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CAutoFile: Explicit Get() and remove unused methods

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Also add documentation to some methods.
This commit is contained in:
Wladimir J. van der Laan 2014-10-20 12:45:50 +02:00
parent fef24cab1a
commit a873823864
No known key found for this signature in database
GPG Key ID: 74810B012346C9A6
5 changed files with 25 additions and 18 deletions
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4
src/init.cpp
View File

@ -139,7 +139,7 @@ void Shutdown()
{
boost::filesystem::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME;
CAutoFile est_fileout(fopen(est_path.string().c_str(), "wb"), SER_DISK, CLIENT_VERSION);
if (est_fileout)
if (!est_fileout.IsNull())
mempool.WriteFeeEstimates(est_fileout);
else
LogPrintf("%s: Failed to write fee estimates to %s\n", __func__, est_path.string());
@ -1064,7 +1064,7 @@ bool AppInit2(boost::thread_group& threadGroup)
boost::filesystem::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME;
CAutoFile est_filein(fopen(est_path.string().c_str(), "rb"), SER_DISK, CLIENT_VERSION);
// Allowed to fail as this file IS missing on first startup.
if (est_filein)
if (!est_filein.IsNull())
mempool.ReadFeeEstimates(est_filein);
fFeeEstimatesInitialized = true;

16
src/main.cpp
View File

@ -1051,7 +1051,7 @@ bool GetTransaction(const uint256 &hash, CTransaction &txOut, uint256 &hashBlock
CBlockHeader header;
try {
file >> header;
fseek(file, postx.nTxOffset, SEEK_CUR);
fseek(file.Get(), postx.nTxOffset, SEEK_CUR);
file >> txOut;
} catch (std::exception &e) {
return error("%s : Deserialize or I/O error - %s", __func__, e.what());
@ -1114,16 +1114,16 @@ bool WriteBlockToDisk(CBlock& block, CDiskBlockPos& pos)
fileout << FLATDATA(Params().MessageStart()) << nSize;
// Write block
long fileOutPos = ftell(fileout);
long fileOutPos = ftell(fileout.Get());
if (fileOutPos < 0)
return error("WriteBlockToDisk : ftell failed");
pos.nPos = (unsigned int)fileOutPos;
fileout << block;
// Flush stdio buffers and commit to disk before returning
fflush(fileout);
fflush(fileout.Get());
if (!IsInitialBlockDownload())
FileCommit(fileout);
FileCommit(fileout.Get());
return true;
}
@ -2843,7 +2843,7 @@ bool static LoadBlockIndexDB()
for (std::set<int>::iterator it = setBlkDataFiles.begin(); it != setBlkDataFiles.end(); it++)
{
CDiskBlockPos pos(*it, 0);
if (!CAutoFile(OpenBlockFile(pos, true), SER_DISK, CLIENT_VERSION)) {
if (CAutoFile(OpenBlockFile(pos, true), SER_DISK, CLIENT_VERSION).IsNull()) {
return false;
}
}
@ -4556,7 +4556,7 @@ bool CBlockUndo::WriteToDisk(CDiskBlockPos &pos, const uint256 &hashBlock)
fileout << FLATDATA(Params().MessageStart()) << nSize;
// Write undo data
long fileOutPos = ftell(fileout);
long fileOutPos = ftell(fileout.Get());
if (fileOutPos < 0)
return error("CBlockUndo::WriteToDisk : ftell failed");
pos.nPos = (unsigned int)fileOutPos;
@ -4569,9 +4569,9 @@ bool CBlockUndo::WriteToDisk(CDiskBlockPos &pos, const uint256 &hashBlock)
fileout << hasher.GetHash();
// Flush stdio buffers and commit to disk before returning
fflush(fileout);
fflush(fileout.Get());
if (!IsInitialBlockDownload())
FileCommit(fileout);
FileCommit(fileout.Get());
return true;
}

2
src/net.cpp
View File

@ -1939,7 +1939,7 @@ bool CAddrDB::Write(const CAddrMan& addr)
catch (std::exception &e) {
return error("%s : Serialize or I/O error - %s", __func__, e.what());
}
FileCommit(fileout);
FileCommit(fileout.Get());
fileout.fclose();
// replace existing peers.dat, if any, with new peers.dat.XXXX

19
src/serialize.h
View File

@ -1116,14 +1116,21 @@ public:
}
}
/** Get wrapped FILE* with transfer of ownership.
* @note This will invalidate the CAutoFile object, and makes it the responsibility of the caller
* of this function to clean up the returned FILE*.
*/
FILE* release() { FILE* ret = file; file = NULL; return ret; }
operator FILE*() { return file; }
FILE* operator->() { return file; }
FILE& operator*() { return *file; }
FILE** operator&() { return &file; }
FILE* operator=(FILE* pnew) { return file = pnew; }
bool IsNull() const { return (file == NULL); }
/** Get wrapped FILE* without transfer of ownership.
* @note Ownership of the FILE* will remain with this class. Use this only if the scope of the
* CAutoFile outlives use of the passed pointer.
*/
FILE* Get() const { return file; }
/** Return true if the wrapped FILE* is NULL, false otherwise.
*/
bool IsNull() const { return (file == NULL); }
//
// Stream subset

2
src/test/checkblock_tests.cpp
View File

@ -36,7 +36,7 @@ bool read_block(const std::string& filename, CBlock& block)
fseek(fp, 8, SEEK_SET); // skip msgheader/size
CAutoFile filein(fp, SER_DISK, CLIENT_VERSION);
if (!filein) return false;
if (filein.IsNull()) return false;
filein >> block;