Created a cross-platform socket shim

common/cross_sockets/CMakeLists.txt

@@ -0,0 +1,12 @@
+add_library(cross_sockets
+        SHARED
+        "xsocket.h"
+         "xsocket.cpp")
+
+IF (WIN32)
+  # set stuff for windows
+  target_link_libraries(cross_sockets wsock32 ws2_32)
+ELSE()
+  # set stuff for other systems
+  target_link_libraries(cross_sockets)
+ENDIF()

common/cross_sockets/xsocket.cpp

@@ -0,0 +1,45 @@
+#ifdef __linux
+#include <sys/socket.h>
+#include <netinet/tcp.h>
+#include <unistd.h>
+#elif _WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <WinSock2.h>
+#include <WS2tcpip.h>
+#endif
+
+void close_socket(int sock) {
+  if (sock < 0) {
+    return;
+  }
+#ifdef __linux
+  close(sock);
+#elif _WIN32
+  closesocket(sock);
+#endif
+}
+
+int set_socket_option(int socket, int level, int optname, int optval, int optlen) {
+#ifdef __linux
+  return setsockopt(socket, level, optname, &optval, optlen);
+#elif _WIN32
+  const char optVal = optval;
+  return setsockopt(socket, level, optname, &optVal, optlen);
+#endif
+}
+
+int write_to_socket(int socket, const char* buf, int len) {
+#ifdef __linux
+  return write(socket, buf, len);
+#elif _WIN32
+  return send(socket, buf, len, 0);
+#endif
+}
+
+int read_from_socket(int socket, char* buf, int len) {
+#ifdef __linux
+  return read(socket, buf, len);
+#elif _WIN32
+  return recv(socket, buf, len, 0);
+#endif
+}

common/cross_sockets/xsocket.h

@@ -0,0 +1,18 @@
+#ifdef __linux
+#include <sys/socket.h>
+#include <netinet/tcp.h>
+#include <unistd.h>
+#elif _WIN32
+#include <WinSock2.h>
+#endif
+
+#ifdef __linux
+const int TCP_SOCKET_LEVEL = SOL_TCP;
+#elif _WIN32
+const int TCP_SOCKET_LEVEL = IPPROTO_IP;
+#endif
+
+void close_socket(int sock);
+int set_socket_option(int socket, int level, int optname, int optval, int optlen);
+int write_to_socket(int socket, const char* buf, int len);
+int read_from_socket(int socket, char* buf, int len);