Added critical sections for pthreads-library. Thanks to Ian Ibbotson,

[yaz-moved-to-github.git] / util / nmem.c

diff --git a/util/nmem.c b/util/nmem.c
index ea9a9b8..244dc6b 100644 (file)
--- a/util/nmem.c
+++ b/util/nmem.c
@@ -1,10 +1,17 @@
 /*
- * Copyright (c) 1995-1997, Index Data.
+ * Copyright (c) 1995-1998, Index Data.
  * See the file LICENSE for details.
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: nmem.c,v $
- * Revision 1.6  1997-10-31 12:20:09  adam
+ * Revision 1.8  1998-07-03 14:21:27  adam
+ * Added critical sections for pthreads-library. Thanks to Ian Ibbotson,
+ * Fretwell Downing Informatics.
+ *
+ * Revision 1.7  1998/02/11 11:53:36  adam
+ * Changed code so that it compiles as C++.
+ *
+ * Revision 1.6  1997/10/31 12:20:09  adam
  * Improved memory debugging for xmalloc/nmem.c. References to NMEM
  * instead of ODR in n ESPEC-1 handling in source d1_espec.c.
  * Bug fix: missing fclose in data1_read_espec1.
@@ -38,6 +45,8 @@
 #include <log.h>
 #ifdef WINDOWS
 #include <windows.h>
+#elif _REENTRANT
+#include <pthread.h>
 #endif
 
 #define NMEM_CHUNK (10*1024)
@@ -46,6 +55,10 @@
 static CRITICAL_SECTION critical_section;
 #define NMEM_ENTER EnterCriticalSection(&critical_section)
 #define NMEM_LEAVE LeaveCriticalSection(&critical_section)
+#elif _REENTRANT
+static pthread_mutex_t nmem_mutex;
+#define NMEM_ENTER pthread_mutex_lock(&nmem_mutex);
+#define NMEM_LEAVE pthread_mutex_unlock(&nmem_mutex);
 #else
 #define NMEM_ENTER
 #define NMEM_LEAVE
@@ -82,8 +95,8 @@ static nmem_block *get_block(int size)
 
        if (get < size)
            get = size;
-       r = xmalloc(sizeof(*r));
-       r->buf = xmalloc(r->size = get);
+       r = (nmem_block *)xmalloc(sizeof(*r));
+       r->buf = (char *)xmalloc(r->size = get);
     }
     r->top = 0;
     return r;
@@ -148,7 +161,7 @@ NMEM nmem_create(void)
     if (r)
        cfreelist = cfreelist->next;
     else
-       r = xmalloc(sizeof(*r));
+       r = (nmem_control *)xmalloc(sizeof(*r));
     NMEM_LEAVE;
 
 #if NMEM_DEBUG