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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-05-16 22:42:26 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-05-17 18:01:50 +0300 |
| commit | 40c3c0c9ac2befd28df3844dc9efdbadee3af5c0 (patch) | |
| tree | 23d37d1b6ce00f955306258d494d371fba143fe8 /tools/lib/api | |
| parent | 17c257e867be1880eaf7c1b9dac286086d75d1ec (diff) | |
| download | linux-40c3c0c9ac2befd28df3844dc9efdbadee3af5c0.tar.xz | |
tools lib api fs tracing_path: Introduce get/put_events_file() helpers
To make reading events files a tad more compact than with
get_tracing_files("events/foo").
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-do6xgtwpmfl8zjs1euxsd2du@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/api')
| -rw-r--r-- | tools/lib/api/fs/tracing_path.c | 15 | ||||
| -rw-r--r-- | tools/lib/api/fs/tracing_path.h | 5 |
2 files changed, 20 insertions, 0 deletions
diff --git a/tools/lib/api/fs/tracing_path.c b/tools/lib/api/fs/tracing_path.c index 6f5fe942eff4..9cd282425929 100644 --- a/tools/lib/api/fs/tracing_path.c +++ b/tools/lib/api/fs/tracing_path.c @@ -86,6 +86,21 @@ void put_tracing_file(char *file) free(file); } +char *get_events_file(const char *name) +{ + char *file; + + if (asprintf(&file, "%s/events/%s", tracing_path_mount(), name) < 0) + return NULL; + + return file; +} + +void put_events_file(char *file) +{ + free(file); +} + int tracing_path__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name) { diff --git a/tools/lib/api/fs/tracing_path.h b/tools/lib/api/fs/tracing_path.h index 1b65decedfc0..3b32fb439f12 100644 --- a/tools/lib/api/fs/tracing_path.h +++ b/tools/lib/api/fs/tracing_path.h @@ -12,5 +12,10 @@ const char *tracing_path_mount(void); char *get_tracing_file(const char *name); void put_tracing_file(char *file); +char *get_events_file(const char *name); +void put_events_file(char *file); + +#define zput_events_file(ptr) ({ free(*ptr); *ptr = NULL; }) + int tracing_path__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name); #endif /* __API_FS_TRACING_PATH_H */ |