/*
* Copyright 2012 The Chromium Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "ppapi/native_client/src/untrusted/irt_stub/thread_creator.h"
#include <pthread.h>
#include "native_client/src/include/nacl_macros.h"
#include "native_client/src/untrusted/irt/irt.h"
static int thread_create(uintptr_t *tid,
void (*func)(void *thread_argument),
void *thread_argument) {
/*
* We know that newlib and glibc use a small pthread_t type, so we
* do not need to wrap pthread_t values.
*/
NACL_ASSERT_SAME_SIZE(pthread_t, uintptr_t);
return pthread_create((pthread_t *) tid, NULL,
(void *(*)(void *thread_argument)) func,
thread_argument);
}
static int thread_join(uintptr_t tid) {
return pthread_join((pthread_t) tid, NULL);
}
static const struct PP_ThreadFunctions thread_funcs = {
thread_create,
thread_join
};
/*
* We cannot tell at link time whether the application uses PPB_Audio,
* because of the way that PPAPI is defined via runtime interface
* query rather than a set of static functions. This means that we
* register the audio thread functions unconditionally. This adds the
* small overhead of pulling in pthread_create() even if the
* application does not use PPB_Audio or libpthread.
*
* If an application developer wants to avoid that cost, they can
* override this function with an empty definition.
*/
void __nacl_register_thread_creator(const struct nacl_irt_ppapihook *hooks) {
hooks->ppapi_register_thread_creator(&thread_funcs);
}