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1#include <newt.h>
2#include <signal.h>
3#include <stdbool.h>
4
5#include "../../util/cache.h"
6#include "../../util/debug.h"
7#include "../browser.h"
8#include "../helpline.h"
9#include "../ui.h"
10#include "../util.h"
11#include "../libslang.h"
12#include "../keysyms.h"
13
14pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
15
16static volatile int ui__need_resize;
17
18void ui__refresh_dimensions(bool force)
19{
20 if (force || ui__need_resize) {
21 ui__need_resize = 0;
22 pthread_mutex_lock(&ui__lock);
23 SLtt_get_screen_size();
24 SLsmg_reinit_smg();
25 pthread_mutex_unlock(&ui__lock);
26 }
27}
28
29static void ui__sigwinch(int sig __used)
30{
31 ui__need_resize = 1;
32}
33
34static void ui__setup_sigwinch(void)
35{
36 static bool done;
37
38 if (done)
39 return;
40
41 done = true;
42 pthread__unblock_sigwinch();
43 signal(SIGWINCH, ui__sigwinch);
44}
45
46int ui__getch(int delay_secs)
47{
48 struct timeval timeout, *ptimeout = delay_secs ? &timeout : NULL;
49 fd_set read_set;
50 int err, key;
51
52 ui__setup_sigwinch();
53
54 FD_ZERO(&read_set);
55 FD_SET(0, &read_set);
56
57 if (delay_secs) {
58 timeout.tv_sec = delay_secs;
59 timeout.tv_usec = 0;
60 }
61
62 err = select(1, &read_set, NULL, NULL, ptimeout);
63
64 if (err == 0)
65 return K_TIMER;
66
67 if (err == -1) {
68 if (errno == EINTR)
69 return K_RESIZE;
70 return K_ERROR;
71 }
72
73 key = SLang_getkey();
74 if (key != K_ESC)
75 return key;
76
77 FD_ZERO(&read_set);
78 FD_SET(0, &read_set);
79 timeout.tv_sec = 0;
80 timeout.tv_usec = 20;
81 err = select(1, &read_set, NULL, NULL, &timeout);
82 if (err == 0)
83 return K_ESC;
84
85 SLang_ungetkey(key);
86 return SLkp_getkey();
87}
88
89static void newt_suspend(void *d __used)
90{
91 newtSuspend();
92 raise(SIGTSTP);
93 newtResume();
94}
95
96static void ui__signal(int sig)
97{
98 ui__exit(false);
99 psignal(sig, "perf");
100 exit(0);
101}
102
103int ui__init(void)
104{
105 int err;
106
107 newtInit();
108 err = SLkp_init();
109 if (err < 0) {
110 pr_err("TUI initialization failed.\n");
111 goto out;
112 }
113
114 SLkp_define_keysym((char *)"^(kB)", SL_KEY_UNTAB);
115
116 newtSetSuspendCallback(newt_suspend, NULL);
117 ui_helpline__init();
118 ui_browser__init();
119
120 signal(SIGSEGV, ui__signal);
121 signal(SIGFPE, ui__signal);
122 signal(SIGINT, ui__signal);
123 signal(SIGQUIT, ui__signal);
124 signal(SIGTERM, ui__signal);
125out:
126 return err;
127}
128
129void ui__exit(bool wait_for_ok)
130{
131 if (wait_for_ok)
132 ui__question_window("Fatal Error",
133 ui_helpline__last_msg,
134 "Press any key...", 0);
135
136 SLtt_set_cursor_visibility(1);
137 SLsmg_refresh();
138 SLsmg_reset_smg();
139 SLang_reset_tty();
140}
1#include <errno.h>
2#include <signal.h>
3#include <stdbool.h>
4#include <stdlib.h>
5#include <unistd.h>
6#include <linux/kernel.h>
7#ifdef HAVE_BACKTRACE_SUPPORT
8#include <execinfo.h>
9#endif
10
11#include "../../util/debug.h"
12#include "../../perf.h"
13#include "../browser.h"
14#include "../helpline.h"
15#include "../ui.h"
16#include "../util.h"
17#include "../libslang.h"
18#include "../keysyms.h"
19#include "tui.h"
20
21static volatile int ui__need_resize;
22
23extern struct perf_error_ops perf_tui_eops;
24extern bool tui_helpline__set;
25
26extern void hist_browser__init_hpp(void);
27
28void ui__refresh_dimensions(bool force)
29{
30 if (force || ui__need_resize) {
31 ui__need_resize = 0;
32 mutex_lock(&ui__lock);
33 SLtt_get_screen_size();
34 SLsmg_reinit_smg();
35 mutex_unlock(&ui__lock);
36 }
37}
38
39static void ui__sigwinch(int sig __maybe_unused)
40{
41 ui__need_resize = 1;
42}
43
44static void ui__setup_sigwinch(void)
45{
46 static bool done;
47
48 if (done)
49 return;
50
51 done = true;
52 pthread__unblock_sigwinch();
53 signal(SIGWINCH, ui__sigwinch);
54}
55
56int ui__getch(int delay_secs)
57{
58 struct timeval timeout, *ptimeout = delay_secs ? &timeout : NULL;
59 fd_set read_set;
60 int err, key;
61
62 ui__setup_sigwinch();
63
64 FD_ZERO(&read_set);
65 FD_SET(0, &read_set);
66
67 if (delay_secs) {
68 timeout.tv_sec = delay_secs;
69 timeout.tv_usec = 0;
70 }
71
72 err = select(1, &read_set, NULL, NULL, ptimeout);
73
74 if (err == 0)
75 return K_TIMER;
76
77 if (err == -1) {
78 if (errno == EINTR)
79 return K_RESIZE;
80 return K_ERROR;
81 }
82
83 key = SLang_getkey();
84 if (key != K_ESC)
85 return key;
86
87 FD_ZERO(&read_set);
88 FD_SET(0, &read_set);
89 timeout.tv_sec = 0;
90 timeout.tv_usec = 20;
91 err = select(1, &read_set, NULL, NULL, &timeout);
92 if (err == 0)
93 return K_ESC;
94
95 SLang_ungetkey(key);
96 return SLkp_getkey();
97}
98
99#ifdef HAVE_BACKTRACE_SUPPORT
100static void ui__signal_backtrace(int sig)
101{
102 void *stackdump[32];
103 size_t size;
104
105 ui__exit(false);
106 psignal(sig, "perf");
107
108 printf("-------- backtrace --------\n");
109 size = backtrace(stackdump, ARRAY_SIZE(stackdump));
110 backtrace_symbols_fd(stackdump, size, STDOUT_FILENO);
111
112 exit(0);
113}
114#else
115# define ui__signal_backtrace ui__signal
116#endif
117
118static void ui__signal(int sig)
119{
120 ui__exit(false);
121 psignal(sig, "perf");
122 exit(0);
123}
124
125int ui__init(void)
126{
127 int err;
128
129 SLutf8_enable(-1);
130 SLtt_get_terminfo();
131 SLtt_get_screen_size();
132
133 err = SLsmg_init_smg();
134 if (err < 0)
135 goto out;
136 err = SLang_init_tty(-1, 0, 0);
137 if (err < 0)
138 goto out;
139
140 err = SLkp_init();
141 if (err < 0) {
142 pr_err("TUI initialization failed.\n");
143 goto out;
144 }
145
146 SLkp_define_keysym((char *)"^(kB)", SL_KEY_UNTAB);
147
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);
153
154 perf_error__register(&perf_tui_eops);
155
156 ui_helpline__init();
157 ui_browser__init();
158 tui_progress__init();
159
160 hist_browser__init_hpp();
161out:
162 return err;
163}
164
165void ui__exit(bool wait_for_ok)
166{
167 if (wait_for_ok && tui_helpline__set)
168 ui__question_window("Fatal Error",
169 ui_helpline__last_msg,
170 "Press any key...", 0);
171
172 SLtt_set_cursor_visibility(1);
173 if (mutex_trylock(&ui__lock)) {
174 SLsmg_refresh();
175 SLsmg_reset_smg();
176 mutex_unlock(&ui__lock);
177 }
178 SLang_reset_tty();
179 perf_error__unregister(&perf_tui_eops);
180}