#include #include "sig.h" void sig_alarmblock() { sig_block(SIGALRM); } void sig_alarmunblock() { sig_unblock(SIGALRM); } void sig_alarmcatch(f) void (*f)(); { sig_catch(SIGALRM,f); } void sig_alarmdefault() { sig_catch(SIGALRM,SIG_DFL); }