1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __PERF_DATA_H
 3#define __PERF_DATA_H
 4
 5#include <stdbool.h>
 6
 7enum perf_data_mode {
 8	PERF_DATA_MODE_WRITE,
 9	PERF_DATA_MODE_READ,
10};
11
12struct perf_data_file {
13	const char	*path;
14	int		 fd;
15};
16
17struct perf_data {
18	struct perf_data_file	 file;
19	bool			 is_pipe;
20	bool			 force;
21	unsigned long		 size;
22	enum perf_data_mode	 mode;
23};
24
25static inline bool perf_data__is_read(struct perf_data *data)
26{
27	return data->mode == PERF_DATA_MODE_READ;
28}
29
30static inline bool perf_data__is_write(struct perf_data *data)
31{
32	return data->mode == PERF_DATA_MODE_WRITE;
33}
34
35static inline int perf_data__is_pipe(struct perf_data *data)
36{
37	return data->is_pipe;
38}
39
40static inline int perf_data__fd(struct perf_data *data)
41{
42	return data->file.fd;
43}
44
45static inline unsigned long perf_data__size(struct perf_data *data)
46{
47	return data->size;
48}
49
50int perf_data__open(struct perf_data *data);
51void perf_data__close(struct perf_data *data);
52ssize_t perf_data__write(struct perf_data *data,
53			      void *buf, size_t size);
54ssize_t perf_data_file__write(struct perf_data_file *file,
55			      void *buf, size_t size);
56/*
57 * If at_exit is set, only rename current perf.data to
58 * perf.data.<postfix>, continue write on original data.
59 * Set at_exit when flushing the last output.
60 *
61 * Return value is fd of new output.
62 */
63int perf_data__switch(struct perf_data *data,
64			   const char *postfix,
65			   size_t pos, bool at_exit);
66#endif /* __PERF_DATA_H */