From c1a85f9caaa8476a69b392349e90b7c4981e7db3 Mon Sep 17 00:00:00 2001
From: Adam Dickmeiss <adam@indexdata.dk>
Date: Fri, 5 May 2000 13:48:03 +0000
Subject: [PATCH] Fixed locking for metafiles.

---
 bfile/mfile.c        |    6 +++++-
 include/zebra-lock.h |    1 +
 util/zebra-lock.c    |   20 ++++++++++++++++++++
 win/makefile         |    9 ++++++---
 4 files changed, 32 insertions(+), 4 deletions(-)

diff --git a/bfile/mfile.c b/bfile/mfile.c
index 6942bbd..6afd611 100644
--- a/bfile/mfile.c
+++ b/bfile/mfile.c
@@ -4,7 +4,10 @@
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: mfile.c,v $
- * Revision 1.38  2000-03-20 19:08:35  adam
+ * Revision 1.39  2000-05-05 13:48:03  adam
+ * Fixed locking for metafiles.
+ *
+ * Revision 1.38  2000/03/20 19:08:35  adam
  * Added remote record import using Z39.50 extended services and Segment
  * Requests.
  *
@@ -324,6 +327,7 @@ MFile_area mf_init(const char *name, const char *spec)
 	    if (!meta_f)
 	    {
 	    	meta_f = (meta_file *) xmalloc(sizeof(*meta_f));
+        	zebra_mutex_init (&meta_f->mutex);
 	    	meta_f->ma = ma;
 	    	meta_f->next = ma->mfiles;
 	    	meta_f->open = 0;
diff --git a/include/zebra-lock.h b/include/zebra-lock.h
index ccdd95f..44de1f4 100644
--- a/include/zebra-lock.h
+++ b/include/zebra-lock.h
@@ -23,6 +23,7 @@ typedef struct {
     int dummy;
 # endif
 #endif
+    int state;
 } Zebra_mutex;
 
 YAZ_EXPORT int zebra_mutex_init (Zebra_mutex *p);
diff --git a/util/zebra-lock.c b/util/zebra-lock.c
index 769de1b..dfd8cea 100644
--- a/util/zebra-lock.c
+++ b/util/zebra-lock.c
@@ -1,10 +1,17 @@
 
 #include <assert.h>
+#include <stdio.h>
 
 #include <zebra-lock.h>
 
+
 int zebra_mutex_init (Zebra_mutex *p)
 {
+    if (p->state == 1)
+    {
+        fprintf (stderr, "zebra_mutex_init. state=%d\n", p->state);
+    }
+    p->state = 1;
 #if HAVE_PTHREAD_H
     pthread_mutex_init (&p->mutex, 0);
 #endif
@@ -16,6 +23,11 @@ int zebra_mutex_init (Zebra_mutex *p)
 
 int zebra_mutex_destroy (Zebra_mutex *p)
 {
+    --(p->state);
+    if (p->state != 0)
+    {
+        fprintf (stderr, "zebra_mutex_destroy. state = %d\n", p->state);
+    } 
 #if HAVE_PTHREAD_H
     pthread_mutex_destroy (&p->mutex);
 #endif
@@ -27,6 +39,10 @@ int zebra_mutex_destroy (Zebra_mutex *p)
 
 int zebra_mutex_lock (Zebra_mutex *p)
 {
+    if (p->state != 1)
+    {
+        fprintf (stderr, "zebra_mutex_lock. state = %d\n", p->state);
+    }
 #if HAVE_PTHREAD_H
     pthread_mutex_lock (&p->mutex);
 #endif
@@ -38,6 +54,10 @@ int zebra_mutex_lock (Zebra_mutex *p)
 
 int zebra_mutex_unlock (Zebra_mutex *p)
 {
+    if (p->state != 1)
+    {
+        fprintf (stderr, "zebra_mutex_unlock. state = %d\n", p->state);
+    }
 #if HAVE_PTHREAD_H
     pthread_mutex_unlock (&p->mutex);
 #endif
diff --git a/win/makefile b/win/makefile
index b7a43c2..1bc68c8 100644
--- a/win/makefile
+++ b/win/makefile
@@ -1,11 +1,11 @@
 # Z'mbol makefile for MS NMAKE
-# $Id: makefile,v 1.4 2000-04-19 14:35:59 adam Exp $
+# $Id: makefile,v 1.5 2000-05-05 13:48:03 adam Exp $
  
 ###########################################################
 ############### Parameters 
 ###########################################################
 
-DEBUG=0   # 0 for release, 1 for debug
+DEBUG=1   # 0 for release, 1 for debug
 
 default: all
 
@@ -392,7 +392,10 @@ $(ALL_OBJS): makefile
 ###########################################################
 #
 # $Log: makefile,v $
-# Revision 1.4  2000-04-19 14:35:59  adam
+# Revision 1.5  2000-05-05 13:48:03  adam
+# Fixed locking for metafiles.
+#
+# Revision 1.4  2000/04/19 14:35:59  adam
 # WIN32 update (this version is known not to work on Windows).
 #
 # Revision 1.3  2000/04/17 14:22:00  adam
-- 
1.7.10.4