From ec381af90208a5675183202cf05078eac208edfb Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Tue, 2 Aug 2011 21:11:36 -0400 Subject: unify and overhaul timed futex waits new features: - FUTEX_WAIT_BITSET op will be used for timed waits if available. this saves a call to clock_gettime. - error checking for the timespec struct is now inside __timedwait so it doesn't need to be duplicated everywhere. cond_timedwait still needs to duplicate it to avoid unlocking the mutex, though. - pushing and popping the cancellation handler is delegated to __timedwait, and cancellable/non-cancellable waits are unified. --- src/internal/futex.h | 3 +++ src/internal/pthread_impl.h | 3 +-- 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'src/internal') diff --git a/src/internal/futex.h b/src/internal/futex.h index c0453822..d7bf2b7d 100644 --- a/src/internal/futex.h +++ b/src/internal/futex.h @@ -10,6 +10,9 @@ #define FUTEX_LOCK_PI 6 #define FUTEX_UNLOCK_PI 7 #define FUTEX_TRYLOCK_PI 8 +#define FUTEX_WAIT_BITSET 9 + +#define FUTEX_CLOCK_REALTIME 256 int __futex(volatile int *, int, int, void *); diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h index 03af4c12..c11840d6 100644 --- a/src/internal/pthread_impl.h +++ b/src/internal/pthread_impl.h @@ -95,8 +95,7 @@ int __libc_sigprocmask(int, const sigset_t *, sigset_t *); void __lock(volatile int *); void __unmapself(void *, size_t); -int __timedwait(volatile int *, int, clockid_t, const struct timespec *, int); -int __timedwait_cp(volatile int *, int, clockid_t, const struct timespec *, int); +int __timedwait(volatile int *, int, clockid_t, const struct timespec *, void (*)(void *), void *, int); void __wait(volatile int *, volatile int *, int, int); void __wake(volatile int *, int, int); -- cgit v1.2.1