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Today's Topics:
1. [PATCH 2/3] qemu-thread: add cleanup_push() and cleanup_pop()
(Corentin Chary)
2. (no subject)
3. [PATCH 0/3] [RFC] Threaded vnc server (Corentin Chary)
4. [PATCH 1/3] qemu-thread: add qemu_mutex/cond_destroy and
qemu_mutex_exit (Corentin Chary)
5. Re: [PATCH] savevm: Really verify if a drive supports
snapshots (Markus Armbruster)
6. Re: [PATCH] Name the default PCI bus "pci.0" on all
architectures (Markus Armbruster)
7. (no subject)
8. Re: cg14 (Bob Breuer)
----------------------------------------------------------------------
Message: 1
Date: Sat, 29 May 2010 09:38:05 +0200
From: Corentin Chary <address@hidden>
Subject: [Qemu-devel] [PATCH 2/3] qemu-thread: add cleanup_push() and
cleanup_pop()
To: address@hidden
Cc: Corentin Chary <address@hidden>, Anthony Liguori
<address@hidden>, Gautham R Shenoy <address@hidden>,
Alexander Graf <address@hidden>, Adam Litke <address@hidden>
Message-ID: <address@hidden>
------------------------------
Message: 2
Message-ID: <address@hidden>
These functions manipulate the calling thread's stack of
thread-cancellation clean-up handlers. A clean-up handler is
a function that is automatically executed when a thread is canceled
[...] it might, for example, unlock a mutex so that it becomes
available to other threads in the process.
These two functions are implemented using macros because there is no
other way to do that (pthread man, again):
On Linux, the pthread_cleanup_push() and pthread_cleanup_pop()
functions are implemented as macros that expand to text containing
'{' and '}', respectively. This means that variables declared
within the scope of paired calls to these functions will only
be visible within that scope.
Signed-off-by: Corentin Chary <address@hidden>
---
qemu-thread.h | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/qemu-thread.h b/qemu-thread.h
index 19bb30c..e5006bb 100644
--- a/qemu-thread.h
+++ b/qemu-thread.h
@@ -41,4 +41,8 @@ void qemu_thread_self(QemuThread *thread);
int qemu_thread_equal(QemuThread *thread1, QemuThread *thread2);
void qemu_thread_exit(void *retval);
+#define qemu_thread_cleanup_pop(execute) pthread_cleanup_pop(execute)
+#define qemu_thread_cleanup_push(routine, arg) \
+ pthread_cleanup_push(routine, arg)
+
#endif