Returns the list of command line argument strings the program was run
with.
distribution
Returns the Io distribution name as a string.
errorNumber
Returns the C errno string.
exit(optionalReturnCodeNumber)
Shutdown the IoState (io_free all objects) and return
control to the calling program (if any).
getEnvironmentVariable(nameString)
Returns a string with the value of the environment
variable whose name is specified by nameString.
getOptions(args)
This primitive is used to get command line options similar to Cs getopt().
It returns a map in containing the left side of the argument, with the
value of the right side. (The key will not contain
the beginning dashes (--).
Example:
options := System getOptions(args)
options foreach(k, v,
if(v type == List type,
v foreach(i, j, writeln(\"Got unnamed argument with value: \" .. j))
continue
)
writeln(\"Got option: \" .. k .. \" with value: \" .. v)
)
installPrefix
Returns the root path where io was installed. The default is /usr/local.
ioPath
Returns the path of io installation. The default is $INSTALL_PREFIX/lib/io.
iospecVersion
The version of IoSpec our IoVM is compatible with
iovmName
The name of our IoVM as used by IoSpec
launchPath
Returns a pathComponent of the launch file.
launchScript
Returns the path of the io file run on the command line. Returns nil if no file was run.
maxRecycledObjects
Returns the max number of recycled objects used.
platform
Returns a string description of the platform.
platformVersion
Returns the version id of the OS.
recycledObjectCount
Returns the current number of objects being held for recycling.
runCommand(cmd,
successStatus) Calls system and redirects stdout/err to tmp files. Returns object with exitStatus, stdout and stderr slots.
setEnvironmentVariable(keyString, valueString)
Sets the environment variable keyString to the value valueString.
setLobby(anObject)
Sets the root object of the garbage collector.
setMaxRecycledObjects(aNumber)
Sets the max number of recycled objects used.
sleep(secondsNumber)
Performs a *blocking* sleep call for specified number of seconds.
symbols
Returns a List containing all Symbols currently in the system.
system(aString)
Makes a system call and returns a Number for the return value.
thisProcessPid()
Return the process id (pid) for this Io process.
userInterruptHandler
Called when control-c is hit. Override to add custom behavior. Returns self.