perf session: Move the global threads list to perf_session

So that we can process two perf.data files.

We still need to add a O_MMAP mode for perf_session so that we
can do all the mmap stuff in it.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1260741029-4430-5-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 10 insertions, 12 deletions

diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 5c0ab14f3db..634b7f7140d 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -2,13 +2,11 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include "session.h"
 #include "thread.h"
 #include "util.h"
 #include "debug.h"
 
-static struct rb_root threads;
-static struct thread *last_match;
-
 void map_groups__init(struct map_groups *self)
 {
 	int i;
@@ -122,9 +120,9 @@ static size_t thread__fprintf(struct thread *self, FILE *fp)
 	       map_groups__fprintf(&self->mg, fp);
 }
 
-struct thread *threads__findnew(pid_t pid)
+struct thread *perf_session__findnew(struct perf_session *self, pid_t pid)
 {
-	struct rb_node **p = &threads.rb_node;
+	struct rb_node **p = &self->threads.rb_node;
 	struct rb_node *parent = NULL;
 	struct thread *th;
 
@@ -133,15 +131,15 @@ struct thread *threads__findnew(pid_t pid)
 	 * so most of the time we dont have to look up
 	 * the full rbtree:
 	 */
-	if (last_match && last_match->pid == pid)
-		return last_match;
+	if (self->last_match && self->last_match->pid == pid)
+		return self->last_match;
 
 	while (*p != NULL) {
 		parent = *p;
 		th = rb_entry(parent, struct thread, rb_node);
 
 		if (th->pid == pid) {
-			last_match = th;
+			self->last_match = th;
 			return th;
 		}
 
@@ -154,8 +152,8 @@ struct thread *threads__findnew(pid_t pid)
 	th = thread__new(pid);
 	if (th != NULL) {
 		rb_link_node(&th->rb_node, parent, p);
-		rb_insert_color(&th->rb_node, &threads);
-		last_match = th;
+		rb_insert_color(&th->rb_node, &self->threads);
+		self->last_match = th;
 	}
 
 	return th;
@@ -269,12 +267,12 @@ int thread__fork(struct thread *self, struct thread *parent)
 	return 0;
 }
 
-size_t threads__fprintf(FILE *fp)
+size_t perf_session__fprintf(struct perf_session *self, FILE *fp)
 {
 	size_t ret = 0;
 	struct rb_node *nd;
 
-	for (nd = rb_first(&threads); nd; nd = rb_next(nd)) {
+	for (nd = rb_first(&self->threads); nd; nd = rb_next(nd)) {
 		struct thread *pos = rb_entry(nd, struct thread, rb_node);
 
 		ret += thread__fprintf(pos, fp);