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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/HashMap.h>
#include <ProtocolServer/Protocol.h>
#include <fcntl.h>
#include <string.h>
namespace ProtocolServer {
static HashMap<String, Protocol*>& all_protocols()
{
static HashMap<String, Protocol*> map;
return map;
}
Protocol* Protocol::find_by_name(const String& name)
{
return all_protocols().get(name).value_or(nullptr);
}
Protocol::Protocol(const String& name)
{
all_protocols().set(name, this);
}
Protocol::~Protocol()
{
ASSERT_NOT_REACHED();
}
Result<Protocol::Pipe, String> Protocol::get_pipe_for_download()
{
int fd_pair[2] { 0 };
if (pipe(fd_pair) != 0) {
auto saved_errno = errno;
dbgln("Protocol: pipe() failed: {}", strerror(saved_errno));
return String { strerror(saved_errno) };
}
fcntl(fd_pair[1], F_SETFL, fcntl(fd_pair[1], F_GETFL) | O_NONBLOCK);
return Pipe { fd_pair[0], fd_pair[1] };
}
}
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