#include <stdint.h>
#endif
+#ifndef _WIN32
#include <sys/uio.h>
+#else
+#include "xcb_windefs.h"
+#endif
#include <pthread.h>
uint8_t pad0; /**< Padding */
uint16_t sequence; /**< Sequence number */
uint32_t pad[7]; /**< Padding */
- uint32_t full_sequence;
+ 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.
*
uint8_t response_type; /**< Type of the response */
uint8_t error_code; /**< Error code */
uint16_t sequence; /**< Sequence number */
- uint32_t pad[7]; /**< Padding */
- uint32_t full_sequence;
+ 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;
/**
int xcb_flush(xcb_connection_t *c);
/**
- * @brief Returns the maximum request length field from the connection
- * setup data.
+ * @brief Returns the maximum request length that this server accepts.
* @param c: The connection to the X server.
* @return The maximum request length field.
*
*/
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.
- * @param error: A pointer to an int to be filled in with the I/O
* error status of the operation.
* @return The next event from the server.
*
*/
xcb_generic_event_t *xcb_poll_for_event(xcb_connection_t *c);
+/**
+ * @brief Returns the next event or error that precedes the given request.
+ * @param c: The connection to the X server.
+ * @param request: The limiting sequence number.
+ * @return The next event from the server.
+ *
+ * Returns the next event or error with a sequence number less than or
+ * equal to the given sequence number, or returns NULL if no such event can
+ * ever arrive. Blocks until either a suitable event or error arrive, or a
+ * response arrives that proves no such event is coming, or an I/O error
+ * occurs.
+ *
+ * After processing a request, the X server sends responses in a specific
+ * order. First come any events that the request generated, then any
+ * replies for the request, then the error response if there is one. After
+ * that, the server may spontaneously send more events with the same
+ * sequence number, which are not related to that request.
+ *
+ * This function will always return events from the pre-reply phase of the
+ * specified request. It may also return events from the unrelated
+ * post-reply stream, as long as they have the same sequence number.
+ *
+ * This function is useful for callers that need to process responses in
+ * wire-order.
+ *
+ * Implementation note: You cannot currently use this function to ensure
+ * that you process responses in exactly wire-order, because depending on
+ * the sequence of calls you make and the timing of server responses,
+ * post-reply events with the same sequence number may be returned as part
+ * of the pre-reply event stream, even though they were separated by a
+ * reply or error. In practice this kind of error is unlikely to matter,
+ * but it may be fixed in the future.
+ */
+xcb_generic_event_t *xcb_wait_for_event_until(xcb_connection_t *c, unsigned int request);
+
/**
* @brief Return the error for a request, or NULL if none can ever arrive.
* @param c: The connection to the X server.
*/
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 */
/**
* @brief Parses a display string name in the form documented by X(7x).
- * @param displayname: The name of the display.
- * @param hostp: A pointer to a malloc'd copy of the hostname.
- * @param displayp: A pointer to the display number.
- * @param screenp: A pointer to the screen number.
+ * @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
/**
* @brief Connects to the X server, using an authorization information.
- * @param displayname: The name of the display.
+ * @param display: The name of the display.
* @param auth: The authorization information.
- * @param screenp: A pointer to a preferred screen number.
+ * @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