Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6dd60135 authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo
Browse files

perf ui/tui: Implement header window 



Implement a simple, full-screen header window which shows session header
(metadata) information.  Press 'i' key to display the header window.

Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1388036284-32342-4-git-send-email-namhyung@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent e8e684a5

tools/perf/Makefile.perf

+1 −0
Original line number Diff line number Diff line
@@ -489,6 +489,7 @@ ifndef NO_SLANG 
  LIB_OBJS += $(OUTPUT)ui/browsers/hists.o

  LIB_OBJS += $(OUTPUT)ui/browsers/map.o

  LIB_OBJS += $(OUTPUT)ui/browsers/scripts.o

  LIB_OBJS += $(OUTPUT)ui/browsers/header.o

  LIB_OBJS += $(OUTPUT)ui/tui/setup.o

  LIB_OBJS += $(OUTPUT)ui/tui/util.o

  LIB_OBJS += $(OUTPUT)ui/tui/helpline.o

tools/perf/ui/browser.h

+2 −0
Original line number Diff line number Diff line
@@ -59,6 +59,8 @@ int ui_browser__help_window(struct ui_browser *browser, const char *text); 
bool ui_browser__dialog_yesno(struct ui_browser *browser, const char *text);

int ui_browser__input_window(const char *title, const char *text, char *input,

			     const char *exit_msg, int delay_sec);

struct perf_session_env;

int tui__header_window(struct perf_session_env *env);



void ui_browser__argv_seek(struct ui_browser *browser, off_t offset, int whence);

unsigned int ui_browser__argv_refresh(struct ui_browser *browser);

tools/perf/ui/browsers/header.c

0 → 100644
+127 −0
Original line number Diff line number Diff line 
#include "util/cache.h"

#include "util/debug.h"

#include "ui/browser.h"

#include "ui/ui.h"

#include "ui/util.h"

#include "ui/libslang.h"

#include "util/header.h"

#include "util/session.h"



static void ui_browser__argv_write(struct ui_browser *browser,

				   void *entry, int row)

{

	char **arg = entry;

	char *str = *arg;

	char empty[] = " ";

	bool current_entry = ui_browser__is_current_entry(browser, row);

	unsigned long offset = (unsigned long)browser->priv;



	if (offset >= strlen(str))

		str = empty;

	else

		str = str + offset;



	ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :

						       HE_COLORSET_NORMAL);



	slsmg_write_nstring(str, browser->width);

}



static int list_menu__run(struct ui_browser *menu)

{

	int key;

	unsigned long offset;

	const char help[] =

	"h/?/F1        Show this window\n"

	"UP/DOWN/PGUP\n"

	"PGDN/SPACE\n"

	"LEFT/RIGHT    Navigate\n"

	"q/ESC/CTRL+C  Exit browser";



	if (ui_browser__show(menu, "Header information", "Press 'q' to exit") < 0)

		return -1;



	while (1) {

		key = ui_browser__run(menu, 0);



		switch (key) {

		case K_RIGHT:

			offset = (unsigned long)menu->priv;

			offset += 10;

			menu->priv = (void *)offset;

			continue;

		case K_LEFT:

			offset = (unsigned long)menu->priv;

			if (offset >= 10)

				offset -= 10;

			menu->priv = (void *)offset;

			continue;

		case K_F1:

		case 'h':

		case '?':

			ui_browser__help_window(menu, help);

			continue;

		case K_ESC:

		case 'q':

		case CTRL('c'):

			key = -1;

			break;

		default:

			continue;

		}



		break;

	}



	ui_browser__hide(menu);

	return key;

}



static int ui__list_menu(int argc, char * const argv[])

{

	struct ui_browser menu = {

		.entries    = (void *)argv,

		.refresh    = ui_browser__argv_refresh,

		.seek	    = ui_browser__argv_seek,

		.write	    = ui_browser__argv_write,

		.nr_entries = argc,

	};



	return list_menu__run(&menu);

}



int tui__header_window(struct perf_session_env *env)

{

	int i, argc = 0;

	char **argv;

	struct perf_session *session;

	char *ptr, *pos;

	size_t size;

	FILE *fp = open_memstream(&ptr, &size);



	session = container_of(env, struct perf_session, header.env);

	perf_header__fprintf_info(session, fp, true);

	fclose(fp);



	for (pos = ptr, argc = 0; (pos = strchr(pos, '\n')) != NULL; pos++)

		argc++;



	argv = calloc(argc + 1, sizeof(*argv));

	if (argv == NULL)

		goto out;



	argv[0] = pos = ptr;

	for (i = 1; (pos = strchr(pos, '\n')) != NULL; i++) {

		*pos++ = '\0';

		argv[i] = pos;

	}



	BUG_ON(i != argc + 1);



	ui__list_menu(argc, argv);



out:

	free(argv);

	free(ptr);

	return 0;

}

tools/perf/ui/browsers/hists.c

+6 −0
Original line number Diff line number Diff line
@@ -1417,6 +1417,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, 


	/* help messages are sorted by lexical order of the hotkey */

	const char report_help[] = HIST_BROWSER_HELP_COMMON

	"i             Show header information\n"

	"P             Print histograms to perf.hist.N\n"

	"r             Run available scripts\n"

	"s             Switch to another data file in PWD\n"
@@ -1513,6 +1514,11 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, 
			if (is_report_browser(hbt))

				goto do_data_switch;

			continue;

		case 'i':

			/* env->arch is NULL for live-mode (i.e. perf top) */

			if (env->arch)

				tui__header_window(env);

			continue;

		case K_F1:

		case 'h':

		case '?':