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perf tools: Add perf_data_file__write function

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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>
This commit is contained in:
Jiri Olsa 2017-01-23 22:42:56 +01:00 committed by Arnaldo Carvalho de Melo
parent eae8ad8042
commit e268687bfb
2 changed files with 9 additions and 1 deletions
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8
tools/perf/util/data.c
View file

@ -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,

2
tools/perf/util/data.h
View file

@ -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.