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urlmon: Avoid multiple InternetQueryDataAvailable calls in pending state.

This commit is contained in:
Jacek Caban 2011-05-26 13:34:11 +02:00 committed by Alexandre Julliard
parent eaaf157f6c
commit dd61ebe6cf
1 changed files with 21 additions and 21 deletions
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10
dlls/urlmon/protocol.c
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@ -335,7 +335,7 @@ HRESULT protocol_continue(Protocol *protocol, PROTOCOLDATA *data)
protocol->flags |= FLAG_FIRST_CONTINUE_COMPLETE; protocol->flags |= FLAG_FIRST_CONTINUE_COMPLETE;
} }
if(data->pData >= (LPVOID)BINDSTATUS_DOWNLOADINGDATA) { if(data->pData >= (LPVOID)BINDSTATUS_DOWNLOADINGDATA && !protocol->available_bytes) {
BOOL res; BOOL res;
/* InternetQueryDataAvailable may immediately fork and perform its asynchronous /* InternetQueryDataAvailable may immediately fork and perform its asynchronous
@ -367,13 +367,12 @@ HRESULT protocol_read(Protocol *protocol, void *buf, ULONG size, ULONG *read_ret
return S_FALSE; return S_FALSE;
} }
if(!(protocol->flags & FLAG_REQUEST_COMPLETE)) { if(!(protocol->flags & FLAG_REQUEST_COMPLETE) || !protocol->available_bytes) {
*read_ret = 0; *read_ret = 0;
return E_PENDING; return E_PENDING;
} }
while(read < size) { while(read < size && protocol->available_bytes) {
if(protocol->available_bytes) {
ULONG len; ULONG len;
res = InternetReadFile(protocol->request, ((BYTE *)buf)+read, res = InternetReadFile(protocol->request, ((BYTE *)buf)+read,
@ -393,7 +392,8 @@ HRESULT protocol_read(Protocol *protocol, void *buf, ULONG size, ULONG *read_ret
read += len; read += len;
protocol->current_position += len; protocol->current_position += len;
protocol->available_bytes -= len; protocol->available_bytes -= len;
}else {
if(!protocol->available_bytes) {
/* InternetQueryDataAvailable may immediately fork and perform its asynchronous /* InternetQueryDataAvailable may immediately fork and perform its asynchronous
* read, so clear the flag _before_ calling so it does not incorrectly get cleared * read, so clear the flag _before_ calling so it does not incorrectly get cleared
* after the status callback is called */ * after the status callback is called */