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APTLoader: improve progress status info

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It is not needed anymore to hardcode the number of lines of
$FG_ROOT/Airports/apt.dat.gz. The new method, which relies on
SGPath::sizeInBytes() and sg_gzifstream::approxOffset(), works as well
for the other dat files.

Add a new NavCache rebuild phase, REBUILD_READING_APT_DAT_FILES, since
the process is now made of two parts.

Rename NavDataCachePrivate::getDatFilesPaths() to
NavDataCachePrivate::findDatFiles(), because it now returns a
DatFilesGroupInfo (new struct) instead of a PathList. For the same
reason, rename NavDataCachePrivate::aptDatPaths to
NavDataCachePrivate::aptDatFilesInfo. Adapt signatures, etc.

This requires up-to-date SimGear and FGData.
This commit is contained in:
Florent Rougon 2016-10-19 13:01:35 +02:00
parent 0ec47c9802
commit 101bdce343
6 changed files with 86 additions and 34 deletions

28
src/Airports/apt_loader.cxx
View file

@ -42,6 +42,7 @@
#include <simgear/structure/exception.hxx>
#include <simgear/misc/sg_path.hxx>
#include <cstddef> // std::size_t
#include <string>
#include <vector>
#include <utility> // std::pair, std::move()
@ -72,9 +73,6 @@ static FGPositioned::Type fptypeFromRobinType(unsigned int aType)
}
}
// generated by 'wc -l' on the uncompressed file
const unsigned int LINES_IN_APT_DAT = 2465648;
namespace flightgear
{
APTLoader::APTLoader()
@ -86,7 +84,9 @@ APTLoader::APTLoader()
APTLoader::~APTLoader() { }
void APTLoader::readAptDatFile(const SGPath &aptdb_file)
void APTLoader::readAptDatFile(const SGPath &aptdb_file,
std::size_t bytesReadSoFar,
std::size_t totalSizeOfAllAptDatFiles)
{
string apt_dat = aptdb_file.utf8Str(); // full path to the file being parsed
sg_gzifstream in(aptdb_file);
@ -150,8 +150,10 @@ void APTLoader::readAptDatFile(const SGPath &aptdb_file)
if ((line_num % 100) == 0) {
// every 100 lines
unsigned int percent = (line_num * 100) / LINES_IN_APT_DAT;
cache->setRebuildPhaseProgress(NavDataCache::REBUILD_AIRPORTS, percent);
unsigned int percent = ((bytesReadSoFar + in.approxOffset()) * 100)
/ totalSizeOfAllAptDatFiles;
cache->setRebuildPhaseProgress(
NavDataCache::REBUILD_READING_APT_DAT_FILES, percent);
}
// Extract the first field into 'rowCode'
@ -215,6 +217,9 @@ void APTLoader::readAptDatFile(const SGPath &aptdb_file)
void APTLoader::loadAirports()
{
AirportInfoMapType::size_type nbLoadedAirports = 0;
AirportInfoMapType::size_type nbAirports = airportInfoMap.size();
// Loop over all airports found in all apt.dat files
for (AirportInfoMapType::const_iterator it = airportInfoMap.begin();
it != airportInfoMap.end(); it++) {
@ -288,7 +293,18 @@ void APTLoader::loadAirports()
} // of loop over the second and subsequent apt.dat lines for the airport
finishAirport(aptDat);
nbLoadedAirports++;
if ((nbLoadedAirports % 300) == 0) {
// Every 300 airports
unsigned int percent = nbLoadedAirports * 100 / nbAirports;
cache->setRebuildPhaseProgress(NavDataCache::REBUILD_LOADING_AIRPORTS,
percent);
}
} // of loop over 'airportInfoMap'
SG_LOG( SG_GENERAL, SG_INFO,
"Loaded data for " << nbAirports << " airports" );
}
// Tell whether an apt.dat line is blank or a comment line

7
src/Airports/apt_loader.hxx
View file

@ -53,8 +53,11 @@ public:
APTLoader();
~APTLoader();
// Read the specified apt.dat file into 'airportInfoMap'
void readAptDatFile(const SGPath& aptdb_file);
// Read the specified apt.dat file into 'airportInfoMap'.
// 'bytesReadSoFar' and 'totalSizeOfAllAptDatFiles' are used for progress
// information.
void readAptDatFile(const SGPath& aptdb_file, std::size_t bytesReadSoFar,
std::size_t totalSizeOfAllAptDatFiles);
// Read all airports gathered in 'airportInfoMap' and load them into the
// navdata cache (even in case of overlapping apt.dat files,
// 'airportInfoMap' has only one entry per airport).

8
src/GUI/QtLauncher.cxx
View file

@ -111,8 +111,12 @@ void initNavCache()
phase = cache->rebuild();
switch (phase) {
case NavDataCache::REBUILD_AIRPORTS:
rebuildProgress.setLabelText(QT_TR_NOOP("Loading airport data"));
case NavDataCache::REBUILD_READING_APT_DAT_FILES:
rebuildProgress.setLabelText(QT_TR_NOOP("Reading airport data"));
break;
case NavDataCache::REBUILD_LOADING_AIRPORTS:
rebuildProgress.setLabelText(QT_TR_NOOP("Loading airports"));
break;
case NavDataCache::REBUILD_FIXES:

3
src/Main/fg_init.cxx
View file

@ -589,7 +589,8 @@ fgInitNav ()
static const char* splashIdentsByRebuildPhase[] = {
"loading-nav-dat",
"navdata-airports",
"navdata-reading-apt-dat-files",
"navdata-loading-airports",
"navdata-navaids",
"navdata-fixes",
"navdata-pois"

69
src/Navaids/NavDataCache.cxx
View file

@ -26,6 +26,7 @@
#include "NavDataCache.hxx"
// std
#include <cstddef> // for std::size_t
#include <map>
#include <cassert>
#include <stdint.h> // for int64_t
@ -234,6 +235,12 @@ public:
}
};
struct DatFilesGroupInfo {
NavDataCache::DatFileType datFileType; // for instance, DATFILETYPE_APT
PathList paths; // SGPath instances
std::size_t totalSize; // total size of all these files, in bytes
};
class NavDataCache::NavDataCachePrivate
{
public:
@ -333,9 +340,10 @@ public:
}
bool isCachedFileModified(const SGPath& path, bool verbose);
PathList getDatFilesPaths(NavDataCache::DatFileType datFileType) const;
bool areDatFilesModified(NavDataCache::DatFileType datFileType,
const PathList& datFiles, bool verbose);
DatFilesGroupInfo findDatFiles(NavDataCache::DatFileType datFileType)
const;
bool areDatFilesModified(const DatFilesGroupInfo& datFilesGroupInfo,
bool verbose);
void callSqlite(int result, const string& sql)
{
@ -852,7 +860,7 @@ public:
bool transactionAborted;
sqlite3_stmt_ptr beginTransactionStmt, commitTransactionStmt, rollbackTransactionStmt;
PathList aptDatPaths;
DatFilesGroupInfo aptDatFilesInfo;
SGPath metarDatPath, navDatPath, fixDatPath, poiDatPath,
carrierDatPath, airwayDatPath;
@ -1014,17 +1022,21 @@ bool NavDataCache::NavDataCachePrivate::isCachedFileModified(const SGPath& path,
return isModified;
}
// Return the list of $scenery_path/NavData/<type>/*.dat[.gz] files found
// Find the list of $scenery_path/NavData/<type>/*.dat[.gz] files found
// inside scenery paths, plus the default file for the given type (e.g.,
// $FG_ROOT/Airports/apt.dat.gz for the 'apt' type).
PathList NavDataCache::NavDataCachePrivate::getDatFilesPaths(
// Also compute the total size of all these files (in bytes), which is useful
// for progress information.
DatFilesGroupInfo NavDataCache::NavDataCachePrivate::findDatFiles(
NavDataCache::DatFileType datFileType) const
{
PathList result;
DatFilesGroupInfo result;
SGPath visitedPath; // to avoid duplicates and time wasting
const string datFilesSubDir = "NavData/" +
NavDataCache::datTypeStr[datFileType];
const PathList& sceneryPaths = globals->get_unmangled_fg_scenery();
result.datFileType = datFileType;
result.totalSize = 0;
for (PathList::const_iterator dirsIt = sceneryPaths.begin();
dirsIt != sceneryPaths.end(); dirsIt++) {
@ -1051,8 +1063,10 @@ PathList NavDataCache::NavDataCachePrivate::getDatFilesPaths(
filesIt != files.end(); filesIt++) {
const std::string name = filesIt->file();
if (simgear::strutils::ends_with(name, ".dat") ||
simgear::strutils::ends_with(name, ".dat.gz"))
result.push_back(*filesIt);
simgear::strutils::ends_with(name, ".dat.gz")) {
result.paths.push_back(*filesIt);
result.totalSize += filesIt->sizeInBytes();
}
}
}
} // of loop over 'sceneryPaths'
@ -1061,16 +1075,17 @@ PathList NavDataCache::NavDataCachePrivate::getDatFilesPaths(
// now
SGPath defaultDatFile(globals->get_fg_root());
defaultDatFile.append(NavDataCache::defaultDatFile[datFileType]);
if ((result.empty() || result.back() != defaultDatFile) &&
if ((result.paths.empty() || result.paths.back() != defaultDatFile) &&
defaultDatFile.isFile()) {
result.push_back(defaultDatFile);
result.paths.push_back(defaultDatFile);
result.totalSize += defaultDatFile.sizeInBytes();
}
return result;
}
// Compare:
// - the list of dat files given by 'datFiles';
// - the list of dat files given by 'datFilesGroupInfo';
// - the list obtained from the record with key '<type>.dat files' of the
// NavDataCache 'properties' table, where <type> is one of 'apt', 'metar',
// 'fix', 'poi', etc..
@ -1078,12 +1093,15 @@ PathList NavDataCache::NavDataCachePrivate::getDatFilesPaths(
// This comparison is sensitive to the number and order of the files,
// their respective SGPath::realpath() and SGPath::modTime().
bool NavDataCache::NavDataCachePrivate::areDatFilesModified(
NavDataCache::DatFileType datFileType, const PathList& datFiles, bool verbose)
const DatFilesGroupInfo& datFilesGroupInfo,
bool verbose)
{
// 'apt' or 'metar' or 'fix' or...
const string datTypeStr = NavDataCache::datTypeStr[datFileType];
const string datTypeStr =
NavDataCache::datTypeStr[datFilesGroupInfo.datFileType];
const string_list cachedFiles = outer->readOrderedStringListProperty(
datTypeStr + ".dat files", &SGPath::pathListSep);
const PathList& datFiles = datFilesGroupInfo.paths;
PathList::const_iterator datFilesIt = datFiles.begin();
string_list::const_iterator cachedFilesIt = cachedFiles.begin();
// Same logic as in NavDataCachePrivate::isCachedFileModified()
@ -1208,7 +1226,7 @@ NavDataCache::NavDataCache()
Octree::global_spatialOctree =
new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
// Update d->aptDatPaths, d->metarDatPath, d->navDatPath, etc.
// Update d->aptDatFilesInfo, d->metarDatPath, d->navDatPath, etc.
updateListsOfDatFiles();
}
@ -1235,10 +1253,10 @@ NavDataCache* NavDataCache::instance()
void NavDataCache::updateListsOfDatFiles() {
// All $scenery_path/NavData/apt/*.dat[.gz] files found inside scenery
// paths, plus $FG_ROOT/Airports/apt.dat.gz (order matters).
d->aptDatPaths = d->getDatFilesPaths(DATFILETYPE_APT);
d->aptDatFilesInfo = d->findDatFiles(DATFILETYPE_APT);
// Trivial extension to the other types of dat files:
// d->navDatPaths = d->getDatFilesPaths(DATFILETYPE_NAV);
// d->fixDatPaths = d->getDatFilesPaths(DATFILETYPE_FIX);
// d->navDatFilesInfo = d->findDatFiles(DATFILETYPE_NAV);
// d->fixDatFilesInfo = d->findDatFiles(DATFILETYPE_FIX);
// etc.
//
// These ones are still managed the "old" way (no search through scenery
@ -1273,7 +1291,7 @@ bool NavDataCache::isRebuildRequired()
return true;
}
if (d->areDatFilesModified(DATFILETYPE_APT, d->aptDatPaths, true) ||
if (d->areDatFilesModified(d->aptDatFilesInfo, true) ||
d->isCachedFileModified(d->metarDatPath, true) ||
d->isCachedFileModified(d->navDatPath, true) ||
d->isCachedFileModified(d->fixDatPath, true) ||
@ -1341,15 +1359,22 @@ void NavDataCache::doRebuild()
Transaction txn(this);
APTLoader aptLoader;
string_list aptDatFiles;
const PathList aptDatPaths = d->aptDatFilesInfo.paths;
std::size_t bytesReadSoFar = 0;
st.stamp();
for (PathList::const_iterator it = d->aptDatPaths.begin();
it != d->aptDatPaths.end(); it++) {
for (PathList::const_iterator it = aptDatPaths.begin();
it != aptDatPaths.end(); it++) {
aptDatFiles.push_back(it->realpath().utf8Str());
aptLoader.readAptDatFile(*it);
aptLoader.readAptDatFile(*it, bytesReadSoFar,
d->aptDatFilesInfo.totalSize);
bytesReadSoFar += it->sizeInBytes();
stampCacheFile(*it); // this uses the realpath() of the file
}
setRebuildPhaseProgress(REBUILD_UNKNOWN);
SG_LOG(SG_NAVCACHE, SG_DEBUG, "Loading airports");
aptLoader.loadAirports(); // load airport data into the NavCache
// Store the list of apt.dat files we have loaded
writeOrderedStringListProperty(

5
src/Navaids/NavDataCache.hxx
View file

@ -77,7 +77,8 @@ public:
enum RebuildPhase
{
REBUILD_UNKNOWN = 0,
REBUILD_AIRPORTS,
REBUILD_READING_APT_DAT_FILES,
REBUILD_LOADING_AIRPORTS,
REBUILD_NAVAIDS,
REBUILD_FIXES,
REBUILD_POIS,
@ -298,6 +299,8 @@ private:
void commitTransaction();
void abortTransaction();
friend class DatFilesGroupInfo;
enum DatFileType {
DATFILETYPE_APT = 0,
DATFILETYPE_METAR,