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# xcbint.h

    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 __XCBINT_H
    00029 #define __XCBINT_H
    00030
    00031 #include "bigreq.h"
    00032
    00033 #ifdef HAVE_CONFIG_H
    00034 #include "config.h"
    00035 #endif
    00036
    00037 #ifdef GCC_HAS_VISIBILITY
    00038 #pragma GCC visibility push(hidden)
    00039 #endif
    00040
    00041 enum workarounds {
    00042     WORKAROUND_NONE,
    00043     WORKAROUND_GLX_GET_FB_CONFIGS_BUG
    00044 };
    00045
    00046 enum lazy_reply_tag
    00047 {
    00048     LAZY_NONE = 0,
    00049     LAZY_COOKIE,
    00050     LAZY_FORCED
    00051 };
    00052
    00053 #define XCB_PAD(i) (-(i) & 3)
    00054
    00055 #define XCB_SEQUENCE_COMPARE(a,op,b)    ((int) ((a) - (b)) op 0)
    00056
    00057 /* xcb_list.c */
    00058
    00059 typedef void (*xcb_list_free_func_t)(void *);
    00060
    00061 typedef struct _xcb_map _xcb_map;
    00062
    00063 _xcb_map *_xcb_map_new(void);
    00064 void _xcb_map_delete(_xcb_map *q, xcb_list_free_func_t do_free);
    00065 int _xcb_map_put(_xcb_map *q, unsigned int key, void *data);
    00066 void *_xcb_map_remove(_xcb_map *q, unsigned int key);
    00067
    00068
    00069 /* xcb_out.c */
    00070
    00071 typedef struct _xcb_out {
    00072     pthread_cond_t cond;
    00073     int writing;
    00074
    00075     char queue[4096];
    00076     int queue_len;
    00077
    00078     unsigned int request;
    00079     unsigned int request_written;
    00080
    00081     pthread_mutex_t reqlenlock;
    00082     enum lazy_reply_tag maximum_request_length_tag;
    00083     union {
    00084         xcb_big_requests_enable_cookie_t cookie;
    00085         uint32_t value;
    00086     } maximum_request_length;
    00087 } _xcb_out;
    00088
    00089 int _xcb_out_init(_xcb_out *out);
    00090 void _xcb_out_destroy(_xcb_out *out);
    00091
    00092 int _xcb_out_send(xcb_connection_t *c, struct iovec **vector, int *count);
    00093 int _xcb_out_flush_to(xcb_connection_t *c, unsigned int request);
    00094
    00095
    00096 /* xcb_in.c */
    00097
    00098 typedef struct _xcb_in {
    00099     pthread_cond_t event_cond;
    00100     int reading;
    00101
    00102     char queue[4096];
    00103     int queue_len;
    00104
    00105     unsigned int request_expected;
    00106     unsigned int request_read;
    00107     unsigned int request_completed;
    00108     struct reply_list *current_reply;
    00109     struct reply_list **current_reply_tail;
    00110
    00111     _xcb_map *replies;
    00112     struct event_list *events;
    00113     struct event_list **events_tail;
    00114     struct reader_list *readers;
    00115
    00116     struct pending_reply *pending_replies;
    00117     struct pending_reply **pending_replies_tail;
    00118 } _xcb_in;
    00119
    00120 int _xcb_in_init(_xcb_in *in);
    00121 void _xcb_in_destroy(_xcb_in *in);
    00122
    00123 int _xcb_in_expect_reply(xcb_connection_t *c, unsigned int request, enum workarounds workaround, int flags);
    00124
    00125 int _xcb_in_read(xcb_connection_t *c);
    00126 int _xcb_in_read_block(xcb_connection_t *c, void *buf, int nread);
    00127
    00128
    00129 /* xcb_xlib.c */
    00130
    00131 typedef struct _xcb_xlib {
    00132     int lock;
    00133     pthread_t thread;
    00134     pthread_cond_t cond;
    00135 } _xcb_xlib;
    00136
    00137
    00138 /* xcb_xid.c */
    00139
    00140 typedef struct _xcb_xid {
    00141     pthread_mutex_t lock;
    00142     uint32_t last;
    00143     uint32_t base;
    00144     uint32_t max;
    00145     uint32_t inc;
    00146 } _xcb_xid;
    00147
    00148 int _xcb_xid_init(xcb_connection_t *c);
    00149 void _xcb_xid_destroy(xcb_connection_t *c);
    00150
    00151
    00152 /* xcb_ext.c */
    00153
    00154 typedef struct _xcb_ext {
    00155     pthread_mutex_t lock;
    00156     struct lazyreply *extensions;
    00157     int extensions_size;
    00158 } _xcb_ext;
    00159
    00160 int _xcb_ext_init(xcb_connection_t *c);
    00161 void _xcb_ext_destroy(xcb_connection_t *c);
    00162
    00163
    00164 /* xcb_conn.c */
    00165
    00166 struct xcb_connection_t {
    00167     int has_error;
    00168
    00169     /* constant data */
    00170     xcb_setup_t *setup;
    00171     int fd;
    00172
    00173     /* I/O data */
    00174     pthread_mutex_t iolock;
    00175     _xcb_xlib xlib;
    00176     _xcb_in in;
    00177     _xcb_out out;
    00178
    00179     /* misc data */
    00180     _xcb_ext ext;
    00181     _xcb_xid xid;
    00182 };
    00183
    00184 void _xcb_conn_shutdown(xcb_connection_t *c);
    00185 int _xcb_conn_wait(xcb_connection_t *c, pthread_cond_t *cond, struct iovec **vector, int *count);
    00186
    00187
    00188 /* xcb_auth.c */
    00189
    00190 int _xcb_get_auth_info(int fd, xcb_auth_info_t *info, int display);
    00191
    00192 #ifdef GCC_HAS_VISIBILITY
    00193 #pragma GCC visibility pop
    00194 #endif
    00195
    00196
    00197 /* xcb_conn.c symbols visible to xcb-xlib */
    00198
    00199 void _xcb_lock_io(xcb_connection_t *c);
    00200 void _xcb_unlock_io(xcb_connection_t *c);
    00201
    00202 #endif