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-rw-r--r--vendor/github.com/mattn/go-sqlite3/sqlite3.go1160
1 files changed, 0 insertions, 1160 deletions
diff --git a/vendor/github.com/mattn/go-sqlite3/sqlite3.go b/vendor/github.com/mattn/go-sqlite3/sqlite3.go
deleted file mode 100644
index 03b82d178..000000000
--- a/vendor/github.com/mattn/go-sqlite3/sqlite3.go
+++ /dev/null
@@ -1,1160 +0,0 @@
-// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
-//
-// Use of this source code is governed by an MIT-style
-// license that can be found in the LICENSE file.
-
-package sqlite3
-
-/*
-#cgo CFLAGS: -std=gnu99
-#cgo CFLAGS: -DSQLITE_ENABLE_RTREE -DSQLITE_THREADSAFE=1
-#cgo CFLAGS: -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DSQLITE_ENABLE_FTS4_UNICODE61
-#cgo CFLAGS: -DSQLITE_TRACE_SIZE_LIMIT=15
-#cgo CFLAGS: -DSQLITE_DISABLE_INTRINSIC
-#cgo CFLAGS: -Wno-deprecated-declarations
-#ifndef USE_LIBSQLITE3
-#include <sqlite3-binding.h>
-#else
-#include <sqlite3.h>
-#endif
-#include <stdlib.h>
-#include <string.h>
-
-#ifdef __CYGWIN__
-# include <errno.h>
-#endif
-
-#ifndef SQLITE_OPEN_READWRITE
-# define SQLITE_OPEN_READWRITE 0
-#endif
-
-#ifndef SQLITE_OPEN_FULLMUTEX
-# define SQLITE_OPEN_FULLMUTEX 0
-#endif
-
-#ifndef SQLITE_DETERMINISTIC
-# define SQLITE_DETERMINISTIC 0
-#endif
-
-static int
-_sqlite3_open_v2(const char *filename, sqlite3 **ppDb, int flags, const char *zVfs) {
-#ifdef SQLITE_OPEN_URI
- return sqlite3_open_v2(filename, ppDb, flags | SQLITE_OPEN_URI, zVfs);
-#else
- return sqlite3_open_v2(filename, ppDb, flags, zVfs);
-#endif
-}
-
-static int
-_sqlite3_bind_text(sqlite3_stmt *stmt, int n, char *p, int np) {
- return sqlite3_bind_text(stmt, n, p, np, SQLITE_TRANSIENT);
-}
-
-static int
-_sqlite3_bind_blob(sqlite3_stmt *stmt, int n, void *p, int np) {
- return sqlite3_bind_blob(stmt, n, p, np, SQLITE_TRANSIENT);
-}
-
-#include <stdio.h>
-#include <stdint.h>
-
-static int
-_sqlite3_exec(sqlite3* db, const char* pcmd, long long* rowid, long long* changes)
-{
- int rv = sqlite3_exec(db, pcmd, 0, 0, 0);
- *rowid = (long long) sqlite3_last_insert_rowid(db);
- *changes = (long long) sqlite3_changes(db);
- return rv;
-}
-
-static int
-_sqlite3_step(sqlite3_stmt* stmt, long long* rowid, long long* changes)
-{
- int rv = sqlite3_step(stmt);
- sqlite3* db = sqlite3_db_handle(stmt);
- *rowid = (long long) sqlite3_last_insert_rowid(db);
- *changes = (long long) sqlite3_changes(db);
- return rv;
-}
-
-void _sqlite3_result_text(sqlite3_context* ctx, const char* s) {
- sqlite3_result_text(ctx, s, -1, &free);
-}
-
-void _sqlite3_result_blob(sqlite3_context* ctx, const void* b, int l) {
- sqlite3_result_blob(ctx, b, l, SQLITE_TRANSIENT);
-}
-
-
-int _sqlite3_create_function(
- sqlite3 *db,
- const char *zFunctionName,
- int nArg,
- int eTextRep,
- uintptr_t pApp,
- void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
- void (*xStep)(sqlite3_context*,int,sqlite3_value**),
- void (*xFinal)(sqlite3_context*)
-) {
- return sqlite3_create_function(db, zFunctionName, nArg, eTextRep, (void*) pApp, xFunc, xStep, xFinal);
-}
-
-void callbackTrampoline(sqlite3_context*, int, sqlite3_value**);
-
-int compareTrampoline(void*, int, char*, int, char*);
-int commitHookTrampoline(void*);
-void rollbackHookTrampoline(void*);
-void updateHookTrampoline(void*, int, char*, char*, sqlite3_int64);
-*/
-import "C"
-import (
- "database/sql"
- "database/sql/driver"
- "errors"
- "fmt"
- "io"
- "net/url"
- "reflect"
- "runtime"
- "strconv"
- "strings"
- "sync"
- "time"
- "unsafe"
-
- "golang.org/x/net/context"
-)
-
-// SQLiteTimestampFormats is timestamp formats understood by both this module
-// and SQLite. The first format in the slice will be used when saving time
-// values into the database. When parsing a string from a timestamp or datetime
-// column, the formats are tried in order.
-var SQLiteTimestampFormats = []string{
- // By default, store timestamps with whatever timezone they come with.
- // When parsed, they will be returned with the same timezone.
- "2006-01-02 15:04:05.999999999-07:00",
- "2006-01-02T15:04:05.999999999-07:00",
- "2006-01-02 15:04:05.999999999",
- "2006-01-02T15:04:05.999999999",
- "2006-01-02 15:04:05",
- "2006-01-02T15:04:05",
- "2006-01-02 15:04",
- "2006-01-02T15:04",
- "2006-01-02",
-}
-
-func init() {
- sql.Register("sqlite3", &SQLiteDriver{})
-}
-
-// Version returns SQLite library version information.
-func Version() (libVersion string, libVersionNumber int, sourceID string) {
- libVersion = C.GoString(C.sqlite3_libversion())
- libVersionNumber = int(C.sqlite3_libversion_number())
- sourceID = C.GoString(C.sqlite3_sourceid())
- return libVersion, libVersionNumber, sourceID
-}
-
-const (
- SQLITE_DELETE = C.SQLITE_DELETE
- SQLITE_INSERT = C.SQLITE_INSERT
- SQLITE_UPDATE = C.SQLITE_UPDATE
-)
-
-// SQLiteDriver implement sql.Driver.
-type SQLiteDriver struct {
- Extensions []string
- ConnectHook func(*SQLiteConn) error
-}
-
-// SQLiteConn implement sql.Conn.
-type SQLiteConn struct {
- mu sync.Mutex
- db *C.sqlite3
- loc *time.Location
- txlock string
- funcs []*functionInfo
- aggregators []*aggInfo
-}
-
-// SQLiteTx implemen sql.Tx.
-type SQLiteTx struct {
- c *SQLiteConn
-}
-
-// SQLiteStmt implement sql.Stmt.
-type SQLiteStmt struct {
- mu sync.Mutex
- c *SQLiteConn
- s *C.sqlite3_stmt
- t string
- closed bool
- cls bool
-}
-
-// SQLiteResult implement sql.Result.
-type SQLiteResult struct {
- id int64
- changes int64
-}
-
-// SQLiteRows implement sql.Rows.
-type SQLiteRows struct {
- s *SQLiteStmt
- nc int
- cols []string
- decltype []string
- cls bool
- closed bool
- done chan struct{}
-}
-
-type functionInfo struct {
- f reflect.Value
- argConverters []callbackArgConverter
- variadicConverter callbackArgConverter
- retConverter callbackRetConverter
-}
-
-func (fi *functionInfo) Call(ctx *C.sqlite3_context, argv []*C.sqlite3_value) {
- args, err := callbackConvertArgs(argv, fi.argConverters, fi.variadicConverter)
- if err != nil {
- callbackError(ctx, err)
- return
- }
-
- ret := fi.f.Call(args)
-
- if len(ret) == 2 && ret[1].Interface() != nil {
- callbackError(ctx, ret[1].Interface().(error))
- return
- }
-
- err = fi.retConverter(ctx, ret[0])
- if err != nil {
- callbackError(ctx, err)
- return
- }
-}
-
-type aggInfo struct {
- constructor reflect.Value
-
- // Active aggregator objects for aggregations in flight. The
- // aggregators are indexed by a counter stored in the aggregation
- // user data space provided by sqlite.
- active map[int64]reflect.Value
- next int64
-
- stepArgConverters []callbackArgConverter
- stepVariadicConverter callbackArgConverter
-
- doneRetConverter callbackRetConverter
-}
-
-func (ai *aggInfo) agg(ctx *C.sqlite3_context) (int64, reflect.Value, error) {
- aggIdx := (*int64)(C.sqlite3_aggregate_context(ctx, C.int(8)))
- if *aggIdx == 0 {
- *aggIdx = ai.next
- ret := ai.constructor.Call(nil)
- if len(ret) == 2 && ret[1].Interface() != nil {
- return 0, reflect.Value{}, ret[1].Interface().(error)
- }
- if ret[0].IsNil() {
- return 0, reflect.Value{}, errors.New("aggregator constructor returned nil state")
- }
- ai.next++
- ai.active[*aggIdx] = ret[0]
- }
- return *aggIdx, ai.active[*aggIdx], nil
-}
-
-func (ai *aggInfo) Step(ctx *C.sqlite3_context, argv []*C.sqlite3_value) {
- _, agg, err := ai.agg(ctx)
- if err != nil {
- callbackError(ctx, err)
- return
- }
-
- args, err := callbackConvertArgs(argv, ai.stepArgConverters, ai.stepVariadicConverter)
- if err != nil {
- callbackError(ctx, err)
- return
- }
-
- ret := agg.MethodByName("Step").Call(args)
- if len(ret) == 1 && ret[0].Interface() != nil {
- callbackError(ctx, ret[0].Interface().(error))
- return
- }
-}
-
-func (ai *aggInfo) Done(ctx *C.sqlite3_context) {
- idx, agg, err := ai.agg(ctx)
- if err != nil {
- callbackError(ctx, err)
- return
- }
- defer func() { delete(ai.active, idx) }()
-
- ret := agg.MethodByName("Done").Call(nil)
- if len(ret) == 2 && ret[1].Interface() != nil {
- callbackError(ctx, ret[1].Interface().(error))
- return
- }
-
- err = ai.doneRetConverter(ctx, ret[0])
- if err != nil {
- callbackError(ctx, err)
- return
- }
-}
-
-// Commit transaction.
-func (tx *SQLiteTx) Commit() error {
- _, err := tx.c.exec(context.Background(), "COMMIT", nil)
- if err != nil { // && err.(Error).Code == C.SQLITE_BUSY {
- // sqlite3 will leave the transaction open in this scenario.
- // However, database/sql considers the transaction complete once we
- // return from Commit() - we must clean up to honour its semantics.
- tx.c.exec(context.Background(), "ROLLBACK", nil)
- }
- return err
-}
-
-// Rollback transaction.
-func (tx *SQLiteTx) Rollback() error {
- _, err := tx.c.exec(context.Background(), "ROLLBACK", nil)
- return err
-}
-
-// RegisterCollation makes a Go function available as a collation.
-//
-// cmp receives two UTF-8 strings, a and b. The result should be 0 if
-// a==b, -1 if a < b, and +1 if a > b.
-//
-// cmp must always return the same result given the same
-// inputs. Additionally, it must have the following properties for all
-// strings A, B and C: if A==B then B==A; if A==B and B==C then A==C;
-// if A<B then B>A; if A<B and B<C then A<C.
-//
-// If cmp does not obey these constraints, sqlite3's behavior is
-// undefined when the collation is used.
-func (c *SQLiteConn) RegisterCollation(name string, cmp func(string, string) int) error {
- handle := newHandle(c, cmp)
- cname := C.CString(name)
- defer C.free(unsafe.Pointer(cname))
- rv := C.sqlite3_create_collation(c.db, cname, C.SQLITE_UTF8, unsafe.Pointer(handle), (*[0]byte)(unsafe.Pointer(C.compareTrampoline)))
- if rv != C.SQLITE_OK {
- return c.lastError()
- }
- return nil
-}
-
-// RegisterCommitHook sets the commit hook for a connection.
-//
-// If the callback returns non-zero the transaction will become a rollback.
-//
-// If there is an existing commit hook for this connection, it will be
-// removed. If callback is nil the existing hook (if any) will be removed
-// without creating a new one.
-func (c *SQLiteConn) RegisterCommitHook(callback func() int) {
- if callback == nil {
- C.sqlite3_commit_hook(c.db, nil, nil)
- } else {
- C.sqlite3_commit_hook(c.db, (*[0]byte)(unsafe.Pointer(C.commitHookTrampoline)), unsafe.Pointer(newHandle(c, callback)))
- }
-}
-
-// RegisterRollbackHook sets the rollback hook for a connection.
-//
-// If there is an existing rollback hook for this connection, it will be
-// removed. If callback is nil the existing hook (if any) will be removed
-// without creating a new one.
-func (c *SQLiteConn) RegisterRollbackHook(callback func()) {
- if callback == nil {
- C.sqlite3_rollback_hook(c.db, nil, nil)
- } else {
- C.sqlite3_rollback_hook(c.db, (*[0]byte)(unsafe.Pointer(C.rollbackHookTrampoline)), unsafe.Pointer(newHandle(c, callback)))
- }
-}
-
-// RegisterUpdateHook sets the update hook for a connection.
-//
-// The parameters to the callback are the operation (one of the constants
-// SQLITE_INSERT, SQLITE_DELETE, or SQLITE_UPDATE), the database name, the
-// table name, and the rowid.
-//
-// If there is an existing update hook for this connection, it will be
-// removed. If callback is nil the existing hook (if any) will be removed
-// without creating a new one.
-func (c *SQLiteConn) RegisterUpdateHook(callback func(int, string, string, int64)) {
- if callback == nil {
- C.sqlite3_update_hook(c.db, nil, nil)
- } else {
- C.sqlite3_update_hook(c.db, (*[0]byte)(unsafe.Pointer(C.updateHookTrampoline)), unsafe.Pointer(newHandle(c, callback)))
- }
-}
-
-// RegisterFunc makes a Go function available as a SQLite function.
-//
-// The Go function can have arguments of the following types: any
-// numeric type except complex, bool, []byte, string and
-// interface{}. interface{} arguments are given the direct translation
-// of the SQLite data type: int64 for INTEGER, float64 for FLOAT,
-// []byte for BLOB, string for TEXT.
-//
-// The function can additionally be variadic, as long as the type of
-// the variadic argument is one of the above.
-//
-// If pure is true. SQLite will assume that the function's return
-// value depends only on its inputs, and make more aggressive
-// optimizations in its queries.
-//
-// See _example/go_custom_funcs for a detailed example.
-func (c *SQLiteConn) RegisterFunc(name string, impl interface{}, pure bool) error {
- var fi functionInfo
- fi.f = reflect.ValueOf(impl)
- t := fi.f.Type()
- if t.Kind() != reflect.Func {
- return errors.New("Non-function passed to RegisterFunc")
- }
- if t.NumOut() != 1 && t.NumOut() != 2 {
- return errors.New("SQLite functions must return 1 or 2 values")
- }
- if t.NumOut() == 2 && !t.Out(1).Implements(reflect.TypeOf((*error)(nil)).Elem()) {
- return errors.New("Second return value of SQLite function must be error")
- }
-
- numArgs := t.NumIn()
- if t.IsVariadic() {
- numArgs--
- }
-
- for i := 0; i < numArgs; i++ {
- conv, err := callbackArg(t.In(i))
- if err != nil {
- return err
- }
- fi.argConverters = append(fi.argConverters, conv)
- }
-
- if t.IsVariadic() {
- conv, err := callbackArg(t.In(numArgs).Elem())
- if err != nil {
- return err
- }
- fi.variadicConverter = conv
- // Pass -1 to sqlite so that it allows any number of
- // arguments. The call helper verifies that the minimum number
- // of arguments is present for variadic functions.
- numArgs = -1
- }
-
- conv, err := callbackRet(t.Out(0))
- if err != nil {
- return err
- }
- fi.retConverter = conv
-
- // fi must outlast the database connection, or we'll have dangling pointers.
- c.funcs = append(c.funcs, &fi)
-
- cname := C.CString(name)
- defer C.free(unsafe.Pointer(cname))
- opts := C.SQLITE_UTF8
- if pure {
- opts |= C.SQLITE_DETERMINISTIC
- }
- rv := sqlite3CreateFunction(c.db, cname, C.int(numArgs), C.int(opts), newHandle(c, &fi), C.callbackTrampoline, nil, nil)
- if rv != C.SQLITE_OK {
- return c.lastError()
- }
- return nil
-}
-
-func sqlite3CreateFunction(db *C.sqlite3, zFunctionName *C.char, nArg C.int, eTextRep C.int, pApp uintptr, xFunc unsafe.Pointer, xStep unsafe.Pointer, xFinal unsafe.Pointer) C.int {
- return C._sqlite3_create_function(db, zFunctionName, nArg, eTextRep, C.uintptr_t(pApp), (*[0]byte)(unsafe.Pointer(xFunc)), (*[0]byte)(unsafe.Pointer(xStep)), (*[0]byte)(unsafe.Pointer(xFinal)))
-}
-
-// AutoCommit return which currently auto commit or not.
-func (c *SQLiteConn) AutoCommit() bool {
- return int(C.sqlite3_get_autocommit(c.db)) != 0
-}
-
-func (c *SQLiteConn) lastError() error {
- return lastError(c.db)
-}
-
-func lastError(db *C.sqlite3) error {
- rv := C.sqlite3_errcode(db)
- if rv == C.SQLITE_OK {
- return nil
- }
- return Error{
- Code: ErrNo(rv),
- ExtendedCode: ErrNoExtended(C.sqlite3_extended_errcode(db)),
- err: C.GoString(C.sqlite3_errmsg(db)),
- }
-}
-
-// Exec implements Execer.
-func (c *SQLiteConn) Exec(query string, args []driver.Value) (driver.Result, error) {
- list := make([]namedValue, len(args))
- for i, v := range args {
- list[i] = namedValue{
- Ordinal: i + 1,
- Value: v,
- }
- }
- return c.exec(context.Background(), query, list)
-}
-
-func (c *SQLiteConn) exec(ctx context.Context, query string, args []namedValue) (driver.Result, error) {
- start := 0
- for {
- s, err := c.prepare(ctx, query)
- if err != nil {
- return nil, err
- }
- var res driver.Result
- if s.(*SQLiteStmt).s != nil {
- na := s.NumInput()
- if len(args) < na {
- s.Close()
- return nil, fmt.Errorf("not enough args to execute query: want %d got %d", na, len(args))
- }
- for i := 0; i < na; i++ {
- args[i].Ordinal -= start
- }
- res, err = s.(*SQLiteStmt).exec(ctx, args[:na])
- if err != nil && err != driver.ErrSkip {
- s.Close()
- return nil, err
- }
- args = args[na:]
- start += na
- }
- tail := s.(*SQLiteStmt).t
- s.Close()
- if tail == "" {
- return res, nil
- }
- query = tail
- }
-}
-
-type namedValue struct {
- Name string
- Ordinal int
- Value driver.Value
-}
-
-// Query implements Queryer.
-func (c *SQLiteConn) Query(query string, args []driver.Value) (driver.Rows, error) {
- list := make([]namedValue, len(args))
- for i, v := range args {
- list[i] = namedValue{
- Ordinal: i + 1,
- Value: v,
- }
- }
- return c.query(context.Background(), query, list)
-}
-
-func (c *SQLiteConn) query(ctx context.Context, query string, args []namedValue) (driver.Rows, error) {
- start := 0
- for {
- s, err := c.prepare(ctx, query)
- if err != nil {
- return nil, err
- }
- s.(*SQLiteStmt).cls = true
- na := s.NumInput()
- if len(args) < na {
- return nil, fmt.Errorf("not enough args to execute query: want %d got %d", na, len(args))
- }
- for i := 0; i < na; i++ {
- args[i].Ordinal -= start
- }
- rows, err := s.(*SQLiteStmt).query(ctx, args[:na])
- if err != nil && err != driver.ErrSkip {
- s.Close()
- return rows, err
- }
- args = args[na:]
- start += na
- tail := s.(*SQLiteStmt).t
- if tail == "" {
- return rows, nil
- }
- rows.Close()
- s.Close()
- query = tail
- }
-}
-
-// Begin transaction.
-func (c *SQLiteConn) Begin() (driver.Tx, error) {
- return c.begin(context.Background())
-}
-
-func (c *SQLiteConn) begin(ctx context.Context) (driver.Tx, error) {
- if _, err := c.exec(ctx, c.txlock, nil); err != nil {
- return nil, err
- }
- return &SQLiteTx{c}, nil
-}
-
-func errorString(err Error) string {
- return C.GoString(C.sqlite3_errstr(C.int(err.Code)))
-}
-
-// Open database and return a new connection.
-// You can specify a DSN string using a URI as the filename.
-// test.db
-// file:test.db?cache=shared&mode=memory
-// :memory:
-// file::memory:
-// go-sqlite3 adds the following query parameters to those used by SQLite:
-// _loc=XXX
-// Specify location of time format. It's possible to specify "auto".
-// _busy_timeout=XXX
-// Specify value for sqlite3_busy_timeout.
-// _txlock=XXX
-// Specify locking behavior for transactions. XXX can be "immediate",
-// "deferred", "exclusive".
-// _foreign_keys=X
-// Enable or disable enforcement of foreign keys. X can be 1 or 0.
-// _recursive_triggers=X
-// Enable or disable recursive triggers. X can be 1 or 0.
-func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
- if C.sqlite3_threadsafe() == 0 {
- return nil, errors.New("sqlite library was not compiled for thread-safe operation")
- }
-
- var loc *time.Location
- txlock := "BEGIN"
- busyTimeout := 5000
- foreignKeys := -1
- recursiveTriggers := -1
- pos := strings.IndexRune(dsn, '?')
- if pos >= 1 {
- params, err := url.ParseQuery(dsn[pos+1:])
- if err != nil {
- return nil, err
- }
-
- // _loc
- if val := params.Get("_loc"); val != "" {
- if val == "auto" {
- loc = time.Local
- } else {
- loc, err = time.LoadLocation(val)
- if err != nil {
- return nil, fmt.Errorf("Invalid _loc: %v: %v", val, err)
- }
- }
- }
-
- // _busy_timeout
- if val := params.Get("_busy_timeout"); val != "" {
- iv, err := strconv.ParseInt(val, 10, 64)
- if err != nil {
- return nil, fmt.Errorf("Invalid _busy_timeout: %v: %v", val, err)
- }
- busyTimeout = int(iv)
- }
-
- // _txlock
- if val := params.Get("_txlock"); val != "" {
- switch val {
- case "immediate":
- txlock = "BEGIN IMMEDIATE"
- case "exclusive":
- txlock = "BEGIN EXCLUSIVE"
- case "deferred":
- txlock = "BEGIN"
- default:
- return nil, fmt.Errorf("Invalid _txlock: %v", val)
- }
- }
-
- // _foreign_keys
- if val := params.Get("_foreign_keys"); val != "" {
- switch val {
- case "1":
- foreignKeys = 1
- case "0":
- foreignKeys = 0
- default:
- return nil, fmt.Errorf("Invalid _foreign_keys: %v", val)
- }
- }
-
- // _recursive_triggers
- if val := params.Get("_recursive_triggers"); val != "" {
- switch val {
- case "1":
- recursiveTriggers = 1
- case "0":
- recursiveTriggers = 0
- default:
- return nil, fmt.Errorf("Invalid _recursive_triggers: %v", val)
- }
- }
-
- if !strings.HasPrefix(dsn, "file:") {
- dsn = dsn[:pos]
- }
- }
-
- var db *C.sqlite3
- name := C.CString(dsn)
- defer C.free(unsafe.Pointer(name))
- rv := C._sqlite3_open_v2(name, &db,
- C.SQLITE_OPEN_FULLMUTEX|
- C.SQLITE_OPEN_READWRITE|
- C.SQLITE_OPEN_CREATE,
- nil)
- if rv != 0 {
- return nil, Error{Code: ErrNo(rv)}
- }
- if db == nil {
- return nil, errors.New("sqlite succeeded without returning a database")
- }
-
- rv = C.sqlite3_busy_timeout(db, C.int(busyTimeout))
- if rv != C.SQLITE_OK {
- C.sqlite3_close_v2(db)
- return nil, Error{Code: ErrNo(rv)}
- }
-
- exec := func(s string) error {
- cs := C.CString(s)
- rv := C.sqlite3_exec(db, cs, nil, nil, nil)
- C.free(unsafe.Pointer(cs))
- if rv != C.SQLITE_OK {
- return lastError(db)
- }
- return nil
- }
- if foreignKeys == 0 {
- if err := exec("PRAGMA foreign_keys = OFF;"); err != nil {
- C.sqlite3_close_v2(db)
- return nil, err
- }
- } else if foreignKeys == 1 {
- if err := exec("PRAGMA foreign_keys = ON;"); err != nil {
- C.sqlite3_close_v2(db)
- return nil, err
- }
- }
- if recursiveTriggers == 0 {
- if err := exec("PRAGMA recursive_triggers = OFF;"); err != nil {
- C.sqlite3_close_v2(db)
- return nil, err
- }
- } else if recursiveTriggers == 1 {
- if err := exec("PRAGMA recursive_triggers = ON;"); err != nil {
- C.sqlite3_close_v2(db)
- return nil, err
- }
- }
-
- conn := &SQLiteConn{db: db, loc: loc, txlock: txlock}
-
- if len(d.Extensions) > 0 {
- if err := conn.loadExtensions(d.Extensions); err != nil {
- conn.Close()
- return nil, err
- }
- }
-
- if d.ConnectHook != nil {
- if err := d.ConnectHook(conn); err != nil {
- conn.Close()
- return nil, err
- }
- }
- runtime.SetFinalizer(conn, (*SQLiteConn).Close)
- return conn, nil
-}
-
-// Close the connection.
-func (c *SQLiteConn) Close() error {
- rv := C.sqlite3_close_v2(c.db)
- if rv != C.SQLITE_OK {
- return c.lastError()
- }
- deleteHandles(c)
- c.mu.Lock()
- c.db = nil
- c.mu.Unlock()
- runtime.SetFinalizer(c, nil)
- return nil
-}
-
-func (c *SQLiteConn) dbConnOpen() bool {
- if c == nil {
- return false
- }
- c.mu.Lock()
- defer c.mu.Unlock()
- return c.db != nil
-}
-
-// Prepare the query string. Return a new statement.
-func (c *SQLiteConn) Prepare(query string) (driver.Stmt, error) {
- return c.prepare(context.Background(), query)
-}
-
-func (c *SQLiteConn) prepare(ctx context.Context, query string) (driver.Stmt, error) {
- pquery := C.CString(query)
- defer C.free(unsafe.Pointer(pquery))
- var s *C.sqlite3_stmt
- var tail *C.char
- rv := C.sqlite3_prepare_v2(c.db, pquery, -1, &s, &tail)
- if rv != C.SQLITE_OK {
- return nil, c.lastError()
- }
- var t string
- if tail != nil && *tail != '\000' {
- t = strings.TrimSpace(C.GoString(tail))
- }
- ss := &SQLiteStmt{c: c, s: s, t: t}
- runtime.SetFinalizer(ss, (*SQLiteStmt).Close)
- return ss, nil
-}
-
-// Close the statement.
-func (s *SQLiteStmt) Close() error {
- s.mu.Lock()
- defer s.mu.Unlock()
- if s.closed {
- return nil
- }
- s.closed = true
- if !s.c.dbConnOpen() {
- return errors.New("sqlite statement with already closed database connection")
- }
- rv := C.sqlite3_finalize(s.s)
- s.s = nil
- if rv != C.SQLITE_OK {
- return s.c.lastError()
- }
- runtime.SetFinalizer(s, nil)
- return nil
-}
-
-// NumInput return a number of parameters.
-func (s *SQLiteStmt) NumInput() int {
- return int(C.sqlite3_bind_parameter_count(s.s))
-}
-
-type bindArg struct {
- n int
- v driver.Value
-}
-
-var placeHolder = []byte{0}
-
-func (s *SQLiteStmt) bind(args []namedValue) error {
- rv := C.sqlite3_reset(s.s)
- if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
- return s.c.lastError()
- }
-
- for i, v := range args {
- if v.Name != "" {
- cname := C.CString(":" + v.Name)
- args[i].Ordinal = int(C.sqlite3_bind_parameter_index(s.s, cname))
- C.free(unsafe.Pointer(cname))
- }
- }
-
- for _, arg := range args {
- n := C.int(arg.Ordinal)
- switch v := arg.Value.(type) {
- case nil:
- rv = C.sqlite3_bind_null(s.s, n)
- case string:
- if len(v) == 0 {
- rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&placeHolder[0])), C.int(0))
- } else {
- b := []byte(v)
- rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
- }
- case int64:
- rv = C.sqlite3_bind_int64(s.s, n, C.sqlite3_int64(v))
- case bool:
- if bool(v) {
- rv = C.sqlite3_bind_int(s.s, n, 1)
- } else {
- rv = C.sqlite3_bind_int(s.s, n, 0)
- }
- case float64:
- rv = C.sqlite3_bind_double(s.s, n, C.double(v))
- case []byte:
- ln := len(v)
- if ln == 0 {
- v = placeHolder
- }
- rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(&v[0]), C.int(ln))
- case time.Time:
- b := []byte(v.Format(SQLiteTimestampFormats[0]))
- rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
- }
- if rv != C.SQLITE_OK {
- return s.c.lastError()
- }
- }
- return nil
-}
-
-// Query the statement with arguments. Return records.
-func (s *SQLiteStmt) Query(args []driver.Value) (driver.Rows, error) {
- list := make([]namedValue, len(args))
- for i, v := range args {
- list[i] = namedValue{
- Ordinal: i + 1,
- Value: v,
- }
- }
- return s.query(context.Background(), list)
-}
-
-func (s *SQLiteStmt) query(ctx context.Context, args []namedValue) (driver.Rows, error) {
- if err := s.bind(args); err != nil {
- return nil, err
- }
-
- rows := &SQLiteRows{
- s: s,
- nc: int(C.sqlite3_column_count(s.s)),
- cols: nil,
- decltype: nil,
- cls: s.cls,
- closed: false,
- done: make(chan struct{}),
- }
-
- go func(db *C.sqlite3) {
- select {
- case <-ctx.Done():
- select {
- case <-rows.done:
- default:
- C.sqlite3_interrupt(db)
- rows.Close()
- }
- case <-rows.done:
- }
- }(s.c.db)
-
- return rows, nil
-}
-
-// LastInsertId teturn last inserted ID.
-func (r *SQLiteResult) LastInsertId() (int64, error) {
- return r.id, nil
-}
-
-// RowsAffected return how many rows affected.
-func (r *SQLiteResult) RowsAffected() (int64, error) {
- return r.changes, nil
-}
-
-// Exec execute the statement with arguments. Return result object.
-func (s *SQLiteStmt) Exec(args []driver.Value) (driver.Result, error) {
- list := make([]namedValue, len(args))
- for i, v := range args {
- list[i] = namedValue{
- Ordinal: i + 1,
- Value: v,
- }
- }
- return s.exec(context.Background(), list)
-}
-
-func (s *SQLiteStmt) exec(ctx context.Context, args []namedValue) (driver.Result, error) {
- if err := s.bind(args); err != nil {
- C.sqlite3_reset(s.s)
- C.sqlite3_clear_bindings(s.s)
- return nil, err
- }
-
- done := make(chan struct{})
- defer close(done)
- go func(db *C.sqlite3) {
- select {
- case <-ctx.Done():
- C.sqlite3_interrupt(db)
- case <-done:
- }
- }(s.c.db)
-
- var rowid, changes C.longlong
- rv := C._sqlite3_step(s.s, &rowid, &changes)
- if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
- err := s.c.lastError()
- C.sqlite3_reset(s.s)
- C.sqlite3_clear_bindings(s.s)
- return nil, err
- }
-
- return &SQLiteResult{id: int64(rowid), changes: int64(changes)}, nil
-}
-
-// Close the rows.
-func (rc *SQLiteRows) Close() error {
- rc.s.mu.Lock()
- if rc.s.closed || rc.closed {
- rc.s.mu.Unlock()
- return nil
- }
- rc.closed = true
- if rc.done != nil {
- close(rc.done)
- }
- if rc.cls {
- rc.s.mu.Unlock()
- return rc.s.Close()
- }
- rv := C.sqlite3_reset(rc.s.s)
- if rv != C.SQLITE_OK {
- rc.s.mu.Unlock()
- return rc.s.c.lastError()
- }
- rc.s.mu.Unlock()
- return nil
-}
-
-// Columns return column names.
-func (rc *SQLiteRows) Columns() []string {
- rc.s.mu.Lock()
- defer rc.s.mu.Unlock()
- if rc.s.s != nil && rc.nc != len(rc.cols) {
- rc.cols = make([]string, rc.nc)
- for i := 0; i < rc.nc; i++ {
- rc.cols[i] = C.GoString(C.sqlite3_column_name(rc.s.s, C.int(i)))
- }
- }
- return rc.cols
-}
-
-func (rc *SQLiteRows) declTypes() []string {
- if rc.s.s != nil && rc.decltype == nil {
- rc.decltype = make([]string, rc.nc)
- for i := 0; i < rc.nc; i++ {
- rc.decltype[i] = strings.ToLower(C.GoString(C.sqlite3_column_decltype(rc.s.s, C.int(i))))
- }
- }
- return rc.decltype
-}
-
-// DeclTypes return column types.
-func (rc *SQLiteRows) DeclTypes() []string {
- rc.s.mu.Lock()
- defer rc.s.mu.Unlock()
- return rc.declTypes()
-}
-
-// Next move cursor to next.
-func (rc *SQLiteRows) Next(dest []driver.Value) error {
- if rc.s.closed {
- return io.EOF
- }
- rc.s.mu.Lock()
- defer rc.s.mu.Unlock()
- rv := C.sqlite3_step(rc.s.s)
- if rv == C.SQLITE_DONE {
- return io.EOF
- }
- if rv != C.SQLITE_ROW {
- rv = C.sqlite3_reset(rc.s.s)
- if rv != C.SQLITE_OK {
- return rc.s.c.lastError()
- }
- return nil
- }
-
- rc.declTypes()
-
- for i := range dest {
- switch C.sqlite3_column_type(rc.s.s, C.int(i)) {
- case C.SQLITE_INTEGER:
- val := int64(C.sqlite3_column_int64(rc.s.s, C.int(i)))
- switch rc.decltype[i] {
- case "timestamp", "datetime", "date":
- var t time.Time
- // Assume a millisecond unix timestamp if it's 13 digits -- too
- // large to be a reasonable timestamp in seconds.
- if val > 1e12 || val < -1e12 {
- val *= int64(time.Millisecond) // convert ms to nsec
- t = time.Unix(0, val)
- } else {
- t = time.Unix(val, 0)
- }
- t = t.UTC()
- if rc.s.c.loc != nil {
- t = t.In(rc.s.c.loc)
- }
- dest[i] = t
- case "boolean":
- dest[i] = val > 0
- default:
- dest[i] = val
- }
- case C.SQLITE_FLOAT:
- dest[i] = float64(C.sqlite3_column_double(rc.s.s, C.int(i)))
- case C.SQLITE_BLOB:
- p := C.sqlite3_column_blob(rc.s.s, C.int(i))
- if p == nil {
- dest[i] = nil
- continue
- }
- n := int(C.sqlite3_column_bytes(rc.s.s, C.int(i)))
- switch dest[i].(type) {
- case sql.RawBytes:
- dest[i] = (*[1 << 30]byte)(unsafe.Pointer(p))[0:n]
- default:
- slice := make([]byte, n)
- copy(slice[:], (*[1 << 30]byte)(unsafe.Pointer(p))[0:n])
- dest[i] = slice
- }
- case C.SQLITE_NULL:
- dest[i] = nil
- case C.SQLITE_TEXT:
- var err error
- var timeVal time.Time
-
- n := int(C.sqlite3_column_bytes(rc.s.s, C.int(i)))
- s := C.GoStringN((*C.char)(unsafe.Pointer(C.sqlite3_column_text(rc.s.s, C.int(i)))), C.int(n))
-
- switch rc.decltype[i] {
- case "timestamp", "datetime", "date":
- var t time.Time
- s = strings.TrimSuffix(s, "Z")
- for _, format := range SQLiteTimestampFormats {
- if timeVal, err = time.ParseInLocation(format, s, time.UTC); err == nil {
- t = timeVal
- break
- }
- }
- if err != nil {
- // The column is a time value, so return the zero time on parse failure.
- t = time.Time{}
- }
- if rc.s.c.loc != nil {
- t = t.In(rc.s.c.loc)
- }
- dest[i] = t
- default:
- dest[i] = []byte(s)
- }
-
- }
- }
- return nil
-}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-15 20:04:23 +0000