9. POSIX PSE52 - Real-Time Controller

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

The follow table summarizes alignment with the POSIX PSE52 - Real-Time Controller standard:

Support	Amount
Supported	575
ENOSYS	2
Not supported	52

9.1. <complex.h>

The following methods and variables in <complex.h> are supported:

• cabs()

• cabsf()

• cabsl()

• cacos()

• cacosf()

• cacosh()

• cacoshf()

• cacoshl()

• cacosl()

• carg()

• cargf()

• cargl()

• casin()

• casinf()

• casinh()

• casinhf()

• casinhl()

• casinl()

• catan()

• catanf()

• catanh()

• catanhf()

• catanhl()

• catanl()

• ccos()

• ccosf()

• ccosh()

• ccoshf()

• ccoshl()

• ccosl()

• cexp()

• cexpf()

• cexpl()

• cimag()

• cimagf()

• cimagl()

• clog()

• clogf()

• clogl()

• conj()

• conjf()

• conjl()

• cpow()

• cpowf()

• cpowl()

• cproj()

• cprojf()

• cprojl()

• creal()

• crealf()

• creall()

• csin()

• csinf()

• csinh()

• csinhf()

• csinhl()

• csinl()

• csqrt()

• csqrtf()

• csqrtl()

• ctan()

• ctanf()

• ctanh()

• ctanhf()

• ctanhl()

• ctanl()

9.2. <ctype.h>

The following methods and variables in <ctype.h> are supported:

• isalnum()

• isalpha()

• isblank()

• iscntrl()

• isdigit()

• isgraph()

• islower()

• isprint()

• ispunct()

• isspace()

• isupper()

• isxdigit()

• tolower()

• toupper()

9.3. <dirent.h>

The following methods and variables in <dirent.h> are supported:

• closedir()

• opendir()

• readdir()

• readdir_r()

• rewinddir()

9.4. <errno.h>

The following methods and variables in <errno.h> are supported:

• errno

9.5. <fcntl.h>

The following methods and variables in <fcntl.h> are supported:

• creat()

• fcntl()

• open()

9.6. <fenv.h>

The following methods and variables in <fenv.h> are supported:

• feclearexcept()

• fegetenv()

• fegetexceptflag()

• fegetround()

• feholdexcept()

• feraiseexcept()

• fesetenv()

• fesetexceptflag()

• fesetround()

• fetestexcept()

• feupdateenv()

9.7. <inttypes.h>

The following methods and variables in <inttypes.h> are supported:

• imaxabs()

• imaxdiv()

• strtoimax()

• strtoumax()

9.8. <locale.h>

The following methods and variables in <locale.h> are supported:

• localeconv()

• setlocale()

9.9. <math.h>

The following methods and variables in <math.h> are supported:

• acos()

• acosf()

• acosh()

• acoshf()

• acoshl()

• acosl()

• asin()

• asinf()

• asinh()

• asinhf()

• asinhl()

• asinl()

• atan()

• atan2()

• atan2f()

• atan2l()

• atanf()

• atanh()

• atanhf()

• atanhl()

• atanl()

• cbrt()

• cbrtf()

• cbrtl()

• ceil()

• ceilf()

• ceill()

• copysign()

• copysignf()

• copysignl()

• cos()

• cosf()

• cosh()

• coshf()

• coshl()

• cosl()

• erf()

• erfc()

• erfcf()

• erfcl()

• erff()

• erfl()

• exp()

• exp2()

• exp2f()

• exp2l()

• expf()

• expl()

• expm1()

• expm1f()

• expm1l()

• fabs()

• fabsf()

• fabsl()

• fdim()

• fdimf()

• fdiml()

• floor()

• floorf()

• floorl()

• fma()

• fmaf()

• fmal()

• fmax()

• fmaxf()

• fmaxl()

• fmin()

• fminf()

• fminl()

• fmod()

• fmodf()

• fmodl()

• fpclassify()

• frexp()

• frexpf()

• frexpl()

• hypot()

• hypotf()

• hypotl()

• ilogb()

• ilogbf()

• ilogbl()

• isfinite()

• isgreater()

• isgreaterequal()

• isinf()

• isless()

• islessequal()

• islessgreater()

• isnan()

• isnormal()

• isunordered()

• ldexp()

• ldexpf()

• ldexpl()

• lgamma()

• lgammaf()

• lgammal()

• llrint()

• llrintf()

• llrintl()

• llround()

• llroundf()

• llroundl()

• log()

• log10()

• log10f()

• log10l()

• log1p()

• log1pf()

• log1pl()

• log2()

• log2f()

• log2l()

• logb()

• logbf()

• logbl()

• logf()

• logl()

• lrint()

• lrintf()

• lrintl()

• lround()

• lroundf()

• lroundl()

• modf()

• modff()

• modfl()

• nan()

• nanf()

• nanl()

• nearbyint()

• nearbyintf()

• nearbyintl()

• nextafter()

• nextafterf()

• nextafterl()

• nexttoward()

• nexttowardf()

• nexttowardl()

• pow()

• powf()

• powl()

• remainder()

• remainderf()

• remainderl()

• remquo()

• remquof()

• remquol()

• rint()

• rintf()

• rintl()

• round()

• roundf()

• roundl()

• scalbln()

• scalblnf()

• scalblnl()

• scalbn()

• scalbnf()

• scalbnl()

• sin()

• sinf()

• sinh()

• sinhf()

• sinhl()

• sinl()

• sqrt()

• sqrtf()

• sqrtl()

• tan()

• tanf()

• tanh()

• tanhf()

• tanhl()

• tanl()

• tgamma()

• tgammaf()

• tgammal()

• trunc()

• truncf()

• truncl()

The following methods and variables in <math.h> are not supported:

• signbit()

9.10. <mqueue.h>

The following methods and variables in <mqueue.h> are supported:

• mq_close()

• mq_getattr()

• mq_notify()

• mq_open()

• mq_receive()

• mq_send()

• mq_setattr()

• mq_timedreceive()

• mq_timedsend()

• mq_unlink()

9.11. <pthread.h>

The following methods and variables in <pthread.h> are supported:

• pthread_attr_destroy()

• pthread_attr_getdetachstate()

• pthread_attr_getguardsize()

• pthread_attr_getinheritsched()

• pthread_attr_getschedparam()

• pthread_attr_getschedpolicy()

• pthread_attr_getscope()

• pthread_attr_getstack()

• pthread_attr_getstackaddr()

• pthread_attr_getstacksize()

• pthread_attr_init()

• pthread_attr_setdetachstate()

• pthread_attr_setguardsize()

• pthread_attr_setinheritsched()

• pthread_attr_setschedparam()

• pthread_attr_setschedpolicy()

• pthread_attr_setscope()

• pthread_attr_setstack()

• pthread_attr_setstackaddr()

• pthread_attr_setstacksize()

• pthread_cancel()

• pthread_cleanup_pop()

• pthread_cleanup_push()

• pthread_cond_broadcast()

• pthread_cond_destroy()

• pthread_cond_init()

• pthread_cond_signal()

• pthread_cond_timedwait()

• pthread_cond_wait()

• pthread_condattr_destroy()

• pthread_condattr_getclock()

• pthread_condattr_init()

• pthread_condattr_setclock()

• pthread_create()

• pthread_detach()

• pthread_equal()

• pthread_exit()

• pthread_getconcurrency()

• pthread_getschedparam()

• pthread_getspecific()

• pthread_join()

• pthread_key_create()

• pthread_key_delete()

• pthread_mutex_destroy()

• pthread_mutex_getprioceiling()

• pthread_mutex_init()

• pthread_mutex_lock()

• pthread_mutex_setprioceiling()

• pthread_mutex_trylock()

• pthread_mutex_unlock()

• pthread_mutexattr_destroy()

• pthread_mutexattr_getprioceiling()

• pthread_mutexattr_getprotocol()

• pthread_mutexattr_gettype()

• pthread_mutexattr_init()

• pthread_mutexattr_setprioceiling()

• pthread_mutexattr_setprotocol()

• pthread_mutexattr_settype()

• pthread_once()

• pthread_self()

• pthread_setcancelstate()

• pthread_setcanceltype()

• pthread_setconcurrency()

• pthread_setschedparam()

• pthread_setschedprio()

• pthread_setspecific()

• pthread_testcancel()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

• pthread_atfork()

• pthread_getcpuclockid()

9.12. <sched.h>

The following methods and variables in <sched.h> are supported:

• sched_get_priority_max()

• sched_get_priority_min()

• sched_rr_get_interval()

9.13. <semaphore.h>

The following methods and variables in <semaphore.h> are supported:

• sem_close()

• sem_destroy()

• sem_getvalue()

• sem_init()

• sem_open()

• sem_post()

• sem_timedwait()

• sem_trywait()

• sem_unlink()

• sem_wait()

9.14. <setjmp.h>

The following methods and variables in <setjmp.h> are supported:

• longjmp()

• setjmp()

9.15. <signal.h>

The following methods and variables in <signal.h> are supported:

• kill()

• pthread_kill()

• pthread_sigmask()

• raise()

• sigaction()

• sigaddset()

• sigdelset()

• sigemptyset()

• sigfillset()

• sigismember()

• signal()

• sigpending()

• sigprocmask()

• sigqueue()

• sigsuspend()

• sigtimedwait()

• sigwait()

• sigwaitinfo()

9.16. <stdarg.h>

The following methods and variables in <stdarg.h> are supported:

• va_arg()

• va_copy()

• va_end()

• va_start()

9.17. <stddef.h>

The following methods and variables in <stddef.h> are supported:

• offsetof()

9.18. <stdio.h>

The following methods and variables in <stdio.h> are supported:

• clearerr()

• fclose()

• fdopen()

• feof()

• ferror()

• fflush()

• fgetc()

• fgetpos()

• fgets()

• fileno()

• flockfile()

• fopen()

• fprintf()

• fputc()

• fputs()

• fread()

• freopen()

• fscanf()

• fseek()

• fseeko()

• fsetpos()

• ftell()

• ftello()

• ftrylockfile()

• funlockfile()

• fwrite()

• getc()

• getc_unlocked()

• getchar()

• getchar_unlocked()

• gets()

• perror()

• printf()

• putc()

• putc_unlocked()

• putchar()

• putchar_unlocked()

• puts()

• remove()

• rename()

• rewind()

• scanf()

• setbuf()

• setvbuf()

• snprintf()

• sprintf()

• sscanf()

• stderr

• stdin

• stdout

• tmpfile()

• tmpnam()

• ungetc()

• vfprintf()

• vfscanf()

• vprintf()

• vscanf()

• vsnprintf()

• vsprintf()

• vsscanf()

9.19. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

• abort()

• abs()

• atof()

• atoi()

• atol()

• atoll()

• bsearch()

• calloc()

• div()

• free()

• getenv()

• labs()

• ldiv()

• llabs()

• lldiv()

• malloc()

• qsort()

• rand()

• rand_r()

• realloc()

• setenv()

• srand()

• strtod()

• strtof()

• strtol()

• strtold()

• strtoll()

• strtoul()

• strtoull()

• unsetenv()

9.20. <string.h>

The following methods and variables in <string.h> are supported:

• memchr()

• memcmp()

• memcpy()

• memmove()

• memset()

• strcat()

• strchr()

• strcmp()

• strcoll()

• strcpy()

• strcspn()

• strerror()

• strerror_r()

• strlen()

• strncat()

• strncmp()

• strncpy()

• strpbrk()

• strrchr()

• strspn()

• strstr()

• strtok()

• strtok_r()

• strxfrm()

9.21. <sys/mman.h>

The following methods and variables in <sys/mman.h> are supported:

• mlock()

• mlockall()

• mmap()

• msync()

• munlock()

• munmap()

• shm_open()

• shm_unlink()

9.22. <sys/stat.h>

The following methods and variables in <sys/stat.h> are supported:

• fstat()

• mkdir()

• stat()

9.23. <sys/utsname.h>

The following methods and variables in <sys/utsname.h> are supported:

• uname()

9.24. <time.h>

The following methods and variables in <time.h> are supported:

• asctime()

• asctime_r()

• clock_getres()

• clock_gettime()

• clock_nanosleep()

• clock_settime()

• ctime()

• ctime_r()

• difftime()

• gmtime()

• gmtime_r()

• localtime()

• localtime_r()

• mktime()

• nanosleep()

• strftime()

• time()

• timer_create()

• timer_delete()

• timer_getoverrun()

• timer_gettime()

• timer_settime()

• tzname

• tzset()

9.25. <trace.h>

The following methods and variables in <trace.h> are not supported:

• posix_trace_attr_destroy()

• posix_trace_attr_getclockres()

• posix_trace_attr_getcreatetime()

• posix_trace_attr_getgenversion()

• posix_trace_attr_getinherited()

• posix_trace_attr_getlogfullpolicy()

• posix_trace_attr_getlogsize()

• posix_trace_attr_getmaxdatasize()

• posix_trace_attr_getmaxsystemeventsize()

• posix_trace_attr_getmaxusereventsize()

• posix_trace_attr_getname()

• posix_trace_attr_getstreamfullpolicy()

• posix_trace_attr_getstreamsize()

• posix_trace_attr_init()

• posix_trace_attr_setinherited()

• posix_trace_attr_setlogfullpolicy()

• posix_trace_attr_setlogsize()

• posix_trace_attr_setmaxdatasize()

• posix_trace_attr_setname()

• posix_trace_attr_setstreamfullpolicy()

• posix_trace_attr_setstreamsize()

• posix_trace_clear()

• posix_trace_close()

• posix_trace_create()

• posix_trace_create_withlog()

• posix_trace_event()

• posix_trace_eventid_equal()

• posix_trace_eventid_get_name()

• posix_trace_eventid_open()

• posix_trace_eventset_add()

• posix_trace_eventset_del()

• posix_trace_eventset_empty()

• posix_trace_eventset_fill()

• posix_trace_eventset_ismember()

• posix_trace_eventtypelist_getnext_id()

• posix_trace_eventtypelist_rewind()

• posix_trace_flush()

• posix_trace_get_attr()

• posix_trace_get_filter()

• posix_trace_get_status()

• posix_trace_getnext_event()

• posix_trace_open()

• posix_trace_rewind()

• posix_trace_set_filter()

• posix_trace_shutdown()

• posix_trace_start()

• posix_trace_stop()

• posix_trace_timedgetnext_event()

• posix_trace_trid_eventid_open()

• posix_trace_trygetnext_event()

9.26. <unistd.h>

The following methods and variables in <unistd.h> are supported:

• access()

• alarm()

• chdir()

• close()

• dup()

• dup2()

• environ

• fdatasync()

• fpathconf()

• fsync()

• ftruncate()

• getcwd()

• link()

• lseek()

• pathconf()

• pause()

• read()

• rmdir()

• sysconf()

• unlink()

• write()

The following methods and variables in <unistd.h> are not supported:

• confstr()

9.27. <utime.h>

The following methods and variables in <utime.h> are supported:

• utime()