[Subversion] / PEAK / CHANGES.txt  

Diff of /PEAK/CHANGES.txt

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version 1556, Sun Dec 21 02:24:14 2003 UTC version 1557, Sun Dec 21 03:04:46 2003 UTC
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    away in the alpha 4 development cycle.     away in the alpha 4 development cycle.
   
  - Added 'commands.lookupCommand()' to look up a command shortcut or URL, ala   - Added 'commands.lookupCommand()' to look up a command shortcut or URL, ala
    the `peak` script or `commands.Bootstrap` class.  Also added various     the 'peak' script or 'commands.Bootstrap' class.  Also added various
    `commands.ErrorSubcommand` subclasses to make it easier to issue errors     'commands.ErrorSubcommand' subclasses to make it easier to issue errors
    from subcommands.     from/for subcommands.
   
  - Added 'peak.core' as a minimal subset of 'peak.api'.  'peak.core' offers   - Added 'peak.core' as a minimal subset of 'peak.api'.  'peak.core' offers
    only "core" API packages and primitives, not the full set of available     only "core" API packages and primitives, not the full set of available
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  - Added 'IMainLoop.setExitCode()' and 'IMainLoop.childForked()' methods, to   - Added 'IMainLoop.setExitCode()' and 'IMainLoop.childForked()' methods, to
    allow reactor-driven components to control the mainloop's exit code.     allow reactor-driven components to control the mainloop's exit code.
   
  - DEPRECATED 'peak.util.signal_stack'.  Instead, bind to a   - Added 'running.ISignalManager' and a default implementation.  Use its
    'running.ISignalManager' and use its 'addHandler()/removeHandler()' methods.     'addHandler()/removeHandler()' methods to add or remove signal handlers.
    This has the same effect as 'pushSignals()' and 'popSignals()', except that     Signal handlers define methods like 'def SIGCHLD(self,signum,frame):' that
    you do not have to remove handlers in the same order as you add them, and     will be called when the associated signal is received.  All active handlers
    *all* active handlers are invoked for a given signal that they handle.     for a given signal are invoked, so you can easily have multiple components
      listen for 'SIGCHLD', for example.
   
  - Added 'IBasicReactor.crash()', which forces an immediate reactor loop exit,   - Added 'IBasicReactor.crash()', which forces an immediate reactor loop exit,
    ignoring pending scheduled calls.     ignoring pending scheduled calls.
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    instead of 'PropertySet' instances.     instead of 'PropertySet' instances.
   
  - DEPRECATED the 'config.PropertySet' class; please convert to using   - DEPRECATED the 'config.PropertySet' class; please convert to using
    'config.Namespace', as it will disappear in the 0.5alpha4 release cycle.     'config.Namespace', as 'PropertySet' will disappear in the 0.5alpha4 release
      cycle.
   
  - SQL connection objects now get their type converters from a distinct   - SQL connection objects now get their type converters from a distinct
    property namespace for each DBAPI driver.  For example a driver using the     property namespace for each DBAPI driver.  For example a driver using the
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    'naming.IBasicContext', which does something very different.     'naming.IBasicContext', which does something very different.
   
  - 'binding.Obtain()' (formerly 'binding.bindTo()' and 'binding.bindSequence()')   - 'binding.Obtain()' (formerly 'binding.bindTo()' and 'binding.bindSequence()')
    now pre-adapt their arguments to 'IComponentKey', to speed lookups at     now pre-adapt their arguments to 'IComponentKey', to speed up lookups at
    runtime, and to ensure that errors due to an unusable parameter type occur     runtime, and to ensure that errors due to an unusable parameter type occur
    at class creation time instead of waiting until lookup time.     at class creation time instead of waiting until lookup time.
   
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    property ('peak.running.reactor.checkInterval') to determine how long it     property ('peak.running.reactor.checkInterval') to determine how long it
    should run 'select()' calls for, when there are no scheduled tasks.     should run 'select()' calls for, when there are no scheduled tasks.
   
  - 'peak.running.scheduler.UntwistedReactor' now supports using a "signal   - 'peak.running.scheduler.MainLoop' now supports using a "signal
    manager" component (via the 'peak.running.signalManager' property) to     handler" component (via the 'peak.running.mainLoop.signalHandler' property)
    process signals while a 'run()' loop is in progress.  Signal managers can     to process signals while a 'run()' loop is in progress.  Signal handlers can
    also be added or removed at any time via the new 'peak.util.signal_stack'     also be added or removed at any time via the 'running.ISignalManager'
    module.     service.
   
  - 'peak.running.commands.AbstractCommand' now offers a '_run()' method that   - 'peak.running.commands.AbstractCommand' now offers a '_run()' method that
    can be overridden in subclasses, instead of 'run()'.  If you override the     can be overridden in subclasses, instead of 'run()'.  If you override the

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