Currently, writeBlocking(), writeFast(), & txStandBy() functions have a while loop that fetches the status byte twice when waiting for an ACK response. If we save the status byte from every SPI transaction as a private member (uint8_t), ...
I am trying to understand the write, writeFastand writeBlockingmethods but I need some answers: 1. writeFastand writeBlocking methods have in the code: while ((get_status () & (_BV (TX_FULL))) { So their main operation takes place when ...
National Institute of Justice (NIJ), Computer Forensic Tool Testing Project (http://www.ojp.usdoj.gov/nij/topics/ecrime/cftt.htm). National Institute of Justice (NIJ),Test Results for Hardware Write Block Device: FastBloc IDE (Firmware Version 16), NIJ Report NCJ 212956, Washington, DC (...
(Note that the non-blocking ReadLock#tryLock() and WriteLock#tryLock() methods do not honor this fair setting and will immediately acquire the lock if it is possible, regardless of waiting threads.) Reentrancy This lock allows both readers and writers to reacquire read or write locks in the...
IrpSp->Flags: If the SL_FORCE_DIRECT_WRITE flag is set, kernel-mode drivers can write to volume areas that they normally can't write to because of direct write blocking. Direct write blocking was implemented for security reasons in Windows Vista and later operating systems. This flag is che...
2. blocking的write只有在缓冲区足以放下整个buffer时才返回(与blocking read并不相同) nonblock write则是返回能够放下的字节数,之后调用则返回-1(errno = EAGAIN或EWOULDBLOCK) 对于blocking的write有个特例:当write正阻塞等待时对面关闭了socket,则write则会立即将剩余缓冲区填满并返回所写的字节数,再次调用则write...
对于1和2,采用write() -> read() -> write() -> read() ->...的序列,通过blocking read或者nonblock read+轮询的方式,应用程序基于可以保证正确的处理流程。而且对于3,kernel将这些事件的“通知”通过read/write的结果返回给应用层。这个也是TCP通信的难点。
Exclusively acquires the lock, blocking if necessary until available or the current thread is interrupted. C# Copy [Android.Runtime.Register("writeLockInterruptibly", "()J", "GetWriteLockInterruptiblyHandler", ApiSince=24)] public virtual long WriteLockInterruptibly (); Returns Int64 a ...
Copy void _ReadWriteBarrier(void); Requirements Expand table IntrinsicArchitecture _ReadWriteBarrier x86, IPF, x64 Header file<intrin.h> Remarks Blocking the optimization of reads and writes to global memory can be useful to ensure the state of global variables at a particular point in your cod...
A protection device provides write-once, read many capabilities for computer long-term storage devices, such as hard drives. The blocking device is placed between a host computer and a storage device. The blocking device intercepts communications between the host and the storage device and examines...