本文整理汇总了C++中buf_t::ptr方法的典型用法代码示例。如果您正苦于以下问题：C++ buf_t::ptr方法的具体用法？C++ buf_t::ptr怎么用？C++ buf_t::ptr使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类buf_t的用法示例。
在下文中一共展示了buf_t::ptr方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: MSG_CompressMinilzo
//
// MSG_CompressMinilzo
//
bool MSG_CompressMinilzo (buf_t &buf, size_t start_offset, size_t write_gap)
{
if(buf.size() < MINILZO_COMPRESS_MINPACKETSIZE)
return false;
lzo_uint outlen = OUT_LEN(buf.maxsize() - start_offset - write_gap);
size_t total_len = outlen + start_offset + write_gap;
if(compressed.maxsize() < total_len)
compressed.resize(total_len);
int r = lzo1x_1_compress (buf.ptr() + start_offset,
buf.size() - start_offset,
compressed.ptr() + start_offset + write_gap,
&outlen,
wrkmem);
// worth the effort?
if(r != LZO_E_OK || outlen >= (buf.size() - start_offset - write_gap))
return false;
memcpy(compressed.ptr(), buf.ptr(), start_offset);
SZ_Clear(&buf);
MSG_WriteChunk(&buf, compressed.ptr(), outlen + start_offset + write_gap);
return true;
}示例2: MSG_DecompressMinilzo
//
// MSG_DecompressMinilzo
//
bool MSG_DecompressMinilzo ()
{
// decompress back onto the receive buffer
size_t left = MSG_BytesLeft();
if(decompressed.maxsize() < net_message.maxsize())
decompressed.resize(net_message.maxsize());
lzo_uint newlen = net_message.maxsize();
unsigned int r = lzo1x_decompress_safe (net_message.ptr() + net_message.BytesRead(), left, decompressed.ptr(), &newlen, NULL);
if(r != LZO_E_OK)
{
Printf(PRINT_HIGH, "Error: minilzo packet decompression failed with error %X\n", r);
return false;
}
net_message.clear();
memcpy(net_message.ptr(), decompressed.ptr(), newlen);
net_message.cursize = newlen;
return true;
}示例3: NET_SendPacket
void NET_SendPacket (buf_t &buf, netadr_t &to)
{
int ret;
struct sockaddr_in addr;
NetadrToSockadr (&to, &addr);
ret = sendto (net_socket, (const char *)buf.ptr(), buf.size(), 0, (struct sockaddr *)&addr, sizeof(addr));
buf.clear();
if (ret == -1)
{
#ifdef _WIN32
int err = WSAGetLastError();
// wouldblock is silent
if (err == WSAEWOULDBLOCK)
return;
#else
if (errno == EWOULDBLOCK)
return;
if (errno == ECONNREFUSED)
return;
Printf (PRINT_HIGH, "NET_SendPacket: %s\n", strerror(errno));
#endif
}
}示例4: SV_CompressPacket
//
// SV_CompressPacket
//
// [Russell] - reason this was failing is because of huffman routines, so just
// use minilzo for now (cuts a packet size down by roughly 45%), huffman is the
// if 0'd sections
void SV_CompressPacket(buf_t &send, unsigned int reserved, client_t *cl)
{
if(plain.maxsize() < send.maxsize())
plain.resize(send.maxsize());
plain.setcursize(send.size());
memcpy(plain.ptr(), send.ptr(), send.size());
byte method = 0;
int need_gap = 2; // for svc_compressed and method, below
#if 0
if(MSG_CompressAdaptive(cl->compressor.get_codec(), send, reserved, need_gap))
{
reserved += need_gap;
need_gap = 0;
method |= adaptive_mask;
if(cl->compressor.get_codec_id())
method |= adaptive_select_mask;
}
#endif
DPrintf("SV_CompressPacket stage 2: %x %d\n", (int)method, (int)send.size());
if(MSG_CompressMinilzo(send, reserved, need_gap))
method |= minilzo_mask;
if((method & adaptive_mask) || (method & minilzo_mask))
{
#if 0
if(cl->compressor.packet_sent(cl->sequence - 1, plain.ptr() + sizeof(int), plain.size() - sizeof(int)))
method |= adaptive_record_mask;
#endif
send.ptr()[sizeof(int)] = svc_compressed;
send.ptr()[sizeof(int) + 1] = method;
}
DPrintf("SV_CompressPacket %x %d\n", (int)method, (int)send.size());
}示例5: MSG_DecompressAdaptive
//
// MSG_DecompressAdaptive
//
bool MSG_DecompressAdaptive (huffman &huff)
{
// decompress back onto the receive buffer
size_t left = MSG_BytesLeft();
if(decompressed.maxsize() < net_message.maxsize())
decompressed.resize(net_message.maxsize());
size_t newlen = net_message.maxsize();
bool r = huff.decompress (net_message.ptr() + net_message.BytesRead(), left, decompressed.ptr(), newlen);
if(!r)
return false;
net_message.clear();
memcpy(net_message.ptr(), decompressed.ptr(), newlen);
net_message.cursize = newlen;
return true;
}示例6: MSG_CompressAdaptive
//
// MSG_CompressAdaptive
//
bool MSG_CompressAdaptive (huffman &huff, buf_t &buf, size_t start_offset, size_t write_gap)
{
size_t outlen = OUT_LEN(buf.maxsize() - start_offset - write_gap);
size_t total_len = outlen + start_offset + write_gap;
if(compressed.maxsize() < total_len)
compressed.resize(total_len);
bool r = huff.compress (buf.ptr() + start_offset,
buf.size() - start_offset,
compressed.ptr() + start_offset + write_gap,
outlen);
// worth the effort?
if(!r || outlen >= (buf.size() - start_offset - write_gap))
return false;
memcpy(compressed.ptr(), buf.ptr(), start_offset);
SZ_Clear(&buf);
MSG_WriteChunk(&buf, compressed.ptr(), outlen + start_offset + write_gap);
return true;
}示例7: NET_SendPacket
void NET_SendPacket (buf_t &buf, netadr_t &to)
{
int ret;
struct sockaddr_in addr;
// [SL] 2011-07-06 - Don't try to send a packet if we're not really connected
// (eg, a netdemo is being played back)
if (simulated_connection)
{
buf.clear();
return;
}
NetadrToSockadr (&to, &addr);
ret = sendto (inet_socket, (const char *)buf.ptr(), buf.size(), 0, (struct sockaddr *)&addr, sizeof(addr));
buf.clear();
if (ret == -1)
{
#ifdef _WIN32
int err = WSAGetLastError();
// wouldblock is silent
if (err == WSAEWOULDBLOCK)
return;
#else
if (errno == EWOULDBLOCK)
return;
if (errno == ECONNREFUSED)
return;
Printf (PRINT_HIGH, "NET_SendPacket: %s\n", strerror(errno));
#endif
}
}