native_client_sdk/src/libraries/ppapi_simple/ps_main.h

   1 /* Copyright 2012 The Chromium Authors. All rights reserved.
   2  * Use of this source code is governed by a BSD-style license that can be
   3  * found in the LICENSE file. */
   4
   5 #ifndef PPAPI_SIMPLE_PS_MAIN_H_
   6 #define PPAPI_SIMPLE_PS_MAIN_H_
   7
   8 #include "ppapi_simple/ps.h"
   9 #include "ppapi_simple/ps_event.h"
  10
  11 EXTERN_C_BEGIN
  12
  13 typedef int (*PSMainFunc_t)(int argc, char *argv[]);
  14
  15 /**
  16  * PSUserMainGet
  17  *
  18  * Prototype for the user provided function which retrieves the user's main
  19  * function.
  20  * This is normally defined using the PPAPI_SIMPLE_REGISTER_MAIN macro.
  21  */
  22 PSMainFunc_t PSUserMainGet();
  23
  24 /**
  25  * PPAPI_SIMPLE_REGISTER_MAIN
  26  *
  27  * Constructs a PSInstance object and configures it to use call the provided
  28  * 'main' function on its own thread once initialization is complete.
  29  *
  30  * The ps_entrypoint_*.o and ps_main.o objects will not be linked by default,
  31  * so we force them to be linked here.
  32  */
  33 #define PPAPI_SIMPLE_REGISTER_MAIN(main_func) \
  34   EXTERN_C_BEGIN                              \
  35   FORCE_LINK_THAT(ps_entry)                   \
  36   FORCE_LINK_THAT(ps_main)                    \
  37   EXTERN_C_END                                \
  38   PSMainFunc_t PSUserMainGet() { return main_func; }
  39
  40 EXTERN_C_END
  41
  42 #endif  /* PPAPI_SIMPLE_PS_MAIN_H_ */