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-rw-r--r--thirdparty/spdlog/details/tcp_client-windows.h175
1 files changed, 175 insertions, 0 deletions
diff --git a/thirdparty/spdlog/details/tcp_client-windows.h b/thirdparty/spdlog/details/tcp_client-windows.h
new file mode 100644
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+++ b/thirdparty/spdlog/details/tcp_client-windows.h
@@ -0,0 +1,175 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#define WIN32_LEAN_AND_MEAN
+// tcp client helper
+#include <spdlog/common.h>
+#include <spdlog/details/os.h>
+
+#include <winsock2.h>
+#include <windows.h>
+#include <ws2tcpip.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string>
+
+#pragma comment(lib, "Ws2_32.lib")
+#pragma comment(lib, "Mswsock.lib")
+#pragma comment(lib, "AdvApi32.lib")
+
+namespace spdlog {
+namespace details {
+class tcp_client
+{
+ SOCKET socket_ = INVALID_SOCKET;
+
+ static bool winsock_initialized_()
+ {
+ SOCKET s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+ if (s == INVALID_SOCKET)
+ {
+ return false;
+ }
+ else
+ {
+ closesocket(s);
+ return true;
+ }
+ }
+
+ static void init_winsock_()
+ {
+ WSADATA wsaData;
+ auto rv = WSAStartup(MAKEWORD(2, 2), &wsaData);
+ if (rv != 0)
+ {
+ throw_winsock_error_("WSAStartup failed", ::WSAGetLastError());
+ }
+ }
+
+ static void throw_winsock_error_(const std::string &msg, int last_error)
+ {
+ char buf[512];
+ ::FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, last_error,
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), buf, (sizeof(buf) / sizeof(char)), NULL);
+
+ throw_spdlog_ex(fmt::format("tcp_sink - {}: {}", msg, buf));
+ }
+
+public:
+ bool is_connected() const
+ {
+ return socket_ != INVALID_SOCKET;
+ }
+
+ void close()
+ {
+ ::closesocket(socket_);
+ socket_ = INVALID_SOCKET;
+ WSACleanup();
+ }
+
+ SOCKET fd() const
+ {
+ return socket_;
+ }
+
+ ~tcp_client()
+ {
+ close();
+ }
+
+ // try to connect or throw on failure
+ void connect(const std::string &host, int port)
+ {
+ // initialize winsock if needed
+ if (!winsock_initialized_())
+ {
+ init_winsock_();
+ }
+
+ if (is_connected())
+ {
+ close();
+ }
+ struct addrinfo hints
+ {};
+ ZeroMemory(&hints, sizeof(hints));
+
+ hints.ai_family = AF_INET; // IPv4
+ hints.ai_socktype = SOCK_STREAM; // TCP
+ hints.ai_flags = AI_NUMERICSERV; // port passed as as numeric value
+ hints.ai_protocol = 0;
+
+ auto port_str = std::to_string(port);
+ struct addrinfo *addrinfo_result;
+ auto rv = ::getaddrinfo(host.c_str(), port_str.c_str(), &hints, &addrinfo_result);
+ int last_error = 0;
+ if (rv != 0)
+ {
+ last_error = ::WSAGetLastError();
+ WSACleanup();
+ throw_winsock_error_("getaddrinfo failed", last_error);
+ }
+
+ // Try each address until we successfully connect(2).
+
+ for (auto *rp = addrinfo_result; rp != nullptr; rp = rp->ai_next)
+ {
+ socket_ = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
+ if (socket_ == INVALID_SOCKET)
+ {
+ last_error = ::WSAGetLastError();
+ WSACleanup();
+ continue;
+ }
+ if (::connect(socket_, rp->ai_addr, (int)rp->ai_addrlen) == 0)
+ {
+ break;
+ }
+ else
+ {
+ last_error = ::WSAGetLastError();
+ close();
+ }
+ }
+ ::freeaddrinfo(addrinfo_result);
+ if (socket_ == INVALID_SOCKET)
+ {
+ WSACleanup();
+ throw_winsock_error_("connect failed", last_error);
+ }
+
+ // set TCP_NODELAY
+ int enable_flag = 1;
+ ::setsockopt(socket_, IPPROTO_TCP, TCP_NODELAY, (char *)&enable_flag, sizeof(enable_flag));
+ }
+
+ // Send exactly n_bytes of the given data.
+ // On error close the connection and throw.
+ void send(const char *data, size_t n_bytes)
+ {
+ size_t bytes_sent = 0;
+ while (bytes_sent < n_bytes)
+ {
+ const int send_flags = 0;
+ auto write_result = ::send(socket_, data + bytes_sent, (int)(n_bytes - bytes_sent), send_flags);
+ if (write_result == SOCKET_ERROR)
+ {
+ int last_error = ::WSAGetLastError();
+ close();
+ throw_winsock_error_("send failed", last_error);
+ }
+
+ if (write_result == 0) // (probably should not happen but in any case..)
+ {
+ break;
+ }
+ bytes_sent += static_cast<size_t>(write_result);
+ }
+ }
+};
+} // namespace details
+} // namespace spdlog