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don't do MSS segmentation in TCP's SendData(), _SendQueue() already does the appropriate work.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20674 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Hugo Santos 2007-04-13 03:45:28 +00:00
parent d438fa4c12
commit ab7e75e74d
1 changed files with 7 additions and 44 deletions
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51
src/add-ons/kernel/network/protocols/tcp/TCPEndpoint.cpp
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@ -480,57 +480,20 @@ TCPEndpoint::SendData(net_buffer *buffer)
return EPIPE;
}
size_t bytesLeft = buffer->size;
if (buffer->size > 0) {
bigtime_t timeout = absolute_timeout(socket->send.timeout);
bigtime_t timeout = absolute_timeout(socket->send.timeout);
do {
// TODO we should not segment here, but on TX.
net_buffer *chunk;
if (bytesLeft > socket->send.buffer_size) {
// divide the buffer in multiple of the maximum segment size
size_t chunkSize = ((socket->send.buffer_size >> 1) / fSendMaxSegmentSize)
* fSendMaxSegmentSize;
chunk = gBufferModule->split(buffer, chunkSize);
TRACE(" Send() split buffer at %lu (buffer size %lu, mss %lu) -> %p",
chunkSize, socket->send.buffer_size, fSendMaxSegmentSize, chunk);
if (chunk == NULL)
return B_NO_MEMORY;
} else
chunk = buffer;
while (fSendQueue.Free() < chunk->size) {
while (fSendQueue.Free() < buffer->size) {
status_t status = fSendList.Wait(lock, timeout);
if (status < B_OK)
return posix_error(status);
}
// TODO: check state!
fSendQueue.Add(buffer);
}
if (chunk->size == 0) {
gBufferModule->free(chunk);
return B_OK;
}
size_t chunkSize = chunk->size;
fSendQueue.Add(chunk);
status_t status = B_OK;
if (fState == ESTABLISHED || fState == FINISH_RECEIVED)
status = _SendQueued();
if (buffer != chunk) {
// as long as we didn't eat the buffer, we can still return an error code
// (we don't own the buffer if we return an error code)
if (status < B_OK)
return status;
}
bytesLeft -= chunkSize;
} while (bytesLeft > 0);
if (fState == ESTABLISHED || fState == FINISH_RECEIVED)
_SendQueued();
return B_OK;
}