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Replaced gdbm with metakit. Involves a new simgear version and a new database

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format for the airports in the base package.
This commit is contained in:
curt 2000-05-27 05:54:02 +00:00
parent e12e81dd23
commit d4d10fad6b
12 changed files with 91 additions and 100 deletions
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8
Thanks
View file

@ -375,6 +375,14 @@ Ed Williams <Ed_Williams@compuserve.com>
http://www.best.com/~williams/index.html
Jean-Claude Wippler <jcw@equi4.com>
Author of MetaKit - a portable, embeddible database with a portable
data file format. This software is not GPL'd but the author is kindly
allowing us to bundle MetaKit with our code. MetaKit has a liberal
X/MIT-style license. Please see the following URL for more info:
http://www.equi4.com/metakit
WoodSoup Project http://www.woodsoup.org
Provided computing resources and services so that the Flight Gear
project could have real home. This includes, web services,

3
docs-mini/README.JSBsim
View file

@ -22,8 +22,7 @@ Currently, for JSBSim only the X-15 is available, and possibly the C-172.
Here is an example command line used to start up FlightGear using JSBSim as
the FDM:
fgfs --fdm=jsb --aircraft=X15 --units-feet --altitude=60000 --uBody=2000 --w
Body=120
fgfs --fdm=jsb --aircraft=X15 --units-feet --altitude=60000 --uBody=2000 --wBody=120
[Note: uBody is the forward velocity of the aircraft, wBody is the downward
velocity - from the aircraft point of view. This essentially means that the

2
src/Airports/Makefile.am
View file

@ -8,6 +8,6 @@ libAirports_a_SOURCES = \
buildsimple_SOURCES = buildsimple.cxx
buildsimple_LDADD = libAirports.a -lsgdebug -lsgmisc -lgdbm -lz
buildsimple_LDADD = libAirports.a -lsgdebug -lsgmisc -lmk4 -lz
INCLUDES += -I$(top_builddir) -I$(top_builddir)/src

6
src/Airports/buildsimple.cxx
View file

@ -8,8 +8,12 @@ int main( int argc, char **argv ) {
if ( argc == 3 ) {
airports.load( argv[1] );
airports.dump_gdbm( argv[2] );
airports.dump_mk4( argv[2] );
} else {
cout << "usage: " << argv[0] << " <in> <out>" << endl;
}
// FGAirports airport_db( argv[2] );
// airport_db.search( "KANEZZZ", &a );
}

130
src/Airports/simple.cxx
View file

@ -28,14 +28,14 @@
# include <config.h>
#endif
#include <sys/types.h> // for gdbm open flags
#include <sys/stat.h> // for gdbm open flags
// #include <sys/types.h> // for gdbm open flags
// #include <sys/stat.h> // for gdbm open flags
#ifdef HAVE_GDBM
# include <gdbm.h>
#else
# include <simgear/gdbm/gdbm.h>
#endif
// #ifdef HAVE_GDBM
// # include <gdbm.h>
// #else
// # include <simgear/gdbm/gdbm.h>
// #endif
#include <simgear/compiler.h>
@ -53,13 +53,14 @@
FG_USING_NAMESPACE(std);
FGAirports::FGAirports( const string& file ) {
dbf = gdbm_open( (char *)file.c_str(), 0, GDBM_READER, 0, NULL );
if ( dbf == NULL ) {
cout << "Error opening " << file << endl;
exit(-1);
} else {
cout << "successfully opened " << file << endl;
}
// open the specified database readonly
storage = new c4_Storage( file.c_str(), false );
// need to do something about error handling here!
vAirport = new c4_View;
*vAirport =
storage->GetAs("airport[ID:S,Longitude:F,Latitude:F,Elevation:F]");
}
@ -67,31 +68,24 @@ FGAirports::FGAirports( const string& file ) {
bool
FGAirports::search( const string& id, FGAirport* a ) const
{
FGAirport *tmp;
datum content;
datum key;
c4_StringProp pID ("ID");
c4_FloatProp pLon ("Longitude");
c4_FloatProp pLat ("Latitude");
c4_FloatProp pElev ("Elevation");
key.dptr = (char *)id.c_str();
key.dsize = id.length();
int idx = vAirport->Find(pID[id.c_str()]);
cout << "idx = " << idx << endl;
content = gdbm_fetch( dbf, key );
cout << "gdbm_fetch() finished" << endl;
if ( content.dptr != NULL ) {
tmp = (FGAirport *)content.dptr;
// a->id = tmp->id;
a->longitude = tmp->longitude;
a->latitude = tmp->latitude;
a->elevation = tmp->elevation;
free( content.dptr );
} else {
if ( idx == -1 ) {
return false;
}
c4_RowRef r = vAirport->GetAt(idx);
a->longitude = (double) pLon(r);
a->latitude = (double) pLat(r);
a->elevation = (double) pElev(r);
return true;
}
@ -99,27 +93,15 @@ FGAirports::search( const string& id, FGAirport* a ) const
FGAirport
FGAirports::search( const string& id ) const
{
FGAirport a, *tmp;
datum content;
datum key;
key.dptr = (char *)id.c_str();
key.dsize = id.length();
content = gdbm_fetch( dbf, key );
if ( content.dptr != NULL ) {
tmp = (FGAirport *)content.dptr;
a = *tmp;
}
FGAirport a;
search( id, &a );
return a;
}
// Destructor
FGAirports::~FGAirports( void ) {
gdbm_close( dbf );
// gdbm_close( dbf );
}
@ -177,44 +159,40 @@ int FGAirportsUtil::load( const string& file ) {
// save the data in gdbm format
bool FGAirportsUtil::dump_gdbm( const string& file ) {
bool FGAirportsUtil::dump_mk4( const string& file ) {
GDBM_FILE dbf;
// open database for writing
c4_Storage storage( file.c_str(), true );
#if defined( MACOS ) || defined( _MSC_VER )
dbf = gdbm_open( (char *)file.c_str(), 0, GDBM_NEWDB | GDBM_FAST,
NULL, NULL );
#else
dbf = gdbm_open( (char *)file.c_str(), 0, GDBM_NEWDB | GDBM_FAST,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH,
NULL );
#endif
// need to do something about error handling here!
if ( dbf == NULL ) {
cout << "Error opening " << file << endl;
exit(-1);
} else {
cout << "successfully opened " << file << endl;
}
// define the properties
c4_StringProp pID ("ID");
c4_FloatProp pLon ("Longitude");
c4_FloatProp pLat ("Latitude");
c4_FloatProp pElev ("Elevation");
// Start with an empty view of the proper structure.
c4_View vAirport =
storage.GetAs("airport[ID:S,Longitude:F,Latitude:F,Elevation:F]");
c4_Row row;
iterator current = airports.begin();
const_iterator end = airports.end();
while ( current != end ) {
datum key;
key.dptr = (char *)current->id.c_str();
key.dsize = current->id.length();
datum content;
FGAirport tmp = *current;
content.dptr = (char *)(& tmp);
content.dsize = sizeof( *current );
gdbm_store( dbf, key, content, GDBM_REPLACE );
// add each airport record
pID (row) = current->id.c_str();
pLon (row) = current->longitude;
pLat (row) = current->latitude;
pElev (row) = current->elevation;
vAirport.Add(row);
++current;
}
gdbm_close( dbf );
// commit our changes
storage.Commit();
return true;
}

26
src/Airports/simple.hxx
View file

@ -23,8 +23,8 @@
// $Id$
#ifndef _AIRPORTS_HXX
#define _AIRPORTS_HXX
#ifndef _SIMPLE_HXX
#define _SIMPLE_HXX
#ifndef __cplusplus
@ -36,12 +36,6 @@
# include <config.h>
#endif
#ifdef HAVE_GDBM
# include <gdbm.h>
#else
# include <simgear/gdbm/gdbm.h>
#endif
#include <simgear/compiler.h>
#ifdef FG_HAVE_STD_INCLUDES
@ -57,6 +51,11 @@
#include STL_STRING
#include <set>
#define NDEBUG // she don't work without it.
#include <mk4.h>
#include <mk4str.h>
#undef NDEBUG
FG_USING_STD(string);
FG_USING_STD(set);
@ -99,7 +98,8 @@ class FGAirports {
private:
GDBM_FILE dbf;
c4_Storage *storage;
c4_View *vAirport;
public:
@ -112,7 +112,7 @@ public:
// search for the specified id.
// Returns true if successful, otherwise returns false.
// On success, airport data is returned thru "airport" pointer.
// "airport" is not changed if "id" is not found.
// "airport" is not changed if "apt" is not found.
bool search( const string& id, FGAirport* airport ) const;
FGAirport search( const string& id ) const;
};
@ -142,8 +142,8 @@ public:
// load the data
int load( const string& file );
// save the data in gdbm format
bool dump_gdbm( const string& file );
// save the data in metakit format
bool dump_mk4( const string& file );
// search for the specified id.
// Returns true if successful, otherwise returns false.
@ -154,6 +154,6 @@ public:
};
#endif /* _AIRPORTS_HXX */
#endif // _SIMPLE_HXX

2
src/Autopilot/auto_gui.cxx
View file

@ -595,7 +595,7 @@ void TgtAptDialog_OK (puObject *)
FGPath path( current_options.get_fg_root() );
path.append( "Airports" );
path.append( "simple.gdbm" );
path.append( "simple.mk4" );
FGAirports airports( path.c_str() );
FGAirport a;

3
src/GUI/gui.cxx
View file

@ -1034,8 +1034,9 @@ void AptDialog_OK (puObject *)
{
FGPath path( current_options.get_fg_root() );
path.append( "Airports" );
path.append( "simple.gdbm" );
path.append( "simple.mk4" );
FGAirports airports( path.c_str() );
FGAirport a;
FGTime *t = FGTime::cur_time_params;

2
src/Main/Makefile.am
View file

@ -70,7 +70,7 @@ fgfs_LDADD = \
$(SERIAL_LIBS) \
-lsgscreen -lsgmath -lsgbucket -lsgdebug -lsgmagvar -lsgmisc \
-lplibpu -lplibfnt -lplibssg -lplibsg \
-lgdbm -lz \
-lmk4 -lz \
$(opengl_LIBS) \
$(audio_LIBS)

2
src/Main/fg_init.cxx
View file

@ -146,7 +146,7 @@ bool fgInitPosition( void ) {
FGPath path( current_options.get_fg_root() );
path.append( "Airports" );
path.append( "simple.gdbm" );
path.append( "simple.mk4" );
FGAirports airports( path.c_str() );
FGAirport a;

3
src/Time/fg_timer.cxx
View file

@ -103,6 +103,7 @@ int fgGetTimeInterval( void ) {
static FGTimeStamp last;
FGTimeStamp current;
if ( ! inited ) {
inited = 1;
last.stamp();
@ -113,7 +114,7 @@ int fgGetTimeInterval( void ) {
last = current;
}
return(interval);
return interval;
}

2
src/Time/timestamp.hxx
View file

@ -154,7 +154,7 @@ inline void FGTimeStamp::stamp() {
#endif
}
// difference between time stamps in microseconds (usec)
// increment the time stamp by the number of microseconds (usec)
inline FGTimeStamp operator + (const FGTimeStamp& t, const long& m) {
#ifdef WIN32
return FGTimeStamp( 0, t.usec + m );