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sleep: On SIGINT, call default SIGINT handler after printing remaining time

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With this, hitting ctrl-c twice in `for i in $(seq 10) { sleep 1 }`
terminates the loop as expected (...well, I'd expect it to quit after
just one ctrl-c, but serenity's shell makes a single ctrl-c only
quit the current loop iteration).

Part of #3419.
This commit is contained in:
Nico Weber 2020-09-08 10:19:07 -04:00 • committed by Andreas Kling
parent 92bfe40954
commit 42153221a5
Notes: sideshowbarker 2024-07-19 02:49:27 +09:00
1 changed files with 9 additions and 1 deletions
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10
Userland/sleep.cpp
View file

@ -30,8 +30,10 @@
#include <string.h>
#include <unistd.h>
static bool g_interrupted;
static void handle_sigint(int)
{
g_interrupted = true;
}
int main(int argc, char** argv)
@ -47,7 +49,7 @@ int main(int argc, char** argv)
sa.sa_handler = handle_sigint;
sigaction(SIGINT, &sa, nullptr);
if (pledge("stdio", nullptr) < 0) {
if (pledge("stdio sigaction", nullptr) < 0) {
perror("pledge");
return 1;
}
@ -56,5 +58,11 @@ int main(int argc, char** argv)
if (remaining) {
printf("Sleep interrupted with %u seconds remaining.\n", remaining);
}
if (g_interrupted) {
signal(SIGINT, SIG_DFL);
raise(SIGINT);
}
return 0;
}