class ThreadSafe::MriCacheBackend
Constants
- WRITE_LOCK
We can get away with a single global write lock (instead of a per-instance one) because of the GVL/green threads.
NOTE: a neat idea of writing a c-ext to manually perform atomic put_if_absent, while relying on Ruby not releasing a GVL while calling a c-ext will not work because of the potentially Ruby implemented `#hash` and `#eql?` key methods.
Public Instance Methods
[]=(key, value)
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Calls superclass method
# File lib/thread_safe/mri_cache_backend.rb, line 12 def []=(key, value) WRITE_LOCK.synchronize { super } end
clear()
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Calls superclass method
# File lib/thread_safe/mri_cache_backend.rb, line 56 def clear WRITE_LOCK.synchronize { super } end
compute(key)
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Calls superclass method
# File lib/thread_safe/mri_cache_backend.rb, line 28 def compute(key) WRITE_LOCK.synchronize { super } end
compute_if_absent(key)
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Calls superclass method
# File lib/thread_safe/mri_cache_backend.rb, line 16 def compute_if_absent(key) if stored_value = _get(key) # fast non-blocking path for the most likely case stored_value else WRITE_LOCK.synchronize { super } end end
compute_if_present(key)
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Calls superclass method
# File lib/thread_safe/mri_cache_backend.rb, line 24 def compute_if_present(key) WRITE_LOCK.synchronize { super } end
delete(key)
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Calls superclass method
# File lib/thread_safe/mri_cache_backend.rb, line 48 def delete(key) WRITE_LOCK.synchronize { super } end
delete_pair(key, value)
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Calls superclass method
# File lib/thread_safe/mri_cache_backend.rb, line 52 def delete_pair(key, value) WRITE_LOCK.synchronize { super } end
get_and_set(key, value)
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Calls superclass method
# File lib/thread_safe/mri_cache_backend.rb, line 44 def get_and_set(key, value) WRITE_LOCK.synchronize { super } end
merge_pair(key, value)
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Calls superclass method
# File lib/thread_safe/mri_cache_backend.rb, line 32 def merge_pair(key, value) WRITE_LOCK.synchronize { super } end
replace_if_exists(key, new_value)
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Calls superclass method
# File lib/thread_safe/mri_cache_backend.rb, line 40 def replace_if_exists(key, new_value) WRITE_LOCK.synchronize { super } end
replace_pair(key, old_value, new_value)
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Calls superclass method
# File lib/thread_safe/mri_cache_backend.rb, line 36 def replace_pair(key, old_value, new_value) WRITE_LOCK.synchronize { super } end