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Subject[PATCH 2/8] perf ui/progress: Add new helper functions for progress bar
Date
From: Namhyung Kim <namhyung.kim@lge.com>

Introduce ui_progress_setup() and ui_progress__advance() to separate
out from the session logic. It'll be used by other places in the
upcoming patch.

Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/ui/progress.c | 18 ++++++++++++++++++
tools/perf/ui/progress.h | 10 ++++++++++
tools/perf/util/session.c | 24 ++++++++++++------------
3 files changed, 40 insertions(+), 12 deletions(-)

diff --git a/tools/perf/ui/progress.c b/tools/perf/ui/progress.c
index 3ec695607a4d..b5c22c6b1d93 100644
--- a/tools/perf/ui/progress.c
+++ b/tools/perf/ui/progress.c
@@ -19,6 +19,24 @@ void ui_progress__update(u64 curr, u64 total, const char *title)
return progress_fns->update(curr, total, title);
}

+void ui_progress__setup(struct perf_progress *p, u64 total)
+{
+ p->curr = 0;
+ p->next = p->unit = total / 16;
+ p->total = total;
+
+}
+
+void ui_progress__advance(struct perf_progress *p, u64 adv, const char *title)
+{
+ p->curr += adv;
+
+ if (p->curr >= p->next) {
+ p->next += p->unit;
+ ui_progress__update(p->curr, p->total, title);
+ }
+}
+
void ui_progress__finish(void)
{
if (progress_fns->finish)
diff --git a/tools/perf/ui/progress.h b/tools/perf/ui/progress.h
index 257cc224f9cf..3bd23e825953 100644
--- a/tools/perf/ui/progress.h
+++ b/tools/perf/ui/progress.h
@@ -8,10 +8,20 @@ struct ui_progress {
void (*finish)(void);
};

+struct perf_progress {
+ u64 curr;
+ u64 next;
+ u64 unit;
+ u64 total;
+};
+
extern struct ui_progress *progress_fns;

void ui_progress__init(void);

+void ui_progress__setup(struct perf_progress *p, u64 total);
+void ui_progress__advance(struct perf_progress *p, u64 adv, const char *title);
+
void ui_progress__update(u64 curr, u64 total, const char *title);
void ui_progress__finish(void);

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 6c1d4447c5b4..9f62be8bc167 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -538,13 +538,16 @@ static int flush_sample_queue(struct perf_session *s,
struct perf_sample sample;
u64 limit = os->next_flush;
u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL;
- unsigned idx = 0, progress_next = os->nr_samples / 16;
bool show_progress = limit == ULLONG_MAX;
+ struct perf_progress prog;
int ret;

if (!tool->ordered_samples || !limit)
return 0;

+ if (show_progress)
+ ui_progress__setup(&prog, os->nr_samples);
+
list_for_each_entry_safe(iter, tmp, head, list) {
if (iter->timestamp > limit)
break;
@@ -562,10 +565,10 @@ static int flush_sample_queue(struct perf_session *s,
os->last_flush = iter->timestamp;
list_del(&iter->list);
list_add(&iter->list, &os->sample_cache);
- if (show_progress && (++idx >= progress_next)) {
- progress_next += os->nr_samples / 16;
- ui_progress__update(idx, os->nr_samples,
- "Processing time ordered events...");
+
+ if (show_progress) {
+ ui_progress__advance(&prog, 1,
+ "Processing time ordered events...");
}
}

@@ -1310,12 +1313,13 @@ int __perf_session__process_events(struct perf_session *session,
u64 data_offset, u64 data_size,
u64 file_size, struct perf_tool *tool)
{
- u64 head, page_offset, file_offset, file_pos, progress_next;
+ u64 head, page_offset, file_offset, file_pos;
int err, mmap_prot, mmap_flags, map_idx = 0;
size_t mmap_size;
char *buf, *mmaps[NUM_MMAPS];
union perf_event *event;
uint32_t size;
+ struct perf_progress prog;

perf_tool__fill_defaults(tool);

@@ -1326,7 +1330,7 @@ int __perf_session__process_events(struct perf_session *session,
if (data_offset + data_size < file_size)
file_size = data_offset + data_size;

- progress_next = file_size / 16;
+ ui_progress__setup(&prog, file_size);

mmap_size = MMAP_SIZE;
if (mmap_size > file_size)
@@ -1381,11 +1385,7 @@ more:
head += size;
file_pos += size;

- if (file_pos >= progress_next) {
- progress_next += file_size / 16;
- ui_progress__update(file_pos, file_size,
- "Processing events...");
- }
+ ui_progress__advance(&prog, size, "Processing events...");

if (file_pos < file_size)
goto more;
--
1.7.11.7


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