projects/linux·blob master · refs

141 lines · 2.5 KiB

1// SPDX-License-Identifier: GPL-2.0
2#include <dlfcn.h>
3#include <signal.h>
4#include <unistd.h>
5
6#include <subcmd/pager.h>
7#include "../util/debug.h"
8#include "../util/hist.h"
9#include "ui.h"
10
11struct mutex ui__lock;
12void *perf_gtk_handle;
13int use_browser = -1;
14
15#define PERF_GTK_DSO "libperf-gtk.so"
16
17#ifdef HAVE_GTK2_SUPPORT
18
19static int setup_gtk_browser(void)
20{
21 int (*perf_ui_init)(void);
22
23 if (perf_gtk_handle)
24 return 0;
25
26 perf_gtk_handle = dlopen(PERF_GTK_DSO, RTLD_LAZY);
27 if (perf_gtk_handle == NULL) {
28 char buf[PATH_MAX];
29 scnprintf(buf, sizeof(buf), "%s/%s", LIBDIR, PERF_GTK_DSO);
30 perf_gtk_handle = dlopen(buf, RTLD_LAZY);
31 }
32 if (perf_gtk_handle == NULL)
33 return -1;
34
35 perf_ui_init = dlsym(perf_gtk_handle, "perf_gtk__init");
36 if (perf_ui_init == NULL)
37 goto out_close;
38
39 if (perf_ui_init() == 0)
40 return 0;
41
42out_close:
43 dlclose(perf_gtk_handle);
44 return -1;
45}
46
47static void exit_gtk_browser(bool wait_for_ok)
48{
49 void (*perf_ui_exit)(bool);
50
51 if (perf_gtk_handle == NULL)
52 return;
53
54 perf_ui_exit = dlsym(perf_gtk_handle, "perf_gtk__exit");
55 if (perf_ui_exit == NULL)
56 goto out_close;
57
58 perf_ui_exit(wait_for_ok);
59
60out_close:
61 dlclose(perf_gtk_handle);
62
63 perf_gtk_handle = NULL;
64}
65#else
66static inline int setup_gtk_browser(void) { return -1; }
67static inline void exit_gtk_browser(bool wait_for_ok __maybe_unused) {}
68#endif
69
70int stdio__config_color(const struct option *opt __maybe_unused,
71 const char *mode, int unset __maybe_unused)
72{
73 perf_use_color_default = perf_config_colorbool("color.ui", mode, -1);
74 return 0;
75}
76
77void setup_browser(bool fallback_to_pager)
78{
79 mutex_init(&ui__lock);
80 if (use_browser < 2 && (!isatty(1) || dump_trace))
81 use_browser = 0;
82
83 /* default to TUI */
84 if (use_browser < 0)
85 use_browser = 1;
86
87 switch (use_browser) {
88 case 2:
89 if (setup_gtk_browser() == 0)
90 break;
91 printf("GTK browser requested but could not find %s\n",
92 PERF_GTK_DSO);
93 sleep(1);
94 use_browser = 1;
95 /* fall through */
96 case 1:
97 if (ui__init() == 0)
98 break;
99 /* fall through */
100 default:
101 use_browser = 0;
102 if (fallback_to_pager)
103 setup_pager();
104 break;
105 }
106}
107
108void exit_browser(bool wait_for_ok)
109{
110 switch (use_browser) {
111 case 2:
112 exit_gtk_browser(wait_for_ok);
113 break;
114
115 case 1:
116 ui__exit(wait_for_ok);
117 break;
118
119 default:
120 break;
121 }
122 mutex_destroy(&ui__lock);
123}
124
125void pthread__block_sigwinch(void)
126{
127 sigset_t set;
128
129 sigemptyset(&set);
130 sigaddset(&set, SIGWINCH);
131 pthread_sigmask(SIG_BLOCK, &set, NULL);
132}
133
134void pthread__unblock_sigwinch(void)
135{
136 sigset_t set;
137
138 sigemptyset(&set);
139 sigaddset(&set, SIGWINCH);
140 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
141}