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- #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_cpu_mask {
- unsigned long *bits;
- size_t nbits;
- };
- #define MMAP_CPU_MASK_BYTES(m) \
- (BITS_TO_LONGS(((struct mmap_cpu_mask *)m)->nbits) * sizeof(unsigned long))
- /**
- * 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
- struct mmap_cpu_mask affinity_mask;
- void *data;
- int comp_level;
- };
- struct mmap_params {
- struct perf_mmap_param core;
- int nr_cblocks, affinity, flush, comp_level;
- struct auxtrace_mmap_params auxtrace_mp;
- };
- int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu);
- void mmap__munmap(struct mmap *map);
- union perf_event *perf_mmap__read_forward(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 mmap__mmap_len(struct mmap *map);
- void mmap_cpu_mask__scnprintf(struct mmap_cpu_mask *mask, const char *tag);
- #endif /*__PERF_MMAP_H */
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