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#include <setjmp.h> #include <signal.h> #include <stdlib.h> /* !!! This function will not work unless the compiler performs * tail call optimization. Machine-specific asm versions should * be created instead even though the workaround (tail call) * is entirely non-machine-specific... */ int sigsetjmp(sigjmp_buf buf, int save) { long *flag = buf + sizeof(jmp_buf)/sizeof(long); sigset_t *mask = (void *)(flag + 1); if ((*flag = save)) sigprocmask (SIG_SETMASK, NULL, mask); return setjmp((void *)buf); } |