#include <wvbufstore.h>
Inheritance diagram for WvDynBufStore:
Public Member Functions | |
WvDynBufStore (size_t _granularity, size_t _minalloc, size_t _maxalloc) | |
virtual size_t | free () const |
virtual size_t | optallocable () const |
virtual void * | alloc (size_t count) |
virtual size_t | used () const |
virtual size_t | optgettable () const |
virtual const void * | get (size_t count) |
virtual void | unget (size_t count) |
virtual size_t | ungettable () const |
virtual void | zap () |
virtual void | unalloc (size_t count) |
virtual size_t | unallocable () const |
virtual size_t | optpeekable (int offset) const |
virtual void * | mutablepeek (int offset, size_t count) |
virtual bool | isreadable () const |
virtual void | skip (size_t count) |
virtual size_t | peekable (int offset) const |
virtual const void * | peek (int offset, size_t count) |
void | move (void *buf, size_t count) |
void | copy (void *buf, int offset, size_t count) |
virtual bool | iswritable () const |
void | put (const void *data, size_t count) |
void | fastput (const void *data, size_t count) |
void | poke (const void *data, int offset, size_t count) |
virtual void | merge (WvBufStore &instore, size_t count) |
void | basicmerge (WvBufStore &instore, size_t count) |
Protected Member Functions | |
virtual WvBufStore * | newbuffer (size_t minsize) |
Called when a new buffer must be allocated to coalesce chunks. | |
virtual bool | usessubbuffers () const |
Returns true if the buffer uses subbuffers for storage. | |
virtual size_t | numsubbuffers () const |
Returns the number of subbuffers in the buffer. | |
virtual WvBufStore * | firstsubbuffer () const |
Returns the first subbuffer. | |
virtual void | appendsubbuffer (WvBufStore *buffer, bool autofree) |
Appends a subbuffer to the buffer. | |
virtual void | prependsubbuffer (WvBufStore *buffer, bool autofree) |
Prepends a subbuffer to the buffer. | |
virtual bool | unlinksubbuffer (WvBufStore *buffer, bool allowautofree) |
Unlinks the specified subbuffer. | |
virtual void | recyclebuffer (WvBufStore *buffer) |
Called when a buffer with autofree is removed from the list. | |
int | search (WvBufStoreList::Iter &it, int offset) const |
Searches for the buffer containing the offset. | |
WvBufStore * | coalesce (WvBufStoreList::Iter &it, size_t count) |
Coalesces a sequence of buffers. | |
Protected Attributes | |
WvBufStoreList | list |
size_t | totalused |
size_t | maxungettable |
int | granularity |
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Called when a new buffer must be allocated to coalesce chunks. "minsize" is the minimum size for the new buffer Returns: the new buffer Reimplemented from WvLinkedBufferStore. |
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Returns the first subbuffer. Returns: the buffer or NULL if none or not supported Reimplemented from WvBufStore. |
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Unlinks the specified subbuffer. Only autofrees the buffer if allowautofree == true. Returns: the autofree flag for the buffer Reimplemented from WvBufStore. |
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Called when a buffer with autofree is removed from the list. This function is not called during object destruction. "buffer" is the buffer to be destroyed |
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Searches for the buffer containing the offset. "it" is the iterator updated to point to buffer found, or to an invalid region if the offset is invalid "offset" is the offset for which to search Returns: the corrected offset within the buffer at it.ptr() |
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Coalesces a sequence of buffers. "it" is the iterator pointing to the first buffer "count" is the required number of contiguous used bytes Returns: the composite buffer |