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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 | /* SPDX-License-Identifier: GPL-2.0 */ #ifndef __PERF_DATA_H #define __PERF_DATA_H #include <stdio.h> #include <stdbool.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); bool is_perf_data(const char *path); #endif /* __PERF_DATA_H */ |