table.lo threads.lo tokenize.lo treeview.lo trigger.lo \
update.lo userauth.lo upsert.lo util.lo vacuum.lo \
vdbe.lo vdbeapi.lo vdbeaux.lo vdbeblob.lo vdbemem.lo vdbesort.lo \
- vdbetrace.lo wal.lo walker.lo where.lo wherecode.lo whereexpr.lo \
+ vdbetrace.lo vdbetrace.lo \
+ wal.lo walker.lo where.lo wherecode.lo whereexpr.lo \
window.lo utf.lo vtab.lo
# Object files for the amalgamation.
$(TOP)/src/vdbemem.c \
$(TOP)/src/vdbesort.c \
$(TOP)/src/vdbetrace.c \
+ $(TOP)/src/vdbevtab.c \
$(TOP)/src/vdbeInt.h \
$(TOP)/src/vtab.c \
$(TOP)/src/vxworks.h \
$(TOP)/src/vdbe.c \
$(TOP)/src/vdbemem.c \
$(TOP)/src/vdbetrace.c \
+ $(TOP)/src/vdbevtab.c \
$(TOP)/src/where.c \
$(TOP)/src/wherecode.c \
$(TOP)/src/whereexpr.c \
SHELL_OPT += -DSQLITE_ENABLE_STMTVTAB
SHELL_OPT += -DSQLITE_ENABLE_DBPAGE_VTAB
SHELL_OPT += -DSQLITE_ENABLE_DBSTAT_VTAB
+SHELL_OPT += -DSQLITE_ENABLE_BYTECODE_VTAB
SHELL_OPT += -DSQLITE_ENABLE_OFFSET_SQL_FUNC
SHELL_OPT += -DSQLITE_ENABLE_DESERIALIZE
FUZZERSHELL_OPT = -DSQLITE_ENABLE_JSON1
FUZZCHECK_OPT += -DSQLITE_ENABLE_RTREE
FUZZCHECK_OPT += -DSQLITE_ENABLE_GEOPOLY
FUZZCHECK_OPT += -DSQLITE_ENABLE_DBSTAT_VTAB
+FUZZCHECK_OPT += -DSQLITE_ENABLE_BYTECODE_VTAB
FUZZCHECK_SRC = $(TOP)/test/fuzzcheck.c $(TOP)/test/ossfuzz.c
DBFUZZ_OPT =
-DSQLITE_ENABLE_DESERIALIZE \
-DSQLITE_DEBUG \
-DSQLITE_ENABLE_DBSTAT_VTAB \
+ -DSQLITE_ENABLE_BYTECODE_VTAB \
-DSQLITE_ENABLE_RTREE \
-DSQLITE_ENABLE_FTS4 \
-DSQLITE_ENABLE_FTS5
vdbetrace.lo: $(TOP)/src/vdbetrace.c $(HDR)
$(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/vdbetrace.c
+vdbevtab.lo: $(TOP)/src/vdbevtab.c $(HDR)
+ $(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/vdbevtab.c
+
vtab.lo: $(TOP)/src/vtab.c $(HDR)
$(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/vtab.c
TESTFIXTURE_FLAGS += -DSQLITE_DEFAULT_PAGE_SIZE=1024
TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_STMTVTAB
TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_DBPAGE_VTAB
+TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_BYTECODE_VTAB
TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_DESERIALIZE
TESTFIXTURE_SRC0 = $(TESTSRC2) libsqlite3.la
OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_STMTVTAB=1
OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_DBPAGE_VTAB=1
OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_DBSTAT_VTAB=1
+OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_BYTECODE_VTAB=1
OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_DESERIALIZE=1
!ENDIF
OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_COLUMN_METADATA=1
$(TOP)\src\vdbemem.c \
$(TOP)\src\vdbesort.c \
$(TOP)\src\vdbetrace.c \
+ $(TOP)\src\vdbevtab.c \
$(TOP)\src\vtab.c \
$(TOP)\src\wal.c \
$(TOP)\src\walker.c \
FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_RTREE
FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_GEOPOLY
FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_DBSTAT_VTAB
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_BYTECODE_VTAB
FUZZCHECK_SRC = $(TOP)\test\fuzzcheck.c $(TOP)\test\ossfuzz.c
OSSSHELL_SRC = $(TOP)\test\ossshell.c $(TOP)\test\ossfuzz.c
vdbetrace.lo: $(TOP)\src\vdbetrace.c $(HDR)
$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbetrace.c
+vdbevtab.lo: $(TOP)\src\vdbevtab.c $(HDR)
+ $(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbevtab.c
+
vtab.lo: $(TOP)\src\vtab.c $(HDR)
$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vtab.c
TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_DEFAULT_PAGE_SIZE=1024
TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_ENABLE_STMTVTAB=1
TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_ENABLE_DBPAGE_VTAB=1
+TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_ENABLE_BYTECODE_VTAB=1
TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_ENABLE_JSON1=1
TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_ENABLE_DESERIALIZE=1
TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) $(TEST_CCONV_OPTS)
table.o threads.o tokenize.o treeview.o trigger.o \
update.o upsert.o userauth.o util.o vacuum.o \
vdbeapi.o vdbeaux.o vdbeblob.o vdbemem.o vdbesort.o \
- vdbetrace.o wal.o walker.o where.o wherecode.o whereexpr.o \
+ vdbetrace.o vdbevtab.o \
+ wal.o walker.o where.o wherecode.o whereexpr.o \
utf.o vtab.o window.o
LIBOBJ += sqlite3session.o
$(TOP)/src/vdbemem.c \
$(TOP)/src/vdbesort.c \
$(TOP)/src/vdbetrace.c \
+ $(TOP)/src/vdbevtab.c \
$(TOP)/src/vdbeInt.h \
$(TOP)/src/vtab.c \
$(TOP)/src/vxworks.h \
SHELL_OPT += -DSQLITE_ENABLE_STMTVTAB
SHELL_OPT += -DSQLITE_ENABLE_DBPAGE_VTAB
SHELL_OPT += -DSQLITE_ENABLE_DBSTAT_VTAB
+SHELL_OPT += -DSQLITE_ENABLE_BYTECODE_VTAB
SHELL_OPT += -DSQLITE_ENABLE_OFFSET_SQL_FUNC
FUZZERSHELL_OPT = -DSQLITE_ENABLE_JSON1
FUZZCHECK_OPT = -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_MEMSYS5
FUZZCHECK_OPT += -DSQLITE_ENABLE_RTREE
FUZZCHECK_OPT += -DSQLITE_ENABLE_GEOPOLY
FUZZCHECK_OPT += -DSQLITE_ENABLE_DBSTAT_VTAB
+FUZZCHECK_OPT += -DSQLITE_ENABLE_BYTECODE_VTAB
DBFUZZ_OPT =
KV_OPT = -DSQLITE_THREADSAFE=0 -DSQLITE_DIRECT_OVERFLOW_READ
ST_OPT = -DSQLITE_THREADSAFE=0
-DSQLITE_ENABLE_DESERIALIZE \
-DSQLITE_DEBUG \
-DSQLITE_ENABLE_DBSTAT_VTAB \
+ -DSQLITE_ENABLE_BYTECODE_VTAB \
-DSQLITE_ENABLE_RTREE \
-DSQLITE_ENABLE_FTS4 \
-DSQLITE_ENABLE_FTS5
TESTFIXTURE_FLAGS += -DSQLITE_DEFAULT_PAGE_SIZE=1024
TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_STMTVTAB
TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_DBPAGE_VTAB
+TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_BYTECODE_VTAB
TESTFIXTURE_FLAGS += -DTCLSH_INIT_PROC=sqlite3TestInit
testfixture$(EXE): $(TESTSRC2) libsqlite3.a $(TESTSRC) $(TOP)/src/tclsqlite.c
-C Fix\sto\sthe\srecomputation\sof\sthe\scolUsed\sfield\sadded\sby\scheck-in\n[a9bb71ba708ba722].\s\sThis\sfixes\sticket\s[5829597ac43811e3].
-D 2020-03-21T23:10:38.823
+C Infrastructure\sfor\sthe\sbytecode()\stable-valued\sfunction.\s\sThe\sfunction\sitself\nis\snot\syet\simplemented.
+D 2020-03-23T15:49:22.754
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
-F Makefile.in 9dfc7936f675785309b74d09202bb656732325e65df889e5aaa18cc8932e5b0c
+F Makefile.in 016dc963c45b84bd4826b2a36da4d61077d55580011567af2c545cdf99bd82ea
F Makefile.linux-gcc f609543700659711fbd230eced1f01353117621dccae7b9fb70daa64236c5241
-F Makefile.msc fab23c6b10cb6f06a7e9c407fc2e35cb184a6d653f1b793bda87fcee2eafa4f6
+F Makefile.msc 9bbfd86c376c295915e36c21dee1be88cdb46c2f2acf44df58940b69fb25c11c
F README.md 1514a365ffca3c138e00c5cc839906108a01011a6b082bad19b09781e3aa498a
F VERSION 980d78a2ce04a1fd0ebefbaabd665f7f9186563820629ee29c6e350e96f19b52
F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
F install-sh 9d4de14ab9fb0facae2f48780b874848cbf2f895 x
F ltmain.sh 3ff0879076df340d2e23ae905484d8c15d5fdea8
F magic.txt 8273bf49ba3b0c8559cb2774495390c31fd61c60
-F main.mk 7ce055f3df31a4f7d21e38f493f907c21db1f673863a573e231f55e2ab005023
+F main.mk 87e0c76bbcfcf32d115c01eb8430b39d679ddadb5e8cb65f717b672b6ac5a4e0
F mkso.sh fd21c06b063bb16a5d25deea1752c2da6ac3ed83
F mptest/config01.test 3c6adcbc50b991866855f1977ff172eb6d901271
F mptest/config02.test 4415dfe36c48785f751e16e32c20b077c28ae504
F src/build.c 3d22f21c4701f62c1a191c6b6d17552fb1b593fe9a97c0613cca05ab104a9a51
F src/callback.c d0b853dd413255d2e337b34545e54d888ea02f20da5ad0e63585b389624c4a6c
F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
-F src/ctime.c 6a77ec9e0eb87aea929e002c816298907e337094a7b556898ae2d1e6be209f90
+F src/ctime.c 6892999ee100bd72b64f84dd7a8f737817d72872648705fbf8ed9575e1f1dd1a
F src/date.c 6c408fdd2e9ddf6e8431aba76315a2d061bea2cec8fbb75e25d7c1ba08274712
F src/dbpage.c 8a01e865bf8bc6d7b1844b4314443a6436c07c3efe1d488ed89e81719047833a
F src/dbstat.c 793deaf88a0904f88285d93d6713c636d55ede0ffd9f08d10f4ea825531d367f
F src/insert.c 8e4211d04eb460c0694d486c6ba1c068d468c6f653c3f237869a802ad82854de
F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa
F src/loadext.c b179df50e6e8bb0c36c149e95d958d49bd8c6c7469e59c01b53d164360bc6c32
-F src/main.c b11eec03807a038b4075d310936dc33ce597078ab78c35dacdf5f05446ed53de
+F src/main.c ed15d7e6b73ac081cf354b3544e7792a775492b19b2abf95e9f8be06e8c1c5e5
F src/malloc.c eaa4dc9602ce28b077f7de2eb275db2be270c5cc56d7fec5466301bd9b80e2f5
F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
F src/mem1.c c12a42539b1ba105e3707d0e628ad70e611040d8f5e38cf942cee30c867083de
F src/util.c a285c1e026907b69fa2592bd05047a565a1d8a1aef2b73c924b6a8ffe772871a
F src/vacuum.c 813b510ba887fee6492bcb11f2bf77d7eb58b232b83649136372e0a2fc17f4b9
F src/vdbe.c c1c123c6248fa88940b932a00bcc75056921b6d046d45a82566cb97415d2299c
-F src/vdbe.h 51282fbe819ee0e8eeeaab176240860d334c20a12b14f3b363e7f1a4e05d60b9
+F src/vdbe.h 07b8c636a87df8b6e58f29d6badd7f10d5844353deff1d7c88ed1c2bfe3bbd35
F src/vdbeInt.h 0b728ee662862a38b1912af741e2ac64f524de3c77aa86cf4306c42bdcd9de59
F src/vdbeapi.c 1252d80c548711e47a6d84dae88ed4e95d3fbb4e7bd0eaa1347299af7efddf02
F src/vdbeaux.c b78b4b71e04643f63820f074ece069834ffa658580546e9f248d5d85966daed2
F src/vdbemem.c 39b942ecca179f4f30a32b54579a85d74ccaefa5af2a0ad2700abe5ef0768b22
F src/vdbesort.c 2be76d26998ce2b3324cdcc9f6443728e54b6c7677c553ad909c7d7cfab587df
F src/vdbetrace.c fa3bf238002f0bbbdfb66cc8afb0cea284ff9f148d6439bc1f6f2b4c3b7143f0
+F src/vdbevtab.c dfe1e9b661e3de27f49fc160a04fc0275ab08bb46cdf20943bf2bf418db398a5
F src/vtab.c 7b704a90515a239c6cdba6a66b1bb3a385e62326cceb5ecb05ec7a091d6b8515
F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
F src/wal.c 697424314e40d99f93f548c7bfa526c10e87f4bdf64d5a76a96b999dd7133ebc
F tool/mksourceid.c 36aa8020014aed0836fd13c51d6dc9219b0df1761d6b5f58ff5b616211b079b9
F tool/mkspeedsql.tcl a1a334d288f7adfe6e996f2e712becf076745c97
F tool/mksqlite3c-noext.tcl 4f7cfef5152b0c91920355cbfc1d608a4ad242cb819f1aea07f6d0274f584a7f
-F tool/mksqlite3c.tcl 5fed3d75069d8f66f202d3b5200b0cea4aa7108481acd06732a06fdd42eb83a2
+F tool/mksqlite3c.tcl 3ab95bcf7b765f9d6d99cbeb8c4f150b38b0bb1f001ffac688f2ad02ebce2123
F tool/mksqlite3h.tcl 080873e3856eceb9d289a08a00c4b30f875ea3feadcbece796bd509b1532792c
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 8a5c539b77aa174c048a504d211c56902075f9b42b654e1f8cc5767739e5fcc9
-R 480ea7ba1b66f997fe626bc516b1544b
+P 5d14a1c4f2fc17de98ad685ad1422cdfda89dfccb00afcaf32ee416b6f84f525
+R 3485af640bb73943f778dcc7ece65b48
+T *branch * bytecode-function
+T *sym-bytecode-function *
+T -sym-trunk *
U drh
-Z 1f463b1edcb75b2ef80d4761df1603b9
+Z c3d3bb21394129afccd09dd7aadc133f
-5d14a1c4f2fc17de98ad685ad1422cdfda89dfccb00afcaf32ee416b6f84f525
\ No newline at end of file
+2795f0d633577e0de66b389d9e8e44c55e85975bdc62f1a0b8f93959d19b22bf
\ No newline at end of file
#if SQLITE_ENABLE_BATCH_ATOMIC_WRITE
"ENABLE_BATCH_ATOMIC_WRITE",
#endif
+#if SQLITE_ENABLE_BYTECODE_VTAB
+ "ENABLE_BYTECODE_VTAB",
+#endif
#if SQLITE_ENABLE_CEROD
"ENABLE_CEROD=" CTIMEOPT_VAL(SQLITE_ENABLE_CEROD),
#endif
}
#endif
+#ifdef SQLITE_ENABLE_BYTECODE_VTAB
+ if( !db->mallocFailed && rc==SQLITE_OK){
+ rc = sqlite3VdbeBytecodeVtabInit(db);
+ }
+#endif
+
#ifdef SQLITE_ENABLE_INTERNAL_FUNCTIONS
/* Testing use only!!! The -DSQLITE_ENABLE_INTERNAL_FUNCTIONS=1 compile-time
** option gives access to internal functions by default.
int sqlite3VdbeHasSubProgram(Vdbe*);
int sqlite3NotPureFunc(sqlite3_context*);
+#ifdef SQLITE_ENABLE_BYTECODE_VTAB
+int sqlite3VdbeBytecodeVtabInit(sqlite3*);
+#endif
/* Use SQLITE_ENABLE_COMMENTS to enable generation of extra comments on
** each VDBE opcode.
--- /dev/null
+/*
+** 2020-03-23
+**
+** 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 implements virtual-tables for examining the bytecode content
+** of a prepared statement.
+*/
+#ifdef SQLITE_ENABLE_BYTECODE_VTAB
+#include "sqliteInt.h"
+#include "vdbeInt.h"
+
+/* An instance of the bytecode() table-valued function.
+*/
+typedef struct bytecodevtab_vtab bytecodevtab_vtab;
+struct bytecodevtab_vtab {
+ sqlite3_vtab base; /* Base class - must be first */
+ sqlite3_stmt *pStmt; /* The statement whose bytecode is to be displayed */
+};
+
+/* A cursor for scanning through the bytecode
+*/
+typedef struct bytecodevtab_cursor bytecodevtab_cursor;
+struct bytecodevtab_cursor {
+ sqlite3_vtab_cursor base; /* Base class - must be first */
+ sqlite3_int64 iRowid; /* The rowid */
+};
+
+/*
+** Create a new bytecode() table-valued function.
+*/
+static int bytecodevtabConnect(
+ sqlite3 *db,
+ void *pAux,
+ int argc, const char *const*argv,
+ sqlite3_vtab **ppVtab,
+ char **pzErr
+){
+ bytecodevtab_vtab *pNew;
+ int rc;
+
+ rc = sqlite3_declare_vtab(db,
+ "CREATE TABLE x("
+ "addr INT,"
+ "opcode TEXT,"
+ "p1 INT,"
+ "p2 INT,"
+ "p3 INT,"
+ "p4 TEXT,"
+ "p5 INT,"
+ "comment TEXT,"
+ "subprog TEXT,"
+ "stmt HIDDEN"
+ ");"
+ );
+ if( rc==SQLITE_OK ){
+ pNew = sqlite3_malloc( sizeof(*pNew) );
+ *ppVtab = (sqlite3_vtab*)pNew;
+ if( pNew==0 ) return SQLITE_NOMEM;
+ memset(pNew, 0, sizeof(*pNew));
+ }
+ return rc;
+}
+
+/*
+** This method is the destructor for bytecodevtab_vtab objects.
+*/
+static int bytecodevtabDisconnect(sqlite3_vtab *pVtab){
+ bytecodevtab_vtab *p = (bytecodevtab_vtab*)pVtab;
+ sqlite3_free(p);
+ return SQLITE_OK;
+}
+
+/*
+** Constructor for a new bytecodevtab_cursor object.
+*/
+static int bytecodevtabOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+ bytecodevtab_cursor *pCur;
+ pCur = sqlite3_malloc( sizeof(*pCur) );
+ if( pCur==0 ) return SQLITE_NOMEM;
+ memset(pCur, 0, sizeof(*pCur));
+ *ppCursor = &pCur->base;
+ return SQLITE_OK;
+}
+
+/*
+** Destructor for a bytecodevtab_cursor.
+*/
+static int bytecodevtabClose(sqlite3_vtab_cursor *cur){
+ bytecodevtab_cursor *pCur = (bytecodevtab_cursor*)cur;
+ sqlite3_free(pCur);
+ return SQLITE_OK;
+}
+
+
+/*
+** Advance a bytecodevtab_cursor to its next row of output.
+*/
+static int bytecodevtabNext(sqlite3_vtab_cursor *cur){
+ bytecodevtab_cursor *pCur = (bytecodevtab_cursor*)cur;
+ pCur->iRowid++;
+ return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the bytecodevtab_cursor
+** is currently pointing.
+*/
+static int bytecodevtabColumn(
+ sqlite3_vtab_cursor *cur, /* The cursor */
+ sqlite3_context *ctx, /* First argument to sqlite3_result_...() */
+ int i /* Which column to return */
+){
+ bytecodevtab_cursor *pCur = (bytecodevtab_cursor*)cur;
+#if 0
+ switch( i ){
+ case TEMPLATEVTAB_A:
+ sqlite3_result_int(ctx, 1000 + pCur->iRowid);
+ break;
+ default:
+ assert( i==TEMPLATEVTAB_B );
+ sqlite3_result_int(ctx, 2000 + pCur->iRowid);
+ break;
+ }
+#endif
+ return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row. In this implementation, the
+** rowid is the same as the output value.
+*/
+static int bytecodevtabRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+ bytecodevtab_cursor *pCur = (bytecodevtab_cursor*)cur;
+ *pRowid = pCur->iRowid;
+ return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int bytecodevtabEof(sqlite3_vtab_cursor *cur){
+ bytecodevtab_cursor *pCur = (bytecodevtab_cursor*)cur;
+ return pCur->iRowid>=10;
+}
+
+/*
+** This method is called to "rewind" the bytecodevtab_cursor object back
+** to the first row of output. This method is always called at least
+** once prior to any call to bytecodevtabColumn() or bytecodevtabRowid() or
+** bytecodevtabEof().
+*/
+static int bytecodevtabFilter(
+ sqlite3_vtab_cursor *pVtabCursor,
+ int idxNum, const char *idxStr,
+ int argc, sqlite3_value **argv
+){
+ bytecodevtab_cursor *pCur = (bytecodevtab_cursor *)pVtabCursor;
+ pCur->iRowid = 1;
+ return SQLITE_OK;
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the virtual table. This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+*/
+static int bytecodevtabBestIndex(
+ sqlite3_vtab *tab,
+ sqlite3_index_info *pIdxInfo
+){
+ pIdxInfo->estimatedCost = (double)10;
+ pIdxInfo->estimatedRows = 10;
+ return SQLITE_OK;
+}
+
+/*
+** This following structure defines all the methods for the
+** virtual table.
+*/
+static sqlite3_module bytecodevtabModule = {
+ /* iVersion */ 0,
+ /* xCreate */ 0,
+ /* xConnect */ bytecodevtabConnect,
+ /* xBestIndex */ bytecodevtabBestIndex,
+ /* xDisconnect */ bytecodevtabDisconnect,
+ /* xDestroy */ 0,
+ /* xOpen */ bytecodevtabOpen,
+ /* xClose */ bytecodevtabClose,
+ /* xFilter */ bytecodevtabFilter,
+ /* xNext */ bytecodevtabNext,
+ /* xEof */ bytecodevtabEof,
+ /* xColumn */ bytecodevtabColumn,
+ /* xRowid */ bytecodevtabRowid,
+ /* xUpdate */ 0,
+ /* xBegin */ 0,
+ /* xSync */ 0,
+ /* xCommit */ 0,
+ /* xRollback */ 0,
+ /* xFindMethod */ 0,
+ /* xRename */ 0,
+ /* xSavepoint */ 0,
+ /* xRelease */ 0,
+ /* xRollbackTo */ 0,
+ /* xShadowName */ 0
+};
+
+
+int sqlite3VdbeBytecodeVtabInit(sqlite3 *db){
+ int rc;
+ rc = sqlite3_create_module(db, "bytecodevtab", &bytecodevtabModule, 0);
+ return rc;
+}
+#endif /* SQLITE_ENABLE_BYTECODE_VTAB */
vdbe.c
vdbeblob.c
vdbesort.c
+ vdbevtab.c
memjournal.c
walker.c
projects / thirdparty / sqlite.git / commitdiff
