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util: Add PruneGBtoMiB() function

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Hennadii Stepanov 2019-11-12 12:14:52 +02:00
parent e35e4b2ba0
commit 2bede28cd9
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2 changed files with 7 additions and 3 deletions
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5
src/qt/optionsmodel.cpp
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@ -240,9 +240,8 @@ void OptionsModel::SetPruneEnabled(bool prune, bool force)
{
QSettings settings;
settings.setValue("bPrune", prune);
// Convert prune size from GB to MiB:
const uint64_t nPruneSizeMiB = (settings.value("nPruneSize").toInt() * GB_BYTES) >> 20;
std::string prune_val = prune ? std::to_string(nPruneSizeMiB) : "0";
const int64_t prune_target_mib = PruneGBtoMiB(settings.value("nPruneSize").toInt());
std::string prune_val = prune ? std::to_string(prune_target_mib) : "0";
if (force) {
m_node.forceSetArg("-prune", prune_val);
return;

5
src/qt/optionsmodel.h
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@ -22,6 +22,11 @@ static constexpr unsigned short DEFAULT_GUI_PROXY_PORT = 9050;
*/
static inline int PruneMiBtoGB(int64_t mib) { return (mib * 1024 * 1024 + GB_BYTES - 1) / GB_BYTES; }
/**
* Convert displayed prune target GB to configured MiB. Round down so roundtrip GB -> MiB -> GB conversion is stable.
*/
static inline int64_t PruneGBtoMiB(int gb) { return gb * GB_BYTES / 1024 / 1024; }
/** Interface from Qt to configuration data structure for Bitcoin client.
To Qt, the options are presented as a list with the different options
laid out vertically.