tools/perf/ui/setup.c

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