1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef __PERF_DATA_H
3*4882a593Smuzhiyun #define __PERF_DATA_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include <stdbool.h>
6*4882a593Smuzhiyun #include <linux/types.h>
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun enum perf_data_mode {
9*4882a593Smuzhiyun PERF_DATA_MODE_WRITE,
10*4882a593Smuzhiyun PERF_DATA_MODE_READ,
11*4882a593Smuzhiyun };
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun enum perf_dir_version {
14*4882a593Smuzhiyun PERF_DIR_SINGLE_FILE = 0,
15*4882a593Smuzhiyun PERF_DIR_VERSION = 1,
16*4882a593Smuzhiyun };
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun struct perf_data_file {
19*4882a593Smuzhiyun char *path;
20*4882a593Smuzhiyun int fd;
21*4882a593Smuzhiyun unsigned long size;
22*4882a593Smuzhiyun };
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun struct perf_data {
25*4882a593Smuzhiyun const char *path;
26*4882a593Smuzhiyun struct perf_data_file file;
27*4882a593Smuzhiyun bool is_pipe;
28*4882a593Smuzhiyun bool is_dir;
29*4882a593Smuzhiyun bool force;
30*4882a593Smuzhiyun enum perf_data_mode mode;
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun struct {
33*4882a593Smuzhiyun u64 version;
34*4882a593Smuzhiyun struct perf_data_file *files;
35*4882a593Smuzhiyun int nr;
36*4882a593Smuzhiyun } dir;
37*4882a593Smuzhiyun };
38*4882a593Smuzhiyun
perf_data__is_read(struct perf_data * data)39*4882a593Smuzhiyun static inline bool perf_data__is_read(struct perf_data *data)
40*4882a593Smuzhiyun {
41*4882a593Smuzhiyun return data->mode == PERF_DATA_MODE_READ;
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
perf_data__is_write(struct perf_data * data)44*4882a593Smuzhiyun static inline bool perf_data__is_write(struct perf_data *data)
45*4882a593Smuzhiyun {
46*4882a593Smuzhiyun return data->mode == PERF_DATA_MODE_WRITE;
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun
perf_data__is_pipe(struct perf_data * data)49*4882a593Smuzhiyun static inline int perf_data__is_pipe(struct perf_data *data)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun return data->is_pipe;
52*4882a593Smuzhiyun }
53*4882a593Smuzhiyun
perf_data__is_dir(struct perf_data * data)54*4882a593Smuzhiyun static inline bool perf_data__is_dir(struct perf_data *data)
55*4882a593Smuzhiyun {
56*4882a593Smuzhiyun return data->is_dir;
57*4882a593Smuzhiyun }
58*4882a593Smuzhiyun
perf_data__is_single_file(struct perf_data * data)59*4882a593Smuzhiyun static inline bool perf_data__is_single_file(struct perf_data *data)
60*4882a593Smuzhiyun {
61*4882a593Smuzhiyun return data->dir.version == PERF_DIR_SINGLE_FILE;
62*4882a593Smuzhiyun }
63*4882a593Smuzhiyun
perf_data__fd(struct perf_data * data)64*4882a593Smuzhiyun static inline int perf_data__fd(struct perf_data *data)
65*4882a593Smuzhiyun {
66*4882a593Smuzhiyun return data->file.fd;
67*4882a593Smuzhiyun }
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun int perf_data__open(struct perf_data *data);
70*4882a593Smuzhiyun void perf_data__close(struct perf_data *data);
71*4882a593Smuzhiyun ssize_t perf_data__write(struct perf_data *data,
72*4882a593Smuzhiyun void *buf, size_t size);
73*4882a593Smuzhiyun ssize_t perf_data_file__write(struct perf_data_file *file,
74*4882a593Smuzhiyun void *buf, size_t size);
75*4882a593Smuzhiyun /*
76*4882a593Smuzhiyun * If at_exit is set, only rename current perf.data to
77*4882a593Smuzhiyun * perf.data.<postfix>, continue write on original data.
78*4882a593Smuzhiyun * Set at_exit when flushing the last output.
79*4882a593Smuzhiyun *
80*4882a593Smuzhiyun * Return value is fd of new output.
81*4882a593Smuzhiyun */
82*4882a593Smuzhiyun int perf_data__switch(struct perf_data *data,
83*4882a593Smuzhiyun const char *postfix,
84*4882a593Smuzhiyun size_t pos, bool at_exit, char **new_filepath);
85*4882a593Smuzhiyun
86*4882a593Smuzhiyun int perf_data__create_dir(struct perf_data *data, int nr);
87*4882a593Smuzhiyun int perf_data__open_dir(struct perf_data *data);
88*4882a593Smuzhiyun void perf_data__close_dir(struct perf_data *data);
89*4882a593Smuzhiyun int perf_data__update_dir(struct perf_data *data);
90*4882a593Smuzhiyun unsigned long perf_data__size(struct perf_data *data);
91*4882a593Smuzhiyun int perf_data__make_kcore_dir(struct perf_data *data, char *buf, size_t buf_sz);
92*4882a593Smuzhiyun char *perf_data__kallsyms_name(struct perf_data *data);
93*4882a593Smuzhiyun #endif /* __PERF_DATA_H */
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