/home/cube/sources/osgearth/src/osgEarthDrivers/cache_sqlite3/Sqlite3Cache.cpp File Reference

#include "Sqlite3CacheOptions"
#include <osgEarth/FileUtils>
#include <osgEarth/TaskService>
#include <osgDB/FileNameUtils>
#include <osgDB/FileUtils>
#include <osgDB/ReaderWriter>
#include <OpenThreads/Mutex>
#include <OpenThreads/ScopedLock>
#include <cstring>
#include <fstream>
#include <sqlite3.h>

Include dependency graph for Sqlite3Cache.cpp:

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Classes
struct	AsyncCache
struct	MetadataRecord
struct	MetadataTable
struct	ImageRecord
struct	LayerTable
struct	AsyncPurge
struct	AsyncInsert
struct	AsyncUpdateAccessTime
struct	AsyncUpdateAccessTimePool
struct	ThreadTable
class	Sqlite3Cache
class	Sqlite3CacheFactory
Defines
#define	LC   "[Sqlite3Cache] "
#define	USE_TRANSACTIONS
#define	USE_L2_CACHE
#define	UPDATE_ACCESS_TIMES
#define	UPDATE_ACCESS_TIMES_POOL
#define	MAX_REQUEST_TO_RUN_PURGE   100
#define	PURGE_GENERAL
Typedefs
typedef std::map< std::string, osg::ref_ptr< LayerTable > >	LayerTablesByName
Functions
static sqlite3 *	openDatabase (const std::string &path, bool serialized)

---

Define Documentation

#define LC   "[Sqlite3Cache] "

Definition at line 46 of file Sqlite3Cache.cpp.

#define MAX_REQUEST_TO_RUN_PURGE   100

Definition at line 55 of file Sqlite3Cache.cpp.

#define PURGE_GENERAL

Definition at line 57 of file Sqlite3Cache.cpp.

#define UPDATE_ACCESS_TIMES

Definition at line 53 of file Sqlite3Cache.cpp.

#define UPDATE_ACCESS_TIMES_POOL

Definition at line 54 of file Sqlite3Cache.cpp.

#define USE_L2_CACHE

Definition at line 49 of file Sqlite3Cache.cpp.

#define USE_TRANSACTIONS

Definition at line 48 of file Sqlite3Cache.cpp.

---

Typedef Documentation

typedef std::map<std::string,osg::ref_ptr<LayerTable> > LayerTablesByName

Definition at line 932 of file Sqlite3Cache.cpp.

---

Function Documentation

static sqlite3* openDatabase	(	const std::string &	path,
		bool	serialized
	)		[static]

Definition at line 66 of file Sqlite3Cache.cpp.

{
    //Try to create the path if it doesn't exist
    std::string dirPath = osgDB::getFilePath(path);    

    //If the path doesn't currently exist or we can't create the path, don't cache the file
    if (!osgDB::fileExists(dirPath) && !osgDB::makeDirectory(dirPath))
    {
        OE_WARN << LC << "Couldn't create path " << dirPath << std::endl;
    }

    sqlite3* db = 0L;

    // not sure if SHAREDCACHE is necessary or wise 
    int flags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE;
    flags |= serialized ? SQLITE_OPEN_FULLMUTEX : SQLITE_OPEN_NOMUTEX;

    int rc = sqlite3_open_v2( path.c_str(), &db, flags, 0L );

    if ( rc != 0 )
    {
        OE_WARN << LC << "Failed to open cache \"" << path << "\": " << sqlite3_errmsg(db) << std::endl;
        return 0L;
    }

    // make sure that writes actually finish
    sqlite3_busy_timeout( db, 60000 );

    return db;
}

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