Add a new lock API: apr_global_mutex_t

This is analog to the APR_LOCKALL method of apr_lock_t, and provides
cross-process AND cross-thread mutual exclusion.

I have provided a simple test (based on testprocmutex.c) and stubs
for non-Unix platforms.


git-svn-id: http://svn.apache.org/repos/asf/apr/apr/trunk@63001 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 73 insertions, 0 deletions

diff --git a/include/arch/unix/global_mutex.h b/include/arch/unix/global_mutex.h
new file mode 100644
index 000000000..e1a79bd5d
--- /dev/null
+++ b/include/arch/unix/global_mutex.h
@@ -0,0 +1,73 @@
+/* ====================================================================
+ * The Apache Software License, Version 1.1
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+ * reserved.
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+ * Redistribution and use in source and binary forms, with or without
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+
+#ifndef GLOBAL_MUTEX_H
+#define GLOBAL_MUTEX_H
+
+#include "apr.h"
+#include "apr_private.h"
+#include "apr_general.h"
+#include "apr_lib.h"
+#include "apr_global_mutex.h"
+#include "proc_mutex.h"
+#include "thread_mutex.h"
+
+struct apr_global_mutex_t {
+    apr_pool_t *pool;
+    apr_proc_mutex_t *proc_mutex;
+    apr_thread_mutex_t *thread_mutex;
+};
+
+#endif  /* GLOBAL_MUTEX_H */
+