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Optimization to sqlite3BeginWriteOperation().

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FossilOrigin-Name: 2173d4c6e3addc75964508f2fc8e42755376b3bc285286fa90df4831a6fa280b
This commit is contained in:
drh 2020-08-16 00:30:44 +00:00
parent 45d827cb6a
commit 1d8f892a31
3 changed files with 18 additions and 15 deletions
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manifest
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@ -1,5 +1,5 @@
C Optimization\sof\sthe\ssqlite3SrcListDelete()\sroutine.
D 2020-08-15T23:48:22.883
C Optimization\sto\ssqlite3BeginWriteOperation().
D 2020-08-16T00:30:44.476
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@ -479,7 +479,7 @@ F src/btmutex.c 8acc2f464ee76324bf13310df5692a262b801808984c1b79defb2503bbafadb6
F src/btree.c 1439fd9b45d4d1883c53752daef42af489adaa1a1508fa39dedbc9c80ea21a2f
F src/btree.h 7af72bbb4863c331c8f6753277ab40ee67d2a2125a63256d5c25489722ec162b
F src/btreeInt.h 83166f6daeb91062b6ae9ee6247b3ad07e40eba58f3c05ba9e8dedad4ab1ea38
F src/build.c a1aa0478c86a05b5bd7e3faa4aad6beeb2660be91261e479891a13ce1389bd7e
F src/build.c a80bc79f0be20185e2005b74e9a23f8abb8fbb3cc54ed769a21865f79d507d90
F src/callback.c d0b853dd413255d2e337b34545e54d888ea02f20da5ad0e63585b389624c4a6c
F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
F src/ctime.c e98518d2d3d4029a13c805e07313fb60c877be56db76e90dd5f3af73085d0ce6
@ -1879,7 +1879,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
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R eb7d2eb9837b02d692f86ab11127e1d5
U drh
Z 740ca2f6298d249a7d9d96f5ff6338d0
Z 4f2f05a1f836926720a2c2ef3cbb9300

2
manifest.uuid
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@ -1 +1 @@
1b4acd1ac4a8d24f8804c6d0770f5b0022f569d51742b6954b26e525f04d38ca
2173d4c6e3addc75964508f2fc8e42755376b3bc285286fa90df4831a6fa280b

19
src/build.c
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@ -53,7 +53,7 @@ void sqlite3TableLock(
u8 isWriteLock, /* True for a write lock */
const char *zName /* Name of the table to be locked */
){
Parse *pToplevel = sqlite3ParseToplevel(pParse);
Parse *pToplevel;
int i;
int nBytes;
TableLock *p;
@ -61,6 +61,7 @@ void sqlite3TableLock(
if( iDb==1 ) return;
if( !sqlite3BtreeSharable(pParse->db->aDb[iDb].pBt) ) return;
pToplevel = sqlite3ParseToplevel(pParse);
for(i=0; i<pToplevel->nTableLock; i++){
p = &pToplevel->aTableLock[i];
if( p->iDb==iDb && p->iTab==iTab ){
@ -4733,13 +4734,11 @@ int sqlite3OpenTempDatabase(Parse *pParse){
** will occur at the end of the top-level VDBE and will be generated
** later, by sqlite3FinishCoding().
*/
void sqlite3CodeVerifySchema(Parse *pParse, int iDb){
Parse *pToplevel = sqlite3ParseToplevel(pParse);
assert( iDb>=0 && iDb<pParse->db->nDb );
assert( pParse->db->aDb[iDb].pBt!=0 || iDb==1 );
static void sqlite3CodeVerifySchemaAtToplevel(Parse *pToplevel, int iDb){
assert( iDb>=0 && iDb<pToplevel->db->nDb );
assert( pToplevel->db->aDb[iDb].pBt!=0 || iDb==1 );
assert( iDb<SQLITE_MAX_ATTACHED+2 );
assert( sqlite3SchemaMutexHeld(pParse->db, iDb, 0) );
assert( sqlite3SchemaMutexHeld(pToplevel->db, iDb, 0) );
if( DbMaskTest(pToplevel->cookieMask, iDb)==0 ){
DbMaskSet(pToplevel->cookieMask, iDb);
if( !OMIT_TEMPDB && iDb==1 ){
@ -4747,6 +4746,10 @@ void sqlite3CodeVerifySchema(Parse *pParse, int iDb){
}
}
}
void sqlite3CodeVerifySchema(Parse *pParse, int iDb){
sqlite3CodeVerifySchemaAtToplevel(sqlite3ParseToplevel(pParse), iDb);
}
/*
** If argument zDb is NULL, then call sqlite3CodeVerifySchema() for each
@ -4778,7 +4781,7 @@ void sqlite3CodeVerifyNamedSchema(Parse *pParse, const char *zDb){
*/
void sqlite3BeginWriteOperation(Parse *pParse, int setStatement, int iDb){
Parse *pToplevel = sqlite3ParseToplevel(pParse);
sqlite3CodeVerifySchema(pParse, iDb);
sqlite3CodeVerifySchemaAtToplevel(pToplevel, iDb);
DbMaskSet(pToplevel->writeMask, iDb);
pToplevel->isMultiWrite |= setStatement;
}