Hi,

I am developing a new module on C.
One of the requirements of my module is to receive and handle RPC over HTTP 
protocol.
RPC over HTTP opens two HTTP/1.1 requests:
One with request method RPC_IN_DATA to send data to the server, and second one 
with method RPC_OUT_DATA to send data back to the client. The body consists of 
raw binary data, and the connections are apparently re-used for several RPCs.
Here's an example of an IN connection header:
    RPC_IN_DATA /rpc/rpcproxy.dll?<exchange>:6002 HTTP/1.1
    Content-Length: 1073741824
    ...
After connections are established client sends on "IN" channel RPC message with 
104 bytes.

I use the following apache API's in order to read these client message.
ap_setup_client_block(userReq, REQUEST_CHUNKED_ERROR);
ap_should_client_block(userReq)
ap_get_client_block(userReq, buf, size)

The problem is "ap_should_client_block" function returns "1" (means there is 
message to read) but "ap_get_client_block" returns error (-1) and nothing read.

How should I read client's data?
Is there any other API for it?

Thanks,
Evgeny

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