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Implement pthread_condattr_{get,set}clock.

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We only support CLOCK_REALTIME and CLOCK_MONOTONIC for now,
so we us a single bit from pthread_cond_t->value to denote
the clock type. Note that this reduces the width of the counter
to 30 bits, but this should be large enough for all practical
purposes.

bug: 13232338

Change-Id: I857e7da64b3ecbb23eeac7c9f3fbd460f60231bd
This commit is contained in:
Narayan Kamath
2014-03-03 15:38:51 +00:00
parent 2c7c79e6e5
commit 51e6cb33e3
3 changed files with 116 additions and 35 deletions
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8
libc/include/pthread.h
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@@ -127,11 +127,13 @@ int pthread_attr_setschedparam(pthread_attr_t*, const struct sched_param*) __non
int pthread_attr_setschedpolicy(pthread_attr_t*, int) __nonnull((1));
int pthread_attr_setscope(pthread_attr_t*, int) __nonnull((1));
int pthread_attr_setstack(pthread_attr_t*, void*, size_t) __nonnull((1));
int pthread_attr_setstacksize(pthread_attr_t * attr, size_t stack_size) __nonnull((1));
int pthread_attr_setstacksize(pthread_attr_t*, size_t stack_size) __nonnull((1));
int pthread_condattr_destroy(pthread_condattr_t*) __nonnull((1));
int pthread_condattr_getclock(const pthread_condattr_t*, clockid_t*) __nonnull((1, 2));
int pthread_condattr_getpshared(const pthread_condattr_t*, int*) __nonnull((1, 2));
int pthread_condattr_init(pthread_condattr_t*) __nonnull((1));
int pthread_condattr_setclock(pthread_condattr_t*, clockid_t) __nonnull((1));
int pthread_condattr_setpshared(pthread_condattr_t*, int) __nonnull((1));
int pthread_cond_broadcast(pthread_cond_t*) __nonnull((1));
@@ -236,7 +238,9 @@ extern void __pthread_cleanup_pop(__pthread_cleanup_t*, int);
int pthread_attr_getstackaddr(const pthread_attr_t*, void**) __nonnull((1, 2)); /* deprecated */
int pthread_attr_setstackaddr(pthread_attr_t*, void*) __nonnull((1)); /* deprecated */
/* Bionic additions that are deprecated even in the 32-bit ABI. */
// Bionic additions that are deprecated even in the 32-bit ABI.
//
// TODO: Remove them once chromium_org / NFC have switched over.
int pthread_cond_timedwait_monotonic_np(pthread_cond_t*, pthread_mutex_t*, const struct timespec*);
int pthread_cond_timedwait_monotonic(pthread_cond_t*, pthread_mutex_t*, const struct timespec*);
#define HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC 1