2 * Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
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22 * Except as contained in this notice, the names of the authors or their
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39 struct xcb_extension_t {
52 } xcb_protocol_request_t;
54 enum xcb_send_request_flags_t {
55 XCB_REQUEST_CHECKED = 1 << 0,
56 XCB_REQUEST_RAW = 1 << 1,
57 XCB_REQUEST_DISCARD_REPLY = 1 << 2,
58 XCB_REQUEST_REPLY_FDS = 1 << 3
61 unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vector, const xcb_protocol_request_t *request);
63 void xcb_send_fd(xcb_connection_t *c, int fd);
65 /* xcb_take_socket allows external code to ask XCB for permission to
66 * take over the write side of the socket and send raw data with
67 * xcb_writev. xcb_take_socket provides the sequence number of the last
68 * request XCB sent. The caller of xcb_take_socket must supply a
69 * callback which XCB can call when it wants the write side of the
70 * socket back to make a request. This callback synchronizes with the
71 * external socket owner and flushes any output queues if appropriate.
72 * If you are sending requests which won't cause a reply, please note the
73 * comment for xcb_writev which explains some sequence number wrap issues.
75 int xcb_take_socket(xcb_connection_t *c, void (*return_socket)(void *closure), void *closure, int flags, uint64_t *sent);
77 /* You must own the write-side of the socket (you've called
78 * xcb_take_socket, and haven't returned from return_socket yet) to call
79 * xcb_writev. Also, the iovec must have at least 1 byte of data in it.
80 * You have to make sure that xcb can detect sequence number wraps correctly.
81 * This means that the first request you send after xcb_take_socket must cause a
82 * reply (e.g. just insert a GetInputFocus request). After every (1 << 16) - 1
83 * requests without a reply, you have to insert a request which will cause a
84 * reply. You can again use GetInputFocus for this. You do not have to wait for
85 * any of the GetInputFocus replies, but can instead handle them via
86 * xcb_discard_reply(). */
87 int xcb_writev(xcb_connection_t *c, struct iovec *vector, int count, uint64_t requests);
92 void *xcb_wait_for_reply(xcb_connection_t *c, unsigned int request, xcb_generic_error_t **e);
93 int xcb_poll_for_reply(xcb_connection_t *c, unsigned int request, void **reply, xcb_generic_error_t **error);
94 int *xcb_get_reply_fds(xcb_connection_t *c, void *reply, size_t replylen);
99 int xcb_popcount(uint32_t mask);
100 int xcb_sumof(uint8_t *list, int len);