操作系统 哲学家就餐 C/Cpp实现

http://www.math-cs.gordon.edu/courses/cs322/projects/p2/dp/ Solution of the Dining Philosophers Problem using Shared Memory and Semaphores Two versions of this program are included. One is written in C and the other in CPP. Both make use of the pthreads library to start a new process that shares memory with it's parent. They both also use POSIX unnamed semaphores. Both programs require several support files written in C: msecond.c and msecond.h: Implements a function that returns the number of milliseconds (resolution is system dependent but is commonly 10 milliseconds) since it's first invocation. random_int.c and random_int.h: Implements a function that returns a random integer from an exponetial distribution with a specified mean. There is also a function to initialize the random number generator. Used the standard library functions random() and srandom(). For the C version you need: The source: philosopher.c. The C version of the Makefile. For the C++ version you need: The source: philosopher.cc. The C++ version of the Makefile. Comments should be addressed to Jonathan R. Senning $Revision: 1.1 $; File last modified: $Date: 2000/01/07 18:01:06 $ GMT