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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-10-11 07:58:39 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-10-12 07:14:15 +0200 |
| commit | 64564df81045dfe31fb0369bc26566e24a36fa4b (patch) | |
| tree | e0f977033d16289a6c2343ee5a13ea271274d7ac /c-user/configuring_a_system.rst | |
| parent | posix-users/thread.rst: Add pthread_getconcurrency and pthread_setconcurrency (diff) | |
| download | rtems-docs-64564df81045dfe31fb0369bc26566e24a36fa4b.tar.bz2 | |
c-user: CONFIGURE_MAXIMUM_POSIX_SEMAPHORES
This configuration is not obsolete since it is still used for named
semaphores.
Update #3116.
Diffstat (limited to 'c-user/configuring_a_system.rst')
| -rw-r--r-- | c-user/configuring_a_system.rst | 36 |
1 files changed, 30 insertions, 6 deletions
diff --git a/c-user/configuring_a_system.rst b/c-user/configuring_a_system.rst index 01904a1..c91c8b6 100644 --- a/c-user/configuring_a_system.rst +++ b/c-user/configuring_a_system.rst @@ -1292,6 +1292,36 @@ DESCRIPTION: NOTES: This object class can be configured in unlimited allocation mode. +.. COMMENT: === CONFIGURE_MAXIMUM_POSIX_SEMAPHORES === + +.. _Specify Maximum POSIX API Semaphores: + +Specify Maximum POSIX API Named Semaphores +------------------------------------------ +.. index:: CONFIGURE_MAXIMUM_POSIX_SEMAPHORES + +CONSTANT: + ``CONFIGURE_MAXIMUM_POSIX_SEMAPHORES`` + +DATA TYPE: + Unsigned integer (``uint32_t``). + +RANGE: + Zero or positive. + +DEFAULT VALUE: + The default value is 0. + +DESCRIPTION: + ``CONFIGURE_MAXIMUM_POSIX_SEMAPHORES`` is the maximum number of POSIX API + Named Semaphores that can be concurrently active. Named semaphores are + created with ``sem_open()``. Semaphores initialized with ``sem_init()`` + are not affected by this configuration option since the storage space for + these semaphores is user-provided. + +NOTES: + None. + .. COMMENT: === POSIX Initialization Threads Table Configuration === POSIX Initialization Threads Table Configuration @@ -4986,12 +5016,6 @@ CONFIGURE_MAXIMUM_POSIX_RWLOCKS This configuration option is obsolete since RTEMS 4.12. -CONFIGURE_MAXIMUM_POSIX_SEMAPHORES ----------------------------------- -.. index:: CONFIGURE_MAXIMUM_POSIX_SEMAPHORES - -This configuration option is obsolete since RTEMS 4.12. - CONFIGURE_MAXIMUM_POSIX_SPINLOCKS --------------------------------- .. index:: CONFIGURE_MAXIMUM_POSIX_SPINLOCKS |