diff options
Diffstat (limited to 'tools/perf/lib/threadmap.c')
| -rw-r--r-- | tools/perf/lib/threadmap.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/tools/perf/lib/threadmap.c b/tools/perf/lib/threadmap.c index 23e628a1437a..4865b73e2586 100644 --- a/tools/perf/lib/threadmap.c +++ b/tools/perf/lib/threadmap.c @@ -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); +} |