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