database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-07-29 08:01:23 +03:00
Code Activity

Further enhance the vfslog extension to record the number of freelist pages

Browse Source 
and the first freelist page in CHNGCTR-READ and CHNGCTR-WRITE records.

FossilOrigin-Name: 08157524ca816a81f3c341097e23982727eaa125
This commit is contained in:
drh
2013-10-18 17:42:35 +00:00
parent 2eebbf699e
commit 06d6efb661
3 changed files with 34 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
ext/misc/vfslog.c
View File

@ -346,6 +346,13 @@ static void vlogSignature(unsigned char *p, int n, char *zCksum){
}
}
/*
** Convert a big-endian 32-bit integer into a native integer
*/
static int bigToNative(const unsigned char *x){
return (x[0]<<24) + (x[1]<<16) + (x[2]<<8) + x[3];
}
/*
** Read data from an vlog-file.
*/
@ -376,9 +383,16 @@ static int vlogRead(
&& iOfst+iAmt>=28
){
unsigned char *x = ((unsigned char*)zBuf)+(24-iOfst);
unsigned iCtr;
iCtr = (x[0]<<24) + (x[1]<<16) + (x[2]<<8) + x[3];
vlogLogPrint(p->pLog, tStart, 0, "CHNGCTR-READ", iCtr, -1, 0, 0);
unsigned iCtr, nFree = -1;
char *zFree = 0;
char zStr[12];
iCtr = bigToNative(x);
if( iOfst+iAmt>=40 ){
zFree = zStr;
sqlite3_snprintf(sizeof(zStr), zStr, "%d", bigToNative(x+8));
nFree = bigToNative(x+12);
}
vlogLogPrint(p->pLog, tStart, 0, "CHNGCTR-READ", iCtr, nFree, zFree, 0);
}
return rc;
}
@ -409,9 +423,16 @@ static int vlogWrite(
&& iOfst+iAmt>=28
){
unsigned char *x = ((unsigned char*)z)+(24-iOfst);
unsigned iCtr;
iCtr = (x[0]<<24) + (x[1]<<16) + (x[2]<<8) + x[3];
vlogLogPrint(p->pLog, tStart, 0, "CHNGCTR-WRITE", iCtr, -1, 0, 0);
unsigned iCtr, nFree = -1;
char *zFree = 0;
char zStr[12];
iCtr = bigToNative(x);
if( iOfst+iAmt>=40 ){
zFree = zStr;
sqlite3_snprintf(sizeof(zStr), zStr, "%d", bigToNative(x+8));
nFree = bigToNative(x+12);
}
vlogLogPrint(p->pLog, tStart, 0, "CHNGCTR-WRITE", iCtr, nFree, zFree, 0);
}
return rc;
}

12
manifest
View File

@ -1,5 +1,5 @@
C In\sthe\svfslog\sextension\sfor\sFILECONTROL\srecords,\sshow\sthe\spragma\sname\sfor\nSQLITE_FCNTL_PRAGMAs\sand\sthe\srequested\ssize\sfor\sSQLITE_FCNTL_SIZE_HINT.
D 2013-10-18T14:37:26.422
C Further\senhance\sthe\svfslog\sextension\sto\srecord\sthe\snumber\sof\sfreelist\spages\nand\sthe\sfirst\sfreelist\spage\sin\sCHNGCTR-READ\sand\sCHNGCTR-WRITE\srecords.
D 2013-10-18T17:42:35.202
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in 0522b53cdc1fcfc18f3a98e0246add129136c654
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@ -116,7 +116,7 @@ F ext/misc/regexp.c af92cdaa5058fcec1451e49becc7ba44dba023dc
F ext/misc/rot13.c 1ac6f95f99b575907b9b09c81a349114cf9be45a
F ext/misc/spellfix.c 5e1d547e9a2aed13897fa91bac924333f62fd2d9
F ext/misc/totype.c 4a167594e791abeed95e0a8db028822b5e8fe512
F ext/misc/vfslog.c f3288d66e699fee093497d449996c69eef1c0354
F ext/misc/vfslog.c b11228f567ddd251706ece5f1bb7bdc218eec825
F ext/misc/vtshim.c babb0dc2bf116029e3e7c9a618b8a1377045303e
F ext/misc/wholenumber.c 784b12543d60702ebdd47da936e278aa03076212
F ext/rtree/README 6315c0d73ebf0ec40dedb5aa0e942bc8b54e3761
@ -1126,7 +1126,7 @@ F tool/vdbe-compress.tcl f12c884766bd14277f4fcedcae07078011717381
F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
F tool/warnings.sh d1a6de74685f360ab718efda6265994b99bbea01
F tool/win/sqlite.vsix 030f3eeaf2cb811a3692ab9c14d021a75ce41fff
P c78be6d786c19073b3a6730dfe3fb1be54f5657a
R 922e3640e2dff0c501dabe2407303992
P f062969548da26850ceeb48d4283f6567f828887
R 5457e72ad1d4f1c29d635ec2528114d5
U drh
Z 20507bcad5bb086518e04051643ef0df
Z e59d2038662ec722e3001c7ec97e56fb

2
manifest.uuid
View File

@ -1 +1 @@
f062969548da26850ceeb48d4283f6567f828887
08157524ca816a81f3c341097e23982727eaa125