1 #ifndef __PERF_MMAP_H 2 #define __PERF_MMAP_H 1 3 4 #include <internal/mmap.h> 5 #include <linux/compiler.h> 6 #include <linux/refcount.h> 7 #include <linux/types.h> 8 #include <linux/ring_buffer.h> 9 #include <stdbool.h> 10 #include <pthread.h> // for cpu_set_t 11 #ifdef HAVE_AIO_SUPPORT 12 #include <aio.h> 13 #endif 14 #include "auxtrace.h" 15 #include "event.h" 16 17 struct aiocb; 18 /** 19 * struct mmap - perf's ring buffer mmap details 20 * 21 * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this 22 */ 23 struct mmap { 24 struct perf_mmap core; 25 struct auxtrace_mmap auxtrace_mmap; 26 #ifdef HAVE_AIO_SUPPORT 27 struct { 28 void **data; 29 struct aiocb *cblocks; 30 struct aiocb **aiocb; 31 int nr_cblocks; 32 } aio; 33 #endif 34 cpu_set_t affinity_mask; 35 void *data; 36 int comp_level; 37 }; 38 39 struct mmap_params { 40 struct perf_mmap_param core; 41 int nr_cblocks, affinity, flush, comp_level; 42 struct auxtrace_mmap_params auxtrace_mp; 43 }; 44 45 int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu); 46 void mmap__munmap(struct mmap *map); 47 48 union perf_event *perf_mmap__read_forward(struct mmap *map); 49 50 int perf_mmap__push(struct mmap *md, void *to, 51 int push(struct mmap *map, void *to, void *buf, size_t size)); 52 53 size_t mmap__mmap_len(struct mmap *map); 54 55 #endif /*__PERF_MMAP_H */ 56