added generating code for _serialize() in case of variable sized structs (largely...

[free-sw/xcb/libxcb] / src / xcb.h

diff --git a/src/xcb.h b/src/xcb.h
index 4c3e079..35d8768 100644 (file)
--- a/src/xcb.h
+++ b/src/xcb.h
@@ -115,6 +115,23 @@ typedef struct {
     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.
  *
@@ -124,7 +141,11 @@ typedef struct {
     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 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;
 
@@ -183,8 +204,7 @@ typedef struct xcb_auth_info_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.
  *
@@ -200,6 +220,25 @@ int xcb_flush(xcb_connection_t *c);
  */
 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 */
 
@@ -246,6 +285,22 @@ xcb_generic_event_t *xcb_poll_for_event(xcb_connection_t *c);
  */
 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 */