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-rw-r--r--tools/perf/util/ui/browser.c228
1 files changed, 155 insertions, 73 deletions
diff --git a/tools/perf/util/ui/browser.c b/tools/perf/util/ui/browser.c
index 611219f..a54b926 100644
--- a/tools/perf/util/ui/browser.c
+++ b/tools/perf/util/ui/browser.c
@@ -1,4 +1,7 @@
+#include "../util.h"
+#include "../../perf.h"
#include "libslang.h"
+#include <newt.h>
#include "ui.h"
#include <linux/compiler.h>
#include <linux/list.h>
@@ -8,8 +11,8 @@
#include "browser.h"
#include "helpline.h"
#include "../color.h"
-#include "../util.h"
-#include <stdio.h>
+
+int newtGetKey(void);
static int ui_browser__percent_color(double percent, bool current)
{
@@ -39,31 +42,62 @@ void ui_browser__gotorc(struct ui_browser *self, int y, int x)
SLsmg_gotorc(self->y + y, self->x + x);
}
+static struct list_head *
+ui_browser__list_head_filter_entries(struct ui_browser *browser,
+ struct list_head *pos)
+{
+ do {
+ if (!browser->filter || !browser->filter(browser, pos))
+ return pos;
+ pos = pos->next;
+ } while (pos != browser->entries);
+
+ return NULL;
+}
+
+static struct list_head *
+ui_browser__list_head_filter_prev_entries(struct ui_browser *browser,
+ struct list_head *pos)
+{
+ do {
+ if (!browser->filter || !browser->filter(browser, pos))
+ return pos;
+ pos = pos->prev;
+ } while (pos != browser->entries);
+
+ return NULL;
+}
+
void ui_browser__list_head_seek(struct ui_browser *self, off_t offset, int whence)
{
struct list_head *head = self->entries;
struct list_head *pos;
+ if (self->nr_entries == 0)
+ return;
+
switch (whence) {
case SEEK_SET:
- pos = head->next;
+ pos = ui_browser__list_head_filter_entries(self, head->next);
break;
case SEEK_CUR:
pos = self->top;
break;
case SEEK_END:
- pos = head->prev;
+ pos = ui_browser__list_head_filter_prev_entries(self, head->prev);
break;
default:
return;
}
+ assert(pos != NULL);
+
if (offset > 0) {
while (offset-- != 0)
- pos = pos->next;
+ pos = ui_browser__list_head_filter_entries(self, pos->next);
} else {
while (offset++ != 0)
- pos = pos->prev;
+ pos = ui_browser__list_head_filter_prev_entries(self, pos->prev);
}
self->top = pos;
@@ -127,11 +161,8 @@ bool ui_browser__is_current_entry(struct ui_browser *self, unsigned row)
void ui_browser__refresh_dimensions(struct ui_browser *self)
{
- int cols, rows;
- newtGetScreenSize(&cols, &rows);
-
- self->width = cols - 1;
- self->height = rows - 2;
+ self->width = SLtt_Screen_Cols - 1;
+ self->height = SLtt_Screen_Rows - 2;
self->y = 1;
self->x = 0;
}
@@ -142,26 +173,11 @@ void ui_browser__reset_index(struct ui_browser *self)
self->seek(self, 0, SEEK_SET);
}
-void ui_browser__add_exit_key(struct ui_browser *self, int key)
-{
- newtFormAddHotKey(self->form, key);
-}
-
-void ui_browser__add_exit_keys(struct ui_browser *self, int keys[])
-{
- int i = 0;
-
- while (keys[i] && i < 64) {
- ui_browser__add_exit_key(self, keys[i]);
- ++i;
- }
-}
-
void __ui_browser__show_title(struct ui_browser *browser, const char *title)
{
SLsmg_gotorc(0, 0);
ui_browser__set_color(browser, NEWT_COLORSET_ROOT);
- slsmg_write_nstring(title, browser->width);
+ slsmg_write_nstring(title, browser->width + 1);
}
void ui_browser__show_title(struct ui_browser *browser, const char *title)
@@ -174,77 +190,143 @@ void ui_browser__show_title(struct ui_browser *browser, const char *title)
int ui_browser__show(struct ui_browser *self, const char *title,
const char *helpline, ...)
{
+ int err;
va_list ap;
- int keys[] = { NEWT_KEY_UP, NEWT_KEY_DOWN, NEWT_KEY_PGUP,
- NEWT_KEY_PGDN, NEWT_KEY_HOME, NEWT_KEY_END, ' ',
- NEWT_KEY_LEFT, NEWT_KEY_ESCAPE, 'q', CTRL('c'), 0 };
-
- if (self->form != NULL)
- newtFormDestroy(self->form);
ui_browser__refresh_dimensions(self);
- self->form = newtForm(NULL, NULL, 0);
- if (self->form == NULL)
- return -1;
-
- self->sb = newtVerticalScrollbar(self->width, 1, self->height,
- HE_COLORSET_NORMAL,
- HE_COLORSET_SELECTED);
- if (self->sb == NULL)
- return -1;
pthread_mutex_lock(&ui__lock);
__ui_browser__show_title(self, title);
- ui_browser__add_exit_keys(self, keys);
- newtFormAddComponent(self->form, self->sb);
+ self->title = title;
+ free(self->helpline);
+ self->helpline = NULL;
va_start(ap, helpline);
- ui_helpline__vpush(helpline, ap);
+ err = vasprintf(&self->helpline, helpline, ap);
va_end(ap);
+ if (err > 0)
+ ui_helpline__push(self->helpline);
pthread_mutex_unlock(&ui__lock);
- return 0;
+ return err ? 0 : -1;
}
-void ui_browser__hide(struct ui_browser *self)
+void ui_browser__hide(struct ui_browser *browser __used)
{
pthread_mutex_lock(&ui__lock);
- newtFormDestroy(self->form);
- self->form = NULL;
ui_helpline__pop();
pthread_mutex_unlock(&ui__lock);
}
-int ui_browser__refresh(struct ui_browser *self)
+static void ui_browser__scrollbar_set(struct ui_browser *browser)
+{
+ int height = browser->height, h = 0, pct = 0,
+ col = browser->width,
+ row = browser->y - 1;
+
+ if (browser->nr_entries > 1) {
+ pct = ((browser->index * (browser->height - 1)) /
+ (browser->nr_entries - 1));
+ }
+
+ while (h < height) {
+ ui_browser__gotorc(browser, row++, col);
+ SLsmg_set_char_set(1);
+ SLsmg_write_char(h == pct ? SLSMG_DIAMOND_CHAR : SLSMG_BOARD_CHAR);
+ SLsmg_set_char_set(0);
+ ++h;
+ }
+}
+
+static int __ui_browser__refresh(struct ui_browser *browser)
{
int row;
+ row = browser->refresh(browser);
+ ui_browser__set_color(browser, HE_COLORSET_NORMAL);
+ SLsmg_fill_region(browser->y + row, browser->x,
+ browser->height - row, browser->width, ' ');
+ ui_browser__scrollbar_set(browser);
+
+ return 0;
+}
+
+int ui_browser__refresh(struct ui_browser *browser)
+{
pthread_mutex_lock(&ui__lock);
- newtScrollbarSet(self->sb, self->index, self->nr_entries - 1);
- row = self->refresh(self);
- ui_browser__set_color(self, HE_COLORSET_NORMAL);
- SLsmg_fill_region(self->y + row, self->x,
- self->height - row, self->width, ' ');
+ __ui_browser__refresh(browser);
pthread_mutex_unlock(&ui__lock);
return 0;
}
-int ui_browser__run(struct ui_browser *self)
+/*
+ * Here we're updating nr_entries _after_ we started browsing, i.e. we have to
+ * forget about any reference to any entry in the underlying data structure,
+ * that is why we do a SEEK_SET. Think about 'perf top' in the hists browser
+ * after an output_resort and hist decay.
+ */
+void ui_browser__update_nr_entries(struct ui_browser *browser, u32 nr_entries)
+{
+ off_t offset = nr_entries - browser->nr_entries;
+
+ browser->nr_entries = nr_entries;
+
+ if (offset < 0) {
+ if (browser->top_idx < (u64)-offset)
+ offset = -browser->top_idx;
+
+ browser->index += offset;
+ browser->top_idx += offset;
+ }
+
+ browser->top = NULL;
+ browser->seek(browser, browser->top_idx, SEEK_SET);
+}
+
+int ui_browser__run(struct ui_browser *self, int delay_secs)
{
- struct newtExitStruct es;
+ int err, key;
+ struct timeval timeout, *ptimeout = delay_secs ? &timeout : NULL;
- if (ui_browser__refresh(self) < 0)
- return -1;
+ pthread__unblock_sigwinch();
while (1) {
off_t offset;
+ fd_set read_set;
- newtFormRun(self->form, &es);
+ pthread_mutex_lock(&ui__lock);
+ err = __ui_browser__refresh(self);
+ SLsmg_refresh();
+ pthread_mutex_unlock(&ui__lock);
+ if (err < 0)
+ break;
+
+ FD_ZERO(&read_set);
+ FD_SET(0, &read_set);
+
+ if (delay_secs) {
+ timeout.tv_sec = delay_secs;
+ timeout.tv_usec = 0;
+ }
- if (es.reason != NEWT_EXIT_HOTKEY)
+ err = select(1, &read_set, NULL, NULL, ptimeout);
+ if (err > 0 && FD_ISSET(0, &read_set))
+ key = newtGetKey();
+ else if (err == 0)
break;
- switch (es.u.key) {
+ else {
+ pthread_mutex_lock(&ui__lock);
+ SLtt_get_screen_size();
+ SLsmg_reinit_smg();
+ pthread_mutex_unlock(&ui__lock);
+ ui_browser__refresh_dimensions(self);
+ __ui_browser__show_title(self, self->title);
+ ui_helpline__puts(self->helpline);
+ continue;
+ }
+
+ switch (key) {
case NEWT_KEY_DOWN:
if (self->index == self->nr_entries - 1)
break;
@@ -301,10 +383,8 @@ int ui_browser__run(struct ui_browser *self)
self->seek(self, -offset, SEEK_END);
break;
default:
- return es.u.key;
+ return key;
}
- if (ui_browser__refresh(self) < 0)
- return -1;
}
return -1;
}
@@ -316,27 +396,29 @@ unsigned int ui_browser__list_head_refresh(struct ui_browser *self)
int row = 0;
if (self->top == NULL || self->top == self->entries)
- self->top = head->next;
+ self->top = ui_browser__list_head_filter_entries(self, head->next);
pos = self->top;
list_for_each_from(pos, head) {
- ui_browser__gotorc(self, row, 0);
- self->write(self, pos, row);
- if (++row == self->height)
- break;
+ if (!self->filter || !self->filter(self, pos)) {
+ ui_browser__gotorc(self, row, 0);
+ self->write(self, pos, row);
+ if (++row == self->height)
+ break;
+ }
}
return row;
}
-static struct newtPercentTreeColors {
+static struct ui_browser__colors {
const char *topColorFg, *topColorBg;
const char *mediumColorFg, *mediumColorBg;
const char *normalColorFg, *normalColorBg;
const char *selColorFg, *selColorBg;
const char *codeColorFg, *codeColorBg;
-} defaultPercentTreeColors = {
+} ui_browser__default_colors = {
"red", "lightgray",
"green", "lightgray",
"black", "lightgray",
@@ -346,7 +428,7 @@ static struct newtPercentTreeColors {
void ui_browser__init(void)
{
- struct newtPercentTreeColors *c = &defaultPercentTreeColors;
+ struct ui_browser__colors *c = &ui_browser__default_colors;
sltt_set_color(HE_COLORSET_TOP, NULL, c->topColorFg, c->topColorBg);
sltt_set_color(HE_COLORSET_MEDIUM, NULL, c->mediumColorFg, c->mediumColorBg);
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