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