e268687bfb
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>
66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
#ifndef __PERF_DATA_H
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#define __PERF_DATA_H
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#include <stdbool.h>
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enum perf_data_mode {
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PERF_DATA_MODE_WRITE,
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PERF_DATA_MODE_READ,
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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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};
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struct perf_data {
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struct perf_data_file file;
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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__is_read(struct perf_data *data)
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{
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return data->mode == PERF_DATA_MODE_READ;
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}
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static inline bool perf_data__is_write(struct perf_data *data)
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{
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return data->mode == PERF_DATA_MODE_WRITE;
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}
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static inline int perf_data__is_pipe(struct perf_data *data)
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{
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return data->is_pipe;
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}
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static inline int perf_data__fd(struct perf_data *data)
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{
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return data->file.fd;
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}
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static inline unsigned long perf_data__size(struct perf_data *data)
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{
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return data->size;
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}
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int perf_data__open(struct perf_data *data);
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void perf_data__close(struct perf_data *data);
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ssize_t perf_data__write(struct perf_data *data,
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void *buf, size_t size);
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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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* If at_exit is set, only rename current perf.data to
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* perf.data.<postfix>, continue write on original data.
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* Set at_exit when flushing the last output.
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*
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* Return value is fd of new output.
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*/
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int perf_data__switch(struct perf_data *data,
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const char *postfix,
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size_t pos, bool at_exit);
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#endif /* __PERF_DATA_H */
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