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Diffstat (limited to 'gcc-4.4.3/gcc/ada/s-osprim.ads')
| -rw-r--r-- | gcc-4.4.3/gcc/ada/s-osprim.ads | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/gcc-4.4.3/gcc/ada/s-osprim.ads b/gcc-4.4.3/gcc/ada/s-osprim.ads deleted file mode 100644 index 05683b248..000000000 --- a/gcc-4.4.3/gcc/ada/s-osprim.ads +++ /dev/null @@ -1,91 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- --- -- --- S Y S T E M . O S _ P R I M I T I V E S -- --- -- --- S p e c -- --- -- --- Copyright (C) 1998-2009, Free Software Foundation, Inc. -- --- -- --- GNARL 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- -- --- ware Foundation; either version 3, or (at your option) any later ver- -- --- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- --- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- --- or FITNESS FOR A PARTICULAR PURPOSE. -- --- -- --- As a special exception under Section 7 of GPL version 3, you are granted -- --- additional permissions described in the GCC Runtime Library Exception, -- --- version 3.1, as published by the Free Software Foundation. -- --- -- --- You should have received a copy of the GNU General Public License and -- --- a copy of the GCC Runtime Library Exception along with this program; -- --- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- --- <http://www.gnu.org/licenses/>. -- --- -- --- GNARL was developed by the GNARL team at Florida State University. -- --- Extensive contributions were provided by Ada Core Technologies, Inc. -- --- -- ------------------------------------------------------------------------------- - --- This package provides low level primitives used to implement clock and --- delays in non tasking applications. - --- The choice of the real clock/delay implementation (depending on whether --- tasking is involved or not) is done via soft links (see s-soflin.ads) - --- NEVER add any dependency to tasking packages here - -package System.OS_Primitives is - pragma Preelaborate; - - Max_Sensible_Delay : constant Duration := - Duration'Min (183 * 24 * 60 * 60.0, - Duration'Last); - -- Max of half a year delay, needed to prevent exceptions for large delay - -- values. It seems unlikely that any test will notice this restriction, - -- except in the case of applications setting the clock at run time (see - -- s-tastim.adb). Also note that a larger value might cause problems (e.g - -- overflow, or more likely OS limitation in the primitives used). In the - -- case where half a year is too long (which occurs in high integrity mode - -- with 32-bit words, and possibly on some specific ports of GNAT), - -- Duration'Last is used instead. - - procedure Initialize; - -- Initialize global settings related to this package. This procedure - -- should be called before any other subprograms in this package. Note - -- that this procedure can be called several times. - - function Clock return Duration; - pragma Inline (Clock); - -- Returns "absolute" time, represented as an offset relative to "the - -- Epoch", which is Jan 1, 1970 00:00:00 UTC on UNIX systems. This - -- implementation is affected by system's clock changes. - - function Monotonic_Clock return Duration; - pragma Inline (Monotonic_Clock); - -- Returns "absolute" time, represented as an offset relative to "the Unix - -- Epoch", which is Jan 1, 1970 00:00:00 UTC. This clock implementation is - -- immune to the system's clock changes. - - Relative : constant := 0; - Absolute_Calendar : constant := 1; - Absolute_RT : constant := 2; - -- Values for Mode call below. Note that the compiler (exp_ch9.adb) relies - -- on these values. So any change here must be reflected in corresponding - -- changes in the compiler. - - procedure Timed_Delay (Time : Duration; Mode : Integer); - -- Implements the semantics of the delay statement when no tasking is used - -- in the application. - -- - -- Mode is one of the three values above - -- - -- Time is a relative or absolute duration value, depending on Mode. - -- - -- Note that currently Ada.Real_Time always uses the tasking run time, - -- so this procedure should never be called with Mode set to Absolute_RT. - -- This may change in future or bare board implementations. - -end System.OS_Primitives; |