forked from Mirrors/wine-wine
143 lines
4.5 KiB
C
143 lines
4.5 KiB
C
/*
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* Definitions for the client side of the Wine server communication
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*
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* Copyright (C) 1998 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef __WINE_WINE_SERVER_H
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#define __WINE_WINE_SERVER_H
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#include <stdarg.h>
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#include <windef.h>
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#include <winbase.h>
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#include <winternl.h>
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#include <wine/server_protocol.h>
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/* client communication functions */
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struct __server_iovec
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{
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const void *ptr;
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data_size_t size;
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};
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#define __SERVER_MAX_DATA 5
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struct __server_request_info
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{
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union
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{
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union generic_request req; /* request structure */
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union generic_reply reply; /* reply structure */
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} u;
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unsigned int data_count; /* count of request data pointers */
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void *reply_data; /* reply data pointer */
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struct __server_iovec data[__SERVER_MAX_DATA]; /* request variable size data */
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};
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extern unsigned int CDECL wine_server_call( void *req_ptr );
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extern void CDECL wine_server_send_fd( int fd );
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extern int CDECL wine_server_fd_to_handle( int fd, unsigned int access, unsigned int attributes, HANDLE *handle );
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extern int CDECL wine_server_handle_to_fd( HANDLE handle, unsigned int access, int *unix_fd, unsigned int *options );
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extern void CDECL wine_server_release_fd( HANDLE handle, int unix_fd );
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/* do a server call and set the last error code */
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static inline unsigned int wine_server_call_err( void *req_ptr )
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{
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unsigned int res = wine_server_call( req_ptr );
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if (res) SetLastError( RtlNtStatusToDosError(res) );
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return res;
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}
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/* get the size of the variable part of the returned reply */
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static inline data_size_t wine_server_reply_size( const void *reply )
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{
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return ((const struct reply_header *)reply)->reply_size;
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}
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/* add some data to be sent along with the request */
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static inline void wine_server_add_data( void *req_ptr, const void *ptr, data_size_t size )
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{
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struct __server_request_info * const req = req_ptr;
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if (size)
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{
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req->data[req->data_count].ptr = ptr;
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req->data[req->data_count++].size = size;
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req->u.req.request_header.request_size += size;
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}
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}
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/* set the pointer and max size for the reply var data */
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static inline void wine_server_set_reply( void *req_ptr, void *ptr, data_size_t max_size )
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{
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struct __server_request_info * const req = req_ptr;
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req->reply_data = ptr;
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req->u.req.request_header.reply_size = max_size;
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}
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/* convert an object handle to a server handle */
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static inline obj_handle_t wine_server_obj_handle( HANDLE handle )
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{
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if ((int)(INT_PTR)handle != (INT_PTR)handle) return 0xfffffff0; /* some invalid handle */
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return (INT_PTR)handle;
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}
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/* convert a user handle to a server handle */
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static inline user_handle_t wine_server_user_handle( HANDLE handle )
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{
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return (UINT_PTR)handle;
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}
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/* convert a server handle to a generic handle */
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static inline HANDLE wine_server_ptr_handle( obj_handle_t handle )
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{
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return (HANDLE)(INT_PTR)(int)handle;
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}
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/* convert a client pointer to a server client_ptr_t */
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static inline client_ptr_t wine_server_client_ptr( const void *ptr )
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{
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return (client_ptr_t)(ULONG_PTR)ptr;
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}
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/* convert a server client_ptr_t to a real pointer */
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static inline void *wine_server_get_ptr( client_ptr_t ptr )
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{
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return (void *)(ULONG_PTR)ptr;
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}
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/* macros for server requests */
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#define SERVER_START_REQ(type) \
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do { \
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struct __server_request_info __req; \
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struct type##_request * const req = &__req.u.req.type##_request; \
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const struct type##_reply * const reply = &__req.u.reply.type##_reply; \
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memset( &__req.u.req, 0, sizeof(__req.u.req) ); \
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__req.u.req.request_header.req = REQ_##type; \
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__req.data_count = 0; \
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(void)reply; \
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do
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#define SERVER_END_REQ \
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while(0); \
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} while(0)
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#endif /* __WINE_WINE_SERVER_H */
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