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| author | Florian Weimer <fweimer@redhat.com> | 2021-06-25 10:51:31 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2021-06-25 12:21:12 +0200 |
| commit | 2c16cb88a6e5ace0fb7cedca86860ea7bde522a7 (patch) | |
| tree | 8e7aa16a33590ccd27050ef3d3b00607b7f15751 /sysdeps/unix/sysv/linux/kernel-posix-timers.h | |
| parent | 1a5a653be2f95d4d9485d08672dc5083c74c39d8 (diff) | |
| download | glibc-2c16cb88a6e5ace0fb7cedca86860ea7bde522a7.tar glibc-2c16cb88a6e5ace0fb7cedca86860ea7bde522a7.tar.gz glibc-2c16cb88a6e5ace0fb7cedca86860ea7bde522a7.tar.bz2 glibc-2c16cb88a6e5ace0fb7cedca86860ea7bde522a7.zip | |
Linux: Move timer helper routines from librt to libc
This adds several temporary GLIBC_PRIVATE exports. The symbol names
are changed so that they all start with __timer_.
It is now possible to invoke the fork handler directly, so
pthread_atfork is no longer necessary. The associated error cannot
happen anymore, and cancellation handling can be removed from
the helper thread routine.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/unix/sysv/linux/kernel-posix-timers.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/kernel-posix-timers.h | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/sysdeps/unix/sysv/linux/kernel-posix-timers.h b/sysdeps/unix/sysv/linux/kernel-posix-timers.h index 959a81a4d2..17fc32d48f 100644 --- a/sysdeps/unix/sysv/linux/kernel-posix-timers.h +++ b/sysdeps/unix/sysv/linux/kernel-posix-timers.h @@ -26,19 +26,27 @@ extern int __no_posix_timers attribute_hidden; /* Callback to start helper thread. */ -extern void __start_helper_thread (void) attribute_hidden; +extern void __timer_start_helper_thread (void); +libc_hidden_proto (__timer_start_helper_thread) /* Control variable for helper thread creation. */ -extern pthread_once_t __helper_once attribute_hidden; +extern pthread_once_t __timer_helper_once; +libc_hidden_proto (__timer_helper_once) + +/* Called from fork so that the new subprocess re-creates the + notification thread if necessary. */ +void __timer_fork_subprocess (void) attribute_hidden; /* TID of the helper thread. */ -extern pid_t __helper_tid attribute_hidden; +extern pid_t __timer_helper_tid; +libc_hidden_proto (__timer_helper_tid) /* List of active SIGEV_THREAD timers. */ -extern struct timer *__active_timer_sigev_thread attribute_hidden; -/* Lock for the __active_timer_sigev_thread. */ -extern pthread_mutex_t __active_timer_sigev_thread_lock attribute_hidden; - +extern struct timer *__timer_active_sigev_thread; +libc_hidden_proto (__timer_active_sigev_thread) +/* Lock for __timer_active_sigev_thread. */ +extern pthread_mutex_t __timer_active_sigev_thread_lock; +libc_hidden_proto (__timer_active_sigev_thread_lock) /* Type of timers in the kernel. */ typedef int kernel_timer_t; |