Changeset edc1347e in rtems


Ignore:
Timestamp:
Feb 18, 2000, 2:11:46 PM (21 years ago)
Author:
Joel Sherrill <joel.sherrill@…>
Branches:
4.10, 4.11, 4.8, 4.9, 5, master
Children:
9b10d22
Parents:
227aec92
Message:

Patch from Eric Norum <eric@…> to include some information
on simple binary semaphores.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • doc/user/sem.t

    r227aec92 redc1347e  
    8989outermost @code{@value{DIRPREFIX}semaphore_obtain} is matched with
    9090a @code{@value{DIRPREFIX}semaphore_release}.
     91
     92Simple binary semaphores do not allow nested access and so can be used for task synchronization.
    9193
    9294
     
    190192
    191193@item @code{@value{RPREFIX}COUNTING_SEMAPHORE} - no restriction on values
     194
     195@item @code{@value{RPREFIX}SIMPLE_BINARY_SEMAPHORE} - restrict values to
     1960 and 1 and do not allow nested access.
    192197
    193198@item @code{@value{RPREFIX}NO_INHERIT_PRIORITY} - do not use priority
     
    446451
    447452@item @code{@value{RPREFIX}COUNTING_SEMAPHORE} - no restriction on values
     453
     454@item @code{@value{RPREFIX}SIMPLE_BINARY_SEMAPHORE} - restrict values to
     4550 and 1 and do not allow nested access.
    448456
    449457@item @code{@value{RPREFIX}NO_INHERIT_PRIORITY} - do not use priority
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