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DottaandPaperclip
05f5c9a4e0
Reduce diagnostic polling pressure while retaining fatal inspection failures and exact process cleanup. Keep shared inspection defaults and original startup assertions unchanged. Co-Authored-By: Paperclip <noreply@paperclip.ing>
52 lines
2.6 KiB
Python
52 lines
2.6 KiB
Python
"""One diagnostic child, deferred cancellation through handle publication."""
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import time,subprocess
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from launch_gate import LaunchGate
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from source_guard import require
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from owned_processes import process_table,command_tokens,ProcessInspectionUnavailable
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class DiagnosticInspection:
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"""Same identity inspection, bounded by the current diagnostic lifecycle phase."""
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def __init__(self,owner,child):self.owner=owner;self.child=child
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def budget(self):
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deadline=self.owner.stop_deadline if self.owner.stop_deadline is not None else self.child.deadline
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require(deadline is not None,'Diagnostic inspection before deadline publication')
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remaining=deadline-self.child.clock()
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require(remaining>0,'Diagnostic inspection deadline')
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return min(5,remaining)
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def table(self):return process_table(timeout=self.budget())
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def argv(self,pid):
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try:return command_tokens(pid,timeout=self.budget())
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except ProcessInspectionUnavailable as error:
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# Active diagnosis must not continue with an unresolved identity. Cleanup
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# retains its existing bounded fresh-inspection/revalidation policy.
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if self.owner.stop_deadline is None:raise RuntimeError('Diagnostic active argv inspection failed') from error
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raise
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class DiagnosticChild:
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def __init__(self,owner):self.owner=owner;self.child=None;self.attempted=False;self.uncertain=False;self.retired=False;self.cancelled=None;self.gate=LaunchGate(self.retire);self.deadline=None;self.clock=time.monotonic
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def cancel(self,reason):self.cancelled=reason;self.gate.cancel(reason)
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def retire(self,child):
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if self.retired:return
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try:
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result=self.owner.stop(child.pid)
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require(result['status']=='stopped' and not self.owner.live(),'Diagnostic descendants remain')
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child.wait(timeout=10);self.retired=True
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except BaseException:self.uncertain=True;raise
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def execute(self,factory,timeout,clock=time.monotonic,sleep=time.sleep):
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require(not self.attempted and not self.uncertain,'Diagnostic may execute once only')
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self.clock=clock;self.deadline=clock()+timeout
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def before():
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if self.cancelled:self.gate.cancel(self.cancelled)
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def launch():self.attempted=True;return factory()
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def publish(child):self.child=child;self.owner.observe(child.pid)
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try:
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self.gate.spawn(launch,publish,before)
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while self.child.poll() is None:
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require(clock()<self.deadline,'Diagnostic outer deadline');self.owner.observe(self.child.pid)
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require(clock()<self.deadline,'Diagnostic outer deadline');sleep(min(.5,self.deadline-clock()))
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self.owner.observe(self.child.pid)
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finally:
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if self.child is not None:self.retire(self.child)
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elif self.attempted:self.uncertain=True
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return self.child.returncode
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