Add writev() wrapper for Windows

[user/henk/code/inspircd.git] / win / inspircd_win32wrapper.h

diff --git a/win/inspircd_win32wrapper.h b/win/inspircd_win32wrapper.h
index a19bdf857a2f18d09ced8235d449a3f8d0cf14c1..361724a2faa2ff76d82a0c1c1efc5f46d89f803a 100644 (file)
--- a/win/inspircd_win32wrapper.h
+++ b/win/inspircd_win32wrapper.h
@@ -218,3 +218,20 @@ private:
 
 // Same value as EXIT_STATUS_FORK (EXIT_STATUS_FORK is unused on Windows)
 #define EXIT_STATUS_SERVICE 4
+
+// Windows WSABUF with POSIX field names
+struct WindowsIOVec
+{
+       // POSIX iovec has iov_base then iov_len, WSABUF in Windows has the fields in reverse order
+       u_long iov_len; // Number of bytes to transfer
+       char FAR* iov_base; // Starting address
+};
+
+inline ssize_t writev(int fd, const WindowsIOVec* iov, int count)
+{
+       DWORD sent;
+       int ret = WSASend(fd, reinterpret_cast<LPWSABUF>(const_cast<WindowsIOVec*>(iov)), count, &sent, 0, NULL, NULL);
+       if (ret == 0)
+               return sent;
+       return -1;
+}