From: drh <> Date: Mon, 9 Aug 2021 18:17:26 +0000 (+0000) Subject: Merge recent trunk enhancements into the reuse-schema branch. X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fd89e834b8f68c2ea87877f3b4a750a48c415cf8;p=thirdparty%2Fsqlite.git Merge recent trunk enhancements into the reuse-schema branch. FossilOrigin-Name: c8d1f17fde280acd3e98772d947a5b1e698b08d25b23bcd0731ae2d18cfbddcf --- fd89e834b8f68c2ea87877f3b4a750a48c415cf8 diff --cc manifest index 3edd007805,179c9e2568..0d262ad1a2 --- a/manifest +++ b/manifest @@@ -1,5 -1,5 +1,5 @@@ -C Ensure\sthat\sthe\spcache1\scache\ssize\sdoes\snot\sget\sso\sbig\sthat\sit\soverflows\nthe\sinteger\sthat\sis\skeeping\strack\sof\sthe\scache\ssize. -D 2021-08-09T18:07:06.575 +C Merge\srecent\strunk\senhancements\sinto\sthe\sreuse-schema\sbranch. - D 2021-08-03T16:11:59.029 ++D 2021-08-09T18:17:26.144 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724 @@@ -479,9 -478,9 +479,9 @@@ F spec.template 86a4a43b99ebb3e75e6b9a7 F sqlite.pc.in 42b7bf0d02e08b9e77734a47798d1a55a9e0716b F sqlite3.1 fc7ad8990fc8409983309bb80de8c811a7506786 F sqlite3.pc.in 48fed132e7cb71ab676105d2a4dc77127d8c1f3a - 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P 0e968f9de3b706fedb675d058ed713a9e639c46d1482dec98c3449567242501e 8b781dcaf68e0cf12a844708c82eee00193e340195cbca915d077e4846983bf3 - R 7eccf6c733924e615151419c0de9017b -P 7929dc2f6f304b077c174d41711b49a24120adeb0b29cb6acb4d6a40852d7e00 -R 5ed20c4f6f3dd0873a45a27ab6ba0f51 ++P d71adc3fd85cfc5902b7146101d030ab2fbe932ed05848a407a7422ddeeb4c43 bf9d70fc2fde06a3f132270a26d4abe321687169066aff26ad9e92757c7f9ee4 ++R 69b8fa43accc454cc462f6123d0cbffd U drh - Z 0313cb80a016f3c3414f00738038a944 -Z c3f298e00599b50c24893f0a3ffdacea ++Z 6f252d3e5e8964418a93d64c78ab4e77 diff --cc manifest.uuid index 846a38634a,5e0dd095a8..e9a7e57fbd --- a/manifest.uuid +++ b/manifest.uuid @@@ -1,1 -1,1 +1,1 @@@ - d71adc3fd85cfc5902b7146101d030ab2fbe932ed05848a407a7422ddeeb4c43 -bf9d70fc2fde06a3f132270a26d4abe321687169066aff26ad9e92757c7f9ee4 ++c8d1f17fde280acd3e98772d947a5b1e698b08d25b23bcd0731ae2d18cfbddcf diff --cc src/callback.c index dc450bc60a,421cef2814..ec9f75571e --- a/src/callback.c +++ b/src/callback.c @@@ -16,63 -16,6 +16,63 @@@ #include "sqliteInt.h" +/* +** Connections opened with the SQLITE_OPEN_SHARED_SCHEMA flag specified +** may use SchemaPool objects for any database that is not the temp db +** (iDb==1). For such databases (type "struct Db") there are three states +** the Schema/SchemaPool object may be in. +** +** 1) pSPool==0, pSchema points to an empty object allocated by +** sqlite3_malloc(). DB_SchemaLoaded flag is clear. +** +** 2) pSPool!=0, pSchema points to a populated object owned by the +** SchemaPool. DB_SchemaLoaded flag is set. +** +** 3) pSPool!=0, pSchema points to the SchemaPool's static object +** (SchemaPool.sSchema). +*/ +struct SchemaPool { + int nRef; /* Number of pointers to this object */ + int nDelete; /* Schema objects deleted by ReleaseAll() */ + u64 cksum; /* Checksum for this Schema contents */ + Schema *pSchema; /* Linked list of Schema objects */ + Schema sSchema; /* The single dummy schema object */ + SchemaPool *pNext; /* Next element in schemaPoolList */ +}; + +#ifdef SQLITE_ENABLE_SHARED_SCHEMA +#ifdef SQLITE_DEBUG +static void assert_schema_state_ok(sqlite3 *db){ - if( IsSharedSchema(db) && db->magic!=SQLITE_MAGIC_ZOMBIE ){ ++ if( IsSharedSchema(db) && db->eOpenState!=SQLITE_STATE_ZOMBIE ){ + int i; + for(i=0; inDb; i++){ + if( i!=1 ){ + Db *pDb = &db->aDb[i]; + Btree *pBt = pDb->pBt; + if( pBt==0 ) continue; + assert( sqlite3BtreeSchema(pBt, 0, 0)==0 ); + assert( pDb->pSchema ); + if( pDb->pSPool ){ + if( DbHasProperty(db, i, DB_SchemaLoaded)==0 ){ + assert( pDb->pSchema->tblHash.count==0 ); + assert( pDb->pSchema==&pDb->pSPool->sSchema ); + }else{ + assert( pDb->pSchema!=&pDb->pSPool->sSchema ); + } + }else{ + assert( DbHasProperty(db, i, DB_SchemaLoaded)==0 ); + assert( pDb->pSchema->tblHash.count==0 ); + assert( pDb->pSchema!=&pDb->pSPool->sSchema ); + } + } + } + } +} +#else +# define assert_schema_state_ok(x) +#endif +#endif /* ifdef SQLITE_ENABLE_SHARED_SCHEMA */ + /* ** Invoke the 'collation needed' callback to request a collation sequence ** in the encoding enc of name zName, length nName.