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Introduce a connection locking infrastructure

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The lock file is (a temporary file) opened in the parent process, whose
open fd is inherited by the workers after fork, and passed down through
the PlayContext. Connection grows lock/unlock methods which can be used
by individual connection plugins.
This commit is contained in:
Abhijit Menon-Sen 2015-08-01 09:26:07 +05:30
parent 88d3751c28
commit 5887e96b27
3 changed files with 21 additions and 0 deletions
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6
lib/ansible/playbook/play_context.py
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@ -161,6 +161,7 @@ class PlayContext(Base):
_private_key_file = FieldAttribute(isa='string', default=C.DEFAULT_PRIVATE_KEY_FILE)
_timeout = FieldAttribute(isa='int', default=C.DEFAULT_TIMEOUT)
_shell = FieldAttribute(isa='string')
_connection_lockfd= FieldAttribute(isa='int', default=None)
# privilege escalation fields
_become = FieldAttribute(isa='bool')
@ -244,6 +245,11 @@ class PlayContext(Base):
if options.connection:
self.connection = options.connection
# The lock file is opened in the parent process, and the workers will
# inherit the open file, so we just need to help them find it.
if options.connection_lockfile:
self.connection_lockfd = options.connection_lockfile.fileno()
self.remote_user = options.remote_user
self.private_key_file = options.private_key_file