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During shared library loading, a different libLLVM can be pulled in, causing llvm symbols from dependent libraries to resolve to that library instead of this one. This has been seen in the wild with the Mesa OpenGL implementation in JavaFX applications (see wpilibsuite/shuffleboard#361). This is clearly a very breaking change. For some level of backwards compatibility, a namespace alias from llvm to wpi is performed in the "llvm" headers. Unfortunately, forward declarations of llvm classes will still break, but compilers seem to generate clear error messages in those cases ("namespace alias 'llvm' not allowed here, assuming 'wpi'"). This change also moves all the wpiutil headers to a single "wpi" subdirectory from the previously split "llvm", "support", "tcpsockets", and "udpsockets". Shim headers will be added for backwards compatibility in a later commit.
50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/*
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TCPConnector.h
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TCPConnector class interface. TCPConnector provides methods to actively
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establish TCP/IP connections with a server.
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------------------------------------------
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Copyright (c) 2013 [Vic Hargrave - http://vichargrave.com]
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License
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*/
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#ifndef WPIUTIL_TCPSOCKETS_TCPCONNECTOR_H_
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#define WPIUTIL_TCPSOCKETS_TCPCONNECTOR_H_
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#include <memory>
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#include <utility>
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#include "wpi/ArrayRef.h"
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#include "wpi/NetworkStream.h"
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namespace wpi {
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class Logger;
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class TCPConnector {
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public:
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static std::unique_ptr<NetworkStream> connect(const char* server, int port,
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Logger& logger,
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int timeout = 0);
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static std::unique_ptr<NetworkStream> connect_parallel(
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ArrayRef<std::pair<const char*, int>> servers, Logger& logger,
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int timeout = 0);
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};
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} // namespace wpi
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#endif // WPIUTIL_TCPSOCKETS_TCPCONNECTOR_H_
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