pjs/mozglue/build/BionicGlue.cpp

62 строки
1.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <unistd.h>
#include <pthread.h>
#include <vector>
#define NS_EXPORT __attribute__ ((visibility("default")))
/* Android doesn't have pthread_atfork(), so we need to use our own. */
struct AtForkFuncs {
void (*prepare)(void);
void (*parent)(void);
void (*child)(void);
};
static std::vector<AtForkFuncs> atfork;
extern "C" NS_EXPORT int
__wrap_pthread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void))
{
AtForkFuncs funcs;
funcs.prepare = prepare;
funcs.parent = parent;
funcs.child = child;
atfork.push_back(funcs);
return 0;
}
extern "C" NS_EXPORT pid_t
__wrap_fork(void)
{
pid_t pid;
for (std::vector<AtForkFuncs>::reverse_iterator it = atfork.rbegin();
it < atfork.rend(); ++it)
if (it->prepare)
it->prepare();
switch ((pid = fork())) {
case 0:
for (std::vector<AtForkFuncs>::iterator it = atfork.begin();
it < atfork.end(); ++it)
if (it->child)
it->child();
break;
default:
for (std::vector<AtForkFuncs>::iterator it = atfork.begin();
it < atfork.end(); ++it)
if (it->parent)
it->parent();
}
return pid;
}
extern "C" NS_EXPORT int
__wrap_raise(int sig)
{
return pthread_kill(pthread_self(), sig);
}