int ConnReadRaw(TConn *c, char *buffer, uint32 len, uint32 timeout, int *readLen)
{
int bufflen = 0;
uint32 toread = len;
/* sanity */
if (!c || !buffer || !readLen) {
return FALSE;
}
bufflen = c->buffersize - c->bufferpos;
if (bufflen > 0)
{
if (toread > (size_t)bufflen)
toread = bufflen;
memcpy(buffer, c->buffer + c->bufferpos, toread);
c->bufferpos += toread;
*readLen = toread;
return TRUE;
}
else
{
/* we have to read from the socket */
if (SocketWait(&(c->socket),TRUE,FALSE,timeout*1000)==1)
{
uint32 avail=SocketAvailableReadBytes(&(c->socket));
if (avail < toread)
toread = avail;
*readLen = SocketRead(&(c->socket), buffer, toread);
if (*readLen > 0)
return TRUE;
}
*readLen = 0;
return FALSE;
}
}
abyss_bool
ConnRead(TConn * const connectionP,
uint32_t const timeout) {
/*----------------------------------------------------------------------------
Read some stuff on connection *connectionP from the socket.
Don't wait more than 'timeout' seconds for data to arrive. Fail if
nothing arrives within that time.
-----------------------------------------------------------------------------*/
time_t const deadline = time(NULL) + timeout;
abyss_bool cantGetData;
abyss_bool gotData;
cantGetData = FALSE;
gotData = FALSE;
while (!gotData && !cantGetData) {
int const timeLeft = deadline - time(NULL);
if (timeLeft <= 0)
cantGetData = TRUE;
else {
int rc;
rc = SocketWait(connectionP->socketP, TRUE, FALSE,
timeLeft * 1000);
if (rc != 1)
cantGetData = TRUE;
else {
uint32_t bytesAvail;
bytesAvail = SocketAvailableReadBytes(connectionP->socketP);
if (bytesAvail <= 0)
cantGetData = TRUE;
else {
uint32_t const bytesToRead =
MIN(bytesAvail, bufferSpace(connectionP)-1);
uint32_t bytesRead;
bytesRead = SocketRead(
connectionP->socketP,
(unsigned char*)connectionP->buffer + connectionP->buffersize,
bytesToRead);
if (bytesRead > 0) {
traceSocketRead(connectionP, bytesRead);
connectionP->inbytes += bytesRead;
connectionP->buffersize += bytesRead;
connectionP->buffer[connectionP->buffersize] = '\0';
gotData = TRUE;
}
}
}
}
}
if (gotData)
return TRUE;
else
return FALSE;
}