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127 lines
4 KiB
C++
127 lines
4 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stratosphere.hpp>
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#include "dmnt2_htcs_session.hpp"
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#include "dmnt2_debug_log.hpp"
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namespace ams::dmnt {
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HtcsSession::HtcsSession(int fd) : m_socket(fd), m_valid(true) {
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/* Create our thread. */
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R_ABORT_UNLESS(os::CreateThread(std::addressof(m_receive_thread), ReceiveThreadEntry, this, m_receive_thread_stack, sizeof(m_receive_thread_stack), os::HighestThreadPriority - 1));
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/* Start our thread. */
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os::StartThread(std::addressof(m_receive_thread));
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/* Note that we connected. */
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AMS_DMNT2_GDB_LOG_INFO("Created Session %d\n", m_socket);
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}
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HtcsSession::~HtcsSession() {
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/* Note that we connected. */
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AMS_DMNT2_GDB_LOG_INFO("Closing Session %d\n", m_socket);
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/* Invalidate our receive buffer. */
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m_receive_buffer.Invalidate();
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/* Shutdown our socket. */
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htcs::Shutdown(m_socket, htcs::HTCS_SHUT_RDWR);
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/* Wait for our thread. */
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os::WaitThread(std::addressof(m_receive_thread));
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os::DestroyThread(std::addressof(m_receive_thread));
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/* Close our socket. */
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htcs::Close(m_socket);
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}
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bool HtcsSession::WaitToBeReadable() {
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return m_receive_buffer.WaitToBeReadable();
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}
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bool HtcsSession::WaitToBeReadable(TimeSpan timeout) {
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return m_receive_buffer.WaitToBeReadable(timeout);
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}
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util::optional<char> HtcsSession::GetChar() {
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/* Wait for us to have data. */
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m_receive_buffer.WaitToBeReadable();
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/* Get our data. */
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char c;
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if (m_receive_buffer.Read(std::addressof(c), sizeof(c)) > 0) {
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return c;
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} else {
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return util::nullopt;
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}
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}
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ssize_t HtcsSession::PutChar(char c) {
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/* Send the character. */
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const auto sent = htcs::Send(m_socket, std::addressof(c), sizeof(c), 0);
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if (sent < 0) {
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m_valid = false;
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}
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return sent;
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}
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ssize_t HtcsSession::PutString(const char *str) {
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/* Repeatedly send until all is sent. */
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const size_t len = std::strlen(str);
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size_t remaining = len;
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while (remaining > 0) {
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const auto sent = htcs::Send(m_socket, str, remaining, 0);
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if (sent >= 0) {
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remaining -= sent;
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str += sent;
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} else {
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m_valid = false;
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return sent;
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}
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}
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return len;
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}
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void HtcsSession::ReceiveThreadFunction() {
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/* Create temporary buffer. */
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u8 buffer[HtcsReceiveBuffer::ReceiveBufferSize];
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/* Loop receiving data. */
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while (true) {
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/* Receive data. */
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const auto res = htcs::Recv(m_socket, buffer, sizeof(buffer), 0);
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if (res > 0) {
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/* Write the data to our buffer. */
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m_receive_buffer.WaitToBeWritable();
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m_receive_buffer.Write(buffer, res);
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} else {
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/* Otherwise, if we got an error other than "try again", we're done. */
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if (htcs::GetLastError() != htcs::HTCS_EAGAIN) {
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AMS_DMNT2_GDB_LOG_INFO("Session %d invalid, res=%ld, err=%d\n", m_socket, res, static_cast<int>(htcs::GetLastError()));
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m_valid = false;
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break;
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}
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}
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}
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/* Invalidate our receive buffer. */
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m_receive_buffer.Invalidate();
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}
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}
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