perf tools: Add perf_data_file__write function (e268687b) · Commits · 戴 / test

Adding perf_data_file__write function to provide single file write operation. Signed-off-by:

Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Changbin Du <changbin.du@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-c3f9p4xzykr845ktqcek6p4t@git.kernel.org Signed-off-by:

Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/data.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -144,10 +144,16 @@ void perf_data__close(struct perf_data *data)
		close(data->file.fd);
		}

		ssize_t perf_data_file__write(struct perf_data_file *file,
		void *buf, size_t size)
		{
		return writen(file->fd, buf, size);
		}

		ssize_t perf_data__write(struct perf_data *data,
		void *buf, size_t size)
		{
		return writen(data->file.fd, buf, size);
		return perf_data_file__write(&data->file, buf, size);
		}

		int perf_data__switch(struct perf_data *data,

tools/perf/util/data.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -50,6 +50,8 @@ int perf_data__open(struct perf_data *data);
		void perf_data__close(struct perf_data *data);
		ssize_t perf_data__write(struct perf_data *data,
		void *buf, size_t size);
		ssize_t perf_data_file__write(struct perf_data_file *file,
		void *buf, size_t size);
		/*
		* If at_exit is set, only rename current perf.data to
		* perf.data.<postfix>, continue write on original data.

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