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support big-endian
[tridge/junkcode.git]
/
signal_errno.c
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#include <stdio.h>
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#include <unistd.h>
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#include <signal.h>
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#include <errno.h>
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static volatile int foo;
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static void sigalrm(int num)
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{
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errno = 123;
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foo=1;
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}
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int main(int argc, char *argv[])
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{
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errno = 0;
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write(23, NULL, 0);
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alarm(1);
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signal(SIGALRM, sigalrm);
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write(23, NULL, 0);
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while (!foo) ;
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printf("errno=%d\n", errno);
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return 0;
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}