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>
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@ -118,3 +118,9 @@ void perf_data_file__close(struct perf_data_file *file)
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{
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close(file->fd);
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}
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ssize_t perf_data_file__write(struct perf_data_file *file,
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void *buf, size_t size)
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{
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return writen(file->fd, buf, size);
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}
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@ -9,12 +9,12 @@ enum perf_data_mode {
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};
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struct perf_data_file {
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const char *path;
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int fd;
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bool is_pipe;
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bool force;
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unsigned long size;
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enum perf_data_mode mode;
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const char *path;
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int fd;
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bool is_pipe;
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bool force;
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unsigned long size;
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enum perf_data_mode mode;
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};
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static inline bool perf_data_file__is_read(struct perf_data_file *file)
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@ -44,5 +44,7 @@ static inline unsigned long perf_data_file__size(struct perf_data_file *file)
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int perf_data_file__open(struct perf_data_file *file);
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void perf_data_file__close(struct perf_data_file *file);
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ssize_t perf_data_file__write(struct perf_data_file *file,
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void *buf, size_t size);
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#endif /* __PERF_DATA_H */
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