mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
![Arnaldo Carvalho de Melo](/assets/img/avatar_default.png)
Noticed when processing 'perf kwork' that includes util/data.h without, by luck, having included unistd.h indirectly to get the pid_t typedef. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
107 lines
2.6 KiB
C
107 lines
2.6 KiB
C
/* 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 */
|