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#include <stdio.h>
#include <stdlib.h>
#include "Signal.h"
extern "C" {
int write (int, const void*, unsigned int);
int strlen (const char*);
}
const char* signal_strings [32] = {
"SIGHUP\n",
"SIGINT\n",
"SIGQUIT\n",
"SIGILL\n",
"SIGTRAP\n",
"SIGABRT\n",
"SIGEMT\n",
"SIGFPE\n",
"SIGKILL\n",
"SIGBUS\n",
"SIGSEGV\n",
"SIGSYS\n",
"SIGPIPE\n",
"SIGALRM\n",
"SIGTERM\n",
"SIGUSR1\n",
"SIGUSR2\n",
"SIGCHLD\n",
"SIGPWR\n",
"SIGVTALRM\n",
"SIGPROF\n",
"SIGIO\n",
"SIGWINDOW\n",
"SIGSTOP\n",
"SIGTSTP\n",
"SIGCONT\n",
"SIGTTIN\n",
"SIGTTOU\n",
"SIGURG\n",
"SIGLOST\n",
"SIGRESERVE\n",
"SIGDIL\n"
};
void
outputsig (int sig)
{
write (1, signal_strings [sig-1], strlen (signal_strings [sig-1]));
}
void
ignoresig (int)
{
}
main ()
{
{
printf ("block signal 2\n");
CcuSignalBlocker b (2);
getchar ();
}
printf ("print signals 1 and 2\n");
CcuSignalHandler s1 (1, outputsig);
CcuSignalHandler s3 (2, outputsig);
getchar ();
{
printf ("ignore signal 1\n");
CcuSignalHandler s2 (1, ignoresig);
getchar ();
}
printf ("print again signal 1\n");
while (1);
}
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