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New varint encoding gives a maximum varint length of 9 instead of 10. (CVS 1395)

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FossilOrigin-Name: 61bdb53a363644074d01682fab8220078523676b
This commit is contained in:
drh
2004-05-18 15:57:42 +00:00
parent 10c0fa6a75
commit d8820e80fc
6 changed files with 98 additions and 36 deletions
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24
src/test3.c
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@@ -13,7 +13,7 @@
** is not included in the SQLite library. It is used for automated
** testing of the SQLite library.
**
** $Id: test3.c,v 1.37 2004/05/14 16:50:06 drh Exp $
** $Id: test3.c,v 1.38 2004/05/18 15:57:42 drh Exp $
*/
#include "sqliteInt.h"
#include "pager.h"
@@ -1167,7 +1167,7 @@ static int btree_varint_test(
){
u32 start, mult, count, incr;
u64 in, out;
int n1, n2, i;
int n1, n2, i, j;
unsigned char zBuf[100];
if( argc!=5 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
@@ -1181,22 +1181,32 @@ static int btree_varint_test(
in = start;
in *= mult;
for(i=0; i<count; i++){
char zErr[200];
n1 = sqlite3PutVarint(zBuf, in);
if( n1>9 || n1<1 ){
Tcl_AppendResult(interp, "PutVarint returned value out of range", 0);
sprintf(zErr, "PutVarint returned %d - should be between 1 and 9", n1);
Tcl_AppendResult(interp, zErr, 0);
return TCL_ERROR;
}
n2 = sqlite3GetVarint(zBuf, &out);
if( n1!=n2 ){
Tcl_AppendResult(interp, \
"GetVarint returned value different from PutVarint", 0);
sprintf(zErr, "PutVarint returned %d and GetVarint returned %d", n1, n2);
Tcl_AppendResult(interp, zErr, 0);
return TCL_ERROR;
}
if( in!=out ){
Tcl_AppendResult(interp, \
"Value read is different from value written", 0);
sprintf(zErr, "Wrote 0x%016llx and got back 0x%016llx", in, out);
Tcl_AppendResult(interp, zErr, 0);
return TCL_ERROR;
}
/* In order to get realistic timings, run getVarint 19 more times.
** This is because getVarint is called about 20 times more often
** than putVarint.
*/
for(j=0; j<19; j++){
sqlite3GetVarint(zBuf, &out);
}
in += incr;
}
return TCL_OK;