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Performance optimization and slight size reduction in the OP_Transaction

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opcode.

FossilOrigin-Name: 7bee8c195f3fc27aaab13e493ad446a4f19201de3ac064ed6d8a3cbda7c69ee1
This commit is contained in:
drh
2022-04-03 10:42:06 +00:00
parent c2808f39d1
commit 8ee75f7c3a
3 changed files with 11 additions and 10 deletions
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12
manifest
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@@ -1,5 +1,5 @@
C Expand\sthe\sgetVarint32()\smacro\sin\sa\sfew\splaces,\sas\sthe\sC-compiler\sseems\sto\nbe\sable\sto\soptimize\sbetter\swhen\sthat\smacro\sis\sexpanded\smanually. C Performance\soptimization\sand\sslight\ssize\sreduction\sin\sthe\sOP_Transaction\nopcode.
D 2022-04-02T22:47:47.656 D 2022-04-03T10:42:06.846
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -624,7 +624,7 @@ F src/upsert.c 8789047a8f0a601ea42fa0256d1ba3190c13746b6ba940fe2d25643a7e991937
F src/utf.c ee39565f0843775cc2c81135751ddd93eceb91a673ea2c57f61c76f288b041a0 F src/utf.c ee39565f0843775cc2c81135751ddd93eceb91a673ea2c57f61c76f288b041a0
F src/util.c 602fe229f32a96ceccae4f40824129669582096f7c355f53dbac156c9fecef23 F src/util.c 602fe229f32a96ceccae4f40824129669582096f7c355f53dbac156c9fecef23
F src/vacuum.c 6c38ddc52f0619865c91dae9c441d4d48bf3040d7dc1bc5b22da1e45547ed0b3 F src/vacuum.c 6c38ddc52f0619865c91dae9c441d4d48bf3040d7dc1bc5b22da1e45547ed0b3
F src/vdbe.c 52b9afb8df338c7a392332ecfe71c748817b72abfcc1bb90c61d10264aa6db53 F src/vdbe.c 17c49fe3d853ca458dbf681ea462f8095b4cab86beaca57be3483f8aa0394ca4
F src/vdbe.h a1d0e3b934e835e73edd146f2e7c4eadb711b5c9875c18159a57483fd78e550e F src/vdbe.h a1d0e3b934e835e73edd146f2e7c4eadb711b5c9875c18159a57483fd78e550e
F src/vdbeInt.h 88c11169ac35488764e6275017610ddbaaa0e51acd260ea61638f9ccce578d7c F src/vdbeInt.h 88c11169ac35488764e6275017610ddbaaa0e51acd260ea61638f9ccce578d7c
F src/vdbeapi.c 5c498998c99667f16cac2519f2fa439fe46acf99a332b0caa73637fc2ab35c22 F src/vdbeapi.c 5c498998c99667f16cac2519f2fa439fe46acf99a332b0caa73637fc2ab35c22
@@ -1945,8 +1945,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P 8a3a3486358d076c34e515ac92663a04f0c7ff10f405094cb5b6ada0d5f05cdc P cd4fe34b98bf5ce26f3596c717edb73932f3b46ad6e9b4934d06b7b3c176a0d6
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U drh U drh
Z b06751a34dfdacfa9d4b7d6e9de9abea Z 9618a426f045ebdd433022eacdc71e54
# Remove this line to create a well-formed Fossil manifest. # Remove this line to create a well-formed Fossil manifest.

2
manifest.uuid
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@@ -1 +1 @@
cd4fe34b98bf5ce26f3596c717edb73932f3b46ad6e9b4934d06b7b3c176a0d6 7bee8c195f3fc27aaab13e493ad446a4f19201de3ac064ed6d8a3cbda7c69ee1

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src/vdbe.c
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@@ -3754,6 +3754,7 @@ case OP_AutoCommit: {
*/ */
case OP_Transaction: { case OP_Transaction: {
Btree *pBt; Btree *pBt;
Db *pDb;
int iMeta = 0; int iMeta = 0;
assert( p->bIsReader ); assert( p->bIsReader );
@@ -3773,7 +3774,8 @@ case OP_Transaction: {
} }
goto abort_due_to_error; goto abort_due_to_error;
} }
pBt = db->aDb[pOp->p1].pBt; pDb = &db->aDb[pOp->p1];
pBt = pDb->pBt;
if( pBt ){ if( pBt ){
rc = sqlite3BtreeBeginTrans(pBt, pOp->p2, &iMeta); rc = sqlite3BtreeBeginTrans(pBt, pOp->p2, &iMeta);
@@ -3814,8 +3816,7 @@ case OP_Transaction: {
assert( pOp->p5==0 || pOp->p4type==P4_INT32 ); assert( pOp->p5==0 || pOp->p4type==P4_INT32 );
if( rc==SQLITE_OK if( rc==SQLITE_OK
&& pOp->p5 && pOp->p5
&& (iMeta!=pOp->p3 && (iMeta!=pOp->p3 || pDb->pSchema->iGeneration!=pOp->p4.i)
|| db->aDb[pOp->p1].pSchema->iGeneration!=pOp->p4.i)
){ ){
/* /*
** IMPLEMENTATION-OF: R-03189-51135 As each SQL statement runs, the schema ** IMPLEMENTATION-OF: R-03189-51135 As each SQL statement runs, the schema