diff options
author | Pavithra Gurushankar <gpavithrasha@gmail.com> | 2022-08-26 09:42:25 -0700 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-10-04 08:55:19 -0300 |
commit | e57d897703c3bf8b66680c69c0e75fbd9d9617f1 (patch) | |
tree | c805fc18dfe954a31e695edf20c46675e1d6c0d9 /tools/perf/util/mutex.h | |
parent | 6657a099e1858e4a39b501c38c16c6ef77c71a5a (diff) | |
download | linux-e57d897703c3bf8b66680c69c0e75fbd9d9617f1.tar.bz2 |
perf mutex: Wrapped usage of mutex and cond
Added a new header file mutex.h that wraps the usage of
pthread_mutex_t and pthread_cond_t. By abstracting these it is
possible to introduce error checking.
Signed-off-by: Pavithra Gurushankar <gpavithrasha@gmail.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Truong <alexandre.truong@arm.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: André Almeida <andrealmeid@igalia.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Colin Ian King <colin.king@intel.com>
Cc: Dario Petrillo <dario.pk1@gmail.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Dave Marchevsky <davemarchevsky@fb.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Fangrui Song <maskray@google.com>
Cc: Hewenliang <hewenliang4@huawei.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jason Wang <wangborong@cdjrlc.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin Liška <mliska@suse.cz>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Monnet <quentin@isovalent.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Remi Bernon <rbernon@codeweavers.com>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Tom Rix <trix@redhat.com>
Cc: Weiguo Li <liwg06@foxmail.com>
Cc: Wenyu Liu <liuwenyu7@huawei.com>
Cc: William Cohen <wcohen@redhat.com>
Cc: Zechuan Chen <chenzechuan1@huawei.com>
Cc: bpf@vger.kernel.org
Cc: llvm@lists.linux.dev
Cc: yaowenbin <yaowenbin1@huawei.com>
Link: https://lore.kernel.org/r/20220826164242.43412-2-irogers@google.com
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/mutex.h')
-rw-r--r-- | tools/perf/util/mutex.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/tools/perf/util/mutex.h b/tools/perf/util/mutex.h new file mode 100644 index 000000000000..cfff32a902d9 --- /dev/null +++ b/tools/perf/util/mutex.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PERF_MUTEX_H +#define __PERF_MUTEX_H + +#include <pthread.h> +#include <stdbool.h> + +/* + * A wrapper around the mutex implementation that allows perf to error check + * usage, etc. + */ +struct mutex { + pthread_mutex_t lock; +}; + +/* A wrapper around the condition variable implementation. */ +struct cond { + pthread_cond_t cond; +}; + +/* Default initialize the mtx struct. */ +void mutex_init(struct mutex *mtx); +/* + * Initialize the mtx struct and set the process-shared rather than default + * process-private attribute. + */ +void mutex_init_pshared(struct mutex *mtx); +void mutex_destroy(struct mutex *mtx); + +void mutex_lock(struct mutex *mtx); +void mutex_unlock(struct mutex *mtx); +/* Tries to acquire the lock and returns true on success. */ +bool mutex_trylock(struct mutex *mtx); + +/* Default initialize the cond struct. */ +void cond_init(struct cond *cnd); +/* + * Initialize the cond struct and specify the process-shared rather than default + * process-private attribute. + */ +void cond_init_pshared(struct cond *cnd); +void cond_destroy(struct cond *cnd); + +void cond_wait(struct cond *cnd, struct mutex *mtx); +void cond_signal(struct cond *cnd); +void cond_broadcast(struct cond *cnd); + +#endif /* __PERF_MUTEX_H */ |