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	char		*path;
14	int		 fd;
15	unsigned long	 size;
16};
17
18struct perf_data {
19	const char		*path;
20	struct perf_data_file	 file;
21	bool			 is_pipe;
22	bool			 is_dir;
23	bool			 force;
24	enum perf_data_mode	 mode;
25
26	struct {
27		u64			 version;
28		struct perf_data_file	*files;
29		int			 nr;
30	} dir;
31};
32
33static inline bool perf_data__is_read(struct perf_data *data)
34{
35	return data->mode == PERF_DATA_MODE_READ;
36}
37
38static inline bool perf_data__is_write(struct perf_data *data)
39{
40	return data->mode == PERF_DATA_MODE_WRITE;
41}
42
43static inline int perf_data__is_pipe(struct perf_data *data)
44{
45	return data->is_pipe;
46}
47
48static inline bool perf_data__is_dir(struct perf_data *data)
49{
50	return data->is_dir;
51}
52
53static inline int perf_data__fd(struct perf_data *data)
54{
55	return data->file.fd;
56}
57
58int perf_data__open(struct perf_data *data);
59void perf_data__close(struct perf_data *data);
60ssize_t perf_data__write(struct perf_data *data,
61			      void *buf, size_t size);
62ssize_t perf_data_file__write(struct perf_data_file *file,
63			      void *buf, size_t size);
64/*
65 * If at_exit is set, only rename current perf.data to
66 * perf.data.<postfix>, continue write on original data.
67 * Set at_exit when flushing the last output.
68 *
69 * Return value is fd of new output.
70 */
71int perf_data__switch(struct perf_data *data,
72			   const char *postfix,
73			   size_t pos, bool at_exit, char **new_filepath);
74
75int perf_data__create_dir(struct perf_data *data, int nr);
76int perf_data__open_dir(struct perf_data *data);
77void perf_data__close_dir(struct perf_data *data);
78int perf_data__update_dir(struct perf_data *data);
79unsigned long perf_data__size(struct perf_data *data);
80#endif /* __PERF_DATA_H */