POSIX 1003.1d Test Suite

Positioning

The Open Group Test Suite for the POSIX Additional Realtime Extensions is known as VSRTE. It is a standalone test suite covering POSIX 1003.1d - 1999 and any associated Technical Corrigenda. Additionally it provides test coverage for the Advanced Realtime Option Group in UNIX 03.

Functional Areas Tested

The test suite covers the following functional areas in the IEEE POSIX 1003.1d standard.

Spawn a Process

New system services to spawn the execution of a new process in an efficient manner.

Timeouts for some blocking services

Additional services that provide a timeout capability to system services already defined in POSIX.1b and POSIX.1c, thus allowing the application to include better error detection and recovery capabilities.

Sporadic Server Scheduling

The addition of a new scheduling policy appropriate for scheduling aperiodic processes or threads in hard real-time applications.

Execution Time Clocks and Timers

The addition of new clocks that measure the execution times of processes or threads, and the possibility to create timers based upon these clocks, for runtime detection (and treatment) of execution time overruns.

Advisory Information for File Management

Addition of services that allow the application to specify advisory information that can be used by the system to achieve better or even deterministic response times in file management or input & output operations.

POSIX Functions Tested

The following new POSIX functions are tested:

posix_spawn()
posix_spawn_file_actions_addclose()
posix_spawn_file_actions_adddup2()
posix_spawn_file_actions_addopen()
posix_spawn_file_actions_destroy()
posix_spawn_file_actions_init()
posix_spawnattr_destroy()
posix_spawnattr_getflags()
posix_spawnattr_getpgroup()
posix_spawnattr_getschedparam()
posix_spawnattr_getschedpolicy()
posix_spawnattr_getsigdefault()
posix_spawnattr_getsigmask()
posix_spawnattr_init ()
posix_spawnattr_setflags()
posix_spawnattr_setpgroup()
posix_spawnattr_setschedparam()
posix_spawnattr_setschedpolicy()
posix_spawnattr_setsigdefault()
posix_spawnattr_setsigmask()
posix_spawnp()
pthread_mutex_timedlock()
sem_timedwait()
mq_timedreceive()
mq_timedsend()
clock_getcpuclockid()
pthread_getcpuclockid()
posix_fadvise()
posix_fallocate()
posix_madvise()
posix_memalign()

Tests are also performed on existing functions POSIX .1 functions whose behaviour is modified by the additional realtime extensions.

Header Files Tested

The following header files are tested:

<fcntl.h>
<limits.h>
<sys/mman.h>
<mqueue.h>
<pthread.h>
<sched.h>
<semaphore.h>
<spawn.h>
<stdlib.h>
<time.h>
<unistd.h>