stat (path, &xstat) == -1)
         *timep = 1;
     else
         *timep = xstat.st_ctime;
-    
-    sprintf (path, "%s%s", pathPrefix, FNAME_MAIN_LOCK);
+
+    strcpy (path, zi->server_path_prefix);
+    strcat (path, FNAME_MAIN_LOCK);
     fd = open (path, O_BINARY|O_RDONLY);
     if (fd == -1)
     {