diff options
Diffstat (limited to 'gcc/ada/g-semaph.ads')
| -rw-r--r-- | gcc/ada/g-semaph.ads | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/gcc/ada/g-semaph.ads b/gcc/ada/g-semaph.ads index 1089c7f..a1ed4e9e 100644 --- a/gcc/ada/g-semaph.ads +++ b/gcc/ada/g-semaph.ads @@ -6,7 +6,7 @@ -- -- -- S p e c -- -- -- --- Copyright (C) 2003 Ada Core Technologies, Inc. -- +-- Copyright (C) 2003-2005, AdaCore -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- @@ -40,7 +40,7 @@ with System; package GNAT.Semaphores is Default_Ceiling : constant System.Priority := System.Default_Priority; - -- A convenient value for the priority discriminants that follow. + -- A convenient value for the priority discriminants that follow ------------------------ -- Counting_Semaphore -- @@ -52,19 +52,18 @@ package GNAT.Semaphores is -- value of this counter is set by clients via the discriminant. Ceiling : System.Priority) - -- Users must specify the ceiling priority for the object. - -- If the Real-Time Systems Annex is not in use this value - -- is not important. + -- Users must specify the ceiling priority for the object. If the + -- Real-Time Systems Annex is not in use this value is not important. is pragma Priority (Ceiling); entry Seize; - -- Blocks caller until/unless the semaphore's internal counter - -- is greater than zero. - -- Decrements the semaphore's internal counter when executed. + -- Blocks caller until/unless the semaphore's internal counter is + -- greater than zero. Decrements the semaphore's internal counter when + -- executed. procedure Release; - -- Increments the semaphore's internal counter. + -- Increments the semaphore's internal counter private Count : Natural := Initial_Value; @@ -75,23 +74,23 @@ package GNAT.Semaphores is ---------------------- protected type Binary_Semaphore - (Initially_Available : Boolean; - -- Binary semaphores are either available or not; there is no - -- internal count involved. The discriminant value determines - -- whether the individual object is initially available. + (Initially_Available : Boolean; + -- Binary semaphores are either available or not; there is no internal + -- count involved. The discriminant value determines whether the + -- individual object is initially available. + Ceiling : System.Priority) - -- Users must specify the ceiling priority for the object. - -- If the Real-Time Systems Annex is not in use - -- this value is not important. + -- Users must specify the ceiling priority for the object. If the + -- Real-Time Systems Annex is not in use this value is not important. is pragma Priority (Ceiling); entry Seize; - -- Blocks the caller unless/until semaphore is available. - -- After execution the semaphore is no longer available. + -- Blocks the caller unless/until semaphore is available. After + -- execution the semaphore is no longer available. procedure Release; - -- Makes the semaphore available. + -- Makes the semaphore available private Available : Boolean := Initially_Available; |