memjournal.c File Reference

Go to the source code of this file.

Classes
struct	FileChunk
struct	FilePoint
struct	MemJournal
Defines
#define	JOURNAL_CHUNKSIZE   1024
#define	MIN(x, y)   ((x)<(y)?(x):(y))
Typedefs
typedef struct MemJournal	MemJournal
typedef struct FilePoint	FilePoint
typedef struct FileChunk	FileChunk
Functions
static int	memjrnlRead (sqlite3_file *pJfd, void *zBuf, int iAmt, sqlite_int64 iOfst)
static int	memjrnlWrite (sqlite3_file *pJfd, const void *zBuf, int iAmt, sqlite_int64 iOfst)
static int	memjrnlTruncate (sqlite3_file *pJfd, sqlite_int64 size)
static int	memjrnlClose (sqlite3_file *pJfd)
static int	memjrnlSync (sqlite3_file *pJfd, int flags)
static int	memjrnlFileSize (sqlite3_file *pJfd, sqlite_int64 *pSize)
void	sqlite3MemJournalOpen (sqlite3_file *pJfd)
int	sqlite3IsMemJournal (sqlite3_file *pJfd)
int	sqlite3MemJournalSize ()
Variables
static struct sqlite3_io_methods	MemJournalMethods

---

Define Documentation

#define JOURNAL_CHUNKSIZE   1024

Definition at line 29 of file memjournal.c.

Referenced by memjrnlRead(), and memjrnlWrite().

#define MIN	(	x,
		y		)	((x)<(y)?(x):(y))

Definition at line 34 of file memjournal.c.

Referenced by g_ptr_array_cmp(), memjrnlRead(), memjrnlWrite(), and time_range_union().

---

Typedef Documentation

typedef struct FileChunk FileChunk

Definition at line 24 of file memjournal.c.

typedef struct FilePoint FilePoint

Definition at line 23 of file memjournal.c.

typedef struct MemJournal MemJournal

Definition at line 22 of file memjournal.c.

---

Function Documentation

static int memjrnlClose

(

sqlite3_file *

pJfd

)

[static]

Definition at line 178 of file memjournal.c.

References memjrnlTruncate(), and SQLITE_OK.

static int memjrnlFileSize	(	sqlite3_file *	pJfd,
		sqlite_int64 *	pSize
	)			[static]

Definition at line 194 of file memjournal.c.

References MemJournal::endpoint, FilePoint::iOffset, and SQLITE_OK.

static int memjrnlRead	(	sqlite3_file *	pJfd,
		void *	zBuf,
		int	iAmt,
		sqlite_int64	iOfst
	)			[static]

Definition at line 68 of file memjournal.c.

References FilePoint::iOffset, JOURNAL_CHUNKSIZE, MIN, FilePoint::pChunk, MemJournal::pFirst, FileChunk::pNext, MemJournal::readpoint, SQLITE_OK, and FileChunk::zChunk.

static int memjrnlSync	(	sqlite3_file *	pJfd,
		int	flags
	)			[static]

Definition at line 187 of file memjournal.c.

References SQLITE_OK.

static int memjrnlTruncate	(	sqlite3_file *	pJfd,
		sqlite_int64	size
	)			[static]

Definition at line 161 of file memjournal.c.

References MemJournal::pFirst, FileChunk::pNext, sqlite3_free(), sqlite3MemJournalOpen(), and SQLITE_OK.

Referenced by memjrnlClose().

static int memjrnlWrite	(	sqlite3_file *	pJfd,
		const void *	zBuf,
		int	iAmt,
		sqlite_int64	iOfst
	)			[static]

Definition at line 112 of file memjournal.c.

References MemJournal::endpoint, FilePoint::iOffset, JOURNAL_CHUNKSIZE, MIN, FilePoint::pChunk, MemJournal::pFirst, FileChunk::pNext, sqlite3_malloc(), SQLITE_IOERR_NOMEM, SQLITE_OK, and FileChunk::zChunk.

int sqlite3IsMemJournal

(

sqlite3_file *

pJfd

)

Definition at line 232 of file memjournal.c.

References sqlite3_file::pMethods.

Referenced by pager_end_transaction(), and sqlite3PagerStmtCommit().

void sqlite3MemJournalOpen

(

sqlite3_file *

pJfd

)

Definition at line 222 of file memjournal.c.

References MemJournal::pMethod, and sqlite3MemJournalSize().

Referenced by memjrnlTruncate(), pager_open_journal(), and pagerStmtBegin().

int sqlite3MemJournalSize

(

)

Definition at line 240 of file memjournal.c.

Referenced by sqlite3MemJournalOpen(), and sqlite3PagerOpen().

---

Variable Documentation

struct sqlite3_io_methods MemJournalMethods [static]

Initial value:

 {
  1,                
  memjrnlClose,     
  memjrnlRead,      
  memjrnlWrite,     
  memjrnlTruncate,  
  memjrnlSync,      
  memjrnlFileSize,  
  0,                
  0,                
  0,                
  0,                
  0,                
  0                 
}

Definition at line 203 of file memjournal.c.