-C In\sthe\sspeed-check.sh\stest\sscript,\sallow\san\sadditional\stest-name\sargument\nwhich\sbecomes\sthe\scomparison\sbaseline,\sin\splace\sof\s"trunk".
-D 2017-10-11T12:20:36.082
-F Makefile.in 4bc36d913c2e3e2d326d588d72f618ac9788b2fd4b7efda61102611a6495c3ff
+C Initial\simplementation\sof\sthe\s"sqlite_dbpage"\svirtual\stable.\s\sCurrently\nit\sis\sread-only\sand\shas\sa\splace-holder\sxBestIndex.
+D 2017-10-11T13:48:11.877
+F Makefile.in f7cba589198b8663d8a43f25ad001cf44fdac4fcd6216325f05775924a7af2f9
F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
-F Makefile.msc 6033b51b6aea702ea059f6ab2d47b1d3cef648695f787247dd4fb395fe60673f
+F Makefile.msc 1224c8773fc7f89c57e83c7b452291d239aa2cff4af50a204c84129e295cc37d
F README.md f5c87359573c4d255425e588a56554b50fdcc2afba4e017a2e02a43701456afd
F VERSION f81232df28e2d3ff049feefad5fbd5489cc33697f6bd2ecf61af7f0dde3b83d0
F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
F install-sh 9d4de14ab9fb0facae2f48780b874848cbf2f895 x
F ltmain.sh 3ff0879076df340d2e23ae905484d8c15d5fdea8
F magic.txt 8273bf49ba3b0c8559cb2774495390c31fd61c60
-F main.mk d0145f02deb67d65c4822225847cba112c237cdb62f4905eeb4b648e82bfc222
+F main.mk 656d9f31fdc01290094460f00255a45fdf4bedd08839467857919fea628582cf
F mkso.sh fd21c06b063bb16a5d25deea1752c2da6ac3ed83
F mptest/config01.test 3c6adcbc50b991866855f1977ff172eb6d901271
F mptest/config02.test 4415dfe36c48785f751e16e32c20b077c28ae504
F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
F src/ctime.c ff1be3eed7bdd75aaca61ca8dc848f7c9f850ef2fb9cb56f2734e922a098f9c0
F src/date.c 48f743d88bbe88f848532d333cca84f26e52a4f217e86f86be7fc1b919c33d74
+F src/dbpage.c f274a9b7bb680cc2952ee78883d67e133be0ef6065317813586a5f723af35ad5
F src/dbstat.c 7a4ba8518b6369ef3600c49cf9c918ad979acba610b2aebef1b656d649b96720
F src/delete.c 21a5f1812fdb599e9f7afb9f650bdabab60a3afd51d7e94e539c982f647b0023
F src/expr.c 4d2d0aafd945424f638ee03e11330f03288ccf616e025498f3c8602d01609a0a
F src/insert.c 1f33ef4ca0553b60fff03aa171370f8709a3e945acfcc68ccafc92752d872f40
F src/legacy.c 134ab3e3fae00a0f67a5187981d6935b24b337bcf0f4b3e5c9fa5763da95bf4e
F src/loadext.c 20865b183bb8a3723d59cf1efffc3c50217eb452c1021d077b908c94da26b0b2
-F src/main.c a4bdadaaa827e7380cba4de878ed7947dab5aeb84f617118ba6a0422cd745b4b
+F src/main.c 54637b9e7f91de6d281e577cd1a997762a4613f51a0509790027ca9865185d7c
F src/malloc.c a02c9e69bc76bee0f639416b947a946412890b606301454727feadcb313536d6
F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
F src/mem1.c c12a42539b1ba105e3707d0e628ad70e611040d8f5e38cf942cee30c867083de
F src/sqlite.h.in ab4f8a29d1580dfaeb6891fa1b83cff8229ba0daa56994707ceaca71495d9ab7
F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
F src/sqlite3ext.h a1fd3aa82f967da436164e0728a7d6841651fd0c6e27b9044e0eb9f6c8462e47
-F src/sqliteInt.h c07bc88eca1f59ce73e1f486187d0df4effe67c4579e112dfdd91c159e5c0569
+F src/sqliteInt.h 6f93fd6fde862410ac26b930f70752c38ad99ea78c3fc28356bac78049c53bd9
F src/sqliteLimit.h 1513bfb7b20378aa0041e7022d04acb73525de35b80b252f1b83fedb4de6a76b
F src/status.c 9737ed017279a9e0c5da748701c3c7bf1e8ae0dae459aad20dd64fcff97a7e35
F src/table.c b46ad567748f24a326d9de40e5b9659f96ffff34
F tool/mksourceid.c d458f9004c837bee87a6382228ac20d3eae3c49ea3b0a5aace936f8b60748d3b
F tool/mkspeedsql.tcl a1a334d288f7adfe6e996f2e712becf076745c97
F tool/mksqlite3c-noext.tcl fef88397668ae83166735c41af99d79f56afaabb
-F tool/mksqlite3c.tcl b258d679829a9305f5cf107b7d97b9bf23adb3773df42947fed5ef7b180dfbd9
+F tool/mksqlite3c.tcl 1fb69d39166f52d802a70ec37d99bca51d011c8ab30be27bc495be493196ae41
F tool/mksqlite3h.tcl f92f994d9709aeb9e2b6e6f9fc8b069d2f55202c8e23f453edc44390a25982dc
F tool/mksqlite3internalh.tcl eb994013e833359137eb53a55acdad0b5ae1049b
F tool/mkvsix.tcl b9e0777a213c23156b6542842c238479e496ebf5
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P b8c1b5a584aeb6ab63cff875ca16135efeadac16b4b32afa589845477feebf32
-R 9a03aa36b167c86705816bfaa31cdc19
+P 0245adffc6f9b580217e0d2feb396d6895e54cdc25f5dfc9c8f4090b919e9e49
+R 9d91f38d6de2e0aabd371a2c4dbcd832
+T *branch * dbpage
+T *sym-dbpage *
+T -sym-trunk *
U drh
-Z 8f5e2f1e221681e7d4bf20eb32b86754
+Z 95e75b385006fb35e51e104eb16c88ba
--- /dev/null
+/*
+** 2017-10-11
+**
+** The author disclaims copyright to this source code. In place of
+** a legal notice, here is a blessing:
+**
+** May you do good and not evil.
+** May you find forgiveness for yourself and forgive others.
+** May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains an implementation of the "sqlite_dbpage" virtual table.
+**
+** The sqlite_dbpage virtual table is used to read or write whole raw
+** pages of the database file. The pager interface is used so that
+** uncommitted changes and changes recorded in the WAL file are correctly
+** retrieved.
+*/
+
+#include "sqliteInt.h" /* Requires access to internal data structures */
+#if (defined(SQLITE_ENABLE_DBPAGE_VTAB) || defined(SQLITE_TEST)) \
+ && !defined(SQLITE_OMIT_VIRTUALTABLE)
+
+typedef struct DbpageTable DbpageTable;
+typedef struct DbpageCursor DbpageCursor;
+
+struct DbpageCursor {
+ sqlite3_vtab_cursor base; /* Base class. Must be first */
+ int pgno; /* Current page number */
+};
+
+struct DbpageTable {
+ sqlite3_vtab base; /* Base class. Must be first */
+ sqlite3 *db; /* The database */
+ Pager *pPager; /* Pager being read/written */
+ int iDb; /* Index of database to analyze */
+ int szPage; /* Size of each page in bytes */
+ int nPage; /* Number of pages in the file */
+};
+
+/*
+** Connect to or create a dbpagevfs virtual table.
+*/
+static int dbpageConnect(
+ sqlite3 *db,
+ void *pAux,
+ int argc, const char *const*argv,
+ sqlite3_vtab **ppVtab,
+ char **pzErr
+){
+ DbpageTable *pTab = 0;
+ int rc = SQLITE_OK;
+ int iDb;
+
+ if( argc>=4 ){
+ Token nm;
+ sqlite3TokenInit(&nm, (char*)argv[3]);
+ iDb = sqlite3FindDb(db, &nm);
+ if( iDb<0 ){
+ *pzErr = sqlite3_mprintf("no such schema: %s", argv[3]);
+ return SQLITE_ERROR;
+ }
+ }else{
+ iDb = 0;
+ }
+ rc = sqlite3_declare_vtab(db,
+ "CREATE TABLE x(pgno INTEGER PRIMARY KEY, data BLOB)");
+ if( rc==SQLITE_OK ){
+ pTab = (DbpageTable *)sqlite3_malloc64(sizeof(DbpageTable));
+ if( pTab==0 ) rc = SQLITE_NOMEM_BKPT;
+ }
+
+ assert( rc==SQLITE_OK || pTab==0 );
+ if( rc==SQLITE_OK ){
+ Btree *pBt = db->aDb[iDb].pBt;
+ memset(pTab, 0, sizeof(DbpageTable));
+ pTab->db = db;
+ pTab->iDb = iDb;
+ pTab->pPager = pBt ? sqlite3BtreePager(pBt) : 0;
+ }
+
+ *ppVtab = (sqlite3_vtab*)pTab;
+ return rc;
+}
+
+/*
+** Disconnect from or destroy a dbpagevfs virtual table.
+*/
+static int dbpageDisconnect(sqlite3_vtab *pVtab){
+ sqlite3_free(pVtab);
+ return SQLITE_OK;
+}
+
+/*
+** idxNum:
+**
+** 0 full table scan
+** 1 pgno=?1
+*/
+static int dbpageBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
+ pIdxInfo->estimatedCost = 1.0e6; /* Initial cost estimate */
+ return SQLITE_OK;
+}
+
+/*
+** Open a new dbpagevfs cursor.
+*/
+static int dbpageOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+ DbpageCursor *pCsr;
+
+ pCsr = (DbpageCursor *)sqlite3_malloc64(sizeof(DbpageCursor));
+ if( pCsr==0 ){
+ return SQLITE_NOMEM_BKPT;
+ }else{
+ memset(pCsr, 0, sizeof(DbpageCursor));
+ pCsr->base.pVtab = pVTab;
+ pCsr->pgno = -1;
+ }
+
+ *ppCursor = (sqlite3_vtab_cursor *)pCsr;
+ return SQLITE_OK;
+}
+
+/*
+** Close a dbpagevfs cursor.
+*/
+static int dbpageClose(sqlite3_vtab_cursor *pCursor){
+ DbpageCursor *pCsr = (DbpageCursor *)pCursor;
+ sqlite3_free(pCsr);
+ return SQLITE_OK;
+}
+
+/*
+** Move a dbpagevfs cursor to the next entry in the file.
+*/
+static int dbpageNext(sqlite3_vtab_cursor *pCursor){
+ int rc = SQLITE_OK;
+ DbpageCursor *pCsr = (DbpageCursor *)pCursor;
+ pCsr->pgno++;
+ return rc;
+}
+
+static int dbpageEof(sqlite3_vtab_cursor *pCursor){
+ DbpageCursor *pCsr = (DbpageCursor *)pCursor;
+ DbpageTable *pTab = (DbpageTable *)pCursor->pVtab;
+ return pCsr->pgno >= pTab->nPage;
+}
+
+static int dbpageFilter(
+ sqlite3_vtab_cursor *pCursor,
+ int idxNum, const char *idxStr,
+ int argc, sqlite3_value **argv
+){
+ DbpageCursor *pCsr = (DbpageCursor *)pCursor;
+ DbpageTable *pTab = (DbpageTable *)pCursor->pVtab;
+ int rc = SQLITE_OK;
+ Btree *pBt = pTab->db->aDb[pTab->iDb].pBt;
+
+ if( idxNum==1 ){
+ pCsr->pgno = sqlite3_value_int(argv[0]);
+ }else{
+ pCsr->pgno = 0;
+ }
+ pTab->szPage = sqlite3BtreeGetPageSize(pBt);
+ pTab->nPage = sqlite3BtreeLastPage(pBt);
+ return rc;
+}
+
+static int dbpageColumn(
+ sqlite3_vtab_cursor *pCursor,
+ sqlite3_context *ctx,
+ int i
+){
+ DbpageCursor *pCsr = (DbpageCursor *)pCursor;
+ DbpageTable *pTab = (DbpageTable *)pCursor->pVtab;
+ int rc = SQLITE_OK;
+ switch( i ){
+ case 0: { /* pgno */
+ sqlite3_result_int(ctx, pCsr->pgno);
+ break;
+ }
+ case 1: { /* data */
+ DbPage *pDbPage = 0;
+ rc = sqlite3PagerGet(pTab->pPager, pCsr->pgno, (DbPage**)&pDbPage, 0);
+ if( rc==SQLITE_OK ){
+ sqlite3_result_blob(ctx, sqlite3PagerGetData(pDbPage), pTab->szPage,
+ SQLITE_TRANSIENT);
+ }
+ sqlite3PagerUnref(pDbPage);
+ break;
+ }
+ default: { /* schema */
+ sqlite3 *db = sqlite3_context_db_handle(ctx);
+ sqlite3_result_text(ctx, db->aDb[pTab->iDb].zDbSName, -1, SQLITE_STATIC);
+ break;
+ }
+ }
+ return SQLITE_OK;
+}
+
+static int dbpageRowid(sqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
+ DbpageCursor *pCsr = (DbpageCursor *)pCursor;
+ *pRowid = pCsr->pgno;
+ return SQLITE_OK;
+}
+
+/*
+** Invoke this routine to register the "dbpage" virtual table module
+*/
+int sqlite3DbpageRegister(sqlite3 *db){
+ static sqlite3_module dbpage_module = {
+ 0, /* iVersion */
+ dbpageConnect, /* xCreate */
+ dbpageConnect, /* xConnect */
+ dbpageBestIndex, /* xBestIndex */
+ dbpageDisconnect, /* xDisconnect */
+ dbpageDisconnect, /* xDestroy */
+ dbpageOpen, /* xOpen - open a cursor */
+ dbpageClose, /* xClose - close a cursor */
+ dbpageFilter, /* xFilter - configure scan constraints */
+ dbpageNext, /* xNext - advance a cursor */
+ dbpageEof, /* xEof - check for end of scan */
+ dbpageColumn, /* xColumn - read data */
+ dbpageRowid, /* xRowid - read data */
+ 0, /* xUpdate */
+ 0, /* xBegin */
+ 0, /* xSync */
+ 0, /* xCommit */
+ 0, /* xRollback */
+ 0, /* xFindMethod */
+ 0, /* xRename */
+ 0, /* xSavepoint */
+ 0, /* xRelease */
+ 0, /* xRollbackTo */
+ };
+ return sqlite3_create_module(db, "sqlite_dbpage", &dbpage_module, 0);
+}
+#elif defined(SQLITE_ENABLE_DBPAGE_VTAB)
+int sqlite3DbpageRegister(sqlite3 *db){ return SQLITE_OK; }
+#endif /* SQLITE_ENABLE_DBSTAT_VTAB */
projects / thirdparty / sqlite.git / commitdiff
