void BlobBuffer::AppendBlobContentChar(const unsigned char BlobChar)
{
//如果要增加的长度加上当前实际长度大于总缓冲大小的话
const int nBlobLen = 1;
if (m_lBufferLen< m_lBlobLen + nBlobLen)
IncreaseBufferSize(nBlobLen, false);
char temp[1];
temp[0] = BlobChar;
memcpy(m_BlobPtr + m_lBlobLen, &temp, nBlobLen);
m_lBlobLen += nBlobLen;
}
void BlobBuffer::AppendBlobContent(const unsigned char *BlobPtr,unsigned long nBlobLen)
{
if(nBlobLen>0)
{
//如果要增加的长度加上当前实际长度大于总缓冲大小的话
if(m_lBufferLen< m_lBlobLen+nBlobLen)
IncreaseBufferSize(nBlobLen, true);
memcpy(m_BlobPtr+m_lBlobLen,BlobPtr,nBlobLen);
m_lBlobLen += nBlobLen;
}
}
void BlobBuffer::AllocBuffer(unsigned long nBufSize)
{
if (nBufSize > this->GetBlobBufferLength())
{
IncreaseBufferSize(nBufSize - this->GetBlobBufferLength(), false);
m_lBlobLen = nBufSize;
}
else
{
m_lBlobLen = nBufSize;
}
}
void BlobBuffer::SetBlobContent(const unsigned char *BlobPtr,unsigned long nBlobLen)
{
if(nBlobLen>0)
{
//如果要增加的长度加上当前实际长度大于总缓冲大小的话
if(m_lBufferLen< m_lBlobLen+nBlobLen)
IncreaseBufferSize(nBlobLen, false);
ClearContent();
memcpy(m_BlobPtr,BlobPtr,nBlobLen);
m_lBlobLen = nBlobLen;
}
else
Clear();
}
/**
* Read data until we reach the number of bytes we required or there is no more
* data to be read
*/
void IncomingStreamTransport::ReadRequiredData() {
if (m_outstanding_data == 0)
return;
if (m_outstanding_data > FreeSpace())
IncreaseBufferSize(DataLength() + m_outstanding_data);
unsigned int data_read;
int ok = m_descriptor->Receive(m_data_end,
m_outstanding_data,
data_read);
if (ok != 0)
OLA_WARN << "tcp rx failed";
OLA_DEBUG << "read " << data_read;
m_data_end += data_read;
m_outstanding_data -= data_read;
}
fs_ret_t FileSource::GetBuffer( size_t N = 1024 )
{
while ( !SourceEmpty() && accum_len < N )
{
size_t N_new = N - accum_len;
// Check to see if the buffer is large enough, if not increase size
unsigned long worst_case_size = accum_len + N;
if ( accum_total_len < worst_case_size )
IncreaseBufferSize( worst_case_size - accum_total_len );
size_t successfully_read_bytes = sizeof(unsigned char) * fread ( (void*) (accum + accum_len), sizeof(unsigned char), N_new, file_p );
if ( successfully_read_bytes == 0 )
{
IterateFileList();
continue;
}
accum_len += successfully_read_bytes;
current_file_bytes_read += successfully_read_bytes;
bytes_read += successfully_read_bytes;
}
time_t current_time = time( NULL );
if ( difftime( current_time, previous_time ) > 3.0 )
{
char BPS_str[100];
GetHumanReadableDataSize( BPS_str, double(bytes_read) / difftime( current_time, previous_time ) );
printf("Throughput: %s/s; Progress: %.2f%%\n", BPS_str, ((double) current_file_bytes_read) / ((double) current_file_size) * 100.0 );
bytes_read = 0;
previous_time = current_time;
}
fs_ret_t ret_s;
ret_s.accum = accum;
ret_s.accum_len = accum_len;
ret_s.accum_total_len = accum_total_len;
return ret_s;
}
bool BlobBuffer::LoadBlobFromFile(const char *sFileName)
{
FILE *fp;
long nReadCnt;
fp = fopen(sFileName,"rb");
if(fp == NULL)
{
return false;
}
fseek(fp,0,SEEK_END);
long file_size = ftell(fp);
fseek(fp,0,SEEK_SET);
Clear();
IncreaseBufferSize(file_size, false);
if(0 == m_BlobPtr )
{
fclose(fp);
return false;
}
nReadCnt = (long)fread(m_BlobPtr, 1, file_size, fp);
if( nReadCnt<file_size )
{
if(ferror(fp))
{
Clear();
return false;
}
}
m_lBlobLen = file_size;
fclose(fp);
return true;
}
