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Handle SIGCHLD

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This commit is contained in:
C. McEnroe 2020-02-08 17:22:51 -05:00
parent 72d8749454
commit 8128edc7eb
1 changed files with 22 additions and 0 deletions
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22
chat.c
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@ -22,6 +22,8 @@
#include <stdbool.h> #include <stdbool.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
#include <sysexits.h> #include <sysexits.h>
#include <unistd.h> #include <unistd.h>
@ -141,6 +143,7 @@ int main(int argc, char *argv[]) {
signal(SIGHUP, signalHandler); signal(SIGHUP, signalHandler);
signal(SIGINT, signalHandler); signal(SIGINT, signalHandler);
signal(SIGTERM, signalHandler); signal(SIGTERM, signalHandler);
signal(SIGCHLD, signalHandler);
sig_t cursesWinch = signal(SIGWINCH, signalHandler); sig_t cursesWinch = signal(SIGWINCH, signalHandler);
struct pollfd fds[2] = { struct pollfd fds[2] = {
@ -155,6 +158,25 @@ int main(int argc, char *argv[]) {
if (signals[SIGHUP]) self.quit = "zzz"; if (signals[SIGHUP]) self.quit = "zzz";
if (signals[SIGINT] || signals[SIGTERM]) break; if (signals[SIGINT] || signals[SIGTERM]) break;
if (signals[SIGCHLD]) {
int status;
while (0 < waitpid(-1, &status, WNOHANG)) {
if (WIFEXITED(status) && WEXITSTATUS(status)) {
uiFormat(
Network, Warm, NULL,
"Process exits with status %d", WEXITSTATUS(status)
);
} else if (WIFSIGNALED(status)) {
uiFormat(
Network, Warm, NULL,
"Process terminates from %s",
strsignal(WTERMSIG(status))
);
}
}
}
if (signals[SIGWINCH]) { if (signals[SIGWINCH]) {
signals[SIGWINCH] = 0; signals[SIGWINCH] = 0;
cursesWinch(SIGWINCH); cursesWinch(SIGWINCH);