Add pthreads threading backend and move the POSIX port over to using it

[pdclib.old] / opt / pthreads / mtx_init.c

diff --git a/opt/pthreads/mtx_init.c b/opt/pthreads/mtx_init.c
new file mode 100644 (file)
index 0000000..90c67e6
--- /dev/null
+++ b/opt/pthreads/mtx_init.c
@@ -0,0 +1,44 @@
+#ifndef REGTEST
+#include <threads.h>
+#include <pthread.h>
+
+int mtx_init(mtx_t *mtx, int type)
+{
+    if(type == mtx_plain || type == mtx_timed) {
+        if(pthread_mutex_init(mtx, NULL) == 0)
+            return thrd_success;
+        else
+            return thrd_error;
+
+    } else if (type == mtx_recursive || type == (mtx_recursive | mtx_timed)) {
+        int rc = thrd_error;
+        pthread_mutexattr_t attr;
+
+        if(pthread_mutexattr_init(&attr))
+            goto cleanup1;
+
+        if(pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE))
+            goto cleanup2;
+
+        if(pthread_mutex_init(mtx, &attr) == 0)
+            rc = thrd_success;
+
+    cleanup2:
+        pthread_mutexattr_destroy(&attr);
+    cleanup1:
+        return rc;
+    } else {
+        return thrd_error;
+    }
+}
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+    return TEST_RESULTS;
+}
+
+#endif