mode）和单程序运行（User mode）。System mode和我们平常用的VMWare一样，模拟整个系统从加载器开始的启动和运行。在设备逆向过程中，如果仅仅是为了运行我们提取出文件系统中的某一个程序，我们就可以使用QEMU的user mode来简化整个操作流程，同时能够方便的利用 QEMU 自带的GDB服务来进行调试，免去搭建环境的烦恼。在...
Using a Mutex to Protect the Integrity of Data A mutex is an object that has lock() and unlock() methods and remembers if it is already locked. A mutex is designed to be called from multiple threads. lock() returns immediately if the mutex is not locked. The next call from another th...
QSemaphore(intn= 0) Detailed Description A semaphore is a generalization of a mutex. While a mutex can only be locked once, it's possible to acquire a semaphore multiple times. Semaphores are typically used to protect a certain number of identical resources. Semaphores support two fundamental o...
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