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perf evlist: Introduce {prepare,start}_workload refactored from 'perf record'

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So that we can easily start a workload in other tools.

Cc: David Ahern <dsahern@gmail.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>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-zdsksd4aphu0nltg2lpwsw3x@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2011-11-09 08:47:15 -02:00
parent 0f82ebc452
commit 35b9d88ecd
4 changed files with 120 additions and 68 deletions
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10
tools/perf/util/evlist.h
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@ -6,6 +6,7 @@
#include "../perf.h"
#include "event.h"
#include "util.h"
#include <unistd.h>
struct pollfd;
struct thread_map;
@ -22,6 +23,10 @@ struct perf_evlist {
int nr_fds;
int nr_mmaps;
int mmap_len;
struct {
int cork_fd;
pid_t pid;
} workload;
bool overwrite;
union perf_event event_copy;
struct perf_mmap *mmap;
@ -68,6 +73,11 @@ int perf_evlist__open(struct perf_evlist *evlist, bool group);
void perf_evlist__config_attrs(struct perf_evlist *evlist,
struct perf_record_opts *opts);
int perf_evlist__prepare_workload(struct perf_evlist *evlist,
struct perf_record_opts *opts,
const char *argv[]);
int perf_evlist__start_workload(struct perf_evlist *evlist);
int perf_evlist__alloc_mmap(struct perf_evlist *evlist);
int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite);
void perf_evlist__munmap(struct perf_evlist *evlist);