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authorFlorian Weimer <fweimer@redhat.com>2023-06-06 11:37:30 +0200
committerFlorian Weimer <fweimer@redhat.com>2023-06-06 11:37:30 +0200
commit047703fbb88eb38fbe973f3abedb279382f181d0 (patch)
treec0f844283ec811b297af8ec4f2226662dc02df37 /support
parente3622a8f391deea3b75a577dce70d023dfa3f1c7 (diff)
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support: Add delayed__exit (with two underscores)
It calls _exit instead of exit once the timeout expires.
Diffstat (limited to 'support')
-rw-r--r--support/delayed_exit.c41
-rw-r--r--support/xthread.h9
2 files changed, 39 insertions, 11 deletions
diff --git a/support/delayed_exit.c b/support/delayed_exit.c
index 53aa40c..bc64ff0 100644
--- a/support/delayed_exit.c
+++ b/support/delayed_exit.c
@@ -23,33 +23,58 @@
#include <stdio.h>
#include <stdlib.h>
#include <support/check.h>
+#include <support/support.h>
#include <time.h>
+#include <unistd.h>
+
+struct delayed_exit_request
+{
+ void (*exitfunc) (int);
+ int seconds;
+};
static void *
-delayed_exit_thread (void *seconds_as_ptr)
+delayed_exit_thread (void *closure)
{
- int seconds = (uintptr_t) seconds_as_ptr;
- struct timespec delay = { seconds, 0 };
+ struct delayed_exit_request *request = closure;
+ void (*exitfunc) (int) = request->exitfunc;
+ struct timespec delay = { request->seconds, 0 };
struct timespec remaining = { 0 };
+ free (request);
+
if (nanosleep (&delay, &remaining) != 0)
FAIL_EXIT1 ("nanosleep: %m");
/* Exit the process successfully. */
- exit (0);
+ exitfunc (0);
return NULL;
}
-void
-delayed_exit (int seconds)
+static void
+delayed_exit_1 (int seconds, void (*exitfunc) (int))
{
/* Create the new thread with all signals blocked. */
sigset_t all_blocked;
sigfillset (&all_blocked);
sigset_t old_set;
xpthread_sigmask (SIG_SETMASK, &all_blocked, &old_set);
+ struct delayed_exit_request *request = xmalloc (sizeof (*request));
+ request->seconds = seconds;
+ request->exitfunc = exitfunc;
/* Create a detached thread. */
- pthread_t thr = xpthread_create
- (NULL, delayed_exit_thread, (void *) (uintptr_t) seconds);
+ pthread_t thr = xpthread_create (NULL, delayed_exit_thread, request);
xpthread_detach (thr);
/* Restore the original signal mask. */
xpthread_sigmask (SIG_SETMASK, &old_set, NULL);
}
+
+void
+delayed_exit (int seconds)
+{
+ delayed_exit_1 (seconds, exit);
+}
+
+void
+delayed__exit (int seconds)
+{
+ delayed_exit_1 (seconds, _exit);
+}
diff --git a/support/xthread.h b/support/xthread.h
index b1e85a9..402df56 100644
--- a/support/xthread.h
+++ b/support/xthread.h
@@ -25,11 +25,14 @@
__BEGIN_DECLS
-/* Terminate the process (with exit status 0) after SECONDS have
- elapsed, from a helper thread. The process is terminated with the
- exit function, so atexit handlers are executed. */
+/* Terminate the process (with exit (0)) after SECONDS have elapsed,
+ from a helper thread. The process is terminated with the exit
+ function, so atexit handlers are executed. */
void delayed_exit (int seconds);
+/* Like delayed_exit, but use _exit (0). */
+void delayed__exit (int seconds);
+
/* Returns true if Priority Inheritance support CLOCK_MONOTONIC. */
bool support_mutex_pi_monotonic (void);