XCB 1.7
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00001 /* 00002 * Copyright (C) 2001-2004 Bart Massey and Jamey Sharp. 00003 * All Rights Reserved. 00004 * 00005 * Permission is hereby granted, free of charge, to any person obtaining a 00006 * copy of this software and associated documentation files (the "Software"), 00007 * to deal in the Software without restriction, including without limitation 00008 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 00009 * and/or sell copies of the Software, and to permit persons to whom the 00010 * Software is furnished to do so, subject to the following conditions: 00011 * 00012 * The above copyright notice and this permission notice shall be included in 00013 * all copies or substantial portions of the Software. 00014 * 00015 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00016 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00017 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00018 * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 00019 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 00020 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00021 * 00022 * Except as contained in this notice, the names of the authors or their 00023 * institutions shall not be used in advertising or otherwise to promote the 00024 * sale, use or other dealings in this Software without prior written 00025 * authorization from the authors. 00026 */ 00027 00028 #ifndef __XCBEXT_H 00029 #define __XCBEXT_H 00030 00031 #include "xcb.h" 00032 00033 #ifdef __cplusplus 00034 extern "C" { 00035 #endif 00036 00037 /* xcb_ext.c */ 00038 00039 struct xcb_extension_t { 00040 const char *name; 00041 int global_id; 00042 }; 00043 00044 00045 /* xcb_out.c */ 00046 00047 typedef struct { 00048 size_t count; 00049 xcb_extension_t *ext; 00050 uint8_t opcode; 00051 uint8_t isvoid; 00052 } xcb_protocol_request_t; 00053 00054 enum xcb_send_request_flags_t { 00055 XCB_REQUEST_CHECKED = 1 << 0, 00056 XCB_REQUEST_RAW = 1 << 1, 00057 XCB_REQUEST_DISCARD_REPLY = 1 << 2 00058 }; 00059 00060 unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vector, const xcb_protocol_request_t *request); 00061 00062 /* xcb_take_socket allows external code to ask XCB for permission to 00063 * take over the write side of the socket and send raw data with 00064 * xcb_writev. xcb_take_socket provides the sequence number of the last 00065 * request XCB sent. The caller of xcb_take_socket must supply a 00066 * callback which XCB can call when it wants the write side of the 00067 * socket back to make a request. This callback synchronizes with the 00068 * external socket owner, flushes any output queues if appropriate, and 00069 * then returns the sequence number of the last request sent over the 00070 * socket. */ 00071 int xcb_take_socket(xcb_connection_t *c, void (*return_socket)(void *closure), void *closure, int flags, uint64_t *sent); 00072 00073 /* You must own the write-side of the socket (you've called 00074 * xcb_take_socket, and haven't returned from return_socket yet) to call 00075 * xcb_writev. Also, the iovec must have at least 1 byte of data in it. 00076 * */ 00077 int xcb_writev(xcb_connection_t *c, struct iovec *vector, int count, uint64_t requests); 00078 00079 00080 /* xcb_in.c */ 00081 00082 void *xcb_wait_for_reply(xcb_connection_t *c, unsigned int request, xcb_generic_error_t **e); 00083 int xcb_poll_for_reply(xcb_connection_t *c, unsigned int request, void **reply, xcb_generic_error_t **error); 00084 00085 00086 /* xcb_util.c */ 00087 00088 int xcb_popcount(uint32_t mask); 00089 00090 #ifdef __cplusplus 00091 } 00092 #endif 00093 00094 #endif