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e0fcfb086f
As this isn't used at all in mmap.h but in evlist.h, so to cut down the header dependency tree, move it to where it is used. Also add mmap.h to the places using it but previously getting it indirectly via evlist.h. Add missing pthread.h to evlist.h, as it has a pthread_t struct member and was getting the header via mmap.h. Noticed while processing a Jiri's libperf batch touching mmap.h, where almost everything gets rebuilt because evlist.h is so popular, so cut down't this rebuild the world party. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Song Liu <songliubraving@fb.com> Link: https://lkml.kernel.org/n/tip-he0uljeftl0xfveh3d6vtode@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
#ifndef __PERF_MMAP_H
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#define __PERF_MMAP_H 1
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#include <linux/compiler.h>
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#include <linux/refcount.h>
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#include <linux/types.h>
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#include <linux/ring_buffer.h>
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#include <stdbool.h>
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#include <pthread.h> // for cpu_set_t
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#ifdef HAVE_AIO_SUPPORT
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#include <aio.h>
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#endif
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#include "auxtrace.h"
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#include "event.h"
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struct aiocb;
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/**
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* struct mmap - perf's ring buffer mmap details
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*
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* @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
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*/
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struct mmap {
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void *base;
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int mask;
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int fd;
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int cpu;
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refcount_t refcnt;
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u64 prev;
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u64 start;
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u64 end;
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bool overwrite;
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struct auxtrace_mmap auxtrace_mmap;
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char event_copy[PERF_SAMPLE_MAX_SIZE] __aligned(8);
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#ifdef HAVE_AIO_SUPPORT
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struct {
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void **data;
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struct aiocb *cblocks;
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struct aiocb **aiocb;
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int nr_cblocks;
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} aio;
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#endif
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cpu_set_t affinity_mask;
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u64 flush;
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void *data;
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int comp_level;
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};
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struct mmap_params {
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int prot, mask, nr_cblocks, affinity, flush, comp_level;
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struct auxtrace_mmap_params auxtrace_mp;
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};
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int perf_mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu);
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void perf_mmap__munmap(struct mmap *map);
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void perf_mmap__get(struct mmap *map);
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void perf_mmap__put(struct mmap *map);
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void perf_mmap__consume(struct mmap *map);
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static inline u64 perf_mmap__read_head(struct mmap *mm)
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{
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return ring_buffer_read_head(mm->base);
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}
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static inline void perf_mmap__write_tail(struct mmap *md, u64 tail)
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{
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ring_buffer_write_tail(md->base, tail);
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}
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union perf_event *perf_mmap__read_forward(struct mmap *map);
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union perf_event *perf_mmap__read_event(struct mmap *map);
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int perf_mmap__push(struct mmap *md, void *to,
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int push(struct mmap *map, void *to, void *buf, size_t size));
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size_t perf_mmap__mmap_len(struct mmap *map);
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int perf_mmap__read_init(struct mmap *md);
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void perf_mmap__read_done(struct mmap *map);
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#endif /*__PERF_MMAP_H */
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