From 40c3c0c9ac2befd28df3844dc9efdbadee3af5c0 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 16 May 2018 16:42:26 -0300 Subject: 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 Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-do6xgtwpmfl8zjs1euxsd2du@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/api/fs/tracing_path.c | 15 +++++++++++++++ tools/lib/api/fs/tracing_path.h | 5 +++++ 2 files changed, 20 insertions(+) (limited to 'tools/lib') 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 */ -- cgit v1.2.3