K&R formatting
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+72
-70
@@ -30,98 +30,100 @@
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#define BlockSize (1 << 12)
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#define ENTRIES ((BlockSize - sizeof(size_t) ) / sizeof(unsigned char))
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namespace Konsole {
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namespace Konsole
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{
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struct Block {
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Block() {
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size = 0;
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}
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unsigned char data[ENTRIES];
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size_t size;
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Block() {
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size = 0;
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}
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unsigned char data[ENTRIES];
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size_t size;
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};
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// ///////////////////////////////////////////////////////
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class BlockArray {
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class BlockArray
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{
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public:
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/**
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* Creates a history file for holding
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* maximal size blocks. If more blocks
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* are requested, then it drops earlier
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* added ones.
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*/
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BlockArray();
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/**
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* Creates a history file for holding
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* maximal size blocks. If more blocks
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* are requested, then it drops earlier
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* added ones.
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*/
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BlockArray();
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/// destructor
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~BlockArray();
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/// destructor
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~BlockArray();
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/**
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* adds the Block at the end of history.
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* This may drop other blocks.
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*
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* The ownership on the block is transfered.
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* An unique index number is returned for accessing
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* it later (if not yet dropped then)
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*
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* Note, that the block may be dropped completely
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* if history is turned off.
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*/
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size_t append(Block * block);
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/**
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* adds the Block at the end of history.
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* This may drop other blocks.
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*
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* The ownership on the block is transfered.
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* An unique index number is returned for accessing
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* it later (if not yet dropped then)
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*
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* Note, that the block may be dropped completely
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* if history is turned off.
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*/
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size_t append(Block * block);
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/**
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* gets the block at the index. Function may return
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* 0 if the block isn't available any more.
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*
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* The returned block is strictly readonly as only
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* maped in memory - and will be invalid on the next
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* operation on this class.
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*/
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const Block * at(size_t index);
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/**
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* gets the block at the index. Function may return
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* 0 if the block isn't available any more.
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*
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* The returned block is strictly readonly as only
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* maped in memory - and will be invalid on the next
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* operation on this class.
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*/
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const Block * at(size_t index);
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/**
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* reorders blocks as needed. If newsize is null,
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* the history is emptied completely. The indices
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* returned on append won't change their semantic,
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* but they may not be valid after this call.
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*/
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bool setHistorySize(size_t newsize);
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/**
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* reorders blocks as needed. If newsize is null,
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* the history is emptied completely. The indices
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* returned on append won't change their semantic,
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* but they may not be valid after this call.
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*/
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bool setHistorySize(size_t newsize);
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size_t newBlock();
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size_t newBlock();
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Block * lastBlock() const;
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Block * lastBlock() const;
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/**
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* Convenient function to set the size in KBytes
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* instead of blocks
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*/
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bool setSize(size_t newsize);
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/**
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* Convenient function to set the size in KBytes
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* instead of blocks
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*/
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bool setSize(size_t newsize);
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size_t len() const {
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return length;
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}
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size_t len() const {
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return length;
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}
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bool has(size_t index) const;
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bool has(size_t index) const;
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size_t getCurrent() const {
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return current;
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}
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size_t getCurrent() const {
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return current;
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}
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private:
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void unmap();
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void increaseBuffer();
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void decreaseBuffer(size_t newsize);
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void unmap();
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void increaseBuffer();
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void decreaseBuffer(size_t newsize);
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size_t size;
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// current always shows to the last inserted block
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size_t current;
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size_t index;
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size_t size;
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// current always shows to the last inserted block
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size_t current;
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size_t index;
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Block * lastmap;
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size_t lastmap_index;
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Block * lastblock;
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Block * lastmap;
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size_t lastmap_index;
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Block * lastblock;
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int ion;
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size_t length;
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int ion;
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size_t length;
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};
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