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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmPipeConnection.h"
#include "cmServer.h"
cmPipeConnection::cmPipeConnection(const std::string& name,
cmConnectionBufferStrategy* bufferStrategy)
: cmEventBasedConnection(bufferStrategy)
, PipeName(name)
{
}
void cmPipeConnection::Connect(uv_stream_t* server)
{
if (this->ClientPipe) {
// Accept and close all pipes but the first:
uv_pipe_t* rejectPipe = new uv_pipe_t();
uv_pipe_init(this->Server->GetLoop(), rejectPipe, 0);
uv_accept(server, reinterpret_cast<uv_stream_t*>(rejectPipe));
uv_close(reinterpret_cast<uv_handle_t*>(rejectPipe),
&on_close_delete<uv_pipe_t>);
return;
}
this->ClientPipe = new uv_pipe_t();
uv_pipe_init(this->Server->GetLoop(), this->ClientPipe, 0);
this->ClientPipe->data = static_cast<cmEventBasedConnection*>(this);
auto client = reinterpret_cast<uv_stream_t*>(this->ClientPipe);
if (uv_accept(server, client) != 0) {
uv_close(reinterpret_cast<uv_handle_t*>(client),
&on_close_delete<uv_pipe_t>);
this->ClientPipe = nullptr;
return;
}
this->ReadStream = client;
this->WriteStream = client;
uv_read_start(this->ReadStream, on_alloc_buffer, on_read);
Server->OnConnected(this);
}
bool cmPipeConnection::OnServeStart(std::string* errorMessage)
{
this->ServerPipe = new uv_pipe_t();
uv_pipe_init(this->Server->GetLoop(), this->ServerPipe, 0);
this->ServerPipe->data = static_cast<cmEventBasedConnection*>(this);
int r;
if ((r = uv_pipe_bind(this->ServerPipe, this->PipeName.c_str())) != 0) {
*errorMessage = std::string("Internal Error with ") + this->PipeName +
": " + uv_err_name(r);
return false;
}
auto serverStream = reinterpret_cast<uv_stream_t*>(this->ServerPipe);
if ((r = uv_listen(serverStream, 1, on_new_connection)) != 0) {
*errorMessage = std::string("Internal Error listening on ") +
this->PipeName + ": " + uv_err_name(r);
return false;
}
return cmConnection::OnServeStart(errorMessage);
}
bool cmPipeConnection::OnConnectionShuttingDown()
{
if (this->ClientPipe) {
uv_close(reinterpret_cast<uv_handle_t*>(this->ClientPipe),
&on_close_delete<uv_pipe_t>);
this->WriteStream->data = nullptr;
}
uv_close(reinterpret_cast<uv_handle_t*>(this->ServerPipe),
&on_close_delete<uv_pipe_t>);
this->ClientPipe = nullptr;
this->ServerPipe = nullptr;
this->WriteStream = nullptr;
this->ReadStream = nullptr;
return cmEventBasedConnection::OnConnectionShuttingDown();
}
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