IPC pthread_rwlock_t

#include #include #include #include #include #include #include int main(int argc ,char * argv[]) { pthread_rwlock_t lock = PTHREAD_RWLOCK_INITIALIZER ; char arg; while( (arg =getopt(argc,argv,"rw"))!= -1){ switch(arg){ case 'r': printf("r/n"); break; case 'w': printf("w/n"); break; } } 编译时必须采用如下的格式，否则提示pthread_rwlock_t 没有定义 gcc -o rwlock rwlock.c -D_XOPEN_SOURCE=500 -Wall