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qpid/client/FlowControl.h
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00001 #ifndef QPID_CLIENT_FLOWCONTROL_H
00002 #define QPID_CLIENT_FLOWCONTROL_H
00003 
00004 /*
00005  *
00006  * Licensed to the Apache Software Foundation (ASF) under one
00007  * or more contributor license agreements.  See the NOTICE file
00008  * distributed with this work for additional information
00009  * regarding copyright ownership.  The ASF licenses this file
00010  * to you under the Apache License, Version 2.0 (the
00011  * "License"); you may not use this file except in compliance
00012  * with the License.  You may obtain a copy of the License at
00013  *
00014  *   http://www.apache.org/licenses/LICENSE-2.0
00015  *
00016  * Unless required by applicable law or agreed to in writing,
00017  * software distributed under the License is distributed on an
00018  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
00019  * KIND, either express or implied.  See the License for the
00020  * specific language governing permissions and limitations
00021  * under the License.
00022  *
00023  */
00024 
00025 #include <qpid/sys/IntegerTypes.h>
00026 
00027 namespace qpid {
00028 namespace client {
00029 
00049 struct FlowControl {
00050     static const uint32_t UNLIMITED=0xFFFFFFFF;
00051     FlowControl(uint32_t messages_=0, uint32_t bytes_=0, bool window_=false)
00052         : messages(messages_), bytes(bytes_), window(window_) {}
00053 
00054     static FlowControl messageCredit(uint32_t messages_) { return FlowControl(messages_,UNLIMITED,false); }
00055     static FlowControl messageWindow(uint32_t messages_) { return FlowControl(messages_,UNLIMITED,true); }
00056     static FlowControl byteCredit(uint32_t bytes_) { return FlowControl(UNLIMITED,bytes_,false); }
00057     static FlowControl byteWindow(uint32_t bytes_) { return FlowControl(UNLIMITED,bytes_,true); }
00058     static FlowControl unlimited() { return FlowControl(UNLIMITED, UNLIMITED, false); }
00059     static FlowControl zero() { return FlowControl(0, 0, false); }
00060 
00062     uint32_t messages;
00064     uint32_t bytes;
00066     bool window;
00067 
00068     bool operator==(const FlowControl& x) {
00069         return messages == x.messages && bytes == x.bytes && window == x.window;
00070     };
00071 };
00072 
00073 }} // namespace qpid::client
00074 
00075 #endif  

Qpid C++ API Reference
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