xcbint.h
/*
* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the names of the authors or their
* institutions shall not be used in advertising or otherwise to promote the
* sale, use or other dealings in this Software without prior written
* authorization from the authors.
*/
#ifndef __XCBINT_H
#define __XCBINT_H
#include "bigreq.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef GCC_HAS_VISIBILITY
#pragma GCC visibility push(hidden)
#endif
#ifndef __has_attribute
# define __has_attribute(x) 0 /* Compatibility with older compilers. */
#endif
#if __has_attribute(fallthrough)
# define XCB_ALLOW_FALLTHRU __attribute__ ((fallthrough));
#else
# define XCB_ALLOW_FALLTHRU /* FALLTHRU */
#endif
enum workarounds {
WORKAROUND_NONE,
WORKAROUND_GLX_GET_FB_CONFIGS_BUG,
WORKAROUND_EXTERNAL_SOCKET_OWNER
};
enum lazy_reply_tag
{
LAZY_NONE = 0,
LAZY_COOKIE,
LAZY_FORCED
};
#define XCB_PAD(i) (-(i) & 3)
#define XCB_SEQUENCE_COMPARE(a,op,b) ((int64_t) ((a) - (b)) op 0)
#ifndef offsetof
#define offsetof(type,member) ((size_t) &((type *)0)->member)
#endif
#ifndef MIN
#define MIN(x,y) ((x) < (y) ? (x) : (y))
#endif
#define container_of(pointer,type,member) ((type *)(((char *)(pointer)) - offsetof(type, member)))
/* xcb_list.c */
typedef void (*xcb_list_free_func_t)(void *);
typedef struct _xcb_map _xcb_map;
_xcb_map *_xcb_map_new(void);
void _xcb_map_delete(_xcb_map *q, xcb_list_free_func_t do_free);
int _xcb_map_put(_xcb_map *q, uint64_t key, void *data);
void *_xcb_map_remove(_xcb_map *q, uint64_t key);
/* xcb_out.c */
#if HAVE_SENDMSG
#define XCB_MAX_PASS_FD 16
typedef struct _xcb_fd {
int fd[XCB_MAX_PASS_FD];
int nfd;
int ifd;
} _xcb_fd;
#endif
typedef struct _xcb_out {
pthread_cond_t cond;
int writing;
pthread_cond_t socket_cond;
void (*return_socket)(void *closure);
void *socket_closure;
int socket_moving;
char queue[XCB_QUEUE_BUFFER_SIZE];
int queue_len;
uint64_t request;
uint64_t request_written;
uint64_t request_expected_written;
uint64_t total_written;
pthread_mutex_t reqlenlock;
enum lazy_reply_tag maximum_request_length_tag;
union {
xcb_big_requests_enable_cookie_t cookie;
uint32_t value;
} maximum_request_length;
#if HAVE_SENDMSG
_xcb_fd out_fd;
#endif
} _xcb_out;
int _xcb_out_init(_xcb_out *out);
void _xcb_out_destroy(_xcb_out *out);
int _xcb_out_send(xcb_connection_t *c, struct iovec *vector, int count);
void _xcb_out_send_sync(xcb_connection_t *c);
int _xcb_out_flush_to(xcb_connection_t *c, uint64_t request);
/* xcb_in.c */
typedef struct _xcb_in {
pthread_cond_t event_cond;
int reading;
char queue[4096];
int queue_len;
uint64_t request_expected;
uint64_t request_read;
uint64_t request_completed;
uint64_t total_read;
struct reply_list *current_reply;
struct reply_list **current_reply_tail;
_xcb_map *replies;
struct event_list *events;
struct event_list **events_tail;
struct reader_list *readers;
struct special_list *special_waiters;
struct pending_reply *pending_replies;
struct pending_reply **pending_replies_tail;
#if HAVE_SENDMSG
_xcb_fd in_fd;
#endif
struct xcb_special_event *special_events;
} _xcb_in;
int _xcb_in_init(_xcb_in *in);
void _xcb_in_destroy(_xcb_in *in);
void _xcb_in_wake_up_next_reader(xcb_connection_t *c);
int _xcb_in_expect_reply(xcb_connection_t *c, uint64_t request, enum workarounds workaround, int flags);
void _xcb_in_replies_done(xcb_connection_t *c);
int _xcb_in_read(xcb_connection_t *c);
int _xcb_in_read_block(xcb_connection_t *c, void *buf, int nread);
/* xcb_xid.c */
typedef struct _xcb_xid {
pthread_mutex_t lock;
uint32_t last;
uint32_t base;
uint32_t max;
uint32_t inc;
} _xcb_xid;
int _xcb_xid_init(xcb_connection_t *c);
void _xcb_xid_destroy(xcb_connection_t *c);
/* xcb_ext.c */
typedef struct _xcb_ext {
pthread_mutex_t lock;
struct lazyreply *extensions;
int extensions_size;
} _xcb_ext;
int _xcb_ext_init(xcb_connection_t *c);
void _xcb_ext_destroy(xcb_connection_t *c);
/* xcb_conn.c */
struct xcb_connection_t {
/* This must be the first field; see _xcb_conn_ret_error(). */
int has_error;
/* constant data */
xcb_setup_t *setup;
int fd;
/* I/O data */
pthread_mutex_t iolock;
_xcb_in in;
_xcb_out out;
/* misc data */
_xcb_ext ext;
_xcb_xid xid;
};
void _xcb_conn_shutdown(xcb_connection_t *c, int err);
xcb_connection_t *_xcb_conn_ret_error(int err);
int _xcb_conn_wait(xcb_connection_t *c, pthread_cond_t *cond, struct iovec **vector, int *count);
/* xcb_auth.c */
int _xcb_get_auth_info(int fd, xcb_auth_info_t *info, int display);
#ifdef GCC_HAS_VISIBILITY
#pragma GCC visibility pop
#endif
#endif
_xcb_ext
Definition xcbint.h:196
_xcb_in
Definition xcbint.h:140
_xcb_map
Definition xcb_list.c:43
_xcb_out
Definition xcbint.h:102
_xcb_xid
Definition xcbint.h:182
event_list
Definition xcb_in.c:59
iovec
Definition xcb_windefs.h:38
lazyreply
Definition xcb_ext.c:39
pending_reply
Definition xcb_in.c:86
reader_list
Definition xcb_in.c:94
reply_list
Definition xcb_in.c:81
special_list
Definition xcb_in.c:100
xcb_auth_info_t
Container for authorization information.
Definition xcb.h:232
xcb_big_requests_enable_cookie_t
xcb_big_requests_enable_cookie_t
Definition bigreq.h:29
xcb_connection_t
Definition xcbint.h:208
xcb_setup_t
xcb_setup_t
Definition xproto.h:475
xcb_special_event
Definition xcb_in.c:64