CS 160 Lab 2
2. be familiar with the Pthread functions.
3. know why and how to “ wrapper”
4. able to write own multi-thread programs
1 Review the homework of Lab 1 :
Write a program, preferably using threads, which enables users to set alarms. When the alarm time is up, a user-set message will be printed out on the display. 2 Three example solutions to homework of lab 1
a. alarm1.cc /* example using synchronous method, (single process) */
b. alarm2.cc /* example using multiple processes */
c. alarm3.cc /* example using multiple threads */
d. Makefile
3 Examine the three examples.
4 Introduction to Pthread functions
a. pthread_t thread;
b. int pthread_create( pthread_t *tid, const pthread_attr_t *attr, void *(*start)(void *), void *arg);
c. int pthread_detach( pthread_t tid);
d. int pthread_equal( pthread_t t1, pthread_t t2);
e. int pthread_exit( void *value_ptr);
f. int pthread_join( pthread_t tid, void **value_ptr);
g. pthread_t pthread_self(void );
h. int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr);
i. int pthread_mutex_destroy(pthread_mutex_t *mutex);
j. int pthread_mutex_lock(pthread_mutex_t *mutex);
k. int pthread_mutex_unlock(pthread_mutex_t *mutex);
l. int pthread_mutex_trylock(pthread_mutex_t *mutex);
5 C++ Wrapper
Why wrapper it? Then, how ? See wrapper example test_pthread.cc 6 Make file again
7. Objects in the assignment 1 The following links are online tutorials.