1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_DATA_H
#define __PERF_DATA_H
#include <stdio.h>
#include <stdbool.h>
#include <unistd.h>
#include <linux/types.h>
enum perf_data_mode {
PERF_DATA_MODE_WRITE,
PERF_DATA_MODE_READ,
};
enum perf_dir_version {
PERF_DIR_SINGLE_FILE = 0,
PERF_DIR_VERSION = 1,
};
struct perf_data_file {
char *path;
union {
int fd;
FILE *fptr;
};
unsigned long size;
};
struct perf_data {
const char *path;
struct perf_data_file file;
bool is_pipe;
bool is_dir;
bool force;
bool use_stdio;
bool in_place_update;
enum perf_data_mode mode;
struct {
u64 version;
struct perf_data_file *files;
int nr;
} dir;
};
static inline bool perf_data__is_read(struct perf_data *data)
{
return data->mode == PERF_DATA_MODE_READ;
}
static inline bool perf_data__is_write(struct perf_data *data)
{
return data->mode == PERF_DATA_MODE_WRITE;
}
static inline int perf_data__is_pipe(struct perf_data *data)
{
return data->is_pipe;
}
static inline bool perf_data__is_dir(struct perf_data *data)
{
return data->is_dir;
}
static inline bool perf_data__is_single_file(struct perf_data *data)
{
return data->dir.version == PERF_DIR_SINGLE_FILE;
}
static inline int perf_data__fd(struct perf_data *data)
{
if (data->use_stdio)
return fileno(data->file.fptr);
return data->file.fd;
}
int perf_data__open(struct perf_data *data);
void perf_data__close(struct perf_data *data);
ssize_t perf_data__read(struct perf_data *data, void *buf, size_t size);
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.
* Set at_exit when flushing the last output.
*
* Return value is fd of new output.
*/
int perf_data__switch(struct perf_data *data,
const char *postfix,
size_t pos, bool at_exit, char **new_filepath);
int perf_data__create_dir(struct perf_data *data, int nr);
int perf_data__open_dir(struct perf_data *data);
void perf_data__close_dir(struct perf_data *data);
int perf_data__update_dir(struct perf_data *data);
unsigned long perf_data__size(struct perf_data *data);
int perf_data__make_kcore_dir(struct perf_data *data, char *buf, size_t buf_sz);
bool has_kcore_dir(const char *path);
char *perf_data__kallsyms_name(struct perf_data *data);
char *perf_data__guest_kallsyms_name(struct perf_data *data, pid_t machine_pid);
bool is_perf_data(const char *path);
#endif /* __PERF_DATA_H */
|
