+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
--- --
--- S Y S T E M . O S _ I N T E R F A C E --
--- --
--- S p e c --
--- --
--- $Revision: 1.1 $
--- --
--- Copyright (C) 1991-2001 Florida State University --
--- --
--- 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 2, or (at your option) any later ver- --
--- sion. GNARL 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. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNARL; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
--- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
--- --
--- GNARL was developed by the GNARL team at Florida State University. It is --
--- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
--- State University (http://www.gnat.com). --
--- --
-------------------------------------------------------------------------------
-
--- This is the OS/2 version of this package
-
--- This package encapsulates all direct interfaces to OS services
--- that are needed by children of System.
-
--- PLEASE DO NOT add any with-clauses to this package
--- or remove the pragma Preelaborate.
-
--- It is designed to be a bottom-level (leaf) package.
-
-with Interfaces.C;
-package System.OS_Interface is
- pragma Preelaborate;
-
- package C renames Interfaces.C;
-
- subtype int is C.int;
- subtype unsigned_long is C.unsigned_long;
-
- type Duration_In_Millisec is new C.long;
- -- New type to prevent confusing time functions in this package
- -- with time functions returning seconds or other units.
-
- type Thread_Id is new unsigned_long;
-
- -----------
- -- Errno --
- -----------
-
- function errno return int;
- pragma Import (C, errno, "__get_errno");
-
- EAGAIN : constant := 5;
- EINTR : constant := 13;
- EINVAL : constant := 14;
- ENOMEM : constant := 25;
-
- -------------
- -- Signals --
- -------------
-
- Max_Interrupt : constant := 15;
- type Signal is new int range 0 .. Max_Interrupt;
-
- -- Signals for OS/2, only SIGTERM used currently. The values are
- -- fake, since OS/2 uses 32 bit exception numbers that cannot be
- -- used to index arrays etc. The GNULLI maps these Unix-like signals
- -- to OS/2 exception numbers.
-
- -- SIGTERM is used for the abort interrupt.
-
- SIGHUP : constant := 1; -- hangup
- SIGINT : constant := 2; -- interrupt (rubout)
- SIGQUIT : constant := 3; -- quit (ASCD FS)
- SIGILL : constant := 4; -- illegal instruction (not reset)
- SIGTRAP : constant := 5; -- trace trap (not reset)
- SIGIOT : constant := 6; -- IOT instruction
- SIGEMT : constant := 0; -- EMT instruction
- SIGFPE : constant := 8; -- floating point exception
- SIGKILL : constant := 9; -- kill (cannot be caught or ignored)
- SIGBUS : constant := 10; -- bus error
- SIGSEGV : constant := 11; -- segmentation violation
- SIGSYS : constant := 12; -- bad argument to system call
- SIGPIPE : constant := 13; -- write on a pipe with no one to read it
- SIGALRM : constant := 14; -- alarm clock
- SIGTERM : constant := 15; -- software termination signal from kill
-
- subtype sigset_t is unsigned_long;
-
- ----------
- -- Time --
- ----------
-
- function Clock return Duration;
- pragma Inline (Clock);
- -- Clock measuring time since the epoch, which is the boot-time.
- -- The clock resolution is approximately 838 ns.
-
- procedure Delay_For (Period : in Duration_In_Millisec);
- pragma Inline (Delay_For);
- -- Changed Sleep to Delay_For, for consistency with System.Time_Operations
-
- ----------------
- -- Scheduling --
- ----------------
-
- -- Put the calling task at the end of the ready queue for its priority
-
- procedure Yield;
- pragma Inline (Yield);
-
-end System.OS_Interface;
projects / msp430-gcc.git / blobdiff