From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- tools/perf/util/rwsem.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 tools/perf/util/rwsem.c (limited to 'tools/perf/util/rwsem.c') diff --git a/tools/perf/util/rwsem.c b/tools/perf/util/rwsem.c new file mode 100644 index 000000000..f3d29d8dd --- /dev/null +++ b/tools/perf/util/rwsem.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0 +#include "util.h" +#include "rwsem.h" + +int init_rwsem(struct rw_semaphore *sem) +{ + return pthread_rwlock_init(&sem->lock, NULL); +} + +int exit_rwsem(struct rw_semaphore *sem) +{ + return pthread_rwlock_destroy(&sem->lock); +} + +int down_read(struct rw_semaphore *sem) +{ + return perf_singlethreaded ? 0 : pthread_rwlock_rdlock(&sem->lock); +} + +int up_read(struct rw_semaphore *sem) +{ + return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock); +} + +int down_write(struct rw_semaphore *sem) +{ + return perf_singlethreaded ? 0 : pthread_rwlock_wrlock(&sem->lock); +} + +int up_write(struct rw_semaphore *sem) +{ + return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock); +} -- cgit v1.2.3