git.sesse.net Git - casparcg/blob - common/os/linux/signal_handlers.cpp

   1 #include "../general_protection_fault.h"
   2
   3 #include "../../except.h"
   4
   5 #include <signal.h>
   6
   7 namespace caspar {
   8
   9 struct floating_point_exception : virtual caspar_exception {};
  10 struct segmentation_fault_exception : virtual caspar_exception {};
  11
  12 void catch_fpe(int signum)
  13 {
  14         CASPAR_THROW_EXCEPTION(floating_point_exception());
  15 }
  16
  17 void catch_segv(int signum)
  18 {
  19         CASPAR_THROW_EXCEPTION(segmentation_fault_exception());
  20 }
  21
  22 void do_install_handlers()
  23 {
  24         signal(SIGFPE, catch_fpe);
  25         signal(SIGSEGV, catch_segv);
  26 }
  27
  28 void install_gpf_handler()
  29 {
  30         ensure_gpf_handler_installed_for_thread();
  31 }
  32
  33 void ensure_gpf_handler_installed_for_thread(
  34                 const char* thread_description)
  35 {
  36         static auto install = []() { do_install_handlers(); return 0; } ();
  37 }
  38
  39 }