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[entropy.db.skel] document further locking infrastructure assumptions

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This commit is contained in:
Fabio Erculiani
2013-12-01 14:41:43 +01:00
parent 688b8f9796
commit 5b6da64e35
1 changed files with 30 additions and 0 deletions
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lib/entropy/db/skel.py
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@@ -431,6 +431,11 @@ class EntropyRepositoryBase(TextInterface, EntropyRepositoryPluginStore):
"""
Acquire a shared file lock for this repository (context manager).
This is used for inter-process synchronization only.
This locking infrastructure assumes that resources initialized during
object instantiation are valid throughout the whole object lifecycle.
If this is not the case, please synchronize using the Entropy Resources
General Lock (entropy.tools.acquire_entropy_locks()).
"""
acquired = False
try:
@@ -469,6 +474,11 @@ class EntropyRepositoryBase(TextInterface, EntropyRepositoryPluginStore):
"""
Acquire an exclusive file lock for this repository (context manager).
This is used for inter-process synchronization only.
This locking infrastructure assumes that resources initialized during
object instantiation are valid throughout the whole object lifecycle.
If this is not the case, please synchronize using the Entropy Resources
General Lock (entropy.tools.acquire_entropy_locks()).
"""
acquired = False
try:
@@ -506,6 +516,11 @@ class EntropyRepositoryBase(TextInterface, EntropyRepositoryPluginStore):
"""
Acquire a shared file lock for this repository.
This is used for inter-process synchronization only.
This locking infrastructure assumes that resources initialized during
object instantiation are valid throughout the whole object lifecycle.
If this is not the case, please synchronize using the Entropy Resources
General Lock (entropy.tools.acquire_entropy_locks()).
"""
raise NotImplementedError()
@@ -513,6 +528,11 @@ class EntropyRepositoryBase(TextInterface, EntropyRepositoryPluginStore):
"""
Acquire an exclusive file lock for this repository.
This is used for inter-process synchronization only.
This locking infrastructure assumes that resources initialized during
object instantiation are valid throughout the whole object lifecycle.
If this is not the case, please synchronize using the Entropy Resources
General Lock (entropy.tools.acquire_entropy_locks()).
"""
raise NotImplementedError()
@@ -521,6 +541,11 @@ class EntropyRepositoryBase(TextInterface, EntropyRepositoryPluginStore):
Try to acquire a shared file lock for this repository.
This is used for inter-process synchronization only.
This locking infrastructure assumes that resources initialized during
object instantiation are valid throughout the whole object lifecycle.
If this is not the case, please synchronize using the Entropy Resources
General Lock (entropy.tools.acquire_entropy_locks()).
@return: True, if acquired, False otherwise.
@rtype: bool
"""
@@ -531,6 +556,11 @@ class EntropyRepositoryBase(TextInterface, EntropyRepositoryPluginStore):
Try to acquire an exclusive file lock for this repository.
This is used for inter-process synchronization only.
This locking infrastructure assumes that resources initialized during
object instantiation are valid throughout the whole object lifecycle.
If this is not the case, please synchronize using the Entropy Resources
General Lock (entropy.tools.acquire_entropy_locks()).
@return: True, if acquired, False otherwise.
@rtype: bool
"""