diff options
author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-03-10 11:15:54 -0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-03-10 11:15:54 -0300 |
commit | a91e5431d54f5359fccb5ec2512f252eb217707e (patch) | |
tree | 8f8ba4940d9f4e910b339baee13a710baa920378 /tools/perf/util/evlist.c | |
parent | 6547250381eb315acff3d52b4872ad775359407c (diff) |
perf session: Use evlist/evsel for managing perf.data attributes
So that we can reuse things like the id to attr lookup routine
(perf_evlist__id2evsel) that uses a hash table instead of the linear
lookup done in the older perf_header_attr routines, etc.
Also to make evsels/evlist more pervasive an API, simplyfing using the
emerging perf lib.
cc: Arun Sharma <arun@sharma-home.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evlist.c')
-rw-r--r-- | tools/perf/util/evlist.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 190c64c6e266..d852cefa20de 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -19,7 +19,7 @@ #include <linux/hash.h> #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y)) -#define SID(e, x, y) xyarray__entry(e->id, x, y) +#define SID(e, x, y) xyarray__entry(e->sample_id, x, y) void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus, struct thread_map *threads) @@ -106,8 +106,9 @@ void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd) evlist->nr_fds++; } -void perf_evlist__id_hash(struct perf_evlist *evlist, struct perf_evsel *evsel, - int cpu, int thread, u64 id) +static void perf_evlist__id_hash(struct perf_evlist *evlist, + struct perf_evsel *evsel, + int cpu, int thread, u64 id) { int hash; struct perf_sample_id *sid = SID(evsel, cpu, thread); @@ -118,9 +119,16 @@ void perf_evlist__id_hash(struct perf_evlist *evlist, struct perf_evsel *evsel, hlist_add_head(&sid->node, &evlist->heads[hash]); } -static int perf_evlist__id_hash_fd(struct perf_evlist *evlist, - struct perf_evsel *evsel, - int cpu, int thread, int fd) +void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel, + int cpu, int thread, u64 id) +{ + perf_evlist__id_hash(evlist, evsel, cpu, thread, id); + evsel->id[evsel->ids++] = id; +} + +static int perf_evlist__id_add_fd(struct perf_evlist *evlist, + struct perf_evsel *evsel, + int cpu, int thread, int fd) { u64 read_data[4] = { 0, }; int id_idx = 1; /* The first entry is the counter value */ @@ -134,7 +142,7 @@ static int perf_evlist__id_hash_fd(struct perf_evlist *evlist, if (evsel->attr.read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) ++id_idx; - perf_evlist__id_hash(evlist, evsel, cpu, thread, read_data[id_idx]); + perf_evlist__id_add(evlist, evsel, cpu, thread, read_data[id_idx]); return 0; } @@ -292,7 +300,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite) list_for_each_entry(evsel, &evlist->entries, node) { if ((evsel->attr.read_format & PERF_FORMAT_ID) && - evsel->id == NULL && + evsel->sample_id == NULL && perf_evsel__alloc_id(evsel, cpus->nr, threads->nr) < 0) return -ENOMEM; @@ -308,7 +316,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite) goto out_unmap; if ((evsel->attr.read_format & PERF_FORMAT_ID) && - perf_evlist__id_hash_fd(evlist, evsel, cpu, thread, fd) < 0) + perf_evlist__id_add_fd(evlist, evsel, cpu, thread, fd) < 0) goto out_unmap; } } |