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62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2012.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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stdlib/on_exit.cpp
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Hooks that is called upon process exit.
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*******************************************************************************/
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#include <stdlib.h>
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struct exithandler
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{
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void (*hook)(int, void*);
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void* param;
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struct exithandler* next;
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}* exit_handler_stack = NULL;
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extern "C" int on_exit(void (*hook)(int, void*), void* param)
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{
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struct exithandler* handler = (struct exithandler*) malloc(sizeof(struct exithandler));
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if ( !handler ) { return -1; }
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handler->hook = hook;
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handler->param = param;
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handler->next = exit_handler_stack;
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exit_handler_stack = handler;
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return 0;
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}
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static void atexit_adapter(int /*status*/, void* user)
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{
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((void (*)(void)) user)();
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}
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extern "C" int atexit(void (*hook)(void))
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{
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return on_exit(atexit_adapter, (void*) hook);
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}
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extern "C" void call_exit_handlers(int status)
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{
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while ( exit_handler_stack )
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{
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exit_handler_stack->hook(status, exit_handler_stack->param);
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exit_handler_stack = exit_handler_stack->next;
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}
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}
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