30 lines
568 B
C
30 lines
568 B
C
#define _XOPEN_SOURCE 700
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#include <stdio.h>
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#include <signal.h>
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#include <string.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdlib.h>
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void handler(int sig)
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{
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printf("sig is %d, handler ...\n", sig);
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// exit(0);
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}
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int main()
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{
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struct sigaction sa;
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sa.sa_handler = handler;
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sigfillset(&sa.sa_mask);
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// sa.sa_flags = 0;
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// 信号只能被处理一次，下次恢复默认行为
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// sa.sa_flags |= SA_RESETHAND; // 重置默认的信号处理行为
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sigaction(SIGINT, &sa, NULL);
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while (1)
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;
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return 0;
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} |