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Move the 'busy-callback' logic to the pager layer. (CVS 1527)

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FossilOrigin-Name: ff70b6d2b60c143e3ada0606ceff97571998c7e3
This commit is contained in:
danielk1977
2004-06-04 06:22:00 +00:00
parent 13adf8a071
commit 24162fe668
12 changed files with 140 additions and 111 deletions
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20
src/sqliteInt.h
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@@ -11,7 +11,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.267 2004/06/02 00:41:09 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.268 2004/06/04 06:22:02 danielk1977 Exp $
*/
#include "config.h"
#include "sqlite3.h"
@@ -264,6 +264,7 @@ typedef struct AuthContext AuthContext;
typedef struct KeyClass KeyClass;
typedef struct CollSeq CollSeq;
typedef struct KeyInfo KeyInfo;
typedef struct BusyHandler BusyHandler;
/*
@@ -326,6 +327,20 @@ struct Db {
#define TEXT_Utf16be 3
#define TEXT_Utf16 (SQLITE_BIGENDIAN?TEXT_Utf16be:TEXT_Utf16le)
/*
** An instance of the following structure is used to store the busy-handler
** callback for a given sqlite handle.
**
** The sqlite.busyHandler member of the sqlite struct contains the busy
** callback for the database handle. Each pager opened via the sqlite
** handle is passed a pointer to sqlite.busyHandler. The busy-handler
** callback is currently invoked only from within pager.c.
*/
struct BusyHandler {
int (*xFunc)(void *,const char*,int); /* The busy callback */
void *pArg; /* First arg to busy callback */
};
/*
** Each database is an instance of the following structure.
**
@@ -369,8 +384,7 @@ struct sqlite {
int next_cookie; /* Next value of aDb[0].schema_cookie */
int cache_size; /* Number of pages to use in the cache */
int nTable; /* Number of tables in the database */
void *pBusyArg; /* 1st Argument to the busy callback */
int (*xBusyCallback)(void *,const char*,int); /* The busy callback */
BusyHandler busyHandler; /* Busy callback */
void *pCommitArg; /* Argument to xCommitCallback() */
int (*xCommitCallback)(void*);/* Invoked at every commit. */
Hash aFunc; /* All functions that can be in SQL exprs */