Files
EMS-ESP32/lib/espMqttClient/src/Transport/ClientPosix.cpp
2024-06-04 21:19:48 +02:00

93 lines
1.8 KiB
C++

/*
Copyright (c) 2022 Bert Melis. All rights reserved.
This work is licensed under the terms of the MIT license.
For a copy, see <https://opensource.org/licenses/MIT> or
the LICENSE file.
*/
#include "ClientPosix.h"
#if defined(__linux__)
namespace espMqttClientInternals {
ClientPosix::ClientPosix()
: _sockfd(-1)
, _host() {
// empty
}
ClientPosix::~ClientPosix() {
ClientPosix::stop();
}
bool ClientPosix::connect(IPAddress ip, uint16_t port) {
if (connected()) stop();
_sockfd = ::socket(AF_INET, SOCK_STREAM, 0);
if (_sockfd < 0) {
emc_log_e("Error %d opening socket", errno);
}
int flag = 1;
if (setsockopt(_sockfd, IPPROTO_TCP, TCP_NODELAY, &flag, sizeof(int)) < 0) {
emc_log_e("Error %d disabling nagle", errno);
}
memset(&_host, 0, sizeof(_host));
_host.sin_family = AF_INET;
_host.sin_addr.s_addr = htonl(uint32_t(ip));
_host.sin_port = ::htons(port);
int ret = ::connect(_sockfd, reinterpret_cast<sockaddr*>(&_host), sizeof(_host));
if (ret < 0) {
emc_log_e("Error connecting: %d - (%d) %s", ret, errno, strerror(errno));
return false;
}
emc_log_i("Connected");
return true;
}
bool ClientPosix::connect(const char* host, uint16_t port) {
// tbi
(void) host;
(void) port;
return false;
}
size_t ClientPosix::write(const uint8_t* buf, size_t size) {
return ::send(_sockfd, buf, size, 0);
}
int ClientPosix::read(uint8_t* buf, size_t size) {
int ret = ::recv(_sockfd, buf, size, MSG_DONTWAIT);
/*
if (ret < 0) {
emc_log_e("Error reading: %s", strerror(errno));
}
*/
return ret;
}
void ClientPosix::stop() {
if (_sockfd >= 0) {
::close(_sockfd);
_sockfd = -1;
}
}
bool ClientPosix::connected() {
return _sockfd >= 0;
}
bool ClientPosix::disconnected() {
return _sockfd < 0;
}
} // namespace espMqttClientInternals
#endif