如题,应届生除了要良好地掌握算法和数据结构以外,以下一些技能点列表希望对大家有帮助,有兴趣的朋友可以参考这个针对性地补缺补差。文章列出的技能点有的要求熟悉,有的了解即可,注意技能点前面的修饰词。如果没有明确给出“熟悉”“了解”等字眼,要求均为熟悉。
熟练使用(但不局限于)以下linux API
linux下的线程创建、等待、获取线程id
1int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine) (void *), void *arg);
2int pthread_join(pthread_t thread, void **retval);
3pthread_t pthread_self(void);
常见线程之间的同步技术(何时该用那种技术)
互斥体
1int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr);
2int pthread_mutex_destroy(pthread_mutex_t *mutex);
3int pthread_mutex_lock(pthread_mutex_t *mutex);
4int pthread_mutex_trylock(pthread_mutex_t *mutex);
5int pthread_mutex_unlock(pthread_mutex_t *mutex);
信号量
1int sem_init(sem_t *sem, int pshared, unsigned int value);
2int sem_destroy(sem_t *sem);
3int sem_wait(sem_t *sem);
4int sem_post(sem_t *sem);
5int sem_getvalue(sem_t *sem, int *valp);
条件变量
1int pthread_cond_init(pthread_cond_t *restrict cond, const pthread_condattr_t *restrict attr);
2int pthread_cond_destroy(pthread_cond_t *cond);
3int pthread_cond_signal(pthread_cond_t *cond);
4int pthread_cond_broadcast(pthread_cond_t *cond);
5int pthread_cond_wait(pthread_cond_t *restrict cond, pthread_mutex_t *restrict mutex);
6int pthread_cond_timedwait(pthread_cond_t *restrict cond, pthread_mutex_t *restrict mutex, const struct timespec *restrict abstime);
读写/自旋锁
1int pthread_rwlock_init(pthread_rwlock_t *restrict rwlock, const pthread_rwlockattr_t *restrict attr);
2int pthread_rwlock_destroy(pthread_rwlock_t *rwlock);
3int pthread_rwlock_rdlock(pthread_rwlock_t *rwlock);
4int pthread_rwlock_tryrdlock(pthread_rwlock_t *rwlock);
5int pthread_rwlock_wrlock(pthread_rwlock_t *rwlock);
6int pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock);
7int pthread_rwlock_unlock(pthread_rwlock_t *rwlock);
8//这两个函数在Linux和Mac的man文档里都没有,新版的pthread.h里面也没有,旧版的能找到
9int pthread_rwlock_timedrdlock_np(pthread_rwlock_t *rwlock, const struct timespec *deltatime);
10int pthread_rwlock_timedwrlock_np(pthread_rwlock_t *rwlock, const struct timespec *deltatime);
11int pthread_spin_init (__pthread_spinlock_t *__lock, int __pshared);
12int pthread_spin_destroy (__pthread_spinlock_t *__lock);
13int pthread_spin_trylock (__pthread_spinlock_t *__lock);
14int pthread_spin_unlock (__pthread_spinlock_t *__lock);
15int pthread_spin_lock (__pthread_spinlock_t *__lock);
1int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
2int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen);
3int bind(int socket, const struct sockaddr *address, socklen_t address_len);
4int listen(int sockfd, int backlog);
5ssize_t send(int sockfd, const void *buf, size_t len, int flags);
6ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, const struct sockaddr *dest_addr, socklen_t addrlen);
7ssize_t recv(int sockfd, void *buf, size_t len, int flags);
8ssize_t recvfrom(int sockfd, void *buf, size_t len, int flags, struct sockaddr *src_addr, socklen_t *addrlen);
9int select(int nfds, fd_set *readfds, fd_set *writefds,
10 fd_set *exceptfds, struct timeval *timeout);
11void FD_CLR(int fd, fd_set *set);
12int FD_ISSET(int fd, fd_set *set);
13void FD_SET(int fd, fd_set *set);
14void FD_ZERO(fd_set *set);
15struct hostent *gethostbyname(const char *name);
1int epoll_create(int size);
2int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event);
3int epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout);
1mysql_real_connect
2mysql_select_db
3mysql_query
4mysql_store_result
5mysql_free_result
6mysql_num_rows
7mysql_close
8mysql_errno
C/C++方面