core/dbus_wrap.cpp

   1
   2 #include "config.h"
   3
   4 #include "dbus_wrap.h"
   5
   6 #ifdef HAVE_DYNLOAD
   7
   8 #include <mutex>
   9 #include <type_traits>
  10
  11 #include "logging.h"
  12
  13
  14 void PrepareDBus()
  15 {
  16     const char *libname{"libdbus-1.so.3"};
  17
  18     dbus_handle = LoadLib(libname);
  19     if(!dbus_handle)
  20     {
  21         WARN("Failed to load %s\n", libname);
  22         return;
  23     }
  24
  25     auto load_func = [](auto &f, const char *name) -> void
  26     { f = reinterpret_cast<std::remove_reference_t<decltype(f)>>(GetSymbol(dbus_handle, name)); };
  27 #define LOAD_FUNC(x) do {                         \
  28     load_func(p##x, #x);                          \
  29     if(!p##x)                                     \
  30     {                                             \
  31         WARN("Failed to load function %s\n", #x); \
  32         CloseLib(dbus_handle);                    \
  33         dbus_handle = nullptr;                    \
  34         return;                                   \
  35     }                                             \
  36 } while(0);
  37
  38     DBUS_FUNCTIONS(LOAD_FUNC)
  39
  40 #undef LOAD_FUNC
  41 }
  42 #endif