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-- Copyright (C) 2007-2008 Gabriel Dos Reis.
-- All rights reserved.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions are
-- met:
--
-- - Redistributions of source code must retain the above copyright
-- notice, this list of conditions and the following disclaimer.
--
-- - Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in
-- the documentation and/or other materials provided with the
-- distribution.
--
-- - Neither the name of The Numerical Algorithms Group Ltd. nor the
-- names of its contributors may be used to endorse or promote products
-- derived from this software without specific prior written permission.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
-- IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
-- TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
-- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
-- OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--
--
--
-- This file contains interface to functionalities required from the
-- hosting operating systems. More to the point, it is mostly
-- a set of interfaces to native routines provided in the
-- supporting C runtime libopen-axiom-core.
--
import sys_-constants
import cfuns
namespace BOOT
module sys_-os
loadSystemRuntimeCore()
--% File System Support
++ change current working directory.
import oa__chdir: string -> int for changeDirectory
-- 0: success, -1: failure
++ remove file or directory tree.
import oa__unlink: string -> int for removeFile
-- 0: sucess, -1: failure
++ rename file or directory
import oa__rename: (string,string) -> int for renameFile
-- 0: success, -1 failure
++ create a directory
import oa__mkdir: string -> int for mkdir
-- 0: sucess, -1: failure.
++ Test whether a path names a directory.
import directoryp: string -> int for directoryp
++ Test whether a file exists and is accessible for read.
import readablep: string -> int for readablep
-- -1: inexistent.
-- 0: exist but read access denied.
-- 1: exist and read accress granted.
++ Test whether a file exists and is accessible for write.
import writeablep: string -> int for writeablep
-- -1: inexistent.
-- 0: exists but write access denied
-- 1: exists and write access granted
-- 2: inexistent but write access to parent directory granted.
import oa__filedesc__read: (int,buffer,int) -> int for readFromFileHandle
-- -1: failure; otherwise
-- actual read bytes count
import oa__filedesc__write: (int,buffer,int) -> int for writeToFileHandle
-- -1: failure; otherwise
-- actual written bytes count
import oa__filedesc__close: int -> int for closeFileHandle
-- -1: failure; otherwise 0.
import oa__getenv: string -> string for getEnv
--% Local IPC socket support
import oa__open__local__client__stream__socket: string -> int
for openLocalClientStreamSocket
-- -1: failure
--% INET socket stream support
import oa__open__ip4__client__stream__socket: (string,int) -> int
for openIP4ClientStreamSocket
import oa__socket__read: (int,string,int) -> int for readFromStreamSocket
import oa__socket__write: (int,string,int) -> int for writeToStreamSocket
import oa__close__socket: int -> int for closeSocket
--% OpenAxiom subsystem socket support
++ socket interface
import open__server: string -> int for openServer
import sock__get__int: int -> int for sockGetInt
import sock__send__int: (int,int) -> int for sockSendInt
import sock__get__string: int -> string for sockGetString
import sock__send__string__len: (int, string, int) -> int
for doSendString
sockSendString(type,str) ==
doSendString(type, str, LENGTH str)
import sock__get__float: int -> double for sockGetFloat
import sock__send__float: (int,double) -> int for sockSendFloat
import sock__send__wakeup: (int,int) -> int for sockSendWakeup
import server__switch: () -> int for serverSwitch
import flush__stdout: () -> int for flushStdout
import sock__send__signal: (int,int) -> int for sockSendSignal
import print__line: string -> int for printLine
--%
import oa__system: string -> int for runCommand
++ run a program with specified arguments
runProgram(prog,args) ==
)if %hasFeature KEYWORD::GCL
SYSTEM::SYSTEM CONCAT/[prog,:[:['" ",a] for a in args]]
)elseif %hasFeature KEYWORD::CLISP
EXT::RUN_-PROGRAM(prog,KEYWORD::ARGUMENTS,args)
)elseif %hasFeature KEYWORD::SBCL
SB_-EXT::RUN_-PROGRAM(prog,args)
)else
systemError '"don't how to execute external program with this Lisp"
)endif
++ numeric limits
)if %hasFeature KEYWORD::GCL
import plus__infinity: () -> double for plusInfinity
import minus__infinity: () -> double for minusInfinity
import NANQ: () -> double for NaNQ
$plusInfinity := plusInfinity()
$minusInfinity := minusInfinity()
$NaNValue := NaNQ()
)elseif %hasFeature KEYWORD::SBCL
$plusInfinity == SB_-EXT::DOUBLE_-FLOAT_-POSITIVE_-INFINITY
$minusInfinity == SB_-EXT::DOUBLE_-FLOAT_-NEGATIVE_-INFINITY
)else
-- In general Common Lisp does not provide support for infinities
-- and the like.
$plusInfinity == $DoubleFloatMaximum
$minusInfinity == -$plusInfinity
)endif
)if not %hasFeature KEYWORD::GCL
plusInfinity() ==
$plusInfinity
minusInfinity() ==
$minusInfinity
)endif
++ stdStreamIsTerminal:
++ returns 1 if the standard stream is attached to a terminal;
++ otherwise 0.
import std__stream__is__terminal: int -> int for stdStreamIsTerminal
--%
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