src/kits/print/PrintTransportAddOn.cpp

   1 #include "PrintTransportAddOn.h"
   2
   3 // We don't support multiple instances of the same transport add-on
   4 static BDataIO* gTransport = NULL;
   5
   6 extern "C" _EXPORT BDataIO *init_transport(BMessage *msg)
   7 {
   8         if (msg == NULL || gTransport != NULL)
   9                 return NULL;
  10
  11         const char *spool_path = msg->FindString("printer_file");
  12
  13         if (spool_path && *spool_path != '\0') {
  14                 BDirectory printer(spool_path);
  15
  16                 if (printer.InitCheck() == B_OK) {
  17                         gTransport = instantiate_transport(&printer, msg);
  18                         return gTransport;
  19                 };
  20         };
  21
  22         return NULL;
  23 }
  24
  25 extern "C" _EXPORT void exit_transport()
  26 {
  27         if (gTransport) {
  28                 delete gTransport;
  29                 gTransport = NULL;
  30         }
  31 }
  32