OS/2: Implement apr_thread_mutex functions.

git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@62315 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 51 insertions, 6 deletions

diff --git a/locks/os2/thread_mutex.c b/locks/os2/thread_mutex.c
index d47e3be12..4464ec1a8 100644
--- a/locks/os2/thread_mutex.c
+++ b/locks/os2/thread_mutex.c
@@ -59,30 +59,75 @@
 #include "thread_mutex.h"
 #include "fileio.h"
 #include <string.h>
+#include <stddef.h>
+
+static apr_status_t thread_mutex_cleanup(void *themutex)
+{
+    apr_thread_mutex_t *mutex = themutex;
+    return apr_thread_mutex_destroy(mutex);
+}
+
+
 
 APR_DECLARE(apr_status_t) apr_thread_mutex_create(apr_thread_mutex_t **mutex,
                                                   apr_pool_t *pool)
 {
-    return APR_ENOTIMPL;
+    apr_thread_mutex_t *new_mutex;
+    ULONG rc;
+
+    new_mutex = (apr_thread_mutex_t *)apr_palloc(pool, sizeof(apr_thread_mutex_t));
+    new_mutex->pool = pool;
+
+    rc = DosCreateMutexSem(NULL, &(new_mutex->hMutex), 0, FALSE);
+    *mutex = new_mutex;
+
+    if (!rc)
+        apr_pool_cleanup_register(pool, new_mutex, thread_mutex_cleanup, apr_pool_cleanup_null);
+
+    return APR_OS2_STATUS(rc);
 }
 
+
+
 APR_DECLARE(apr_status_t) apr_thread_mutex_lock(apr_thread_mutex_t *mutex)
 {
-    return APR_ENOTIMPL;
+    ULONG rc = DosRequestMutexSem(mutex->hMutex, SEM_INDEFINITE_WAIT);
+    return APR_OS2_STATUS(rc);
 }
 
+
+
 APR_DECLARE(apr_status_t) apr_thread_mutex_trylock(apr_thread_mutex_t *mutex)
 {
-    return APR_ENOTIMPL;
+    ULONG rc = DosRequestMutexSem(mutex->hMutex, SEM_IMMEDIATE_RETURN);
+    return APR_OS2_STATUS(rc);
 }
 
+
+
 APR_DECLARE(apr_status_t) apr_thread_mutex_unlock(apr_thread_mutex_t *mutex)
 {
-    return APR_ENOTIMPL;
+    ULONG rc = DosReleaseMutexSem(mutex->hMutex);
+    return APR_OS2_STATUS(rc);
 }
 
+
+
 APR_DECLARE(apr_status_t) apr_thread_mutex_destroy(apr_thread_mutex_t *mutex)
 {
-    return APR_ENOTIMPL;
-}
+    ULONG rc;
 
+    if (mutex->hMutex == 0)
+        return APR_SUCCESS;
+
+    while (DosReleaseMutexSem(mutex->hMutex) == 0);
+
+    rc = DosCloseMutexSem(mutex->hMutex);
+
+    if (!rc) {
+        mutex->hMutex = 0;
+        return APR_SUCCESS;
+    }
+
+    return APR_FROM_OS_ERROR(rc);
+}