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https://github.com/esphome/esphome.git
synced 2026-09-14 00:28:39 +00:00
J. Nick Koston
4a9d3da962
- Drop redundant cached_sock_ = nullptr assignment in close(). After closed_ = true the socket is a corpse and no ready() or other member access is valid, so the nulling is not load-bearing. The comment now explains why on both impl variants. - Reword the yield_with_select_ comment so the wake-source sentence reads as a complete list rather than a trailing fragment.
102 lines
3.0 KiB
C++
102 lines
3.0 KiB
C++
#include "esphome/core/defines.h"
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#include "esphome/core/helpers.h"
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#include "socket.h"
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#ifdef USE_SOCKET_IMPL_LWIP_SOCKETS
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#include <cstring>
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#include "esphome/core/application.h"
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namespace esphome::socket {
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LwIPSocketImpl::LwIPSocketImpl(int fd, bool monitor_loop) {
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this->fd_ = fd;
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if (!monitor_loop || this->fd_ < 0)
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return;
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#ifdef USE_LWIP_FAST_SELECT
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// Cache lwip_sock pointer (used by ready() for direct rcvevent reads) and hook the
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// netconn event callback so the main loop is notified via FreeRTOS task notifications.
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this->cached_sock_ = esphome_lwip_get_sock(this->fd_);
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if (this->cached_sock_ != nullptr) {
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esphome_lwip_hook_socket(this->cached_sock_);
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this->loop_monitored_ = true;
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}
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#else
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this->loop_monitored_ = App.register_socket_fd(this->fd_);
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#endif
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}
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LwIPSocketImpl::~LwIPSocketImpl() {
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if (!this->closed_) {
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this->close();
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}
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}
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int LwIPSocketImpl::close() {
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if (!this->closed_) {
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#ifndef USE_LWIP_FAST_SELECT
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// All LwIP sockets share the same static event_callback, so on the fast-select path
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// there is no per-socket unhook needed. cached_sock_ is not cleared because closed_
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// makes the socket a corpse — no ready() or other member access is valid afterwards.
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if (this->loop_monitored_) {
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App.unregister_socket_fd(this->fd_);
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}
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#endif
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int ret = lwip_close(this->fd_);
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this->closed_ = true;
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return ret;
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}
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return 0;
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}
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int LwIPSocketImpl::setblocking(bool blocking) {
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int fl = lwip_fcntl(this->fd_, F_GETFL, 0);
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if (blocking) {
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fl &= ~O_NONBLOCK;
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} else {
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fl |= O_NONBLOCK;
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}
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lwip_fcntl(this->fd_, F_SETFL, fl);
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return 0;
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}
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size_t LwIPSocketImpl::getpeername_to(std::span<char, SOCKADDR_STR_LEN> buf) {
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struct sockaddr_storage storage;
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socklen_t len = sizeof(storage);
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if (this->getpeername(reinterpret_cast<struct sockaddr *>(&storage), &len) != 0) {
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buf[0] = '\0';
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return 0;
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}
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return format_sockaddr_to(reinterpret_cast<struct sockaddr *>(&storage), len, buf);
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}
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size_t LwIPSocketImpl::getsockname_to(std::span<char, SOCKADDR_STR_LEN> buf) {
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struct sockaddr_storage storage;
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socklen_t len = sizeof(storage);
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if (this->getsockname(reinterpret_cast<struct sockaddr *>(&storage), &len) != 0) {
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buf[0] = '\0';
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return 0;
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}
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return format_sockaddr_to(reinterpret_cast<struct sockaddr *>(&storage), len, buf);
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}
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// Helper to create a socket with optional monitoring
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static std::unique_ptr<LwIPSocketImpl> create_socket(int domain, int type, int protocol, bool loop_monitored = false) {
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int ret = lwip_socket(domain, type, protocol);
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if (ret == -1)
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return nullptr;
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return make_unique<LwIPSocketImpl>(ret, loop_monitored);
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}
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std::unique_ptr<Socket> socket(int domain, int type, int protocol) {
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return create_socket(domain, type, protocol, false);
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}
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std::unique_ptr<Socket> socket_loop_monitored(int domain, int type, int protocol) {
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return create_socket(domain, type, protocol, true);
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}
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} // namespace esphome::socket
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#endif // USE_SOCKET_IMPL_LWIP_SOCKETS
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