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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). Some of these examples have been repaired since the original printing of the book. Some differ from the examples printed in the latest printing, as well, because the changes were too large to fit. The signal-based suspend/resume program, susp.c, has been substantially revised to correct a number of problems with the original version. 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 "<n> <s>" where <s> (the remainder of the line) is a message to print after <n> 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 ]-----------------------[ firstname.lastname@example.org ]---\ | Compaq Computer Corporation 110 Spit Brook Rd ZKO2-3/Q18 | | 603.884.7460, FAX 603.884.0120 Nashua NH 03062-2698 | \-----------------[ Better Living Through Concurrency ]----------------/
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