perf tools: Add perf_data_file__write interface

Adding perf_data_file__write interface to centralize output to files.
The function prototype is:

  ssize_t perf_data_file__write(struct perf_data_file *file,
                                void *buf, size_t size);

Returns number of bytes written or -1 in case of error.

NOTE: Also indenting 'struct perf_data_file' members, no functional
      change done.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1385634619-8129-6-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2013-11-28 11:30:17 +01:00 коммит произвёл Arnaldo Carvalho de Melo
Родитель bc3a502bc2
Коммит 6f9a317f2a
2 изменённых файлов: 14 добавлений и 6 удалений

Просмотреть файл

@ -118,3 +118,9 @@ void perf_data_file__close(struct perf_data_file *file)
{ {
close(file->fd); close(file->fd);
} }
ssize_t perf_data_file__write(struct perf_data_file *file,
void *buf, size_t size)
{
return writen(file->fd, buf, size);
}

Просмотреть файл

@ -9,12 +9,12 @@ enum perf_data_mode {
}; };
struct perf_data_file { struct perf_data_file {
const char *path; const char *path;
int fd; int fd;
bool is_pipe; bool is_pipe;
bool force; bool force;
unsigned long size; unsigned long size;
enum perf_data_mode mode; enum perf_data_mode mode;
}; };
static inline bool perf_data_file__is_read(struct perf_data_file *file) static inline bool perf_data_file__is_read(struct perf_data_file *file)
@ -44,5 +44,7 @@ static inline unsigned long perf_data_file__size(struct perf_data_file *file)
int perf_data_file__open(struct perf_data_file *file); int perf_data_file__open(struct perf_data_file *file);
void perf_data_file__close(struct perf_data_file *file); void perf_data_file__close(struct perf_data_file *file);
ssize_t perf_data_file__write(struct perf_data_file *file,
void *buf, size_t size);
#endif /* __PERF_DATA_H */ #endif /* __PERF_DATA_H */