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Modify FSTD #6

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Modify FSTD #6

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a8e9baa
Relocate calls to CheckDiskSpace
morcos May 11, 2015
51208f2
Relocate fCheckForPruning
morcos May 11, 2015
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20 changes: 11 additions & 9 deletions src/main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1887,6 +1887,7 @@ bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode) {
try {
if (fPruneMode && fCheckForPruning) {
FindFilesToPrune(setFilesToPrune);
fCheckForPruning = false;
if (!setFilesToPrune.empty()) {
fFlushForPrune = true;
if (!fHavePruned) {
Expand Down Expand Up @@ -1919,12 +1920,8 @@ bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode) {
bool fDoFullFlush = (mode == FLUSH_STATE_ALWAYS) || fCacheLarge || fCacheCritical || fPeriodicFlush || fFlushForPrune;
// Write blocks and block index to disk.
if (fDoFullFlush || fPeriodicWrite) {
// Typical CCoins structures on disk are around 128 bytes in size.
// Pushing a new one to the database can cause it to be written
// twice (once in the log, and once in the tables). This is already
// an overestimation, as most will delete an existing entry or
// overwrite one. Still, use a conservative safety factor of 2.
if (fDoFullFlush && !CheckDiskSpace(128 * 2 * 2 * pcoinsTip->GetCacheSize()))
// Depend on nMinDiskSpace to ensure we can write block index
if (!CheckDiskSpace(0))
return state.Error("out of disk space");
// First make sure all block and undo data is flushed to disk.
FlushBlockFile();
Expand All @@ -1947,14 +1944,19 @@ bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode) {
}
}
// Finally remove any pruned files
if (fFlushForPrune) {
if (fFlushForPrune)
UnlinkPrunedFiles(setFilesToPrune);
fCheckForPruning = false;
}
nLastWrite = nNow;
}
// Flush best chain related state. This can only be done if the blocks / block index write was also done.
if (fDoFullFlush) {
// Typical CCoins structures on disk are around 128 bytes in size.
// Pushing a new one to the database can cause it to be written
// twice (once in the log, and once in the tables). This is already
// an overestimation, as most will delete an existing entry or
// overwrite one. Still, use a conservative safety factor of 2.
if (!CheckDiskSpace(128 * 2 * 2 * pcoinsTip->GetCacheSize()))
return state.Error("out of disk space");
// Flush the chainstate (which may refer to block index entries).
if (!pcoinsTip->Flush())
return state.Abort("Failed to write to coin database");
Expand Down