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Overview
| Comment: | Another fix to the hash signature algorithm in vfslog.c. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 34212aa8c405c4ff3f8045ec0cf2a860 |
| User & Date: | drh 2013-10-10 13:41:04 |
Context
|
2013-10-10
| ||
| 15:04 | Enhancements to the vfslog.c module to show all change-counter changes and to show the hostname and pid of the process that creates each log file. check-in: af7abebe user: drh tags: trunk | |
| 13:41 | Another fix to the hash signature algorithm in vfslog.c. check-in: 34212aa8 user: drh tags: trunk | |
| 13:38 | Fix the hash signature algorithm in vfslog.c. Add a utility program to show the hash signatures for every page of a database file. check-in: eaf4de13 user: drh tags: trunk | |
Changes
Changes to ext/misc/vfslog.c.
323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 |
pI = (unsigned int*)p;
for(i=0; i<n-7; i+=8){
s0 += pI[0] + s1;
s1 += pI[1] + s0;
pI += 2;
}
for(i=0; i<8; i++) sqlite3_snprintf(3, zCksum+i*2, "%02x", p[i]);
sqlite3_snprintf(18, zCksum+i*2, "-%08x08x", s0, s1);
}
}
/*
** Read data from an vlog-file.
*/
static int vlogRead(
|
| |
323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 |
pI = (unsigned int*)p;
for(i=0; i<n-7; i+=8){
s0 += pI[0] + s1;
s1 += pI[1] + s0;
pI += 2;
}
for(i=0; i<8; i++) sqlite3_snprintf(3, zCksum+i*2, "%02x", p[i]);
sqlite3_snprintf(18, zCksum+i*2, "-%08x%08x", s0, s1);
}
}
/*
** Read data from an vlog-file.
*/
static int vlogRead(
|
Changes to tool/pagesig.c.
38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 |
pI = (unsigned int*)p;
for(i=0; i<n-7; i+=8){
s0 += pI[0] + s1;
s1 += pI[1] + s0;
pI += 2;
}
for(i=0; i<8; i++) sprintf(zCksum+i*2, "%02x", p[i]);
sprintf(zCksum+i*2, "-%08x08x", s0, s1);
}
}
/*
** Open a file. Find its page size. Read each page, and compute and
** display the page signature.
*/
|
| |
38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 |
pI = (unsigned int*)p;
for(i=0; i<n-7; i+=8){
s0 += pI[0] + s1;
s1 += pI[1] + s0;
pI += 2;
}
for(i=0; i<8; i++) sprintf(zCksum+i*2, "%02x", p[i]);
sprintf(zCksum+i*2, "-%08x%08x", s0, s1);
}
}
/*
** Open a file. Find its page size. Read each page, and compute and
** display the page signature.
*/
|