1 #ifndef __PERF_DATA_H 2 #define __PERF_DATA_H 3 4 #include <stdbool.h> 5 6 enum perf_data_mode { 7 PERF_DATA_MODE_WRITE, 8 PERF_DATA_MODE_READ, 9 }; 10 11 struct perf_data_file { 12 const char *path; 13 int fd; 14 bool is_pipe; 15 bool force; 16 unsigned long size; 17 enum perf_data_mode mode; 18 }; 19 perf_data_file__is_read(struct perf_data_file * file)20static inline bool perf_data_file__is_read(struct perf_data_file *file) 21 { 22 return file->mode == PERF_DATA_MODE_READ; 23 } 24 perf_data_file__is_write(struct perf_data_file * file)25static inline bool perf_data_file__is_write(struct perf_data_file *file) 26 { 27 return file->mode == PERF_DATA_MODE_WRITE; 28 } 29 perf_data_file__is_pipe(struct perf_data_file * file)30static inline int perf_data_file__is_pipe(struct perf_data_file *file) 31 { 32 return file->is_pipe; 33 } 34 perf_data_file__fd(struct perf_data_file * file)35static inline int perf_data_file__fd(struct perf_data_file *file) 36 { 37 return file->fd; 38 } 39 perf_data_file__size(struct perf_data_file * file)40static inline unsigned long perf_data_file__size(struct perf_data_file *file) 41 { 42 return file->size; 43 } 44 45 int perf_data_file__open(struct perf_data_file *file); 46 void perf_data_file__close(struct perf_data_file *file); 47 ssize_t perf_data_file__write(struct perf_data_file *file, 48 void *buf, size_t size); 49 /* 50 * If at_exit is set, only rename current perf.data to 51 * perf.data.<postfix>, continue write on original file. 52 * Set at_exit when flushing the last output. 53 * 54 * Return value is fd of new output. 55 */ 56 int perf_data_file__switch(struct perf_data_file *file, 57 const char *postfix, 58 size_t pos, bool at_exit); 59 #endif /* __PERF_DATA_H */ 60