25 lines
553 B
C++
25 lines
553 B
C++
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#include <stdlib.h>
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#include <unistd.h>
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#define ATEXIT_MAX_FUNCS 32
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typedef void (*atexit_func_t)(void);
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atexit_func_t atexit_functions[ATEXIT_MAX_FUNCS];
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int atexit_function_count = 0;
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extern "C"
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{
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int atexit(atexit_func_t handler)
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{
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if (atexit_function_count >= ATEXIT_MAX_FUNCS) return -1;
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atexit_functions[atexit_function_count++] = handler;
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return 0;
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}
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noreturn void exit(int status)
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{
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for (int i = 0; i < atexit_function_count; i++) { atexit_functions[i](); }
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_exit(status);
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}
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}
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