1 // SPDX-License-Identifier: GPL-2.0
5 #include <linux/kernel.h>
6 #ifdef HAVE_BACKTRACE_SUPPORT
10 #include "../../util/cache.h"
11 #include "../../util/debug.h"
12 #include "../../util/util.h"
13 #include "../browser.h"
14 #include "../helpline.h"
17 #include "../libslang.h"
18 #include "../keysyms.h"
21 static volatile int ui__need_resize;
23 extern struct perf_error_ops perf_tui_eops;
24 extern bool tui_helpline__set;
26 extern void hist_browser__init_hpp(void);
28 void ui__refresh_dimensions(bool force)
30 if (force || ui__need_resize) {
32 pthread_mutex_lock(&ui__lock);
33 SLtt_get_screen_size();
35 pthread_mutex_unlock(&ui__lock);
39 static void ui__sigwinch(int sig __maybe_unused)
44 static void ui__setup_sigwinch(void)
52 pthread__unblock_sigwinch();
53 signal(SIGWINCH, ui__sigwinch);
56 int ui__getch(int delay_secs)
58 struct timeval timeout, *ptimeout = delay_secs ? &timeout : NULL;
68 timeout.tv_sec = delay_secs;
72 err = select(1, &read_set, NULL, NULL, ptimeout);
91 err = select(1, &read_set, NULL, NULL, &timeout);
99 #ifdef HAVE_BACKTRACE_SUPPORT
100 static void ui__signal_backtrace(int sig)
106 psignal(sig, "perf");
108 printf("-------- backtrace --------\n");
109 size = backtrace(stackdump, ARRAY_SIZE(stackdump));
110 backtrace_symbols_fd(stackdump, size, STDOUT_FILENO);
115 # define ui__signal_backtrace ui__signal
118 static void ui__signal(int sig)
121 psignal(sig, "perf");
131 SLtt_get_screen_size();
133 err = SLsmg_init_smg();
136 err = SLang_init_tty(-1, 0, 0);
142 pr_err("TUI initialization failed.\n");
146 SLkp_define_keysym((char *)"^(kB)", SL_KEY_UNTAB);
148 signal(SIGSEGV, ui__signal_backtrace);
149 signal(SIGFPE, ui__signal_backtrace);
150 signal(SIGINT, ui__signal);
151 signal(SIGQUIT, ui__signal);
152 signal(SIGTERM, ui__signal);
154 perf_error__register(&perf_tui_eops);
158 tui_progress__init();
160 hist_browser__init_hpp();
165 void ui__exit(bool wait_for_ok)
167 if (wait_for_ok && tui_helpline__set)
168 ui__question_window("Fatal Error",
169 ui_helpline__last_msg,
170 "Press any key...", 0);
172 SLtt_set_cursor_visibility(1);
177 perf_error__unregister(&perf_tui_eops);