tegrakernel/kernel/kernel-4.9/tools/perf/util/data.h

60 lines
1.3 KiB
C

#ifndef __PERF_DATA_H
#define __PERF_DATA_H
#include <stdbool.h>
enum perf_data_mode {
PERF_DATA_MODE_WRITE,
PERF_DATA_MODE_READ,
};
struct perf_data_file {
const char *path;
int fd;
bool is_pipe;
bool force;
unsigned long size;
enum perf_data_mode mode;
};
static inline bool perf_data_file__is_read(struct perf_data_file *file)
{
return file->mode == PERF_DATA_MODE_READ;
}
static inline bool perf_data_file__is_write(struct perf_data_file *file)
{
return file->mode == PERF_DATA_MODE_WRITE;
}
static inline int perf_data_file__is_pipe(struct perf_data_file *file)
{
return file->is_pipe;
}
static inline int perf_data_file__fd(struct perf_data_file *file)
{
return file->fd;
}
static inline unsigned long perf_data_file__size(struct perf_data_file *file)
{
return file->size;
}
int perf_data_file__open(struct perf_data_file *file);
void perf_data_file__close(struct perf_data_file *file);
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 file.
* Set at_exit when flushing the last output.
*
* Return value is fd of new output.
*/
int perf_data_file__switch(struct perf_data_file *file,
const char *postfix,
size_t pos, bool at_exit);
#endif /* __PERF_DATA_H */