一个线程安全的函数(Thread-Safe Functions)可以从多个线程中同时被调用,即使这些同时发生的调用都使用了同一份共享的数据。这是因为对于一个线程安全的函数,各个线程对共享数据的引用是串行的。 一个可重入的函数(Reentrant Functions)也可以从多个线程中被同时调用,但前提条件是这些同时发生的调用使用的都是各自独立的...
MT 是 multi thread 的意思，更多的详见man attributes：MT-SafeMT-Safe or Thread-Safe functions...
Wikipedia is just as helpful in defining thread safety: "A piece of code is thread-safe if it functions correctly during simultaneous execution by multiple threads." As with photogenicity, this is obvious question-begging. When we ask "is this code thread safe?" all we are really asking is...
A.31 Thread-Safe Lock Functions项目 2011/02/28 The following C++ example demonstrates how to initialize an array of locks in a parallel region by using omp_init_lock (Section 3.2.1 on page 42). Example Code 复制 // A_13_omp_init_lock.cpp // compile with: /openmp #include <omp.h...
Dasynq is written in C++11, using POSIX functions and some OS-specific system calls. See theweb sitefor more information. Event loops An event loop library provides a means for waiting on events that occur asynchronously. One good example is network input/output; in a server with multiple cl...
Deadlock can also be caused by one JS+// thread calling the thread-safe function of another JS thread because+// if two JS threads call each other's thread-safe functions blockingly+// when both their queues are full they will both deadlock.+return napi_would_deadlock;} cond->Wait(...
Framework. Specifically, I'm going to explain the motivation for why SyncBlocks and Monitors were designed the way they are and how they work. Then, at the end of this column, I'm going to explain why this design is horrible and show you how to use this mechanism in a good, safe ...
Of the remaining timer API functions inFigure 5, the IsThreadpoolTimerSet function, as its name implies, returns TRUE if the timer has been set and FALSE otherwise. The remaining two, WaitForThreadpoolTimerCallbacks and CloseThreadpoolTimer behave exactly as their work object counterparts do. ...
(workItem);///If we found work, there may be more work. Ask for another thread so that the other work can be processed//in parallel. Note that this will only ask for a max of #procs threads, so it's safe to call it for every dequeue.//workQueue.EnsureThreadRequested();///Execu...
Framework. Specifically, I'm going to explain the motivation for why SyncBlocks and Monitors were designed the way they are and how they work. Then, at the end of this column, I'm going to explain why this design is horrible and show you how to use this mechanism in a good, safe ...