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Update comments in chain to be doxygen compatible

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This commit is contained in:
Michael Ford 2014-10-25 16:46:54 +08:00
parent b847e0139e
commit 2fdc3351d7
2 changed files with 42 additions and 38 deletions
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5
src/chain.cpp
View File

@ -7,8 +7,9 @@
using namespace std;
// CChain implementation
/**
* CChain implementation
*/
void CChain::SetTip(CBlockIndex *pindex) {
if (pindex == NULL) {
vChain.clear();

75
src/chain.h
View File

@ -50,38 +50,40 @@ struct CDiskBlockPos
};
enum BlockStatus {
// Unused.
//! Unused.
BLOCK_VALID_UNKNOWN = 0,
// Parsed, version ok, hash satisfies claimed PoW, 1 <= vtx count <= max, timestamp not in future
//! Parsed, version ok, hash satisfies claimed PoW, 1 <= vtx count <= max, timestamp not in future
BLOCK_VALID_HEADER = 1,
// All parent headers found, difficulty matches, timestamp >= median previous, checkpoint. Implies all parents
// are also at least TREE.
//! All parent headers found, difficulty matches, timestamp >= median previous, checkpoint. Implies all parents
//! are also at least TREE.
BLOCK_VALID_TREE = 2,
// Only first tx is coinbase, 2 <= coinbase input script length <= 100, transactions valid, no duplicate txids,
// sigops, size, merkle root. Implies all parents are at least TREE but not necessarily TRANSACTIONS. When all
// parent blocks also have TRANSACTIONS, CBlockIndex::nChainTx will be set.
/**
* Only first tx is coinbase, 2 <= coinbase input script length <= 100, transactions valid, no duplicate txids,
* sigops, size, merkle root. Implies all parents are at least TREE but not necessarily TRANSACTIONS. When all
* parent blocks also have TRANSACTIONS, CBlockIndex::nChainTx will be set.
*/
BLOCK_VALID_TRANSACTIONS = 3,
// Outputs do not overspend inputs, no double spends, coinbase output ok, immature coinbase spends, BIP30.
// Implies all parents are also at least CHAIN.
//! Outputs do not overspend inputs, no double spends, coinbase output ok, immature coinbase spends, BIP30.
//! Implies all parents are also at least CHAIN.
BLOCK_VALID_CHAIN = 4,
// Scripts & signatures ok. Implies all parents are also at least SCRIPTS.
//! Scripts & signatures ok. Implies all parents are also at least SCRIPTS.
BLOCK_VALID_SCRIPTS = 5,
// All validity bits.
//! All validity bits.
BLOCK_VALID_MASK = BLOCK_VALID_HEADER | BLOCK_VALID_TREE | BLOCK_VALID_TRANSACTIONS |
BLOCK_VALID_CHAIN | BLOCK_VALID_SCRIPTS,
BLOCK_HAVE_DATA = 8, // full block available in blk*.dat
BLOCK_HAVE_UNDO = 16, // undo data available in rev*.dat
BLOCK_HAVE_DATA = 8, //! full block available in blk*.dat
BLOCK_HAVE_UNDO = 16, //! undo data available in rev*.dat
BLOCK_HAVE_MASK = BLOCK_HAVE_DATA | BLOCK_HAVE_UNDO,
BLOCK_FAILED_VALID = 32, // stage after last reached validness failed
BLOCK_FAILED_CHILD = 64, // descends from failed block
BLOCK_FAILED_VALID = 32, //! stage after last reached validness failed
BLOCK_FAILED_CHILD = 64, //! descends from failed block
BLOCK_FAILED_MASK = BLOCK_FAILED_VALID | BLOCK_FAILED_CHILD,
};
@ -93,49 +95,50 @@ enum BlockStatus {
class CBlockIndex
{
public:
// pointer to the hash of the block, if any. memory is owned by this CBlockIndex
//! pointer to the hash of the block, if any. memory is owned by this CBlockIndex
const uint256* phashBlock;
// pointer to the index of the predecessor of this block
//! pointer to the index of the predecessor of this block
CBlockIndex* pprev;
// pointer to the index of some further predecessor of this block
//! pointer to the index of some further predecessor of this block
CBlockIndex* pskip;
// height of the entry in the chain. The genesis block has height 0
//! height of the entry in the chain. The genesis block has height 0
int nHeight;
// Which # file this block is stored in (blk?????.dat)
//! Which # file this block is stored in (blk?????.dat)
int nFile;
// Byte offset within blk?????.dat where this block's data is stored
//! Byte offset within blk?????.dat where this block's data is stored
unsigned int nDataPos;
// Byte offset within rev?????.dat where this block's undo data is stored
//! Byte offset within rev?????.dat where this block's undo data is stored
unsigned int nUndoPos;
// (memory only) Total amount of work (expected number of hashes) in the chain up to and including this block
//! (memory only) Total amount of work (expected number of hashes) in the chain up to and including this block
uint256 nChainWork;
// Number of transactions in this block.
// Note: in a potential headers-first mode, this number cannot be relied upon
//! Number of transactions in this block.
//! Note: in a potential headers-first mode, this number cannot be relied upon
unsigned int nTx;
// (memory only) Number of transactions in the chain up to and including this block.
// This value will be non-zero only if and only if transactions for this block and all its parents are available.
unsigned int nChainTx; // change to 64-bit type when necessary; won't happen before 2030
//! (memory only) Number of transactions in the chain up to and including this block.
//! This value will be non-zero only if and only if transactions for this block and all its parents are available.
//! Change to 64-bit type when necessary; won't happen before 2030
unsigned int nChainTx;
// Verification status of this block. See enum BlockStatus
//! Verification status of this block. See enum BlockStatus
unsigned int nStatus;
// block header
//! block header
int nVersion;
uint256 hashMerkleRoot;
unsigned int nTime;
unsigned int nBits;
unsigned int nNonce;
// (memory only) Sequencial id assigned to distinguish order in which blocks are received.
//! (memory only) Sequential id assigned to distinguish order in which blocks are received.
uint32_t nSequenceId;
void SetNull()
@ -254,7 +257,7 @@ public:
GetBlockHash().ToString());
}
// Check whether this block index entry is valid up to the passed validity level.
//! Check whether this block index entry is valid up to the passed validity level.
bool IsValid(enum BlockStatus nUpTo = BLOCK_VALID_TRANSACTIONS) const
{
assert(!(nUpTo & ~BLOCK_VALID_MASK)); // Only validity flags allowed.
@ -263,8 +266,8 @@ public:
return ((nStatus & BLOCK_VALID_MASK) >= nUpTo);
}
// Raise the validity level of this block index entry.
// Returns true if the validity was changed.
//! Raise the validity level of this block index entry.
//! Returns true if the validity was changed.
bool RaiseValidity(enum BlockStatus nUpTo)
{
assert(!(nUpTo & ~BLOCK_VALID_MASK)); // Only validity flags allowed.
@ -277,10 +280,10 @@ public:
return false;
}
// Build the skiplist pointer for this entry.
//! Build the skiplist pointer for this entry.
void BuildSkip();
// Efficiently find an ancestor of this block.
//! Efficiently find an ancestor of this block.
CBlockIndex* GetAncestor(int height);
const CBlockIndex* GetAncestor(int height) const;
};