perf evsel: Introduce perf_evsel__{in,ex}it
Out of the {con,des}structor, as in interpreted language bindings we will
need to go back from the wrapper object to the real thing. In that case
using container_of will save us to have an extra pointer in the perf_evsel
struct.
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>
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 4b3b84c..df0610e 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -6,17 +6,21 @@
#include <linux/bitops.h>
#include <linux/hash.h>
+void perf_evlist__init(struct perf_evlist *evlist)
+{
+ int i;
+
+ for (i = 0; i < PERF_EVLIST__HLIST_SIZE; ++i)
+ INIT_HLIST_HEAD(&evlist->heads[i]);
+ INIT_LIST_HEAD(&evlist->entries);
+}
+
struct perf_evlist *perf_evlist__new(void)
{
struct perf_evlist *evlist = zalloc(sizeof(*evlist));
- if (evlist != NULL) {
- int i;
-
- for (i = 0; i < PERF_EVLIST__HLIST_SIZE; ++i)
- INIT_HLIST_HEAD(&evlist->heads[i]);
- INIT_LIST_HEAD(&evlist->entries);
- }
+ if (evlist != NULL)
+ perf_evlist__init(evlist);
return evlist;
}
@@ -33,11 +37,18 @@
evlist->nr_entries = 0;
}
+void perf_evlist__exit(struct perf_evlist *evlist)
+{
+ free(evlist->mmap);
+ free(evlist->pollfd);
+ evlist->mmap = NULL;
+ evlist->pollfd = NULL;
+}
+
void perf_evlist__delete(struct perf_evlist *evlist)
{
perf_evlist__purge(evlist);
- free(evlist->mmap);
- free(evlist->pollfd);
+ perf_evlist__exit(evlist);
free(evlist);
}