a4a6668a62
We will need it in following patch, where we can't use the container_of() trick to get the higher level object. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-vgs9aoek21v14o3obza586yy@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ORDERED_EVENTS_H
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#define __ORDERED_EVENTS_H
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#include <linux/types.h>
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struct perf_sample;
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struct ordered_event {
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u64 timestamp;
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u64 file_offset;
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union perf_event *event;
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struct list_head list;
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};
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enum oe_flush {
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OE_FLUSH__NONE,
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OE_FLUSH__FINAL,
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OE_FLUSH__ROUND,
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OE_FLUSH__HALF,
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};
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struct ordered_events;
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typedef int (*ordered_events__deliver_t)(struct ordered_events *oe,
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struct ordered_event *event);
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struct ordered_events_buffer {
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struct list_head list;
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struct ordered_event event[0];
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};
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struct ordered_events {
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u64 last_flush;
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u64 next_flush;
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u64 max_timestamp;
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u64 max_alloc_size;
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u64 cur_alloc_size;
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struct list_head events;
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struct list_head cache;
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struct list_head to_free;
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struct ordered_events_buffer *buffer;
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struct ordered_event *last;
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ordered_events__deliver_t deliver;
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int buffer_idx;
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unsigned int nr_events;
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enum oe_flush last_flush_type;
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u32 nr_unordered_events;
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bool copy_on_queue;
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void *data;
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};
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int ordered_events__queue(struct ordered_events *oe, union perf_event *event,
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u64 timestamp, u64 file_offset);
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void ordered_events__delete(struct ordered_events *oe, struct ordered_event *event);
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int ordered_events__flush(struct ordered_events *oe, enum oe_flush how);
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void ordered_events__init(struct ordered_events *oe, ordered_events__deliver_t deliver,
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void *data);
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void ordered_events__free(struct ordered_events *oe);
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void ordered_events__reinit(struct ordered_events *oe);
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static inline
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void ordered_events__set_alloc_size(struct ordered_events *oe, u64 size)
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{
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oe->max_alloc_size = size;
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}
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static inline
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void ordered_events__set_copy_on_queue(struct ordered_events *oe, bool copy)
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{
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oe->copy_on_queue = copy;
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}
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#endif /* __ORDERED_EVENTS_H */
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