103 lines
3.8 KiB
C
103 lines
3.8 KiB
C
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/*
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* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the names of the authors or their
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* institutions shall not be used in advertising or otherwise to promote the
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* sale, use or other dealings in this Software without prior written
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* authorization from the authors.
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*/
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#ifndef __XCBEXT_H
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#define __XCBEXT_H
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#include "xcb.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* xcb_ext.c */
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struct xcb_extension_t {
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const char *name;
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int global_id;
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};
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/* xcb_out.c */
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typedef struct {
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size_t count;
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xcb_extension_t *ext;
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uint8_t opcode;
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uint8_t isvoid;
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} xcb_protocol_request_t;
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enum xcb_send_request_flags_t {
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XCB_REQUEST_CHECKED = 1 << 0,
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XCB_REQUEST_RAW = 1 << 1,
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XCB_REQUEST_DISCARD_REPLY = 1 << 2
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};
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unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vector, const xcb_protocol_request_t *request);
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/* xcb_take_socket allows external code to ask XCB for permission to
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* take over the write side of the socket and send raw data with
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* xcb_writev. xcb_take_socket provides the sequence number of the last
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* request XCB sent. The caller of xcb_take_socket must supply a
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* callback which XCB can call when it wants the write side of the
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* socket back to make a request. This callback synchronizes with the
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* external socket owner and flushes any output queues if appropriate.
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* If you are sending requests which won't cause a reply, please note the
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* comment for xcb_writev which explains some sequence number wrap issues.
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* */
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int xcb_take_socket(xcb_connection_t *c, void (*return_socket)(void *closure), void *closure, int flags, uint64_t *sent);
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/* You must own the write-side of the socket (you've called
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* xcb_take_socket, and haven't returned from return_socket yet) to call
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* xcb_writev. Also, the iovec must have at least 1 byte of data in it.
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* You have to make sure that xcb can detect sequence number wraps correctly.
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* This means that the first request you send after xcb_take_socket must cause a
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* reply (e.g. just insert a GetInputFocus request). After every (1 << 16) - 1
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* requests without a reply, you have to insert a request which will cause a
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* reply. You can again use GetInputFocus for this. You do not have to wait for
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* any of the GetInputFocus replies, but can instead handle them via
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* xcb_discard_reply(). */
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int xcb_writev(xcb_connection_t *c, struct iovec *vector, int count, uint64_t requests);
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/* xcb_in.c */
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void *xcb_wait_for_reply(xcb_connection_t *c, unsigned int request, xcb_generic_error_t **e);
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int xcb_poll_for_reply(xcb_connection_t *c, unsigned int request, void **reply, xcb_generic_error_t **error);
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/* xcb_util.c */
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int xcb_popcount(uint32_t mask);
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int xcb_sumof(uint8_t *list, int len);
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#ifdef __cplusplus
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}
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#endif
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#endif
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