Panda3D
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This is a special extension to ReferenceCount that includes dual reference counts: the standard reference count number, which includes all references to the object, and a separate number (the cache reference count) that counts the number of references to the object just within its cache alone. More...
Public Member Functions | |
cacheRef () | |
Explicitly increments the cache reference count and the normal reference count simultaneously. More... | |
bool | cacheUnref () |
Explicitly decrements the cache reference count and the normal reference count simultaneously. More... | |
int | getCacheRefCount () |
Returns the current reference count. More... | |
bool | testRefCountIntegrity () |
Does some easy checks to make sure that the reference count isn't completely bogus. More... | |
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object | __reduce__ () |
object | __reduce_persist__ (object pickler) |
VectorUchar | encodeToBamStream () |
Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a bytes object. More... | |
bool | encodeToBamStream (VectorUchar data, BamWriter writer) |
Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. More... | |
fillin (DatagramIterator scan, BamReader manager) | |
This internal function is intended to be called by each class's make_from_bam() method to read in all of the relevant data from the BamFile for the new object. More... | |
UpdateSeq | getBamModified () |
Returns the current bam_modified counter. More... | |
markBamModified () | |
Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. More... | |
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TypeHandle | getType () |
int | getTypeIndex () |
Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More... | |
bool | isExactType (TypeHandle handle) |
Returns true if the current object is the indicated type exactly. More... | |
bool | isOfType (TypeHandle handle) |
Returns true if the current object is or derives from the indicated type. More... | |
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int | getRefCount () |
Returns the current reference count. More... | |
ref () | |
Explicitly increments the reference count. More... | |
bool | testRefCountIntegrity () |
Does some easy checks to make sure that the reference count isn't completely bogus. More... | |
bool | testRefCountNonzero () |
Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More... | |
bool | unref () |
Explicitly decrements the reference count. More... | |
Static Public Member Functions | |
static TypeHandle | getClassType () |
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static TypedWritableReferenceCount | decodeFromBamStream (VectorUchar data, BamReader reader) |
Reads the bytes created by a previous call to encode_to_bam_stream(), and extracts and returns the single object on those bytes. More... | |
static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
Public Attributes | |
int | cache_ref_count |
Returns the current reference count. More... | |
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TypeHandle | type |
Returns the TypeHandle representing this object's type. More... | |
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int | ref_count |
The current reference count. More... | |
This is a special extension to ReferenceCount that includes dual reference counts: the standard reference count number, which includes all references to the object, and a separate number (the cache reference count) that counts the number of references to the object just within its cache alone.
When get_ref_count() == get_cache_ref_count(), the object is not referenced outside the cache.
The cache refs must be explicitly maintained; there is no PointerTo<> class to maintain the cache reference counts automatically. The cache reference count is automatically included in the overall reference count: calling cache_ref() and cache_unref() automatically calls ref() and unref().
cacheRef | ( | ) |
Explicitly increments the cache reference count and the normal reference count simultaneously.
bool cacheUnref | ( | ) |
Explicitly decrements the cache reference count and the normal reference count simultaneously.
The return value is true if the new reference count is nonzero, false if it is zero.
int getCacheRefCount | ( | ) |
Returns the current reference count.
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bool testRefCountIntegrity | ( | ) |
Does some easy checks to make sure that the reference count isn't completely bogus.
int cache_ref_count |
Returns the current reference count.