Move bundled copy of sqlite one level deeper to better separate it...

third_party/sqlite/src/pager.h

Index: third_party/sqlite/src/pager.h
===================================================================
--- third_party/sqlite/src/pager.h	(revision 56608)
+++ third_party/sqlite/src/pager.h	(working copy)
@@ -1,169 +0,0 @@
-/*
-** 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.
-**
-** @(#) $Id: pager.h,v 1.104 2009/07/24 19:01:19 drh Exp $
-*/
-
-#ifndef _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".
-*/
-#ifndef SQLITE_DEFAULT_JOURNAL_SIZE_LIMIT
-  #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))
-
-/*
-** 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 */
-
-/*
-** Valid values for the second argument to sqlite3PagerLockingMode().
-*/
-#define PAGER_LOCKINGMODE_QUERY      -1
-#define PAGER_LOCKINGMODE_NORMAL      0
-#define PAGER_LOCKINGMODE_EXCLUSIVE   1
-
-/*
-** Valid values for the second argument to sqlite3PagerJournalMode().
-*/
-#define PAGER_JOURNALMODE_QUERY      -1
-#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 */
-
-/*
-** 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 *), void *);
-int sqlite3PagerSetPagesize(Pager*, u16*, int);
-int sqlite3PagerMaxPageCount(Pager*, int);
-void sqlite3PagerSetCachesize(Pager*, int);
-void sqlite3PagerSetSafetyLevel(Pager*,int,int);
-int sqlite3PagerLockingMode(Pager *, int);
-int sqlite3PagerJournalMode(Pager *, int);
-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. */
-int sqlite3PagerPagecount(Pager*, int*);
-int sqlite3PagerBegin(Pager*, int exFlag, int);
-int sqlite3PagerCommitPhaseOne(Pager*,const char *zMaster, int);
-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);
-
-/* Functions used to query pager state and configuration. */
-u8 sqlite3PagerIsreadonly(Pager*);
-int sqlite3PagerRefcount(Pager*);
-const char *sqlite3PagerFilename(Pager*);
-const sqlite3_vfs *sqlite3PagerVfs(Pager*);
-sqlite3_file *sqlite3PagerFile(Pager*);
-const char *sqlite3PagerJournalname(Pager*);
-int sqlite3PagerNosync(Pager*);
-/* This function is for preload-cache.patch for Chromium: */
-int sqlite3PagerLoadall(Pager*);
-void *sqlite3PagerTempSpace(Pager*);
-int sqlite3PagerIsMemdb(Pager*);
-
-/* Functions used to truncate the database file. */
-void sqlite3PagerTruncateImage(Pager*,Pgno);
-
-/* Functions to support testing and debugging. */
-#if !defined(NDEBUG) || defined(SQLITE_TEST)
-  Pgno sqlite3PagerPagenumber(DbPage*);
-  int sqlite3PagerIswriteable(DbPage*);
-#endif
-#ifdef 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
-
-#endif /* _PAGER_H_ */