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