X-Git-Url: https://pd.if.org/git/?p=pdclib.old;a=blobdiff_plain;f=opt%2Fpthreads%2Fmtx_trylock.c;fp=opt%2Fpthreads%2Fmtx_trylock.c;h=8a095a5b5c55cb63c045febf0719c01855c1fd02;hp=0000000000000000000000000000000000000000;hb=d293fb98fe80a472ad4d11b4d8a1413d2142064a;hpb=42ca148113de4800d41cbd0491c508160bb1cf36

diff --git a/opt/pthreads/mtx_trylock.c b/opt/pthreads/mtx_trylock.c
new file mode 100644
index 0000000..8a095a5
--- /dev/null
+++ b/opt/pthreads/mtx_trylock.c
@@ -0,0 +1,27 @@
+#ifndef REGTEST
+#include <threads.h>
+#include <pthread.h>
+#include <errno.h>
+
+int mtx_trylock(mtx_t *mtx)
+{
+    switch(pthread_mutex_trylock(mtx)) {
+        case 0:
+            return thrd_success;
+        case EBUSY:
+            return thrd_busy;
+        default:
+            return thrd_error;
+    }
+}
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+    return TEST_RESULTS;
+}
+
+#endif