1 files changed, 74 insertions, 0 deletions
diff --git a/include/libaccess/nslock.h b/include/libaccess/nslock.h
new file mode 100644
index 00000000..af205863
--- /dev/null
+++ b/include/libaccess/nslock.h
@@ -0,0 +1,74 @@
+/** BEGIN COPYRIGHT BLOCK
+ * Copyright 2001 Sun Microsystems, Inc.
+ * Portions copyright 1999, 2001-2003 Netscape Communications Corporation.
+ * All rights reserved.
+ * END COPYRIGHT BLOCK **/
+#ifndef __nslock_h
+#define __nslock_h
+
+/*
+ * Description (nslock.h)
+ *
+ *	This file defines to interface for a locking facility that
+ *	provides exclusive access to a resource across multiple
+ *	server processes.
+ */
+
+#include "nserror.h"
+#include "base/crit.h"
+
+#ifdef __PRIVATE_NSLOCK
+
+/*
+ * Description (NSLock_t)
+ *
+ *	This type represents a lock.  It includes a name which
+ *	uniquely identifies the lock, and a handle for referencing
+ *	the lock once it has been initialized.
+ */
+
+typedef struct NSLock_s NSLock_t;
+struct NSLock_s {
+    NSLock_t * nl_next;			/* next lock on NSLock_List */
+    char * nl_name;			/* name associate with lock */
+#if defined(FILE_UNIX)
+    CRITICAL nl_crit;			/* critical section for threads */
+    SYS_FILE nl_fd;			/* file descriptor */
+    int nl_cnt;				/* nsLockAcquire() count */
+#elif defined(XP_WIN32)
+#else
+#error "nslock.h needs work for this platform"
+#endif
+};
+
+#endif /* __PRIVATE_NSLOCK */
+
+/* Define error identifiers */
+
+/* nsLockOpen() */
+#define NSLERR1000	1000		/* insufficient dynamic memory */
+#define NSLERR1020	1020		/* error creating lock */
+#define NSLERR1040	1040		/* error accessing lock */
+
+/* nsLockAcquire() */
+#define NSLERR1100	1100		/* error acquiring lock */
+
+/* Define error return codes */
+
+#define NSLERRNOMEM	-1		/* insufficient dynamic memory */
+#define NSLERRCREATE	-2		/* error creating lock */
+#define NSLERROPEN	-3		/* error accessing lock */
+#define NSLERRLOCK	-4		/* error acquiring lock */
+
+NSPR_BEGIN_EXTERN_C
+
+/* Functions in nslock.c */
+extern NSAPI_PUBLIC int nsLockOpen(NSErr_t * errp,
+				   char * lockname, void **plock);
+extern NSAPI_PUBLIC int nsLockAcquire(NSErr_t * errp, void * lock);
+extern NSAPI_PUBLIC void nsLockRelease(void * lock);
+extern NSAPI_PUBLIC void nsLockClose(void * lock);
+
+NSPR_END_EXTERN_C
+
+#endif __nslock_h