Programming-POSIX-Threads

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These are the source files for the programming examples in "Programming With POSIX(r) Threads". The Makefile is pre-configured for Digital UNIX, but includes the appropriate definitions to build on Solaris (uncomment the Solaris lines and comment the Digital UNIX lines).

alarm.c Simple synchronous alarm clock alarm_cond.c Threaded alarm clock using condition variable alarm_fork.c Alarm clock using fork asychrony alarm_mutex.c Threaded alarm clock using mutex alarm_thread.c Alarm clock using thread asynchrony atfork.c Demonstrate pthread_atfork() backoff.c Demonstrate mutex hierarchy backoff barrier.c Implementation of barrier package barrier_main.c Demonstrate use of barrier package cancel.c Demonstrate cancellation cancel_async.c Demonstrate asyncronous cancellation cancel_cleanup.c Demonstrate cancellation cleanup cancel_disable.c Demonstrate disabling cancellation cancel_subcontract.c Demonstrate cancellation of "subcontractors" cond.c Demonstrate use of condition variables cond_attr.c Demonstrate condition variable attributes cond_dynamic.c Demonstrate dynamic init of condition variable cond_static.c Demonstrate static init of condition variable crew.c A simple threaded work crew flock.c Demonstrate use of file locking getlogin.c Demonstrate reentrant user functions hello.c Demonstrate thread creation inertia.c Demonstrate "thread inertia" errors lifecycle.c Demonstrate "thread lifecycle" mutex_attr.c Demonstrate mutex attributes mutex_dynamic.c Demonstrate dynamic initialization of mutex mutex_static.c Demonstrate static initialization of mutex once.c Demonstrate use of pthread_once() pipe.c A simple threaded pipeline putchar.c Demonstrate thread-safe use of putchar() rwlock.c Implementation of read/write lock package rwlock_main.c Demonstrate use of read/write lock package rwlock_try_main.c Demonstrate use of read/write lock package sched_attr.c Demonstrate thread scheduling attributes sched_thread.c Demonstrate use of thread scheduling functions semaphore_signal.c Demonstrate use of semaphores with signals semaphore_wait.c Demonstrate use of semaphores server.c A simple threaded client/server program sigev_thread.c Demonstrate use of SIGEV_THREAD mechanism sigwait.c Demonstrate use of sigwait() susp.c Demonstrate use of pthread_kill() thread.c Demonstrate simple concurrent I/O thread_attr.c Demonstrate thread attributes thread_error.c Demonstrate POSIX thread error mechanism trylock.c Demonstrate use of pthread_mutex_trylock() tsd_destructor.c Demonstrate thread-specific data destructors tsd_once.c Demonstrate thread-specific data key creation workq.c Implementation of work queue package workq_main.c Demonstrate use of work queue package

Header files:

barrier.h Definitions for barrier package errors.h General headers and error macros rwlock.h Definitions for read/write lock package workq.h Definitions for work queue package

Programs with arguments or special behavior:

alarm, alarm_fork, The alarm programs will prompt for alarm_thread, alarm_mutex, commands until terminated by ^D alarm_cond (EOF). Commands are " " where (the remainder of the line) is a message to print after seconds. atfork [hang] Run with an argument of 0 to omit atfork handlers -- program will hang. backoff [backoff [delay]] Run with first argument of 0, will not back off on mutex collision, and will usually hang. Second argument can be specified greater than 0 to yield (increasing chances of hang on uniprocessor), or less than 0 to sleep for a second. crew string path First argument is a search string, second is a file path. flock Threads will prompt alternately for input. pipe Prompts for integers to feed to pipeline; enter "=" to pop a result. putchar [unsync] Run with argument of 0 to concurrently call putchar_unlocked from multiple threads. server Threads each prompt for input, and echo it 3 times -- server prevents output while waiting for input. sigwait Waits for 5 SIGINT signals (^C) thread One thread writes to stdout while another waits for input from stdin. (Satisfy the read to exit.)

/---[ Dave Butenhof ]-----------------------[ [email protected] ]---
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