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libperf: Add perf_thread_map__get()/perf_thread_map__put()

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Move the following functions:

  thread_map__get()
  thread_map__put()
  thread_map__comm()

to libperf with the following names:

  perf_thread_map__get()
  perf_thread_map__put()
  perf_thread_map__comm()

Add the perf_thread_map__comm() function for it to work/compile.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190721112506.12306-34-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2019-07-21 13:24:20 +02:00
committed by Arnaldo Carvalho de Melo
parent 4b49cce25e
commit 7836e52e51
23 changed files with 74 additions and 68 deletions
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33
tools/perf/lib/threadmap.c
View File

@@ -4,6 +4,8 @@
#include <linux/refcount.h>
#include <internal/threadmap.h>
#include <string.h>
#include <asm/bug.h>
#include <stdio.h>
static void perf_thread_map__reset(struct perf_thread_map *map, int start, int nr)
{
@@ -35,6 +37,11 @@ void perf_thread_map__set_pid(struct perf_thread_map *map, int thread, pid_t pid
map->map[thread].pid = pid;
}
char *perf_thread_map__comm(struct perf_thread_map *map, int thread)
{
return map->map[thread].comm;
}
struct perf_thread_map *perf_thread_map__new_dummy(void)
{
struct perf_thread_map *threads = thread_map__alloc(1);
@@ -46,3 +53,29 @@ struct perf_thread_map *perf_thread_map__new_dummy(void)
}
return threads;
}
static void perf_thread_map__delete(struct perf_thread_map *threads)
{
if (threads) {
int i;
WARN_ONCE(refcount_read(&threads->refcnt) != 0,
"thread map refcnt unbalanced\n");
for (i = 0; i < threads->nr; i++)
free(perf_thread_map__comm(threads, i));
free(threads);
}
}
struct perf_thread_map *perf_thread_map__get(struct perf_thread_map *map)
{
if (map)
refcount_inc(&map->refcnt);
return map;
}
void perf_thread_map__put(struct perf_thread_map *map)
{
if (map && refcount_dec_and_test(&map->refcnt))
perf_thread_map__delete(map);
}