wasCSharpSQLite – Rev 1
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using Pgno = System.UInt32;
namespace Community.CsharpSqlite
{
public partial class Sqlite3
{
/*
** 2001 September 15
**
** The author disclaims copyright to this source code. In place of
** a legal notice, here is a blessing:
**
** May you do good and not evil.
** May you find forgiveness for yourself and forgive others.
** May you share freely, never taking more than you give.
**
*************************************************************************
** This header file defines the interface that the sqlite page cache
** subsystem. The page cache subsystem reads and writes a file a page
** at a time and provides a journal for rollback.
*************************************************************************
** Included in SQLite3 port to C#-SQLite; 2008 Noah B Hart
** C#-SQLite is an independent reimplementation of the SQLite software library
**
** SQLITE_SOURCE_ID: 2011-05-19 13:26:54 ed1da510a239ea767a01dc332b667119fa3c908e
**
*************************************************************************
*/
//#if !_PAGER_H_
//#define _PAGER_H_
/*
** Default maximum size for persistent journal files. A negative
** value means no limit. This value may be overridden using the
** sqlite3PagerJournalSizeLimit() API. See also "PRAGMA journal_size_limit".
*/
#if !SQLITE_DEFAULT_JOURNAL_SIZE_LIMIT
const int SQLITE_DEFAULT_JOURNAL_SIZE_LIMIT = -1;//#define SQLITE_DEFAULT_JOURNAL_SIZE_LIMIT -1
#endif
/*
** The type used to represent a page number. The first page in a file
** is called page 1. 0 is used to represent "not a page".
*/
//typedef u32 Pgno;
/*
** Each open file is managed by a separate instance of the "Pager" structure.
*/
//typedef struct Pager Pager;
/*
** Handle type for pages.
*/
//typedef struct PgHdr DbPage;
/*
** Page number PAGER_MJ_PGNO is never used in an SQLite database (it is
** reserved for working around a windows/posix incompatibility). It is
** used in the journal to signify that the remainder of the journal file
** is devoted to storing a master journal name - there are no more pages to
** roll back. See comments for function writeMasterJournal() in pager.c
** for details.
*/
//#define PAGER_MJ_PGNO(x) ((Pgno)((PENDING_BYTE/((x)->pageSize))+1))
static Pgno PAGER_MJ_PGNO( Pager x )
{
return ( (Pgno)( ( PENDING_BYTE / ( ( x ).pageSize ) ) + 1 ) );
}
/*
** Allowed values for the flags parameter to sqlite3PagerOpen().
**
** NOTE: These values must match the corresponding BTREE_ values in btree.h.
*/
//#define PAGER_OMIT_JOURNAL 0x0001 /* Do not use a rollback journal */
//#define PAGER_NO_READLOCK 0x0002 /* Omit readlocks on readonly files */
//#define PAGER_MEMORY 0x0004 /* In-memory database */
const int PAGER_OMIT_JOURNAL = 0x0001;
const int PAGER_NO_READLOCK = 0x0002;
const int PAGER_MEMORY = 0x0004;
/*
** Valid values for the second argument to sqlite3PagerLockingMode().
*/
//#define PAGER_LOCKINGMODE_QUERY -1
//#define PAGER_LOCKINGMODE_NORMAL 0
//#define PAGER_LOCKINGMODE_EXCLUSIVE 1
static int PAGER_LOCKINGMODE_QUERY = -1;
static int PAGER_LOCKINGMODE_NORMAL = 0;
static int PAGER_LOCKINGMODE_EXCLUSIVE = 1;
/*
** Numeric constants that encode the journalmode.
*/
//#define PAGER_JOURNALMODE_QUERY (-1) /* Query the value of journalmode */
//#define PAGER_JOURNALMODE_DELETE 0 /* Commit by deleting journal file */
//#define PAGER_JOURNALMODE_PERSIST 1 /* Commit by zeroing journal header */
//#define PAGER_JOURNALMODE_OFF 2 /* Journal omitted. */
//#define PAGER_JOURNALMODE_TRUNCATE 3 /* Commit by truncating journal */
//#define PAGER_JOURNALMODE_MEMORY 4 /* In-memory journal file */
//#define PAGER_JOURNALMODE_WAL 5 /* Use write-ahead logging */
const int PAGER_JOURNALMODE_QUERY = -1;
const int PAGER_JOURNALMODE_DELETE = 0;
const int PAGER_JOURNALMODE_PERSIST = 1;
const int PAGER_JOURNALMODE_OFF = 2;
const int PAGER_JOURNALMODE_TRUNCATE = 3;
const int PAGER_JOURNALMODE_MEMORY = 4;
const int PAGER_JOURNALMODE_WAL = 5;
/*
** The remainder of this file contains the declarations of the functions
** that make up the Pager sub-system API. See source code comments for
** a detailed description of each routine.
*/
/* Open and close a Pager connection. */
//int sqlite3PagerOpen(
// sqlite3_vfs*,
// Pager **ppPager,
// const char*,
// int,
// int,
// int,
//// void()(DbPage)
//);
//int sqlite3PagerClose(Pager *pPager);
//int sqlite3PagerReadFileheader(Pager*, int, unsigned char);
/* Functions used to configure a Pager object. */
//void sqlite3PagerSetBusyhandler(Pager*, int()(void ), object );
//int sqlite3PagerSetPagesize(Pager*, u32*, int);
//int sqlite3PagerMaxPageCount(Pager*, int);
//void sqlite3PagerSetCachesize(Pager*, int);
//void sqlite3PagerSetSafetyLevel(Pager*,int,int,int);
//int sqlite3PagerLockingMode(Pager *, int);
//int sqlite3PagerSetJournalMode(Pager *, int);
//int sqlite3PagerGetJournalMode(Pager);
//int sqlite3PagerOkToChangeJournalMode(Pager);
//i64 sqlite3PagerJournalSizeLimit(Pager *, i64);
//sqlite3_backup **sqlite3PagerBackupPtr(Pager);
/* Functions used to obtain and release page references. */
//int sqlite3PagerAcquire(Pager *pPager, Pgno pgno, DbPage **ppPage, int clrFlag);
//#define sqlite3PagerGet(A,B,C) sqlite3PagerAcquire(A,B,C,0)
//DbPage *sqlite3PagerLookup(Pager *pPager, Pgno pgno);
//void sqlite3PagerRef(DbPage);
//void sqlite3PagerUnref(DbPage);
/* Operations on page references. */
//int sqlite3PagerWrite(DbPage);
//void sqlite3PagerDontWrite(DbPage);
//int sqlite3PagerMovepage(Pager*,DbPage*,Pgno,int);
//int sqlite3PagerPageRefcount(DbPage);
//void *sqlite3PagerGetData(DbPage );
//void *sqlite3PagerGetExtra(DbPage );
/* Functions used to manage pager transactions and savepoints. */
//void sqlite3PagerPagecount(Pager*, int);
//int sqlite3PagerBegin(Pager*, int exFlag, int);
//int sqlite3PagerCommitPhaseOne(Pager*,string zMaster, int);
//int sqlite3PagerExclusiveLock(Pager);
//int sqlite3PagerSync(Pager *pPager);
//int sqlite3PagerCommitPhaseTwo(Pager);
//int sqlite3PagerRollback(Pager);
//int sqlite3PagerOpenSavepoint(Pager *pPager, int n);
//int sqlite3PagerSavepoint(Pager *pPager, int op, int iSavepoint);
//int sqlite3PagerSharedLock(Pager *pPager);
//int sqlite3PagerCheckpoint(Pager *pPager, int, int*, int);
//int sqlite3PagerWalSupported(Pager* pPager);
//int sqlite3PagerWalCallback(Pager* pPager);
//int sqlite3PagerOpenWal(Pager* pPager, int* pisOpen);
//int sqlite3PagerCloseWal(Pager* pPager);
/* Functions used to query pager state and configuration. */
//u8 sqlite3PagerIsreadonly(Pager);
//int sqlite3PagerRefcount(Pager);
//int sqlite3PagerMemUsed(Pager);
//string sqlite3PagerFilename(Pager);
//const sqlite3_vfs *sqlite3PagerVfs(Pager);
//sqlite3_file *sqlite3PagerFile(Pager);
//string sqlite3PagerJournalname(Pager);
//int sqlite3PagerNosync(Pager);
//void *sqlite3PagerTempSpace(Pager);
//int sqlite3PagerIsMemdb(Pager);
/* Functions used to truncate the database file. */
//void sqlite3PagerTruncateImage(Pager*,Pgno);
//#if (SQLITE_HAS_CODEC) && !defined(SQLITE_OMIT_WAL)
//void *sqlite3PagerCodec(DbPage );
//#endif
/* Functions to support testing and debugging. */
//#if !NDEBUG || SQLITE_TEST
// Pgno sqlite3PagerPagenumber(DbPage);
// int sqlite3PagerIswriteable(DbPage);
//#endif
//#if SQLITE_TEST
// int *sqlite3PagerStats(Pager);
// void sqlite3PagerRefdump(Pager);
// void disable_simulated_io_errors(void);
// void enable_simulated_io_errors(void);
//#else
//# define disable_simulated_io_errors()
//# define enable_simulated_io_errors()
//#endif
}
}