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11deb1f9f6
Propagate the errors instead, the users are the ones to decide what to do if a library call fails. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <1258427892-16312-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
#ifndef __PERF_HEADER_H
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#define __PERF_HEADER_H
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#include "../../../include/linux/perf_event.h"
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#include <sys/types.h>
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#include <stdbool.h>
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#include "types.h"
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#include <linux/bitmap.h>
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struct perf_header_attr {
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struct perf_event_attr attr;
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int ids, size;
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u64 *id;
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off_t id_offset;
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};
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enum {
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HEADER_TRACE_INFO = 1,
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HEADER_BUILD_ID,
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HEADER_LAST_FEATURE,
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};
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#define HEADER_FEAT_BITS 256
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struct perf_file_section {
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u64 offset;
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u64 size;
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};
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struct perf_file_header {
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u64 magic;
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u64 size;
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u64 attr_size;
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struct perf_file_section attrs;
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struct perf_file_section data;
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struct perf_file_section event_types;
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DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
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};
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struct perf_header;
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int perf_file_header__read(struct perf_file_header *self,
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struct perf_header *ph, int fd);
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struct perf_header {
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int frozen;
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int attrs, size;
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struct perf_header_attr **attr;
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s64 attr_offset;
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u64 data_offset;
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u64 data_size;
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u64 event_offset;
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u64 event_size;
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DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
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};
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struct perf_header *perf_header__read(int fd);
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void perf_header__write(struct perf_header *self, int fd, bool at_exit);
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int perf_header__add_attr(struct perf_header *self,
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struct perf_header_attr *attr);
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void perf_header__push_event(u64 id, const char *name);
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char *perf_header__find_event(u64 id);
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struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr);
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void perf_header_attr__delete(struct perf_header_attr *self);
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void perf_header_attr__add_id(struct perf_header_attr *self, u64 id);
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u64 perf_header__sample_type(struct perf_header *header);
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struct perf_event_attr *
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perf_header__find_attr(u64 id, struct perf_header *header);
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void perf_header__set_feat(struct perf_header *self, int feat);
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bool perf_header__has_feat(const struct perf_header *self, int feat);
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struct perf_header *perf_header__new(void);
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int perf_header__process_sections(struct perf_header *self, int fd,
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int (*process)(struct perf_file_section *self,
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int feat, int fd));
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#endif /* __PERF_HEADER_H */
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