c11: Import threads.h emulation library.

Implementation is based of https://gist.github.com/2223710 with the
following modifications:
- inline implementatation
- retain XP compatability
- add temporary hack for static mutex initializers (as they are not part
  of the stack but still widely used internally)
- make TIME_UTC a conditional macro (some system headers already define
  it, so this prevents conflict)
- respect HAVE_PTHREAD macro

Reviewed-by: Brian Paul <[email protected]>
Acked-by: Ian Romanick <[email protected]>
Acked-by: Chad Versace <[email protected]>

1 files changed, 58 insertions, 0 deletions

diff --git a/include/c11/threads.h b/include/c11/threads.h
new file mode 100644
index 00000000000..4bb78b6500d
--- /dev/null
+++ b/include/c11/threads.h
@@ -0,0 +1,58 @@
+/*
+ * C11 <threads.h> emulation library
+ *
+ * (C) Copyright yohhoy 2012.
+ * Distributed under the Boost Software License, Version 1.0.
+ * (See copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+#ifndef EMULATED_THREADS_H_INCLUDED_
+#define EMULATED_THREADS_H_INCLUDED_
+
+#include <time.h>
+
+#ifndef TIME_UTC
+#define TIME_UTC 1
+#endif
+
+#include "c99_compat.h" /* for `inline` */
+
+/*---------------------------- types ----------------------------*/
+typedef void (*tss_dtor_t)(void*);
+typedef int (*thrd_start_t)(void*);
+
+struct xtime {
+    time_t sec;
+    long nsec;
+};
+typedef struct xtime xtime;
+
+
+/*-------------------- enumeration constants --------------------*/
+enum {
+    mtx_plain     = 0,
+    mtx_try       = 1,
+    mtx_timed     = 2,
+    mtx_recursive = 4
+};
+
+enum {
+    thrd_success = 0, // succeeded
+    thrd_timeout,     // timeout
+    thrd_error,       // failed
+    thrd_busy,        // resource busy
+    thrd_nomem        // out of memory
+};
+
+/*-------------------------- functions --------------------------*/
+
+#if defined(_WIN32) && !defined(__CYGWIN__)
+#include "threads_win32.h"
+#elif defined(HAVE_PTHREAD)
+#include "threads_posix.h"
+#else
+#error Not supported on this platform.
+#endif
+
+
+
+#endif /* EMULATED_THREADS_H_INCLUDED_ */