diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2019-02-24 20:06:44 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-02-25 14:42:05 +0100 |
| commit | 145520631130bd64820b591775733256473eac62 (patch) | |
| tree | 3e857a788cecfd1849031f0295a7bec4bd4cbf72 /tools | |
| parent | perf data: Fail check_backup in case of error (diff) | |
| download | linux-145520631130bd64820b591775733256473eac62.tar.xz linux-145520631130bd64820b591775733256473eac62.zip | |
perf data: Add perf_data__(create_dir|close_dir) functions
Add perf_data__create_dir() to create nr files inside 'struct perf_data'
path directory:
int perf_data__create_dir(struct perf_data *data, int nr);
and function to close that data:
void perf_data__close_dir(struct perf_data *data);
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20190224190656.30163-9-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/data.c | 47 | ||||
| -rw-r--r-- | tools/perf/util/data.h | 8 |
2 files changed, 55 insertions, 0 deletions
diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c index d008c3973012..005b3909d1dc 100644 --- a/tools/perf/util/data.c +++ b/tools/perf/util/data.c @@ -7,11 +7,58 @@ #include <fcntl.h> #include <unistd.h> #include <string.h> +#include <asm/bug.h> #include "data.h" #include "util.h" #include "debug.h" +static void close_dir(struct perf_data_file *files, int nr) +{ + while (--nr >= 1) { + close(files[nr].fd); + free(files[nr].path); + } + free(files); +} + +void perf_data__close_dir(struct perf_data *data) +{ + close_dir(data->dir.files, data->dir.nr); +} + +int perf_data__create_dir(struct perf_data *data, int nr) +{ + struct perf_data_file *files = NULL; + int i, ret = -1; + + files = zalloc(nr * sizeof(*files)); + if (!files) + return -ENOMEM; + + data->dir.files = files; + data->dir.nr = nr; + + for (i = 0; i < nr; i++) { + struct perf_data_file *file = &files[i]; + + if (asprintf(&file->path, "%s/data.%d", data->path, i) < 0) + goto out_err; + + ret = open(file->path, O_RDWR|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR); + if (ret < 0) + goto out_err; + + file->fd = ret; + } + + return 0; + +out_err: + close_dir(files, i); + return ret; +} + static bool check_pipe(struct perf_data *data) { struct stat st; diff --git a/tools/perf/util/data.h b/tools/perf/util/data.h index 2bce28117ccf..2d0d015a7d4d 100644 --- a/tools/perf/util/data.h +++ b/tools/perf/util/data.h @@ -21,6 +21,11 @@ struct perf_data { bool is_pipe; bool force; enum perf_data_mode mode; + + struct { + struct perf_data_file *files; + int nr; + } dir; }; static inline bool perf_data__is_read(struct perf_data *data) @@ -64,4 +69,7 @@ ssize_t perf_data_file__write(struct perf_data_file *file, int perf_data__switch(struct perf_data *data, const char *postfix, size_t pos, bool at_exit); + +int perf_data__create_dir(struct perf_data *data, int nr); +void perf_data__close_dir(struct perf_data *data); #endif /* __PERF_DATA_H */ |