text: /*
   * Definitions for the client side of the Wine server communication
   *
   * Copyright (C) 1998 Alexandre Julliard
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  #ifndef __WINE_WINE_SERVER_H
  #define __WINE_WINE_SERVER_H
  
  #include <stdarg.h>
  #include <windef.h>
  #include <winbase.h>
  #include <winreg.h>
  #include <winternl.h>
  #include <wine/server_protocol.h>
  
  /* client communication functions */
  
  struct __server_iovec
  {
      const void  *ptr;
      unsigned int size;
  };
  
  #define __SERVER_MAX_DATA 5
  
  struct __server_request_info
  {
      union
      {
          union generic_request req;    /* request structure */
          union generic_reply   reply;  /* reply structure */
      } u;
      unsigned int          data_count; /* count of request data pointers */
      void                 *reply_data; /* reply data pointer */
      struct __server_iovec data[__SERVER_MAX_DATA];  /* request variable size data */
  };
  
  extern unsigned int wine_server_call( void *req_ptr );
  extern void wine_server_send_fd( int fd );
  extern int wine_server_fd_to_handle( int fd, unsigned int access, int inherit, obj_handle_t *handle );
  extern int wine_server_handle_to_fd( obj_handle_t handle, unsigned int access, int *unix_fd,
                                       enum fd_type *type, int *flags );
  extern void wine_server_release_fd( obj_handle_t handle, int unix_fd );
  
  /* do a server call and set the last error code */
  inline static unsigned int wine_server_call_err( void *req_ptr )
  {
      unsigned int res = wine_server_call( req_ptr );
      if (res) SetLastError( RtlNtStatusToDosError(res) );
      return res;
  }
  
  /* get the size of the variable part of the returned reply */
  inline static size_t wine_server_reply_size( const void *reply )
  {
      return ((struct reply_header *)reply)->reply_size;
  }
  
  /* add some data to be sent along with the request */
  inline static void wine_server_add_data( void *req_ptr, const void *ptr, unsigned int size )
  {
      struct __server_request_info * const req = req_ptr;
      if (size)
      {
          req->data[req->data_count].ptr = ptr;
          req->data[req->data_count++].size = size;
          req->u.req.request_header.request_size += size;
      }
  }
  
  /* set the pointer and max size for the reply var data */
  inline static void wine_server_set_reply( void *req_ptr, void *ptr, unsigned int max_size )
  {
      struct __server_request_info * const req = req_ptr;
      req->reply_data = ptr;
      req->u.req.request_header.reply_size = max_size;
  }
  
  
  /* macros for server requests */
  
  #define SERVER_START_REQ(type) \
      do { \
          struct __server_request_info __req; \
          struct type##_request * const req = &__req.u.req.type##_request; \
          const struct type##_reply * const reply = &__req.u.reply.type##_reply; \
          memset( &__req.u.req, 0, sizeof(__req.u.req) ); \
          __req.u.req.request_header.req = REQ_##type; \
          __req.data_count = 0; \
          (void)reply; \
          do
  
  #define SERVER_END_REQ \
          while(0); \
      } while(0)
  
  
  #endif  /* __WINE_WINE_SERVER_H */
  