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Network/TcpClient|UdpSocket: Add SendMultiple method

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To efficiently merge multiples buffers into a reduced number of network
packets
This commit is contained in:
Lynix
2017-01-27 14:51:01 +01:00
parent 1d6f22cd8a
commit ab3b730d21
10 changed files with 201 additions and 11 deletions
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51
src/Nazara/Network/Posix/SocketImpl.cpp
View File

@@ -577,6 +577,57 @@ namespace Nz
return true;
}
bool SocketImpl::SendMultiple(SocketHandle handle, const NetBuffer* buffers, std::size_t bufferCount, const IpAddress& to, int* sent, SocketError* error)
{
NazaraAssert(handle != InvalidHandle, "Invalid handle");
NazaraAssert(buffers && bufferCount > 0, "Invalid buffers");
StackAllocation memory = NazaraStackAllocation(bufferCount * sizeof(iovec));
iovec* sysBuffers = static_cast<iovec*>(memory.GetPtr());
for (std::size_t i = 0; i < bufferCount; ++i)
{
sysBuffers[i].iov_base = buffers[i].data;
sysBuffers[i].iov_len = buffers[i].dataLength;
}
struct msghdr header;
std::memset(&header, 0, sizeof(header);
IpAddressImpl::SockAddrBuffer nameBuffer;
header.msg_namelen = IpAddressImpl::ToSockAddr(to, nameBuffer.data());
header.msg_name = nameBuffer.data();
msgHdr.msg_iov = sysBuffers;
msgHdr.msg_iovlen = static_cast<int>(bufferCount);
int sentLength = sendmsg (socket, &msgHdr, MSG_NOSIGNAL);
if (byteSent == SOCKET_ERROR)
{
int errorCode = GetLastErrorCode();
switch (errorCode)
{
case EWOULDBLOCK:
byteSent = 0;
break;
default:
{
if (error)
*error = TranslateErrnoToResolveError(errorCode);
return false; //< Error
}
}
}
if (sent)
*sent = static_cast<int>(byteSent);
if (error)
*error = SocketError_NoError;
return true;
}
bool SocketImpl::SendTo(SocketHandle handle, const void* buffer, int length, const IpAddress& to, int* sent, SocketError* error)
{
NazaraAssert(handle != InvalidHandle, "Invalid handle");

1
src/Nazara/Network/Posix/SocketImpl.hpp
View File

@@ -64,6 +64,7 @@ namespace Nz
static bool ReceiveFrom(SocketHandle handle, void* buffer, int length, IpAddress* from, int* read, SocketError* error);
static bool Send(SocketHandle handle, const void* buffer, int length, int* sent, SocketError* error);
static bool SendMultiple(SocketHandle handle, const NetBuffer* buffers, std::size_t bufferCount, const IpAddress& to, int* sent, SocketError* error);
static bool SendTo(SocketHandle handle, const void* buffer, int length, const IpAddress& to, int* sent, SocketError* error);
static bool SetBlocking(SocketHandle handle, bool blocking, SocketError* error = nullptr);