mirror of
https://github.com/fluencelabs/wasmer
synced 2024-12-13 14:25:32 +00:00
48 lines
1.0 KiB
C
48 lines
1.0 KiB
C
/*
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* Copyright 2016 The Emscripten Authors. All rights reserved.
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* Emscripten is available under two separate licenses, the MIT license and the
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* University of Illinois/NCSA Open Source License. Both these licenses can be
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* found in the LICENSE file.
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*/
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#include <setjmp.h>
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#include <stdio.h>
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typedef struct {
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jmp_buf* jmp;
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} jmp_state;
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void setjmp_func(jmp_state* s, int level) {
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jmp_buf* prev_jmp = s->jmp;
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jmp_buf c_jmp;
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if (level == 2) {
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printf("level is 2, perform longjmp!\n");
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longjmp(*(s->jmp), 1);
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}
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if (setjmp(c_jmp) == 0) {
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printf("setjmp normal execution path, level: %d\n", level);
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s->jmp = &c_jmp;
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setjmp_func(s, level + 1);
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} else {
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printf("setjmp exception execution path, level: %d\n", level);
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if (prev_jmp) {
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printf("prev_jmp is not empty, continue with longjmp!\n");
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s->jmp = prev_jmp;
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longjmp(*(s->jmp), 1);
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}
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}
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printf("Exiting setjmp function, level: %d\n", level);
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}
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int main(int argc, char* argv[]) {
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jmp_state s;
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s.jmp = NULL;
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setjmp_func(&s, 0);
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return 0;
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}
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