cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

header.c (2608B)

      1// SPDX-License-Identifier: GPL-2.0
      2#include "ui/browser.h"
      3#include "ui/keysyms.h"
      4#include "ui/ui.h"
      5#include "ui/util.h"
      6#include "ui/libslang.h"
      7#include "util/header.h"
      8#include "util/session.h"
      9
     10#include <sys/ttydefaults.h>
     11
     12static void ui_browser__argv_write(struct ui_browser *browser,
     13				   void *entry, int row)
     14{
     15	char **arg = entry;
     16	char *str = *arg;
     17	char empty[] = " ";
     18	bool current_entry = ui_browser__is_current_entry(browser, row);
     19	unsigned long offset = (unsigned long)browser->priv;
     20
     21	if (offset >= strlen(str))
     22		str = empty;
     23	else
     24		str = str + offset;
     25
     26	ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
     27						       HE_COLORSET_NORMAL);
     28
     29	ui_browser__write_nstring(browser, str, browser->width);
     30}
     31
     32static int list_menu__run(struct ui_browser *menu)
     33{
     34	int key;
     35	unsigned long offset;
     36	static const char help[] =
     37	"h/?/F1        Show this window\n"
     38	"UP/DOWN/PGUP\n"
     39	"PGDN/SPACE\n"
     40	"LEFT/RIGHT    Navigate\n"
     41	"q/ESC/CTRL+C  Exit browser";
     42
     43	if (ui_browser__show(menu, "Header information", "Press 'q' to exit") < 0)
     44		return -1;
     45
     46	while (1) {
     47		key = ui_browser__run(menu, 0);
     48
     49		switch (key) {
     50		case K_RIGHT:
     51			offset = (unsigned long)menu->priv;
     52			offset += 10;
     53			menu->priv = (void *)offset;
     54			continue;
     55		case K_LEFT:
     56			offset = (unsigned long)menu->priv;
     57			if (offset >= 10)
     58				offset -= 10;
     59			menu->priv = (void *)offset;
     60			continue;
     61		case K_F1:
     62		case 'h':
     63		case '?':
     64			ui_browser__help_window(menu, help);
     65			continue;
     66		case K_ESC:
     67		case 'q':
     68		case CTRL('c'):
     69			key = -1;
     70			break;
     71		default:
     72			continue;
     73		}
     74
     75		break;
     76	}
     77
     78	ui_browser__hide(menu);
     79	return key;
     80}
     81
     82static int ui__list_menu(int argc, char * const argv[])
     83{
     84	struct ui_browser menu = {
     85		.entries    = (void *)argv,
     86		.refresh    = ui_browser__argv_refresh,
     87		.seek	    = ui_browser__argv_seek,
     88		.write	    = ui_browser__argv_write,
     89		.nr_entries = argc,
     90	};
     91
     92	return list_menu__run(&menu);
     93}
     94
     95int tui__header_window(struct perf_env *env)
     96{
     97	int i, argc = 0;
     98	char **argv;
     99	struct perf_session *session;
    100	char *ptr, *pos;
    101	size_t size;
    102	FILE *fp = open_memstream(&ptr, &size);
    103
    104	session = container_of(env, struct perf_session, header.env);
    105	perf_header__fprintf_info(session, fp, true);
    106	fclose(fp);
    107
    108	for (pos = ptr, argc = 0; (pos = strchr(pos, '\n')) != NULL; pos++)
    109		argc++;
    110
    111	argv = calloc(argc + 1, sizeof(*argv));
    112	if (argv == NULL)
    113		goto out;
    114
    115	argv[0] = pos = ptr;
    116	for (i = 1; (pos = strchr(pos, '\n')) != NULL; i++) {
    117		*pos++ = '\0';
    118		argv[i] = pos;
    119	}
    120
    121	BUG_ON(i != argc + 1);
    122
    123	ui__list_menu(argc, argv);
    124
    125out:
    126	free(argv);
    127	free(ptr);
    128	return 0;
    129}