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Ensure that all possible outcomes for walIndexPage() are accounted for by

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callers.

FossilOrigin-Name: 12715c6b234a04627ca27e94bfa8bd456998360a9f0117480e0038f4747818d6
This commit is contained in:
drh
2021-10-27 23:55:30 +00:00
parent 71c3ea7523
commit eaad533e54
3 changed files with 12 additions and 9 deletions
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12
manifest
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@@ -1,5 +1,5 @@
C Avoid\sthe\s1-based\sindexing\son\sthe\sWalHashLoc.aPgno[]\sarray.\s\sMake\sit\s0-indexed\ninstead.
D 2021-10-27T20:23:59.854
C Ensure\sthat\sall\spossible\soutcomes\sfor\swalIndexPage()\sare\saccounted\sfor\sby\ncallers.
D 2021-10-27T23:55:30.606
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -633,7 +633,7 @@ F src/vdbetrace.c fe0bc29ebd4e02c8bc5c1945f1d2e6be5927ec12c06d89b03ef2a4def34bf8
F src/vdbevtab.c f99b275366c5fc5e2d99f734729880994ab9500bdafde7fae3b02d562b9d323c
F src/vtab.c d07cc24dd84b0b51bf05adb187b0d2e6b0cac56cfbc0197995a26d4f8fa5c7e2
F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
F src/wal.c 2fd68f0a2e12486a543016ee47828874863c486b8a090989e70627f556ccde32
F src/wal.c 6ae14d4797f31c67fc2be659d24fbc6e1a6f5f423bdfb5ef831ea171bce42320
F src/wal.h c3aa7825bfa2fe0d85bef2db94655f99870a285778baa36307c0a16da32b226a
F src/walker.c f890a3298418d7cba3b69b8803594fdc484ea241206a8dfa99db6dd36f8cbb3b
F src/where.c ecabef93b0f14442a73eca205fc960428984d75fbdc7d60226b7fc9cac127187
@@ -1929,7 +1929,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P b619e936455f4001b543a9a58dea2ac9ebd598327d6be01130ca6e7e9764ffe6
R 0450e5bea2ea312618d6c5cbc7e1928c
P 28f5f709b4b28ba7f6f56bdd4a9e8c04d0d2df90d13d6df1a589fa4a65163f4d
R fe9d125153f206ef4cb83374e184623d
U drh
Z 2a7a0238c8886bf3fdd3adf1dc184586
Z 4e7264e2dc788c50ad6f39937abcf192

2
manifest.uuid
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@@ -1 +1 @@
28f5f709b4b28ba7f6f56bdd4a9e8c04d0d2df90d13d6df1a589fa4a65163f4d
12715c6b234a04627ca27e94bfa8bd456998360a9f0117480e0038f4747818d6

7
src/wal.c
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@@ -1013,7 +1013,7 @@ static int walHashGet(
rc = walIndexPage(pWal, iHash, &pLoc->aPgno);
assert( rc==SQLITE_OK || iHash>0 );
if( rc==SQLITE_OK ){
if( pLoc->aPgno ){
pLoc->aHash = (volatile ht_slot *)&pLoc->aPgno[HASHTABLE_NPAGE];
if( iHash==0 ){
pLoc->aPgno = &pLoc->aPgno[WALINDEX_HDR_SIZE/sizeof(u32)];
@@ -1021,6 +1021,8 @@ static int walHashGet(
}else{
pLoc->iZero = HASHTABLE_NPAGE_ONE + (iHash-1)*HASHTABLE_NPAGE;
}
}else if( NEVER(rc==SQLITE_OK) ){
rc = SQLITE_ERROR;
}
return rc;
}
@@ -1323,7 +1325,8 @@ static int walIndexRecover(Wal *pWal){
u32 iFirst = 1 + (iPg==0?0:HASHTABLE_NPAGE_ONE+(iPg-1)*HASHTABLE_NPAGE);
u32 nHdr, nHdr32;
rc = walIndexPage(pWal, iPg, (volatile u32**)&aShare);
if( rc ) break;
assert( aShare!=0 || rc!=SQLITE_OK );
if( aShare==0 ) break;
pWal->apWiData[iPg] = aPrivate;
for(iFrame=iFirst; iFrame<=iLast; iFrame++){