ASSERT(pNode);auto&vBuffer = pNode->Get();conststd::size_tuRemaining = uSize - uTotal;constautouAvail = vBuffer.m_uWrite - vBuffer.m_uRead;if(uRemaining < uAvail){auto&vNewBuffer = xChunk::PushPooled(sbufRet.x_lstBuffers); vNewBuffer.m_uRead =0; vNewBuffer.m_uWrite = uRe...
#include "stream_buffer.h" #if( configUSE_TASK_NOTIFICATIONS != 1 ) #error configUSE_TASK_NOTIFICATIONS must be set to 1 to build stream_buffer.c #endif /* Lint e961, e9021 and e750 are suppressed as a MISRA exception justified because the MPU ports require MPU_WRAPPERS_INCLUDED_...
buffer =Stream_Buffer(pdu->s);if(!(pdu->Flags & RPC_PDU_FLAG_STUB)) buffer = &buffer[24]; offset =0; rpc_client_receive_pool_return(rpc, pdu);returnTRUE; } 开发者ID:Arkantos7,项目名称:FreeRDP,代码行数:25,代码来源:tsg.c 示例4: rdpdr_server_send_client_id_confirm ▲点赞 2▼ ...
int_type overflow( int_type c) { cout<<"overflow"<<endl;returnc; } streambuf* setbuf(char*s, streamsize n) { setp(s, s+n); setg(s, s, s+n);returnthis; } int_type underflow()override{ cout<<"here"<<endl; memset(buffer,'w',10); setg(buffer, buffer, buffer+10);return'...
("test.txt");7if(ifs.good())8{9std::streambuf *pbuf =ifs.rdbuf();10charc;11ifs >>c;12std::streamsize size = pbuf->in_avail();13std::cout <<"first character in file:"<< c <<'\n';14std::cout << size <<"characters in buffer after it\n";15}16ifs.close();1718return...
prebuffer::overflow(int_type c){std::cout<<"Overflow Happend"<<std::endl;if(!(m_mode&std::ios::out)||!is_open())returnEOF;if(c!=EOF){*pptr()=c;pbump(1);}if(flushoutput()==EOF){return-1;}returnc;}intprebuffer::flushoutput(){if(!(m_mode&std::ios::out)||!is_open(...
全文近7000字。本文会先通过用 fs.readFile 和 fs.createReadStream分别读200MB的文件,对比内存使用情况,来聊聊为什么node需要引入Buffer和Stream;接着会聊四类Stream、stream的highWaterMark和“背压问题”、B…
Buffer是数据以二进制形式临时存放在内存中的物理映射,stream为搬运数据的传送带和加工器,有方向、状态、缓冲大小。 比如我们实现一个将图片和音频读取到内存然后加工为的视频程序,类似于将原料运输到工厂然后加工为月饼的流程。 Buffer 简介 缓冲区 数据的移动是为了处理或读取它,如果数据到达的速度比进程消耗的速度快...
// basic_streambuf_in_avail.cpp // compile with: /EHsc #include <iostream> int main( ) { using namespace std; char c; // cin's buffer is empty, in_avail will return 0 cout << cin.rdbuf( )->in_avail( ) << endl; cin >> c; cout << cin.rdbuf( )->in_avail( ) << end...
sputbackc Attempts to move the get pointer back one position. sgetn Gets a sequence of characters from thestreambufobject’s buffer. Character Output Functions — Public Members out_waiting Returns the number of characters in the put area. ...