Functions

Functions of the posix library.

The posix library consists of the following functions.

• mq_close
  Close a message queue.
• mq_getattr
  Get message queue attributes.
• mq_open
  Open a message queue.
• mq_receive
  Receive a message from a message queue.
• mq_send
  Send a message to a message queue.
• mq_timedreceive
  Receive a message from a message queue with timeout.
• mq_timedsend
  Send a message to a message queue with timeout.
• mq_unlink
  Remove a message queue.
• pthread_attr_destroy
  Destroy the thread attributes object.
• pthread_attr_getdetachstate
  Get detachstate attribute.
• pthread_attr_getschedparam
  Get schedparam attribute.
• pthread_attr_getstacksize
  Get stacksize attribute.
• pthread_attr_init
  Initialize the thread attributes object.
• pthread_attr_setdetachstate
  Set detachstate attribute.
• pthread_attr_setschedparam
  Set schedparam attribute.
• pthread_attr_setschedpolicy
  Set the schedpolicy attribute.
• pthread_attr_setstacksize
  Set stacksize attribute.
• pthread_barrier_destroy
  Destroy a barrier object.
• pthread_barrier_init
  Initialize a barrier object.
• pthread_barrier_wait
  Synchronize at a barrier.
• pthread_create
  Thread creation.
• pthread_cond_broadcast
  Broadcast a condition.
• pthread_cond_destroy
  Destroy condition variables.
• pthread_cond_init
  Initialize condition variables.
• pthread_cond_signal
  Signal a condition.
• pthread_cond_timedwait
  Wait on a condition with a timeout.
• pthread_cond_wait
  Wait on a condition.
• pthread_equal
  Compare thread IDs.
• pthread_exit
  Thread termination.
• pthread_getschedparam
  Dynamic thread scheduling parameters access.
• pthread_join
  Wait for thread termination.
• pthread_mutex_destroy
  Destroy a mutex.
• pthread_mutex_init
  Initialize a mutex.
• pthread_mutex_lock
  Lock a mutex.
• pthread_mutex_timedlock
  Lock a mutex with timeout.
• pthread_mutex_trylock
  Attempt to lock a mutex. Fail immediately if mutex is already locked.
• pthread_mutex_unlock
  Unlock a mutex.
• pthread_mutexattr_destroy
  Destroy the mutex attributes object.
• pthread_mutexattr_gettype
  Get the mutex type attribute.
• pthread_cond_timedwait
  Wait on a condition with a timeout.
• pthread_mutexattr_init
  Initialize the mutex attributes object.
• pthread_mutexattr_settype
  Set the mutex type attribute.
• pthread_self
  Get the calling thread ID.
• pthread_setschedparam
  Dynamic thread scheduling parameters access.
• sched_get_priority_max
  Get priority limit (max).
• sched_get_priority_min
  Get priority limit (min).
• sched_yield
  Yield the processor.
• sem_destroy
  Destroy an unnamed semaphore.
• sem_getvalue
  Get the value of a semaphore.
• sem_init
  Initialize an unnamed semaphore.
• sem_post
  Unlock a semaphore.
• sem_timedwait
  Lock a semaphore with timeout.
• sem_trywait
  Lock a semaphore if available.
• sem_wait
  Lock a semaphore.
• clock
  Report CPU time used.
• clock_getcpuclockid
  Access a process CPU-time clock.
• clock_getres
  Returns the resolution of a clock.
• clock_gettime
  Returns the current value for the specified clock, clock_id.
• clock_nanosleep
  High resolution sleep with specifiable clock.
• clock_settime
  Sets the time for the specified clock.
• nanosleep
  High resolution sleep.
• timer_create
  Create a per-process timer.
• timer_delete
  Delete a per-process timer.
• timer_getoverrun
  Get the timer overrun count.
• timer_gettime
  Get the amount of time until the timer expires.
• timer_settime
  Set the time until the next expiration of the timer.
• sleep
  Suspend execution for an interval of time.
• usleep
  Suspend execution for microsecond intervals.
• UTILS_strnlen
  Calculates the length of pcString, up to xMaxLength.
• UTILS_AbsoluteTimespecToDeltaTicks
  Calculates the number of ticks between now and a given timespec.
• UTILS_TimespecToTicks
  Converts a struct timespec to FreeRTOS ticks.
• UTILS_NanosecondsToTimespec
  Converts an integer value to a timespec.
• UTILS_TimespecAdd
  Calculates pxResult = x + y.
• UTILS_TimespecAddNanoseconds
  Calculates pxResult = x + ( struct timespec ) nanosec.
• UTILS_TimespecSubtract
  Calculates pxResult = x - y. If the result is negative contents of pResult are undefined.
• UTILS_TimespecCompare
  Compare x == y.
• UTILS_ValidateTimespec
  Checks that a timespec conforms to POSIX.