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Add extension "mmapwarm.c". Provides function sqlite3_mmap_warm(), used to

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"warm up" the memory mapping used by SQLite in mmap mode to access db file
content.

FossilOrigin-Name: d4a30b91f9aad93510baead8c04ee51b82c98763be5a224ed4873298214c963a
This commit is contained in:
dan
2017-09-18 16:28:56 +00:00
parent 2acd24d90c
commit 460f1fa55c
7 changed files with 158 additions and 13 deletions
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34
src/test1.c
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@@ -7415,6 +7415,35 @@ static int SQLITE_TCLAPI test_dbconfig_maindbname_icecube(
}
}
/*
** Usage: sqlite3_mmap_warm DB DBNAME
*/
static int SQLITE_TCLAPI test_mmap_warm(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
extern int getDbPointer(Tcl_Interp*, const char*, sqlite3**);
extern int sqlite3_mmap_warm(sqlite3 *db, const char *);
if( objc!=2 && objc!=3 ){
Tcl_WrongNumArgs(interp, 1, objv, "DB ?DBNAME?");
return TCL_ERROR;
}else{
int rc;
sqlite3 *db;
const char *zDb = 0;
if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
if( objc==3 ){
zDb = Tcl_GetString(objv[2]);
}
rc = sqlite3_mmap_warm(db, zDb);
Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
return TCL_OK;
}
}
/*
** Register commands with the TCL interpreter.
*/
@@ -7684,8 +7713,9 @@ int Sqlitetest1_Init(Tcl_Interp *interp){
{ "sqlite3_snapshot_open_blob", test_snapshot_open_blob, 0 },
{ "sqlite3_snapshot_cmp_blob", test_snapshot_cmp_blob, 0 },
#endif
{ "sqlite3_delete_database", test_delete_database, 0 },
{ "atomic_batch_write", test_atomic_batch_write, 0 },
{ "sqlite3_delete_database", test_delete_database, 0 },
{ "atomic_batch_write", test_atomic_batch_write, 0 },
{ "sqlite3_mmap_warm", test_mmap_warm, 0 },
};
static int bitmask_size = sizeof(Bitmask)*8;
static int longdouble_size = sizeof(LONGDOUBLE_TYPE);