#ifndef __PERF_MMAP_H #define __PERF_MMAP_H 1 #include <internal/mmap.h> #include <linux/compiler.h> #include <linux/refcount.h> #include <linux/types.h> #include <linux/ring_buffer.h> #include <stdbool.h> #include <pthread.h> // for cpu_set_t #ifdef HAVE_AIO_SUPPORT #include <aio.h> #endif #include "auxtrace.h" #include "event.h" struct aiocb; /** * struct mmap - perf's ring buffer mmap details * * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this */ struct mmap { struct perf_mmap core; struct auxtrace_mmap auxtrace_mmap; #ifdef HAVE_AIO_SUPPORT struct { void **data; struct aiocb *cblocks; struct aiocb **aiocb; int nr_cblocks; } aio; #endif cpu_set_t affinity_mask; void *data; int comp_level; }; struct mmap_params { int prot, mask, nr_cblocks, affinity, flush, comp_level; struct auxtrace_mmap_params auxtrace_mp; }; int perf_mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu); void perf_mmap__munmap(struct mmap *map); void perf_mmap__get(struct mmap *map); void perf_mmap__put(struct mmap *map); void perf_mmap__consume(struct mmap *map); static inline u64 perf_mmap__read_head(struct mmap *mm) { return ring_buffer_read_head(mm->core.base); } static inline void perf_mmap__write_tail(struct mmap *md, u64 tail) { ring_buffer_write_tail(md->core.base, tail); } union perf_event *perf_mmap__read_forward(struct mmap *map); union perf_event *perf_mmap__read_event(struct mmap *map); int perf_mmap__push(struct mmap *md, void *to, int push(struct mmap *map, void *to, void *buf, size_t size)); size_t perf_mmap__mmap_len(struct mmap *map); int perf_mmap__read_init(struct mmap *md); void perf_mmap__read_done(struct mmap *map); #endif /*__PERF_MMAP_H */