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