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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-04-26 21:20:31 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-05-02 07:46:15 +0200 |
| commit | c8982e5f6a4857444676165deab1e08dc91a6847 (patch) | |
| tree | 9862d54650522b55afac8a4e1b84ab078a69dff5 /cpukit/sapi/include/confdefs.h | |
| parent | rtems: Avoid Giant lock for message queues (diff) | |
| download | rtems-c8982e5f6a4857444676165deab1e08dc91a6847.tar.bz2 | |
posix: Simplify message queues
The mq_open() function returns a descriptor to a POSIX message queue
object identified by a name. This is similar to sem_open(). In
contrast to the POSIX semaphore the POSIX message queues use a separate
object for the descriptor. This extra object is superfluous, since the
object identifier can be used directly for this purpose, just like for
the semaphores.
Update #2702.
Update #2555.
Diffstat (limited to 'cpukit/sapi/include/confdefs.h')
| -rw-r--r-- | cpukit/sapi/include/confdefs.h | 39 |
1 files changed, 2 insertions, 37 deletions
diff --git a/cpukit/sapi/include/confdefs.h b/cpukit/sapi/include/confdefs.h index e0b2a8058f..006cdbd6f5 100644 --- a/cpukit/sapi/include/confdefs.h +++ b/cpukit/sapi/include/confdefs.h @@ -2029,10 +2029,6 @@ extern rtems_initialization_tasks_table Initialization_tasks[]; #define CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES \ rtems_resource_unlimited(CONFIGURE_UNLIMITED_ALLOCATION_SIZE) #endif - #if !defined(CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUE_DESCRIPTORS) - #define CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUE_DESCRIPTORS \ - rtems_resource_unlimited(CONFIGURE_UNLIMITED_ALLOCATION_SIZE) - #endif #if !defined(CONFIGURE_MAXIMUM_POSIX_SEMAPHORES) #define CONFIGURE_MAXIMUM_POSIX_SEMAPHORES \ rtems_resource_unlimited(CONFIGURE_UNLIMITED_ALLOCATION_SIZE) @@ -2582,17 +2578,6 @@ extern rtems_initialization_tasks_table Initialization_tasks[]; #endif /** - * This configuration parameter specifies the maximum number of - * POSIX API messages queue descriptors. - * - * This defaults to the number of POSIX API message queues. - */ - #ifndef CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUE_DESCRIPTORS - #define CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUE_DESCRIPTORS \ - CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES - #endif - - /** * This macro is calculated to specify the memory required for * POSIX API message queues. * @@ -2603,16 +2588,6 @@ extern rtems_initialization_tasks_table Initialization_tasks[]; _message_queues, sizeof(POSIX_Message_queue_Control) ) /** - * This macro is calculated to specify the memory required for - * POSIX API message queue descriptors. - * - * This is an internal parameter. - */ - #define CONFIGURE_MEMORY_FOR_POSIX_MESSAGE_QUEUE_DESCRIPTORS(_mqueue_fds) \ - _Configure_Object_RAM( \ - _mqueue_fds, sizeof(POSIX_Message_queue_Control_fd) ) - - /** * This configuration parameter specifies the maximum number of * POSIX API semaphores. */ @@ -2907,8 +2882,6 @@ extern rtems_initialization_tasks_table Initialization_tasks[]; CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS) + \ CONFIGURE_MEMORY_FOR_POSIX_MESSAGE_QUEUES( \ CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES) + \ - CONFIGURE_MEMORY_FOR_POSIX_MESSAGE_QUEUE_DESCRIPTORS( \ - CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUE_DESCRIPTORS) + \ CONFIGURE_MEMORY_FOR_POSIX_SEMAPHORES( \ CONFIGURE_MAXIMUM_POSIX_SEMAPHORES) + \ CONFIGURE_MEMORY_FOR_POSIX_BARRIERS(CONFIGURE_MAXIMUM_POSIX_BARRIERS) + \ @@ -3369,7 +3342,6 @@ extern rtems_initialization_tasks_table Initialization_tasks[]; CONFIGURE_MAXIMUM_POSIX_TIMERS, CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS, CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES, - CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUE_DESCRIPTORS, CONFIGURE_MAXIMUM_POSIX_SEMAPHORES, CONFIGURE_MAXIMUM_POSIX_BARRIERS, CONFIGURE_MAXIMUM_POSIX_RWLOCKS, @@ -3727,7 +3699,6 @@ extern rtems_initialization_tasks_table Initialization_tasks[]; (CONFIGURE_MAXIMUM_POSIX_TIMERS != 0) || \ (CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS != 0) || \ (CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES != 0) || \ - (CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUE_DESCRIPTORS != 0) || \ (CONFIGURE_MAXIMUM_POSIX_SEMAPHORES != 0) || \ (CONFIGURE_MAXIMUM_POSIX_BARRIERS != 0) || \ (CONFIGURE_MAXIMUM_POSIX_SPINLOCKS != 0) || \ @@ -3795,14 +3766,8 @@ extern rtems_initialization_tasks_table Initialization_tasks[]; #error "Maximum priority configured higher than supported by target." #endif -/* - * If you have fewer POSIX Message Queue Descriptors than actual - * POSIX Message Queues, then you will not be able to open all the - * queues. - */ -#if (CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUE_DESCRIPTORS < \ - CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES) - #error "Fewer POSIX Message Queue descriptors than Queues!" +#ifdef CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUE_DESCRIPTORS + #warning "The CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUE_DESCRIPTOR configuration option is obsolete!" #endif /* |