diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/xcb/xcb.h | 1032 | ||||
-rw-r--r-- | include/xcb/xcb_windefs.h | 2 | ||||
-rw-r--r-- | include/xcb/xproto.h | 24 |
3 files changed, 537 insertions, 521 deletions
diff --git a/include/xcb/xcb.h b/include/xcb/xcb.h index cfe311ecf..44f650ad7 100644 --- a/include/xcb/xcb.h +++ b/include/xcb/xcb.h @@ -1,507 +1,525 @@ -/*
- * Copyright (C) 2001-2006 Bart Massey, Jamey Sharp, and Josh Triplett.
- * 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 __XCB_H__
-#define __XCB_H__
-#include <sys/types.h>
-
-#if defined(__solaris__)
-#include <inttypes.h>
-#else
-#include <stdint.h>
-#endif
-
-#ifndef _WIN32
-#include <sys/uio.h>
-#else
-#include "xcb_windefs.h"
-#endif
-#include <pthread.h>
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * @file xcb.h
- */
-
-/**
- * @defgroup XCB_Core_API XCB Core API
- * @brief Core API of the XCB library.
- *
- * @{
- */
-
-/* Pre-defined constants */
-
-/** Current protocol version */
-#define X_PROTOCOL 11
-
-/** Current minor version */
-#define X_PROTOCOL_REVISION 0
-
-/** X_TCP_PORT + display number = server port for TCP transport */
-#define X_TCP_PORT 6000
-
-#define XCB_TYPE_PAD(T,I) (-(I) & (sizeof(T) > 4 ? 3 : sizeof(T) - 1))
-
-/* Opaque structures */
-
-/**
- * @brief XCB Connection structure.
- *
- * A structure that contain all data that XCB needs to communicate with an X server.
- */
-typedef struct xcb_connection_t xcb_connection_t; /**< Opaque structure containing all data that XCB needs to communicate with an X server. */
-
-
-/* Other types */
-
-/**
- * @brief Generic iterator.
- *
- * A generic iterator structure.
- */
-typedef struct {
- void *data; /**< Data of the current iterator */
- int rem; /**< remaining elements */
- int index; /**< index of the current iterator */
-} xcb_generic_iterator_t;
-
-/**
- * @brief Generic reply.
- *
- * A generic reply structure.
- */
-typedef struct {
- uint8_t response_type; /**< Type of the response */
- uint8_t pad0; /**< Padding */
- uint16_t sequence; /**< Sequence number */
- uint32_t length; /**< Length of the response */
-} xcb_generic_reply_t;
-
-/**
- * @brief Generic event.
- *
- * A generic event structure.
- */
-typedef struct {
- uint8_t response_type; /**< Type of the response */
- uint8_t pad0; /**< Padding */
- uint16_t sequence; /**< Sequence number */
- uint32_t pad[7]; /**< Padding */
- uint32_t full_sequence; /**< full sequence */
-} xcb_generic_event_t;
-
-/**
- * @brief GE event
- *
- * An event as sent by the XGE extension. The length field specifies the
- * number of 4-byte blocks trailing the struct.
- */
-typedef struct {
- uint8_t response_type; /**< Type of the response */
- uint8_t pad0; /**< Padding */
- uint16_t sequence; /**< Sequence number */
- uint32_t length;
- uint16_t event_type;
- uint16_t pad1;
- uint32_t pad[5]; /**< Padding */
- uint32_t full_sequence; /**< full sequence */
-} xcb_ge_event_t;
-
-/**
- * @brief Generic error.
- *
- * A generic error structure.
- */
-typedef struct {
- uint8_t response_type; /**< Type of the response */
- uint8_t error_code; /**< Error code */
- uint16_t sequence; /**< Sequence number */
- uint32_t resource_id; /** < Resource ID for requests with side effects only */
- uint16_t minor_code; /** < Minor opcode of the failed request */
- uint8_t major_code; /** < Major opcode of the failed request */
- uint8_t pad0;
- uint32_t pad[5]; /**< Padding */
- uint32_t full_sequence; /**< full sequence */
-} xcb_generic_error_t;
-
-/**
- * @brief Generic cookie.
- *
- * A generic cookie structure.
- */
-typedef struct {
- unsigned int sequence; /**< Sequence number */
-} xcb_void_cookie_t;
-
-
-/* Include the generated xproto header. */
-#include "xproto.h"
-
-
-/** XCB_NONE is the universal null resource or null atom parameter value for many core X requests */
-#define XCB_NONE 0L
-
-/** XCB_COPY_FROM_PARENT can be used for many xcb_create_window parameters */
-#define XCB_COPY_FROM_PARENT 0L
-
-/** XCB_CURRENT_TIME can be used in most requests that take an xcb_timestamp_t */
-#define XCB_CURRENT_TIME 0L
-
-/** XCB_NO_SYMBOL fills in unused entries in xcb_keysym_t tables */
-#define XCB_NO_SYMBOL 0L
-
-
-/* xcb_auth.c */
-
-/**
- * @brief Container for authorization information.
- *
- * A container for authorization information to be sent to the X server.
- */
-typedef struct xcb_auth_info_t {
- int namelen; /**< Length of the string name (as returned by strlen). */
- char *name; /**< String containing the authentication protocol name, such as "MIT-MAGIC-COOKIE-1" or "XDM-AUTHORIZATION-1". */
- int datalen; /**< Length of the data member. */
- char *data; /**< Data interpreted in a protocol-specific manner. */
-} xcb_auth_info_t;
-
-
-/* xcb_out.c */
-
-/**
- * @brief Forces any buffered output to be written to the server.
- * @param c: The connection to the X server.
- * @return > @c 0 on success, <= @c 0 otherwise.
- *
- * Forces any buffered output to be written to the server. Blocks
- * until the write is complete.
- */
-int xcb_flush(xcb_connection_t *c);
-
-/**
- * @brief Returns the maximum request length that this server accepts.
- * @param c: The connection to the X server.
- * @return The maximum request length field.
- *
- * In the absence of the BIG-REQUESTS extension, returns the
- * maximum request length field from the connection setup data, which
- * may be as much as 65535. If the server supports BIG-REQUESTS, then
- * the maximum request length field from the reply to the
- * BigRequestsEnable request will be returned instead.
- *
- * Note that this length is measured in four-byte units, making the
- * theoretical maximum lengths roughly 256kB without BIG-REQUESTS and
- * 16GB with.
- */
-uint32_t xcb_get_maximum_request_length(xcb_connection_t *c);
-
-/**
- * @brief Prefetch the maximum request length without blocking.
- * @param c: The connection to the X server.
- *
- * Without blocking, does as much work as possible toward computing
- * the maximum request length accepted by the X server.
- *
- * Invoking this function may cause a call to xcb_big_requests_enable,
- * but will not block waiting for the reply.
- * xcb_get_maximum_request_length will return the prefetched data
- * after possibly blocking while the reply is retrieved.
- *
- * Note that in order for this function to be fully non-blocking, the
- * application must previously have called
- * xcb_prefetch_extension_data(c, &xcb_big_requests_id) and the reply
- * must have already arrived.
- */
-void xcb_prefetch_maximum_request_length(xcb_connection_t *c);
-
-
-/* xcb_in.c */
-
-/**
- * @brief Returns the next event or error from the server.
- * @param c: The connection to the X server.
- * @return The next event from the server.
- *
- * Returns the next event or error from the server, or returns null in
- * the event of an I/O error. Blocks until either an event or error
- * arrive, or an I/O error occurs.
- */
-xcb_generic_event_t *xcb_wait_for_event(xcb_connection_t *c);
-
-/**
- * @brief Returns the next event or error from the server.
- * @param c: The connection to the X server.
- * error status of the operation.
- * @return The next event from the server.
- *
- * Returns the next event or error from the server, if one is
- * available, or returns @c NULL otherwise. If no event is available, that
- * might be because an I/O error like connection close occurred while
- * attempting to read the next event, in which case the connection is
- * shut down when this function returns.
- */
-xcb_generic_event_t *xcb_poll_for_event(xcb_connection_t *c);
-
-/**
- * @brief Returns the next event without reading from the connection.
- * @param c: The connection to the X server.
- * @return The next already queued event from the server.
- *
- * This is a version of xcb_poll_for_event that only examines the
- * event queue for new events. The function doesn't try to read new
- * events from the connection if no queued events are found.
- *
- * This function is useful for callers that know in advance that all
- * interesting events have already been read from the connection. For
- * example, callers might use xcb_wait_for_reply and be interested
- * only of events that preceded a specific reply.
- */
-xcb_generic_event_t *xcb_poll_for_queued_event(xcb_connection_t *c);
-
-/**
- * @brief Return the error for a request, or NULL if none can ever arrive.
- * @param c: The connection to the X server.
- * @param cookie: The request cookie.
- * @return The error for the request, or NULL if none can ever arrive.
- *
- * The xcb_void_cookie_t cookie supplied to this function must have resulted
- * from a call to xcb_[request_name]_checked(). This function will block
- * until one of two conditions happens. If an error is received, it will be
- * returned. If a reply to a subsequent request has already arrived, no error
- * can arrive for this request, so this function will return NULL.
- *
- * Note that this function will perform a sync if needed to ensure that the
- * sequence number will advance beyond that provided in cookie; this is a
- * convenience to avoid races in determining whether the sync is needed.
- */
-xcb_generic_error_t *xcb_request_check(xcb_connection_t *c, xcb_void_cookie_t cookie);
-
-/**
- * @brief Discards the reply for a request.
- * @param c: The connection to the X server.
- * @param sequence: The request sequence number from a cookie.
- *
- * Discards the reply for a request. Additionally, any error generated
- * by the request is also discarded (unless it was an _unchecked request
- * and the error has already arrived).
- *
- * This function will not block even if the reply is not yet available.
- *
- * Note that the sequence really does have to come from an xcb cookie;
- * this function is not designed to operate on socket-handoff replies.
- */
-void xcb_discard_reply(xcb_connection_t *c, unsigned int sequence);
-
-
-/* xcb_ext.c */
-
-/**
- * @typedef typedef struct xcb_extension_t xcb_extension_t
- */
-typedef struct xcb_extension_t xcb_extension_t; /**< Opaque structure used as key for xcb_get_extension_data_t. */
-
-/**
- * @brief Caches reply information from QueryExtension requests.
- * @param c: The connection.
- * @param ext: The extension data.
- * @return A pointer to the xcb_query_extension_reply_t for the extension.
- *
- * This function is the primary interface to the "extension cache",
- * which caches reply information from QueryExtension
- * requests. Invoking this function may cause a call to
- * xcb_query_extension to retrieve extension information from the
- * server, and may block until extension data is received from the
- * server.
- *
- * The result must not be freed. This storage is managed by the cache
- * itself.
- */
-const xcb_query_extension_reply_t *xcb_get_extension_data(xcb_connection_t *c, xcb_extension_t *ext);
-
-/**
- * @brief Prefetch of extension data into the extension cache
- * @param c: The connection.
- * @param ext: The extension data.
- *
- * This function allows a "prefetch" of extension data into the
- * extension cache. Invoking the function may cause a call to
- * xcb_query_extension, but will not block waiting for the
- * reply. xcb_get_extension_data will return the prefetched data after
- * possibly blocking while it is retrieved.
- */
-void xcb_prefetch_extension_data(xcb_connection_t *c, xcb_extension_t *ext);
-
-
-/* xcb_conn.c */
-
-/**
- * @brief Access the data returned by the server.
- * @param c: The connection.
- * @return A pointer to an xcb_setup_t structure.
- *
- * Accessor for the data returned by the server when the xcb_connection_t
- * was initialized. This data includes
- * - the server's required format for images,
- * - a list of available visuals,
- * - a list of available screens,
- * - the server's maximum request length (in the absence of the
- * BIG-REQUESTS extension),
- * - and other assorted information.
- *
- * See the X protocol specification for more details.
- *
- * The result must not be freed.
- */
-const xcb_setup_t *xcb_get_setup(xcb_connection_t *c);
-
-/**
- * @brief Access the file descriptor of the connection.
- * @param c: The connection.
- * @return The file descriptor.
- *
- * Accessor for the file descriptor that was passed to the
- * xcb_connect_to_fd call that returned @p c.
- */
-int xcb_get_file_descriptor(xcb_connection_t *c);
-
-/**
- * @brief Test whether the connection has shut down due to a fatal error.
- * @param c: The connection.
- * @return 1 if the connection is in an error state; 0 otherwise.
- *
- * Some errors that occur in the context of an xcb_connection_t
- * are unrecoverable. When such an error occurs, the
- * connection is shut down and further operations on the
- * xcb_connection_t have no effect.
- *
- * @todo Other functions should document the conditions in
- * which they shut down the connection.
- */
-int xcb_connection_has_error(xcb_connection_t *c);
-
-/**
- * @brief Connects to the X server.
- * @param fd: The file descriptor.
- * @param auth_info: Authentication data.
- * @return A newly allocated xcb_connection_t structure.
- *
- * Connects to an X server, given the open socket @p fd and the
- * xcb_auth_info_t @p auth_info. The file descriptor @p fd is
- * bidirectionally connected to an X server. If the connection
- * should be unauthenticated, @p auth_info must be @c
- * NULL.
- */
-xcb_connection_t *xcb_connect_to_fd(int fd, xcb_auth_info_t *auth_info);
-
-/**
- * @brief Closes the connection.
- * @param c: The connection.
- *
- * Closes the file descriptor and frees all memory associated with the
- * connection @c c.
- */
-void xcb_disconnect(xcb_connection_t *c);
-
-
-/* xcb_util.c */
-
-/**
- * @brief Parses a display string name in the form documented by X(7x).
- * @param name: The name of the display.
- * @param host: A pointer to a malloc'd copy of the hostname.
- * @param display: A pointer to the display number.
- * @param screen: A pointer to the screen number.
- * @return 0 on failure, non 0 otherwise.
- *
- * Parses the display string name @p display_name in the form
- * documented by X(7x). Has no side effects on failure. If
- * @p displayname is @c NULL or empty, it uses the environment
- * variable DISPLAY. @p hostp is a pointer to a newly allocated string
- * that contain the host name. @p displayp is set to the display
- * number and @p screenp to the preferred screen number. @p screenp
- * can be @c NULL. If @p displayname does not contain a screen number,
- * it is set to @c 0.
- */
-int xcb_parse_display(const char *name, char **host, int *display, int *screen);
-
-/**
- * @brief Connects to the X server.
- * @param displayname: The name of the display.
- * @param screenp: A pointer to a preferred screen number.
- * @return A newly allocated xcb_connection_t structure.
- *
- * Connects to the X server specified by @p displayname. If @p
- * displayname is @c NULL, uses the value of the DISPLAY environment
- * variable. If a particular screen on that server is preferred, the
- * int pointed to by @p screenp (if not @c NULL) will be set to that
- * screen; otherwise the screen will be set to 0.
- */
-xcb_connection_t *xcb_connect(const char *displayname, int *screenp);
-
-/**
- * @brief Connects to the X server, using an authorization information.
- * @param display: The name of the display.
- * @param auth: The authorization information.
- * @param screen: A pointer to a preferred screen number.
- * @return A newly allocated xcb_connection_t structure.
- *
- * Connects to the X server specified by @p displayname, using the
- * authorization @p auth. If a particular screen on that server is
- * preferred, the int pointed to by @p screenp (if not @c NULL) will
- * be set to that screen; otherwise @p screenp will be set to 0.
- */
-xcb_connection_t *xcb_connect_to_display_with_auth_info(const char *display, xcb_auth_info_t *auth, int *screen);
-
-
-/* xcb_xid.c */
-
-/**
- * @brief Allocates an XID for a new object.
- * @param c: The connection.
- * @return A newly allocated XID.
- *
- * Allocates an XID for a new object. Typically used just prior to
- * various object creation functions, such as xcb_create_window.
- */
-uint32_t xcb_generate_id(xcb_connection_t *c);
-
-
-/**
- * @}
- */
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* __XCB_H__ */
+/* + * Copyright (C) 2001-2006 Bart Massey, Jamey Sharp, and Josh Triplett. + * 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 __XCB_H__ +#define __XCB_H__ +#include <sys/types.h> + +#if defined(__solaris__) +#include <inttypes.h> +#else +#include <stdint.h> +#endif + +#ifndef _WIN32 +#include <sys/uio.h> +#else +#include "xcb_windefs.h" +#endif +#include <pthread.h> + + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @file xcb.h + */ + +/** + * @defgroup XCB_Core_API XCB Core API + * @brief Core API of the XCB library. + * + * @{ + */ + +/* Pre-defined constants */ + +/** Current protocol version */ +#define X_PROTOCOL 11 + +/** Current minor version */ +#define X_PROTOCOL_REVISION 0 + +/** X_TCP_PORT + display number = server port for TCP transport */ +#define X_TCP_PORT 6000 + +/** xcb connection errors because of socket, pipe and other stream errors. */ +#define XCB_CONN_ERROR 1 + +/** xcb connection shutdown because of extension not sppported */ +#define XCB_CONN_CLOSED_EXT_NOTSUPPORTED 2 + +/** malloc(), calloc() and realloc() error upon failure, for eg ENOMEM */ +#define XCB_CONN_CLOSED_MEM_INSUFFICIENT 3 + +/** Connection closed, exceeding request length that server accepts. */ +#define XCB_CONN_CLOSED_REQ_LEN_EXCEED 4 + +/** Connection closed, error during parsing display string. */ +#define XCB_CONN_CLOSED_PARSE_ERR 5 + +#define XCB_TYPE_PAD(T,I) (-(I) & (sizeof(T) > 4 ? 3 : sizeof(T) - 1)) + +/* Opaque structures */ + +/** + * @brief XCB Connection structure. + * + * A structure that contain all data that XCB needs to communicate with an X server. + */ +typedef struct xcb_connection_t xcb_connection_t; /**< Opaque structure containing all data that XCB needs to communicate with an X server. */ + + +/* Other types */ + +/** + * @brief Generic iterator. + * + * A generic iterator structure. + */ +typedef struct { + void *data; /**< Data of the current iterator */ + int rem; /**< remaining elements */ + int index; /**< index of the current iterator */ +} xcb_generic_iterator_t; + +/** + * @brief Generic reply. + * + * A generic reply structure. + */ +typedef struct { + uint8_t response_type; /**< Type of the response */ + uint8_t pad0; /**< Padding */ + uint16_t sequence; /**< Sequence number */ + uint32_t length; /**< Length of the response */ +} xcb_generic_reply_t; + +/** + * @brief Generic event. + * + * A generic event structure. + */ +typedef struct { + uint8_t response_type; /**< Type of the response */ + uint8_t pad0; /**< Padding */ + uint16_t sequence; /**< Sequence number */ + uint32_t pad[7]; /**< Padding */ + uint32_t full_sequence; /**< full sequence */ +} xcb_generic_event_t; + +/** + * @brief GE event + * + * An event as sent by the XGE extension. The length field specifies the + * number of 4-byte blocks trailing the struct. + */ +typedef struct { + uint8_t response_type; /**< Type of the response */ + uint8_t pad0; /**< Padding */ + uint16_t sequence; /**< Sequence number */ + uint32_t length; + uint16_t event_type; + uint16_t pad1; + uint32_t pad[5]; /**< Padding */ + uint32_t full_sequence; /**< full sequence */ +} xcb_ge_event_t; + +/** + * @brief Generic error. + * + * A generic error structure. + */ +typedef struct { + uint8_t response_type; /**< Type of the response */ + uint8_t error_code; /**< Error code */ + uint16_t sequence; /**< Sequence number */ + uint32_t resource_id; /** < Resource ID for requests with side effects only */ + uint16_t minor_code; /** < Minor opcode of the failed request */ + uint8_t major_code; /** < Major opcode of the failed request */ + uint8_t pad0; + uint32_t pad[5]; /**< Padding */ + uint32_t full_sequence; /**< full sequence */ +} xcb_generic_error_t; + +/** + * @brief Generic cookie. + * + * A generic cookie structure. + */ +typedef struct { + unsigned int sequence; /**< Sequence number */ +} xcb_void_cookie_t; + + +/* Include the generated xproto header. */ +#include "xproto.h" + + +/** XCB_NONE is the universal null resource or null atom parameter value for many core X requests */ +#define XCB_NONE 0L + +/** XCB_COPY_FROM_PARENT can be used for many xcb_create_window parameters */ +#define XCB_COPY_FROM_PARENT 0L + +/** XCB_CURRENT_TIME can be used in most requests that take an xcb_timestamp_t */ +#define XCB_CURRENT_TIME 0L + +/** XCB_NO_SYMBOL fills in unused entries in xcb_keysym_t tables */ +#define XCB_NO_SYMBOL 0L + + +/* xcb_auth.c */ + +/** + * @brief Container for authorization information. + * + * A container for authorization information to be sent to the X server. + */ +typedef struct xcb_auth_info_t { + int namelen; /**< Length of the string name (as returned by strlen). */ + char *name; /**< String containing the authentication protocol name, such as "MIT-MAGIC-COOKIE-1" or "XDM-AUTHORIZATION-1". */ + int datalen; /**< Length of the data member. */ + char *data; /**< Data interpreted in a protocol-specific manner. */ +} xcb_auth_info_t; + + +/* xcb_out.c */ + +/** + * @brief Forces any buffered output to be written to the server. + * @param c: The connection to the X server. + * @return > @c 0 on success, <= @c 0 otherwise. + * + * Forces any buffered output to be written to the server. Blocks + * until the write is complete. + */ +int xcb_flush(xcb_connection_t *c); + +/** + * @brief Returns the maximum request length that this server accepts. + * @param c: The connection to the X server. + * @return The maximum request length field. + * + * In the absence of the BIG-REQUESTS extension, returns the + * maximum request length field from the connection setup data, which + * may be as much as 65535. If the server supports BIG-REQUESTS, then + * the maximum request length field from the reply to the + * BigRequestsEnable request will be returned instead. + * + * Note that this length is measured in four-byte units, making the + * theoretical maximum lengths roughly 256kB without BIG-REQUESTS and + * 16GB with. + */ +uint32_t xcb_get_maximum_request_length(xcb_connection_t *c); + +/** + * @brief Prefetch the maximum request length without blocking. + * @param c: The connection to the X server. + * + * Without blocking, does as much work as possible toward computing + * the maximum request length accepted by the X server. + * + * Invoking this function may cause a call to xcb_big_requests_enable, + * but will not block waiting for the reply. + * xcb_get_maximum_request_length will return the prefetched data + * after possibly blocking while the reply is retrieved. + * + * Note that in order for this function to be fully non-blocking, the + * application must previously have called + * xcb_prefetch_extension_data(c, &xcb_big_requests_id) and the reply + * must have already arrived. + */ +void xcb_prefetch_maximum_request_length(xcb_connection_t *c); + + +/* xcb_in.c */ + +/** + * @brief Returns the next event or error from the server. + * @param c: The connection to the X server. + * @return The next event from the server. + * + * Returns the next event or error from the server, or returns null in + * the event of an I/O error. Blocks until either an event or error + * arrive, or an I/O error occurs. + */ +xcb_generic_event_t *xcb_wait_for_event(xcb_connection_t *c); + +/** + * @brief Returns the next event or error from the server. + * @param c: The connection to the X server. + * error status of the operation. + * @return The next event from the server. + * + * Returns the next event or error from the server, if one is + * available, or returns @c NULL otherwise. If no event is available, that + * might be because an I/O error like connection close occurred while + * attempting to read the next event, in which case the connection is + * shut down when this function returns. + */ +xcb_generic_event_t *xcb_poll_for_event(xcb_connection_t *c); + +/** + * @brief Returns the next event without reading from the connection. + * @param c: The connection to the X server. + * @return The next already queued event from the server. + * + * This is a version of xcb_poll_for_event that only examines the + * event queue for new events. The function doesn't try to read new + * events from the connection if no queued events are found. + * + * This function is useful for callers that know in advance that all + * interesting events have already been read from the connection. For + * example, callers might use xcb_wait_for_reply and be interested + * only of events that preceded a specific reply. + */ +xcb_generic_event_t *xcb_poll_for_queued_event(xcb_connection_t *c); + +/** + * @brief Return the error for a request, or NULL if none can ever arrive. + * @param c: The connection to the X server. + * @param cookie: The request cookie. + * @return The error for the request, or NULL if none can ever arrive. + * + * The xcb_void_cookie_t cookie supplied to this function must have resulted + * from a call to xcb_[request_name]_checked(). This function will block + * until one of two conditions happens. If an error is received, it will be + * returned. If a reply to a subsequent request has already arrived, no error + * can arrive for this request, so this function will return NULL. + * + * Note that this function will perform a sync if needed to ensure that the + * sequence number will advance beyond that provided in cookie; this is a + * convenience to avoid races in determining whether the sync is needed. + */ +xcb_generic_error_t *xcb_request_check(xcb_connection_t *c, xcb_void_cookie_t cookie); + +/** + * @brief Discards the reply for a request. + * @param c: The connection to the X server. + * @param sequence: The request sequence number from a cookie. + * + * Discards the reply for a request. Additionally, any error generated + * by the request is also discarded (unless it was an _unchecked request + * and the error has already arrived). + * + * This function will not block even if the reply is not yet available. + * + * Note that the sequence really does have to come from an xcb cookie; + * this function is not designed to operate on socket-handoff replies. + */ +void xcb_discard_reply(xcb_connection_t *c, unsigned int sequence); + + +/* xcb_ext.c */ + +/** + * @typedef typedef struct xcb_extension_t xcb_extension_t + */ +typedef struct xcb_extension_t xcb_extension_t; /**< Opaque structure used as key for xcb_get_extension_data_t. */ + +/** + * @brief Caches reply information from QueryExtension requests. + * @param c: The connection. + * @param ext: The extension data. + * @return A pointer to the xcb_query_extension_reply_t for the extension. + * + * This function is the primary interface to the "extension cache", + * which caches reply information from QueryExtension + * requests. Invoking this function may cause a call to + * xcb_query_extension to retrieve extension information from the + * server, and may block until extension data is received from the + * server. + * + * The result must not be freed. This storage is managed by the cache + * itself. + */ +const xcb_query_extension_reply_t *xcb_get_extension_data(xcb_connection_t *c, xcb_extension_t *ext); + +/** + * @brief Prefetch of extension data into the extension cache + * @param c: The connection. + * @param ext: The extension data. + * + * This function allows a "prefetch" of extension data into the + * extension cache. Invoking the function may cause a call to + * xcb_query_extension, but will not block waiting for the + * reply. xcb_get_extension_data will return the prefetched data after + * possibly blocking while it is retrieved. + */ +void xcb_prefetch_extension_data(xcb_connection_t *c, xcb_extension_t *ext); + + +/* xcb_conn.c */ + +/** + * @brief Access the data returned by the server. + * @param c: The connection. + * @return A pointer to an xcb_setup_t structure. + * + * Accessor for the data returned by the server when the xcb_connection_t + * was initialized. This data includes + * - the server's required format for images, + * - a list of available visuals, + * - a list of available screens, + * - the server's maximum request length (in the absence of the + * BIG-REQUESTS extension), + * - and other assorted information. + * + * See the X protocol specification for more details. + * + * The result must not be freed. + */ +const xcb_setup_t *xcb_get_setup(xcb_connection_t *c); + +/** + * @brief Access the file descriptor of the connection. + * @param c: The connection. + * @return The file descriptor. + * + * Accessor for the file descriptor that was passed to the + * xcb_connect_to_fd call that returned @p c. + */ +int xcb_get_file_descriptor(xcb_connection_t *c); + +/** + * @brief Test whether the connection has shut down due to a fatal error. + * @param c: The connection. + * @return > 0 if the connection is in an error state; 0 otherwise. + * + * Some errors that occur in the context of an xcb_connection_t + * are unrecoverable. When such an error occurs, the + * connection is shut down and further operations on the + * xcb_connection_t have no effect. + * + * @return XCB_CONN_ERROR, because of socket errors, pipe errors or other stream errors. + * @return XCB_CONN_CLOSED_EXT_NOTSUPPORTED, when extension not supported. + * @return XCB_CONN_CLOSED_MEM_INSUFFICIENT, when memory not available. + * @return XCB_CONN_CLOSED_REQ_LEN_EXCEED, exceeding request length that server accepts. + * @return XCB_CONN_CLOSED_PARSE_ERR, error during parsing display string. + */ +int xcb_connection_has_error(xcb_connection_t *c); + +/** + * @brief Connects to the X server. + * @param fd: The file descriptor. + * @param auth_info: Authentication data. + * @return A newly allocated xcb_connection_t structure. + * + * Connects to an X server, given the open socket @p fd and the + * xcb_auth_info_t @p auth_info. The file descriptor @p fd is + * bidirectionally connected to an X server. If the connection + * should be unauthenticated, @p auth_info must be @c + * NULL. + */ +xcb_connection_t *xcb_connect_to_fd(int fd, xcb_auth_info_t *auth_info); + +/** + * @brief Closes the connection. + * @param c: The connection. + * + * Closes the file descriptor and frees all memory associated with the + * connection @c c. + */ +void xcb_disconnect(xcb_connection_t *c); + + +/* xcb_util.c */ + +/** + * @brief Parses a display string name in the form documented by X(7x). + * @param name: The name of the display. + * @param host: A pointer to a malloc'd copy of the hostname. + * @param display: A pointer to the display number. + * @param screen: A pointer to the screen number. + * @return 0 on failure, non 0 otherwise. + * + * Parses the display string name @p display_name in the form + * documented by X(7x). Has no side effects on failure. If + * @p displayname is @c NULL or empty, it uses the environment + * variable DISPLAY. @p hostp is a pointer to a newly allocated string + * that contain the host name. @p displayp is set to the display + * number and @p screenp to the preferred screen number. @p screenp + * can be @c NULL. If @p displayname does not contain a screen number, + * it is set to @c 0. + */ +int xcb_parse_display(const char *name, char **host, int *display, int *screen); + +/** + * @brief Connects to the X server. + * @param displayname: The name of the display. + * @param screenp: A pointer to a preferred screen number. + * @return A newly allocated xcb_connection_t structure. + * + * Connects to the X server specified by @p displayname. If @p + * displayname is @c NULL, uses the value of the DISPLAY environment + * variable. If a particular screen on that server is preferred, the + * int pointed to by @p screenp (if not @c NULL) will be set to that + * screen; otherwise the screen will be set to 0. + */ +xcb_connection_t *xcb_connect(const char *displayname, int *screenp); + +/** + * @brief Connects to the X server, using an authorization information. + * @param display: The name of the display. + * @param auth: The authorization information. + * @param screen: A pointer to a preferred screen number. + * @return A newly allocated xcb_connection_t structure. + * + * Connects to the X server specified by @p displayname, using the + * authorization @p auth. If a particular screen on that server is + * preferred, the int pointed to by @p screenp (if not @c NULL) will + * be set to that screen; otherwise @p screenp will be set to 0. + */ +xcb_connection_t *xcb_connect_to_display_with_auth_info(const char *display, xcb_auth_info_t *auth, int *screen); + + +/* xcb_xid.c */ + +/** + * @brief Allocates an XID for a new object. + * @param c: The connection. + * @return A newly allocated XID. + * + * Allocates an XID for a new object. Typically used just prior to + * various object creation functions, such as xcb_create_window. + */ +uint32_t xcb_generate_id(xcb_connection_t *c); + + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + + +#endif /* __XCB_H__ */ diff --git a/include/xcb/xcb_windefs.h b/include/xcb/xcb_windefs.h index 5b3493d1a..9789735f2 100644 --- a/include/xcb/xcb_windefs.h +++ b/include/xcb/xcb_windefs.h @@ -40,6 +40,8 @@ #include <ws2tcpip.h>
#include <windef.h>
+typedef unsigned char BYTE;
+
typedef unsigned int in_addr_t;
#define HANDLE void *
diff --git a/include/xcb/xproto.h b/include/xcb/xproto.h index 2872c8c75..55fb38d6a 100644 --- a/include/xcb/xproto.h +++ b/include/xcb/xproto.h @@ -2668,6 +2668,7 @@ typedef struct xcb_set_font_path_request_t { uint8_t pad0; /**< */
uint16_t length; /**< */
uint16_t font_qty; /**< */
+ uint8_t pad1[2]; /**< */
} xcb_set_font_path_request_t;
/**
@@ -9950,8 +9951,7 @@ xcb_list_fonts_with_info_reply (xcb_connection_t *c /**< */, xcb_generic_error_t **e /**< */);
int
-xcb_set_font_path_sizeof (const void *_buffer /**< */,
- uint32_t path_len /**< */);
+xcb_set_font_path_sizeof (const void *_buffer /**< */);
/**
* Delivers a request to the X server
@@ -9971,8 +9971,7 @@ xcb_set_font_path_sizeof (const void *_buffer /**< */, **
** @param xcb_connection_t *c
** @param uint16_t font_qty
- ** @param uint32_t path_len
- ** @param const char *path
+ ** @param const xcb_str_t *font
** @returns xcb_void_cookie_t
**
*****************************************************************************/
@@ -9980,8 +9979,7 @@ xcb_set_font_path_sizeof (const void *_buffer /**< */, xcb_void_cookie_t
xcb_set_font_path_checked (xcb_connection_t *c /**< */,
uint16_t font_qty /**< */,
- uint32_t path_len /**< */,
- const char *path /**< */);
+ const xcb_str_t *font /**< */);
/**
* Delivers a request to the X server
@@ -9998,8 +9996,7 @@ xcb_set_font_path_checked (xcb_connection_t *c /**< */, **
** @param xcb_connection_t *c
** @param uint16_t font_qty
- ** @param uint32_t path_len
- ** @param const char *path
+ ** @param const xcb_str_t *font
** @returns xcb_void_cookie_t
**
*****************************************************************************/
@@ -10007,8 +10004,7 @@ xcb_set_font_path_checked (xcb_connection_t *c /**< */, xcb_void_cookie_t
xcb_set_font_path (xcb_connection_t *c /**< */,
uint16_t font_qty /**< */,
- uint32_t path_len /**< */,
- const char *path /**< */);
+ const xcb_str_t *font /**< */);
int
xcb_get_font_path_sizeof (const void *_buffer /**< */);
@@ -14578,7 +14574,7 @@ xcb_change_hosts_sizeof (const void *_buffer /**< */); ** @param uint8_t mode
** @param uint8_t family
** @param uint16_t address_len
- ** @param const char *address
+ ** @param const uint8_t *address
** @returns xcb_void_cookie_t
**
*****************************************************************************/
@@ -14588,7 +14584,7 @@ xcb_change_hosts_checked (xcb_connection_t *c /**< */, uint8_t mode /**< */,
uint8_t family /**< */,
uint16_t address_len /**< */,
- const char *address /**< */);
+ const uint8_t *address /**< */);
/**
* Delivers a request to the X server
@@ -14607,7 +14603,7 @@ xcb_change_hosts_checked (xcb_connection_t *c /**< */, ** @param uint8_t mode
** @param uint8_t family
** @param uint16_t address_len
- ** @param const char *address
+ ** @param const uint8_t *address
** @returns xcb_void_cookie_t
**
*****************************************************************************/
@@ -14617,7 +14613,7 @@ xcb_change_hosts (xcb_connection_t *c /**< */, uint8_t mode /**< */,
uint8_t family /**< */,
uint16_t address_len /**< */,
- const char *address /**< */);
+ const uint8_t *address /**< */);
int
xcb_host_sizeof (const void *_buffer /**< */);
|