塊傳輸編碼

Question

我開發一個HTTP服務器， 我的響應代碼總結是這樣的：

PHTTP_DATA_CHUNK p = new HTTP_DATA_CHUNK[count]; 
for (int i = 0; i<count; i++) 
{ 
    p[i].DataChunkType = HttpDataChunkFromMemory; 
    p[i].FromMemory.pBuffer = "dfdff"; 
    p[i].FromMemory.BufferLength = 5; 
} 

HTTP_RESPONSE response; 
ZeroMemory(&response,sizeof(HTTP_RESPONSE)); 
PCSTR Reason="OK"; 
response.StatusCode=200; 
response.pReason=Reason; 
response.ReasonLength=strlen(Reason); 
ADD_KNOWN_HEADER(response, HttpHeaderContentType, "text/html"); 
ADD_KNOWN_HEADER(response, HttpHeaderConnection, "keep-alive"); 
ADD_KNOWN_HEADER(response, HttpHeaderTransferEncoding, "chunked"); 
ADD_KNOWN_HEADER(response, HttpHeaderContentLength, chLen); 

response.EntityChunkCount = count; 
response.pEntityChunks=p; 
ULONG BytesSent; 
ULONG result = HttpSendHttpResponse(ReqQueueHandle, HttpRequest->RequestId, 
              0, &response, NULL,&BytesSent, NULL, 
              0,NULL,NULL, NULL); 

但結果是87！ 現在，如果我刪除此行的代碼：

ADD_KNOWN_HEADER(response, HttpHeaderTransferEncoding, "chunked"); 

結果是0，我的響應發送給客戶端。 如何使用Chunked transfer encoding？

Answer 1

當我重新排列以下列方式代碼，反應正確發送：

response.EntityChunkCount = 0; 
response.pEntityChunks=0; 
ULONG BytesSent; 
ULONG result = HttpSendHttpResponse(ReqQueueHandle, HttpRequest->requestId, 
              0, &response, NULL,&BytesSent, NULL, 
              0,NULL,NULL, NULL); 
for (/*buffers */) 
{ 
    PHTTP_DATA_CHUNK chunk; 
    chunk.DataChunkType = HttpDataChunkFromMemory; 
    chunk.FromMemory.pBuffer = buffer[i]; //--- "bufferLen\r\n .... \r\n" 
    chunk.FromMemory.BufferLength = len[i]; 
    HttpSendResponseEntityBody(ReqQueueHandle, HttpRequest->requestId, 
           HTT_SEND_RESPONSE_FLAG_MORE_DATA, 1, &chunk, 0 
           NULL, 0, NULL, NULL); 
} 

PHTTP_DATA_CHUNK chunkEnd; 
chunkEnd.DataChunkType = HttpDataChunkFromMemory; 
chunkEnd.FromMemory.pBuffer = "\r\n0\r\n"; 
chunkEnd.FromMemory.BufferLength = 5; 
HttpSendResponseEntityBody(ReqQueueHandle, HttpRequest->requestId, 
           HTT_SEND_RESPONSE_FLAG_DISCONNECT, 1, &chunkEnd, 0 
           NULL, 0, NULL, NULL);