systemd/0015-util-make-asynchronous_close-really-work-like-an-asy.patch
Zbigniew Jędrzejewski-Szmek 62fe9450da Update to latest git
2014-10-07 15:51:56 -04:00

43 lines
1.3 KiB
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From 5ed1227238724959f020169f5332086439709b55 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 21 Aug 2014 16:13:43 +0200
Subject: [PATCH] util: make asynchronous_close() really work like an
asynchronous version of safe_close()
Save/restore errno, like we do in safe_close(). And don't fork a thread
if the parameter is already negative.
---
src/shared/async.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/src/shared/async.c b/src/shared/async.c
index 3876deda70..115901e637 100644
--- a/src/shared/async.c
+++ b/src/shared/async.c
@@ -73,7 +73,7 @@ int asynchronous_sync(void) {
}
static void *close_thread(void *p) {
- safe_close(PTR_TO_INT(p));
+ assert_se(close_nointr(PTR_TO_INT(p)) != -EBADF);
return NULL;
}
@@ -86,9 +86,13 @@ int asynchronous_close(int fd) {
* but it doesn't, so we work around it, and hide this as a
* far away as we can. */
- r = asynchronous_job(close_thread, INT_TO_PTR(fd));
- if (r < 0)
- safe_close(fd);
+ if (fd >= 0) {
+ PROTECT_ERRNO;
+
+ r = asynchronous_job(close_thread, INT_TO_PTR(fd));
+ if (r < 0)
+ assert_se(close_nointr(fd) != -EBADF);
+ }
return -1;
}