Add means for running some tests only o-o-p, add messaging o-o-p test.

ppapi/tests/pp_thread.h

+/* Copyright (c) 2011 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef PPAPI_TESTS_PP_THREAD_H_
+#define PPAPI_TESTS_PP_THREAD_H_
+
+#include "ppapi/c/pp_macros.h"
+
+/**
+ * @file
+ * This file provides platform-independent wrappers around threads.
+ */
+#if defined(PPAPI_HAS_POSIX_THREADS)
+#include <pthread.h>
+#elif defined(PPAPI_HAS_WINDOWS_THREADS)
+#include <process.h>
+#include <windows.h>
+#endif
+
+#if defined(PPAPI_HAS_POSIX_THREADS)
+typedef pthread_t PP_ThreadType;
+#elif defined(PPAPI_HAS_WINDOWS_THREADS)
+typedef uintptr_t PP_ThreadType;
+#endif
+
+typedef void (PP_ThreadFunction)(void* data);
+
+PP_INLINE bool PP_CreateThread(PP_ThreadType* thread,
+                               PP_ThreadFunction function,
+                               void* thread_arg);
+PP_INLINE void PP_JoinThread(PP_ThreadType thread);
+
+#if defined(PPAPI_HAS_POSIX_THREADS)
+/* Because POSIX thread functions return void* and Windows thread functions do
+ * not, we make PPAPI thread functions have the least capability (no returns).
+ * This struct wraps the user data & function so that we can use the correct
+ * function type on POSIX platforms.
+ */
+struct PP_ThreadFunctionArgWrapper {
+  void* user_data;
+  PP_ThreadFunction* user_function;
+};
+
+PP_INLINE void* PP_POSIXThreadFunctionThunk(void* param) {

[polina, 2011/08/17 17:58:15]

s/param/posix_thread_arg/?

[dmichael (off chromium), 2011/08/17 21:15:15]

Done.

+  PP_ThreadFunctionArgWrapper* arg_wrapper =
+      (PP_ThreadFunctionArgWrapper*)param;
+  arg_wrapper->user_function(arg_wrapper->user_data);
+  free(param);
+  return NULL;
+}
+
+PP_INLINE bool PP_CreateThread(PP_ThreadType* thread,
+                               PP_ThreadFunction function,
+                               void* thread_arg) {
+  PP_ThreadFunctionArgWrapper* arg_wrapper =
+      (PP_ThreadFunctionArgWrapper*)malloc(sizeof(PP_ThreadFunctionArgWrapper));
+  arg_wrapper->user_function = function;
+  arg_wrapper->user_data = thread_arg;
+  return (pthread_create((pthread_t*)thread,

[brettw, 2011/08/16 22:55:53]

It doesn't seem like this (pthread_t*) cast should be necessary.

[dmichael (off chromium), 2011/08/17 21:15:15]

Done.

+                         NULL,
+                         PP_POSIXThreadFunctionThunk,
+                         arg_wrapper) == 0);
+}
+
+PP_INLINE void PP_JoinThread(PP_ThreadType thread) {
+  void* exit_status;
+  pthread_join(thread, &exit_status);
+}
+
+#elif defined(PPAPI_HAS_WINDOWS_THREADS)
+typedef DWORD (PP_WindowsThreadFunction)(void* data);

[polina, 2011/08/17 17:58:15]

missing newlines for visual separation?

[dmichael (off chromium), 2011/08/17 21:15:15]

I'm not sure where you wanted them. I added one between the typedef and the
PP_CreateThread definition.

+PP_INLINE bool PP_CreateThread(PP_ThreadType* thread,
+                               PP_ThreadFunction function,
+                               void* thread_arg) {
+  if (!thread)
+    return false;
+  *thread = ::_beginthread(function,
+                           0,  /* Use default stack size. */
+                           thread_arg);
+  return (*thread != NULL);
+}
+
+PP_INLINE void PP_JoinThread(PP_ThreadType thread) {
+  ::WaitForSingleObject((HANDLE)thread, INFINITE);
+}
+
+#endif
+
+
+/**
+ * @}
+ */
+
+#endif  /* PPAPI_TESTS_PP_THREAD_H_ */
+