foster/forgejo
1
0
Fork 0
mirror of https://codeberg.org/forgejo/forgejo.git synced 2024-12-22 12:54:53 -05:00
Code Issues Wiki Activity

vendor: update sqlite to fix "database is locked" errors (#2116)

Browse source 
closes #2040

upstream commit: acfa601240
This commit is contained in:
Andrey Nering 2017-07-06 03:43:30 -03:00 committed by Lunny Xiao
parent a52cd59727
commit 2ef33b5338
18 changed files with 10627 additions and 5910 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
vendor/github.com/mattn/go-sqlite3/README.md generated vendored
View file

@ -1,9 +1,10 @@
go-sqlite3
==========
[![GoDoc Reference](https://godoc.org/github.com/mattn/go-sqlite3?status.svg)](http://godoc.org/github.com/mattn/go-sqlite3)
[![Build Status](https://travis-ci.org/mattn/go-sqlite3.svg?branch=master)](https://travis-ci.org/mattn/go-sqlite3)
[![Coverage Status](https://coveralls.io/repos/mattn/go-sqlite3/badge.svg?branch=master)](https://coveralls.io/r/mattn/go-sqlite3?branch=master)
[![GoDoc](https://godoc.org/github.com/mattn/go-sqlite3?status.svg)](http://godoc.org/github.com/mattn/go-sqlite3)
[![Go Report Card](https://goreportcard.com/badge/github.com/mattn/go-sqlite3)](https://goreportcard.com/report/github.com/mattn/go-sqlite3)
Description
-----------
@ -45,25 +46,40 @@ FAQ
Use `go build --tags "icu"`
Available extensions: `json1`, `fts5`, `icu`
* Can't build go-sqlite3 on windows 64bit.
> Probably, you are using go 1.0, go1.0 has a problem when it comes to compiling/linking on windows 64bit.
> See: https://github.com/mattn/go-sqlite3/issues/27
> See: [#27](https://github.com/mattn/go-sqlite3/issues/27)
* Getting insert error while query is opened.
> You can pass some arguments into the connection string, for example, a URI.
> See: https://github.com/mattn/go-sqlite3/issues/39
> See: [#39](https://github.com/mattn/go-sqlite3/issues/39)
* Do you want to cross compile? mingw on Linux or Mac?
> See: https://github.com/mattn/go-sqlite3/issues/106
> See: [#106](https://github.com/mattn/go-sqlite3/issues/106)
> See also: http://www.limitlessfx.com/cross-compile-golang-app-for-windows-from-linux.html
* Want to get time.Time with current locale
Use `loc=auto` in SQLite3 filename schema like `file:foo.db?loc=auto`.
* Can I use this in multiple routines concurrently?
Yes for readonly. But, No for writable. See [#50](https://github.com/mattn/go-sqlite3/issues/50), [#51](https://github.com/mattn/go-sqlite3/issues/51), [#209](https://github.com/mattn/go-sqlite3/issues/209).
* Why is it racy if I use a `sql.Open("sqlite3", ":memory:")` database?
Each connection to :memory: opens a brand new in-memory sql database, so if
the stdlib's sql engine happens to open another connection and you've only
specified ":memory:", that connection will see a brand new database. A
workaround is to use "file::memory:?mode=memory&cache=shared". Every
connection to this string will point to the same in-memory database. See
[#204](https://github.com/mattn/go-sqlite3/issues/204) for more info.
License
-------

14
vendor/github.com/mattn/go-sqlite3/backup.go generated vendored
View file

@ -19,10 +19,12 @@ import (
"unsafe"
)
// SQLiteBackup implement interface of Backup.
type SQLiteBackup struct {
b *C.sqlite3_backup
}
// Backup make backup from src to dest.
func (c *SQLiteConn) Backup(dest string, conn *SQLiteConn, src string) (*SQLiteBackup, error) {
destptr := C.CString(dest)
defer C.free(unsafe.Pointer(destptr))
@ -37,10 +39,10 @@ func (c *SQLiteConn) Backup(dest string, conn *SQLiteConn, src string) (*SQLiteB
return nil, c.lastError()
}
// Backs up for one step. Calls the underlying `sqlite3_backup_step` function.
// This function returns a boolean indicating if the backup is done and
// an error signalling any other error. Done is returned if the underlying C
// function returns SQLITE_DONE (Code 101)
// Step to backs up for one step. Calls the underlying `sqlite3_backup_step`
// function. This function returns a boolean indicating if the backup is done
// and an error signalling any other error. Done is returned if the underlying
// C function returns SQLITE_DONE (Code 101)
func (b *SQLiteBackup) Step(p int) (bool, error) {
ret := C.sqlite3_backup_step(b.b, C.int(p))
if ret == C.SQLITE_DONE {
@ -51,18 +53,22 @@ func (b *SQLiteBackup) Step(p int) (bool, error) {
return false, nil
}
// Remaining return whether have the rest for backup.
func (b *SQLiteBackup) Remaining() int {
return int(C.sqlite3_backup_remaining(b.b))
}
// PageCount return count of pages.
func (b *SQLiteBackup) PageCount() int {
return int(C.sqlite3_backup_pagecount(b.b))
}
// Finish close backup.
func (b *SQLiteBackup) Finish() error {
return b.Close()
}
// Close close backup.
func (b *SQLiteBackup) Close() error {
ret := C.sqlite3_backup_finish(b.b)

4
vendor/github.com/mattn/go-sqlite3/callback.go generated vendored
View file

@ -40,8 +40,8 @@ func callbackTrampoline(ctx *C.sqlite3_context, argc int, argv **C.sqlite3_value
}
//export stepTrampoline
func stepTrampoline(ctx *C.sqlite3_context, argc int, argv **C.sqlite3_value) {
args := (*[(math.MaxInt32 - 1) / unsafe.Sizeof((*C.sqlite3_value)(nil))]*C.sqlite3_value)(unsafe.Pointer(argv))[:argc:argc]
func stepTrampoline(ctx *C.sqlite3_context, argc C.int, argv **C.sqlite3_value) {
args := (*[(math.MaxInt32 - 1) / unsafe.Sizeof((*C.sqlite3_value)(nil))]*C.sqlite3_value)(unsafe.Pointer(argv))[:int(argc):int(argc)]
ai := lookupHandle(uintptr(C.sqlite3_user_data(ctx))).(*aggInfo)
ai.Step(ctx, args)
}

2
vendor/github.com/mattn/go-sqlite3/doc.go generated vendored
View file

@ -110,5 +110,3 @@ See the documentation of RegisterFunc for more details.
*/
package sqlite3
import "C"

9
vendor/github.com/mattn/go-sqlite3/error.go generated vendored
View file

@ -7,12 +7,16 @@ package sqlite3
import "C"
// ErrNo inherit errno.
type ErrNo int
// ErrNoMask is mask code.
const ErrNoMask C.int = 0xff
// ErrNoExtended is extended errno.
type ErrNoExtended int
// Error implement sqlite error code.
type Error struct {
Code ErrNo /* The error code returned by SQLite */
ExtendedCode ErrNoExtended /* The extended error code returned by SQLite */
@ -52,14 +56,17 @@ var (
ErrWarning = ErrNo(28) /* Warnings from sqlite3_log() */
)
// Error return error message from errno.
func (err ErrNo) Error() string {
return Error{Code: err}.Error()
}
// Extend return extended errno.
func (err ErrNo) Extend(by int) ErrNoExtended {
return ErrNoExtended(int(err) | (by << 8))
}
// Error return error message that is extended code.
func (err ErrNoExtended) Error() string {
return Error{Code: ErrNo(C.int(err) & ErrNoMask), ExtendedCode: err}.Error()
}
@ -121,7 +128,7 @@ var (
ErrConstraintTrigger = ErrConstraint.Extend(7)
ErrConstraintUnique = ErrConstraint.Extend(8)
ErrConstraintVTab = ErrConstraint.Extend(9)
ErrConstraintRowId = ErrConstraint.Extend(10)
ErrConstraintRowID = ErrConstraint.Extend(10)
ErrNoticeRecoverWAL = ErrNotice.Extend(1)
ErrNoticeRecoverRollback = ErrNotice.Extend(2)
ErrWarningAutoIndex = ErrWarning.Extend(1)

13011
vendor/github.com/mattn/go-sqlite3/sqlite3-binding.c generated vendored
View file

File diff suppressed because it is too large Load diff

776
vendor/github.com/mattn/go-sqlite3/sqlite3-binding.h generated vendored
View file

File diff suppressed because it is too large Load diff

332
vendor/github.com/mattn/go-sqlite3/sqlite3.go generated vendored
View file

@ -7,9 +7,10 @@ package sqlite3
/*
#cgo CFLAGS: -std=gnu99
#cgo CFLAGS: -DSQLITE_ENABLE_RTREE -DSQLITE_THREADSAFE
#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>
@ -112,14 +113,17 @@ import (
"runtime"
"strconv"
"strings"
"sync"
"time"
"unsafe"
"golang.org/x/net/context"
)
// 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.
// 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.
@ -139,21 +143,22 @@ func init() {
}
// Version returns SQLite library version information.
func Version() (libVersion string, libVersionNumber int, sourceId string) {
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
sourceID = C.GoString(C.sqlite3_sourceid())
return libVersion, libVersionNumber, sourceID
}
// Driver struct.
// SQLiteDriver implement sql.Driver.
type SQLiteDriver struct {
Extensions []string
ConnectHook func(*SQLiteConn) error
}
// Conn struct.
// SQLiteConn implement sql.Conn.
type SQLiteConn struct {
dbMu sync.Mutex
db *C.sqlite3
loc *time.Location
txlock string
@ -161,35 +166,34 @@ type SQLiteConn struct {
aggregators []*aggInfo
}
// Tx struct.
// SQLiteTx implemen sql.Tx.
type SQLiteTx struct {
c *SQLiteConn
}
// Stmt struct.
// SQLiteStmt implement sql.Stmt.
type SQLiteStmt struct {
c *SQLiteConn
s *C.sqlite3_stmt
nv int
nn []string
t string
closed bool
cls bool
}
// Result struct.
// SQLiteResult implement sql.Result.
type SQLiteResult struct {
id int64
changes int64
}
// Rows struct.
// SQLiteRows implement sql.Rows.
type SQLiteRows struct {
s *SQLiteStmt
nc int
cols []string
decltype []string
cls bool
done chan struct{}
}
type functionInfo struct {
@ -295,19 +299,19 @@ func (ai *aggInfo) Done(ctx *C.sqlite3_context) {
// Commit transaction.
func (tx *SQLiteTx) Commit() error {
_, err := tx.c.exec("COMMIT")
_, 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("ROLLBACK")
tx.c.exec(context.Background(), "ROLLBACK", nil)
}
return err
}
// Rollback transaction.
func (tx *SQLiteTx) Rollback() error {
_, err := tx.c.exec("ROLLBACK")
_, err := tx.c.exec(context.Background(), "ROLLBACK", nil)
return err
}
@ -381,34 +385,54 @@ func (c *SQLiteConn) RegisterFunc(name string, impl interface{}, pure bool) erro
if pure {
opts |= C.SQLITE_DETERMINISTIC
}
rv := C._sqlite3_create_function(c.db, cname, C.int(numArgs), C.int(opts), C.uintptr_t(newHandle(c, &fi)), (*[0]byte)(unsafe.Pointer(C.callbackTrampoline)), nil, nil)
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 {
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(C.sqlite3_errcode(c.db)),
ExtendedCode: ErrNoExtended(C.sqlite3_extended_errcode(c.db)),
err: C.GoString(C.sqlite3_errmsg(c.db)),
Code: ErrNo(rv),
ExtendedCode: ErrNoExtended(C.sqlite3_extended_errcode(db)),
err: C.GoString(C.sqlite3_errmsg(db)),
}
}
// Implements Execer
// Exec implements Execer.
func (c *SQLiteConn) Exec(query string, args []driver.Value) (driver.Result, error) {
if len(args) == 0 {
return c.exec(query)
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(query)
s, err := c.prepare(ctx, query)
if err != nil {
return nil, err
}
@ -416,14 +440,19 @@ func (c *SQLiteConn) Exec(query string, args []driver.Value) (driver.Result, err
if s.(*SQLiteStmt).s != nil {
na := s.NumInput()
if len(args) < na {
return nil, fmt.Errorf("Not enough args to execute query. Expected %d, got %d.", na, len(args))
s.Close()
return nil, fmt.Errorf("not enough args to execute query: want %d got %d", na, len(args))
}
res, err = s.Exec(args[:na])
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()
@ -434,24 +463,46 @@ func (c *SQLiteConn) Exec(query string, args []driver.Value) (driver.Result, err
}
}
// Implements Queryer
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(query)
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. Expected %d, got %d.", na, len(args))
return nil, fmt.Errorf("not enough args to execute query: want %d got %d", na, len(args))
}
rows, err := s.Query(args[:na])
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 nil, err
return rows, err
}
args = args[na:]
start += na
tail := s.(*SQLiteStmt).t
if tail == "" {
return rows, nil
@ -462,21 +513,13 @@ func (c *SQLiteConn) Query(query string, args []driver.Value) (driver.Rows, erro
}
}
func (c *SQLiteConn) exec(cmd string) (driver.Result, error) {
pcmd := C.CString(cmd)
defer C.free(unsafe.Pointer(pcmd))
var rowid, changes C.longlong
rv := C._sqlite3_exec(c.db, pcmd, &rowid, &changes)
if rv != C.SQLITE_OK {
return nil, c.lastError()
}
return &SQLiteResult{int64(rowid), int64(changes)}, nil
}
// Begin transaction.
func (c *SQLiteConn) Begin() (driver.Tx, error) {
if _, err := c.exec(c.txlock); err != nil {
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
@ -500,6 +543,8 @@ func errorString(err Error) string {
// _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.
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")
@ -507,7 +552,8 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
var loc *time.Location
txlock := "BEGIN"
busy_timeout := 5000
busyTimeout := 5000
foreignKeys := -1
pos := strings.IndexRune(dsn, '?')
if pos >= 1 {
params, err := url.ParseQuery(dsn[pos+1:])
@ -533,7 +579,7 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
if err != nil {
return nil, fmt.Errorf("Invalid _busy_timeout: %v: %v", val, err)
}
busy_timeout = int(iv)
busyTimeout = int(iv)
}
// _txlock
@ -550,6 +596,18 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
}
}
// _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)
}
}
if !strings.HasPrefix(dsn, "file:") {
dsn = dsn[:pos]
}
@ -570,21 +628,45 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
return nil, errors.New("sqlite succeeded without returning a database")
}
rv = C.sqlite3_busy_timeout(db, C.int(busy_timeout))
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
}
}
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
}
}
@ -594,18 +676,33 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
// Close the connection.
func (c *SQLiteConn) Close() error {
deleteHandles(c)
rv := C.sqlite3_close_v2(c.db)
if rv != C.SQLITE_OK {
return c.lastError()
}
deleteHandles(c)
c.dbMu.Lock()
c.db = nil
c.dbMu.Unlock()
runtime.SetFinalizer(c, nil)
return nil
}
func (c *SQLiteConn) dbConnOpen() bool {
if c == nil {
return false
}
c.dbMu.Lock()
defer c.dbMu.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
@ -618,15 +715,7 @@ func (c *SQLiteConn) Prepare(query string) (driver.Stmt, error) {
if tail != nil && *tail != '\000' {
t = strings.TrimSpace(C.GoString(tail))
}
nv := int(C.sqlite3_bind_parameter_count(s))
var nn []string
for i := 0; i < nv; i++ {
pn := C.GoString(C.sqlite3_bind_parameter_name(s, C.int(i+1)))
if len(pn) > 1 && pn[0] == '$' && 48 <= pn[1] && pn[1] <= 57 {
nn = append(nn, C.GoString(C.sqlite3_bind_parameter_name(s, C.int(i+1))))
}
}
ss := &SQLiteStmt{c: c, s: s, nv: nv, nn: nn, t: t}
ss := &SQLiteStmt{c: c, s: s, t: t}
runtime.SetFinalizer(ss, (*SQLiteStmt).Close)
return ss, nil
}
@ -637,7 +726,7 @@ func (s *SQLiteStmt) Close() error {
return nil
}
s.closed = true
if s.c == nil || s.c.db == nil {
if !s.c.dbConnOpen() {
return errors.New("sqlite statement with already closed database connection")
}
rv := C.sqlite3_finalize(s.s)
@ -648,9 +737,9 @@ func (s *SQLiteStmt) Close() error {
return nil
}
// Return a number of parameters.
// NumInput return a number of parameters.
func (s *SQLiteStmt) NumInput() int {
return s.nv
return int(C.sqlite3_bind_parameter_count(s.s))
}
type bindArg struct {
@ -658,37 +747,30 @@ type bindArg struct {
v driver.Value
}
func (s *SQLiteStmt) bind(args []driver.Value) error {
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()
}
var vargs []bindArg
narg := len(args)
vargs = make([]bindArg, narg)
if len(s.nn) > 0 {
for i, v := range s.nn {
if pi, err := strconv.Atoi(v[1:]); err == nil {
vargs[i] = bindArg{pi, args[i]}
}
}
} else {
for i, v := range args {
vargs[i] = bindArg{i + 1, v}
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 _, varg := range vargs {
n := C.int(varg.n)
v := varg.v
switch v := v.(type) {
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 {
b := []byte{0}
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(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)))
@ -705,10 +787,9 @@ func (s *SQLiteStmt) bind(args []driver.Value) error {
rv = C.sqlite3_bind_double(s.s, n, C.double(v))
case []byte:
if len(v) == 0 {
rv = C._sqlite3_bind_blob(s.s, n, nil, 0)
} else {
rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(&v[0]), C.int(len(v)))
v = placeHolder
}
rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(&v[0]), C.int(len(v)))
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)))
@ -722,29 +803,85 @@ func (s *SQLiteStmt) bind(args []driver.Value) error {
// 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
}
return &SQLiteRows{s, int(C.sqlite3_column_count(s.s)), nil, nil, s.cls}, nil
rows := &SQLiteRows{
s: s,
nc: int(C.sqlite3_column_count(s.s)),
cols: nil,
decltype: nil,
cls: s.cls,
done: make(chan struct{}),
}
// Return last inserted ID.
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
}
// Return how many rows affected.
// RowsAffected return how many rows affected.
func (r *SQLiteResult) RowsAffected() (int64, error) {
return r.changes, nil
}
// Execute the statement with arguments. Return result object.
// 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 {
@ -753,7 +890,8 @@ func (s *SQLiteStmt) Exec(args []driver.Value) (driver.Result, error) {
C.sqlite3_clear_bindings(s.s)
return nil, err
}
return &SQLiteResult{int64(rowid), int64(changes)}, nil
return &SQLiteResult{id: int64(rowid), changes: int64(changes)}, nil
}
// Close the rows.
@ -761,6 +899,9 @@ func (rc *SQLiteRows) Close() error {
if rc.s.closed {
return nil
}
if rc.done != nil {
close(rc.done)
}
if rc.cls {
return rc.s.Close()
}
@ -771,7 +912,7 @@ func (rc *SQLiteRows) Close() error {
return nil
}
// Return column names.
// Columns return column names.
func (rc *SQLiteRows) Columns() []string {
if rc.nc != len(rc.cols) {
rc.cols = make([]string, rc.nc)
@ -782,7 +923,7 @@ func (rc *SQLiteRows) Columns() []string {
return rc.cols
}
// Return column types.
// DeclTypes return column types.
func (rc *SQLiteRows) DeclTypes() []string {
if rc.decltype == nil {
rc.decltype = make([]string, rc.nc)
@ -793,7 +934,7 @@ func (rc *SQLiteRows) DeclTypes() []string {
return rc.decltype
}
// Move cursor to next.
// Next move cursor to next.
func (rc *SQLiteRows) Next(dest []driver.Value) error {
rv := C.sqlite3_step(rc.s.s)
if rv == C.SQLITE_DONE {
@ -820,10 +961,11 @@ func (rc *SQLiteRows) Next(dest []driver.Value) error {
// 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 {
val *= int64(time.Second) // convert sec to nsec
t = time.Unix(val, 0)
}
t = time.Unix(0, val).UTC()
t = t.UTC()
if rc.s.c.loc != nil {
t = t.In(rc.s.c.loc)
}

103
vendor/github.com/mattn/go-sqlite3/sqlite3_context.go generated vendored Normal file
View file

@ -0,0 +1,103 @@
// 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
/*
#ifndef USE_LIBSQLITE3
#include <sqlite3-binding.h>
#else
#include <sqlite3.h>
#endif
#include <stdlib.h>
// These wrappers are necessary because SQLITE_TRANSIENT
// is a pointer constant, and cgo doesn't translate them correctly.
static inline void my_result_text(sqlite3_context *ctx, char *p, int np) {
sqlite3_result_text(ctx, p, np, SQLITE_TRANSIENT);
}
static inline void my_result_blob(sqlite3_context *ctx, void *p, int np) {
sqlite3_result_blob(ctx, p, np, SQLITE_TRANSIENT);
}
*/
import "C"
import (
"math"
"reflect"
"unsafe"
)
const i64 = unsafe.Sizeof(int(0)) > 4
// SQLiteContext behave sqlite3_context
type SQLiteContext C.sqlite3_context
// ResultBool sets the result of an SQL function.
func (c *SQLiteContext) ResultBool(b bool) {
if b {
c.ResultInt(1)
} else {
c.ResultInt(0)
}
}
// ResultBlob sets the result of an SQL function.
// See: sqlite3_result_blob, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultBlob(b []byte) {
if i64 && len(b) > math.MaxInt32 {
C.sqlite3_result_error_toobig((*C.sqlite3_context)(c))
return
}
var p *byte
if len(b) > 0 {
p = &b[0]
}
C.my_result_blob((*C.sqlite3_context)(c), unsafe.Pointer(p), C.int(len(b)))
}
// ResultDouble sets the result of an SQL function.
// See: sqlite3_result_double, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultDouble(d float64) {
C.sqlite3_result_double((*C.sqlite3_context)(c), C.double(d))
}
// ResultInt sets the result of an SQL function.
// See: sqlite3_result_int, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultInt(i int) {
if i64 && (i > math.MaxInt32 || i < math.MinInt32) {
C.sqlite3_result_int64((*C.sqlite3_context)(c), C.sqlite3_int64(i))
} else {
C.sqlite3_result_int((*C.sqlite3_context)(c), C.int(i))
}
}
// ResultInt64 sets the result of an SQL function.
// See: sqlite3_result_int64, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultInt64(i int64) {
C.sqlite3_result_int64((*C.sqlite3_context)(c), C.sqlite3_int64(i))
}
// ResultNull sets the result of an SQL function.
// See: sqlite3_result_null, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultNull() {
C.sqlite3_result_null((*C.sqlite3_context)(c))
}
// ResultText sets the result of an SQL function.
// See: sqlite3_result_text, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultText(s string) {
h := (*reflect.StringHeader)(unsafe.Pointer(&s))
cs, l := (*C.char)(unsafe.Pointer(h.Data)), C.int(h.Len)
C.my_result_text((*C.sqlite3_context)(c), cs, l)
}
// ResultZeroblob sets the result of an SQL function.
// See: sqlite3_result_zeroblob, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultZeroblob(n int) {
C.sqlite3_result_zeroblob((*C.sqlite3_context)(c), C.int(n))
}

69
vendor/github.com/mattn/go-sqlite3/sqlite3_go18.go generated vendored Normal file
View file

@ -0,0 +1,69 @@
// 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.
// +build go1.8
package sqlite3
import (
"database/sql/driver"
"errors"
"context"
)
// Ping implement Pinger.
func (c *SQLiteConn) Ping(ctx context.Context) error {
if c.db == nil {
return errors.New("Connection was closed")
}
return nil
}
// QueryContext implement QueryerContext.
func (c *SQLiteConn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
list := make([]namedValue, len(args))
for i, nv := range args {
list[i] = namedValue(nv)
}
return c.query(ctx, query, list)
}
// ExecContext implement ExecerContext.
func (c *SQLiteConn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
list := make([]namedValue, len(args))
for i, nv := range args {
list[i] = namedValue(nv)
}
return c.exec(ctx, query, list)
}
// PrepareContext implement ConnPrepareContext.
func (c *SQLiteConn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
return c.prepare(ctx, query)
}
// BeginTx implement ConnBeginTx.
func (c *SQLiteConn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
return c.begin(ctx)
}
// QueryContext implement QueryerContext.
func (s *SQLiteStmt) QueryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) {
list := make([]namedValue, len(args))
for i, nv := range args {
list[i] = namedValue(nv)
}
return s.query(ctx, list)
}
// ExecContext implement ExecerContext.
func (s *SQLiteStmt) ExecContext(ctx context.Context, args []driver.NamedValue) (driver.Result, error) {
list := make([]namedValue, len(args))
for i, nv := range args {
list[i] = namedValue(nv)
}
return s.exec(ctx, list)
}

2
vendor/github.com/mattn/go-sqlite3/sqlite3_load_extension.go generated vendored
View file

@ -31,6 +31,7 @@ func (c *SQLiteConn) loadExtensions(extensions []string) error {
defer C.free(unsafe.Pointer(cext))
rv = C.sqlite3_load_extension(c.db, cext, nil, nil)
if rv != C.SQLITE_OK {
C.sqlite3_enable_load_extension(c.db, 0)
return errors.New(C.GoString(C.sqlite3_errmsg(c.db)))
}
}
@ -42,6 +43,7 @@ func (c *SQLiteConn) loadExtensions(extensions []string) error {
return nil
}
// LoadExtension load the sqlite3 extension.
func (c *SQLiteConn) LoadExtension(lib string, entry string) error {
rv := C.sqlite3_enable_load_extension(c.db, 1)
if rv != C.SQLITE_OK {

15
vendor/github.com/mattn/go-sqlite3/tracecallback.go → vendor/github.com/mattn/go-sqlite3/sqlite3_trace.go generated vendored
View file

@ -1,5 +1,4 @@
// Copyright (C) 2016 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
// TODO: add "Gimpl do foo" team?
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
@ -17,7 +16,7 @@ package sqlite3
void stepTrampoline(sqlite3_context*, int, sqlite3_value**);
void doneTrampoline(sqlite3_context*);
void traceCallbackTrampoline(unsigned traceEventCode, void *ctx, void *p, void *x);
int traceCallbackTrampoline(unsigned int traceEventCode, void *ctx, void *p, void *x);
*/
import "C"
@ -76,7 +75,7 @@ type TraceUserCallback func(TraceInfo) int
type TraceConfig struct {
Callback TraceUserCallback
EventMask uint
EventMask C.uint
WantExpandedSQL bool
}
@ -102,13 +101,13 @@ func fillExpandedSQL(info *TraceInfo, db *C.sqlite3, pStmt unsafe.Pointer) {
//export traceCallbackTrampoline
func traceCallbackTrampoline(
traceEventCode uint,
traceEventCode C.uint,
// Parameter named 'C' in SQLite docs = Context given at registration:
ctx unsafe.Pointer,
// Parameter named 'P' in SQLite docs (Primary event data?):
p unsafe.Pointer,
// Parameter named 'X' in SQLite docs (eXtra event data?):
xValue unsafe.Pointer) int {
xValue unsafe.Pointer) C.int {
if ctx == nil {
panic(fmt.Sprintf("No context (ev 0x%x)", traceEventCode))
@ -196,7 +195,7 @@ func traceCallbackTrampoline(
if traceConf.Callback != nil {
r = traceConf.Callback(info)
}
return r
return C.int(r)
}
type traceMapEntry struct {
@ -358,7 +357,7 @@ func (c *SQLiteConn) RegisterAggregator(name string, impl interface{}, pure bool
if pure {
opts |= C.SQLITE_DETERMINISTIC
}
rv := C._sqlite3_create_function(c.db, cname, C.int(stepNArgs), C.int(opts), C.uintptr_t(newHandle(c, &ai)), nil, (*[0]byte)(unsafe.Pointer(C.stepTrampoline)), (*[0]byte)(unsafe.Pointer(C.doneTrampoline)))
rv := sqlite3CreateFunction(c.db, cname, C.int(stepNArgs), C.int(opts), newHandle(c, &ai), nil, C.stepTrampoline, C.doneTrampoline)
if rv != C.SQLITE_OK {
return c.lastError()
}
@ -396,7 +395,7 @@ func (c *SQLiteConn) SetTrace(requested *TraceConfig) error {
// The callback trampoline function does cleanup on Close event,
// regardless of the presence or absence of the user callback.
// Therefore it needs the Close event to be selected:
actualEventMask := reqCopy.EventMask | TraceClose
actualEventMask := uint(reqCopy.EventMask | TraceClose)
err := c.setSQLiteTrace(actualEventMask)
return err
}

57
vendor/github.com/mattn/go-sqlite3/sqlite3_type.go generated vendored Normal file
View file

@ -0,0 +1,57 @@
package sqlite3
/*
#ifndef USE_LIBSQLITE3
#include <sqlite3-binding.h>
#else
#include <sqlite3.h>
#endif
*/
import "C"
import (
"reflect"
"time"
)
// ColumnTypeDatabaseTypeName implement RowsColumnTypeDatabaseTypeName.
func (rc *SQLiteRows) ColumnTypeDatabaseTypeName(i int) string {
return C.GoString(C.sqlite3_column_decltype(rc.s.s, C.int(i)))
}
/*
func (rc *SQLiteRows) ColumnTypeLength(index int) (length int64, ok bool) {
return 0, false
}
func (rc *SQLiteRows) ColumnTypePrecisionScale(index int) (precision, scale int64, ok bool) {
return 0, 0, false
}
*/
// ColumnTypeNullable implement RowsColumnTypeNullable.
func (rc *SQLiteRows) ColumnTypeNullable(i int) (nullable, ok bool) {
return true, true
}
// ColumnTypeScanType implement RowsColumnTypeScanType.
func (rc *SQLiteRows) ColumnTypeScanType(i int) reflect.Type {
switch C.sqlite3_column_type(rc.s.s, C.int(i)) {
case C.SQLITE_INTEGER:
switch C.GoString(C.sqlite3_column_decltype(rc.s.s, C.int(i))) {
case "timestamp", "datetime", "date":
return reflect.TypeOf(time.Time{})
case "boolean":
return reflect.TypeOf(false)
}
return reflect.TypeOf(int64(0))
case C.SQLITE_FLOAT:
return reflect.TypeOf(float64(0))
case C.SQLITE_BLOB:
return reflect.SliceOf(reflect.TypeOf(byte(0)))
case C.SQLITE_NULL:
return reflect.TypeOf(nil)
case C.SQLITE_TEXT:
return reflect.TypeOf("")
}
return reflect.SliceOf(reflect.TypeOf(byte(0)))
}

646
vendor/github.com/mattn/go-sqlite3/sqlite3_vtable.go generated vendored Normal file
View file

@ -0,0 +1,646 @@
// 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.
// +build vtable
package sqlite3
/*
#cgo CFLAGS: -std=gnu99
#cgo CFLAGS: -DSQLITE_ENABLE_RTREE -DSQLITE_THREADSAFE
#cgo CFLAGS: -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DSQLITE_ENABLE_FTS4_UNICODE61
#cgo CFLAGS: -DSQLITE_TRACE_SIZE_LIMIT=15
#cgo CFLAGS: -DSQLITE_ENABLE_COLUMN_METADATA=1
#cgo CFLAGS: -Wno-deprecated-declarations
#ifndef USE_LIBSQLITE3
#include <sqlite3-binding.h>
#else
#include <sqlite3.h>
#endif
#include <stdlib.h>
#include <stdint.h>
#include <memory.h>
static inline char *_sqlite3_mprintf(char *zFormat, char *arg) {
return sqlite3_mprintf(zFormat, arg);
}
typedef struct goVTab goVTab;
struct goVTab {
sqlite3_vtab base;
void *vTab;
};
uintptr_t goMInit(void *db, void *pAux, int argc, char **argv, char **pzErr, int isCreate);
static int cXInit(sqlite3 *db, void *pAux, int argc, const char *const*argv, sqlite3_vtab **ppVTab, char **pzErr, int isCreate) {
void *vTab = (void *)goMInit(db, pAux, argc, (char**)argv, pzErr, isCreate);
if (!vTab || *pzErr) {
return SQLITE_ERROR;
}
goVTab *pvTab = (goVTab *)sqlite3_malloc(sizeof(goVTab));
if (!pvTab) {
*pzErr = sqlite3_mprintf("%s", "Out of memory");
return SQLITE_NOMEM;
}
memset(pvTab, 0, sizeof(goVTab));
pvTab->vTab = vTab;
*ppVTab = (sqlite3_vtab *)pvTab;
*pzErr = 0;
return SQLITE_OK;
}
static inline int cXCreate(sqlite3 *db, void *pAux, int argc, const char *const*argv, sqlite3_vtab **ppVTab, char **pzErr) {
return cXInit(db, pAux, argc, argv, ppVTab, pzErr, 1);
}
static inline int cXConnect(sqlite3 *db, void *pAux, int argc, const char *const*argv, sqlite3_vtab **ppVTab, char **pzErr) {
return cXInit(db, pAux, argc, argv, ppVTab, pzErr, 0);
}
char* goVBestIndex(void *pVTab, void *icp);
static inline int cXBestIndex(sqlite3_vtab *pVTab, sqlite3_index_info *info) {
char *pzErr = goVBestIndex(((goVTab*)pVTab)->vTab, info);
if (pzErr) {
if (pVTab->zErrMsg)
sqlite3_free(pVTab->zErrMsg);
pVTab->zErrMsg = pzErr;
return SQLITE_ERROR;
}
return SQLITE_OK;
}
char* goVRelease(void *pVTab, int isDestroy);
static int cXRelease(sqlite3_vtab *pVTab, int isDestroy) {
char *pzErr = goVRelease(((goVTab*)pVTab)->vTab, isDestroy);
if (pzErr) {
if (pVTab->zErrMsg)
sqlite3_free(pVTab->zErrMsg);
pVTab->zErrMsg = pzErr;
return SQLITE_ERROR;
}
if (pVTab->zErrMsg)
sqlite3_free(pVTab->zErrMsg);
sqlite3_free(pVTab);
return SQLITE_OK;
}
static inline int cXDisconnect(sqlite3_vtab *pVTab) {
return cXRelease(pVTab, 0);
}
static inline int cXDestroy(sqlite3_vtab *pVTab) {
return cXRelease(pVTab, 1);
}
typedef struct goVTabCursor goVTabCursor;
struct goVTabCursor {
sqlite3_vtab_cursor base;
void *vTabCursor;
};
uintptr_t goVOpen(void *pVTab, char **pzErr);
static int cXOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor) {
void *vTabCursor = (void *)goVOpen(((goVTab*)pVTab)->vTab, &(pVTab->zErrMsg));
goVTabCursor *pCursor = (goVTabCursor *)sqlite3_malloc(sizeof(goVTabCursor));
if (!pCursor) {
return SQLITE_NOMEM;
}
memset(pCursor, 0, sizeof(goVTabCursor));
pCursor->vTabCursor = vTabCursor;
*ppCursor = (sqlite3_vtab_cursor *)pCursor;
return SQLITE_OK;
}
static int setErrMsg(sqlite3_vtab_cursor *pCursor, char *pzErr) {
if (pCursor->pVtab->zErrMsg)
sqlite3_free(pCursor->pVtab->zErrMsg);
pCursor->pVtab->zErrMsg = pzErr;
return SQLITE_ERROR;
}
char* goVClose(void *pCursor);
static int cXClose(sqlite3_vtab_cursor *pCursor) {
char *pzErr = goVClose(((goVTabCursor*)pCursor)->vTabCursor);
if (pzErr) {
return setErrMsg(pCursor, pzErr);
}
sqlite3_free(pCursor);
return SQLITE_OK;
}
char* goVFilter(void *pCursor, int idxNum, char* idxName, int argc, sqlite3_value **argv);
static int cXFilter(sqlite3_vtab_cursor *pCursor, int idxNum, const char *idxStr, int argc, sqlite3_value **argv) {
char *pzErr = goVFilter(((goVTabCursor*)pCursor)->vTabCursor, idxNum, (char*)idxStr, argc, argv);
if (pzErr) {
return setErrMsg(pCursor, pzErr);
}
return SQLITE_OK;
}
char* goVNext(void *pCursor);
static int cXNext(sqlite3_vtab_cursor *pCursor) {
char *pzErr = goVNext(((goVTabCursor*)pCursor)->vTabCursor);
if (pzErr) {
return setErrMsg(pCursor, pzErr);
}
return SQLITE_OK;
}
int goVEof(void *pCursor);
static inline int cXEof(sqlite3_vtab_cursor *pCursor) {
return goVEof(((goVTabCursor*)pCursor)->vTabCursor);
}
char* goVColumn(void *pCursor, void *cp, int col);
static int cXColumn(sqlite3_vtab_cursor *pCursor, sqlite3_context *ctx, int i) {
char *pzErr = goVColumn(((goVTabCursor*)pCursor)->vTabCursor, ctx, i);
if (pzErr) {
return setErrMsg(pCursor, pzErr);
}
return SQLITE_OK;
}
char* goVRowid(void *pCursor, sqlite3_int64 *pRowid);
static int cXRowid(sqlite3_vtab_cursor *pCursor, sqlite3_int64 *pRowid) {
char *pzErr = goVRowid(((goVTabCursor*)pCursor)->vTabCursor, pRowid);
if (pzErr) {
return setErrMsg(pCursor, pzErr);
}
return SQLITE_OK;
}
char* goVUpdate(void *pVTab, int argc, sqlite3_value **argv, sqlite3_int64 *pRowid);
static int cXUpdate(sqlite3_vtab *pVTab, int argc, sqlite3_value **argv, sqlite3_int64 *pRowid) {
char *pzErr = goVUpdate(((goVTab*)pVTab)->vTab, argc, argv, pRowid);
if (pzErr) {
if (pVTab->zErrMsg)
sqlite3_free(pVTab->zErrMsg);
pVTab->zErrMsg = pzErr;
return SQLITE_ERROR;
}
return SQLITE_OK;
}
static sqlite3_module goModule = {
0, // iVersion
cXCreate, // xCreate - create a table
cXConnect, // xConnect - connect to an existing table
cXBestIndex, // xBestIndex - Determine search strategy
cXDisconnect, // xDisconnect - Disconnect from a table
cXDestroy, // xDestroy - Drop a table
cXOpen, // xOpen - open a cursor
cXClose, // xClose - close a cursor
cXFilter, // xFilter - configure scan constraints
cXNext, // xNext - advance a cursor
cXEof, // xEof
cXColumn, // xColumn - read data
cXRowid, // xRowid - read data
cXUpdate, // xUpdate - write data
// Not implemented
0, // xBegin - begin transaction
0, // xSync - sync transaction
0, // xCommit - commit transaction
0, // xRollback - rollback transaction
0, // xFindFunction - function overloading
0, // xRename - rename the table
0, // xSavepoint
0, // xRelease
0 // xRollbackTo
};
void goMDestroy(void*);
static int _sqlite3_create_module(sqlite3 *db, const char *zName, uintptr_t pClientData) {
return sqlite3_create_module_v2(db, zName, &goModule, (void*) pClientData, goMDestroy);
}
*/
import "C"
import (
"fmt"
"math"
"reflect"
"unsafe"
)
type sqliteModule struct {
c *SQLiteConn
name string
module Module
}
type sqliteVTab struct {
module *sqliteModule
vTab VTab
}
type sqliteVTabCursor struct {
vTab *sqliteVTab
vTabCursor VTabCursor
}
// Op is type of operations.
type Op uint8
// Op mean identity of operations.
const (
OpEQ Op = 2
OpGT = 4
OpLE = 8
OpLT = 16
OpGE = 32
OpMATCH = 64
OpLIKE = 65 /* 3.10.0 and later only */
OpGLOB = 66 /* 3.10.0 and later only */
OpREGEXP = 67 /* 3.10.0 and later only */
OpScanUnique = 1 /* Scan visits at most 1 row */
)
// InfoConstraint give information of constraint.
type InfoConstraint struct {
Column int
Op Op
Usable bool
}
// InfoOrderBy give information of order-by.
type InfoOrderBy struct {
Column int
Desc bool
}
func constraints(info *C.sqlite3_index_info) []InfoConstraint {
l := info.nConstraint
slice := (*[1 << 30]C.struct_sqlite3_index_constraint)(unsafe.Pointer(info.aConstraint))[:l:l]
cst := make([]InfoConstraint, 0, l)
for _, c := range slice {
var usable bool
if c.usable > 0 {
usable = true
}
cst = append(cst, InfoConstraint{
Column: int(c.iColumn),
Op: Op(c.op),
Usable: usable,
})
}
return cst
}
func orderBys(info *C.sqlite3_index_info) []InfoOrderBy {
l := info.nOrderBy
slice := (*[1 << 30]C.struct_sqlite3_index_orderby)(unsafe.Pointer(info.aOrderBy))[:l:l]
ob := make([]InfoOrderBy, 0, l)
for _, c := range slice {
var desc bool
if c.desc > 0 {
desc = true
}
ob = append(ob, InfoOrderBy{
Column: int(c.iColumn),
Desc: desc,
})
}
return ob
}
// IndexResult is a Go struct representation of what eventually ends up in the
// output fields for `sqlite3_index_info`
// See: https://www.sqlite.org/c3ref/index_info.html
type IndexResult struct {
Used []bool // aConstraintUsage
IdxNum int
IdxStr string
AlreadyOrdered bool // orderByConsumed
EstimatedCost float64
EstimatedRows float64
}
// mPrintf is a utility wrapper around sqlite3_mprintf
func mPrintf(format, arg string) *C.char {
cf := C.CString(format)
defer C.free(unsafe.Pointer(cf))
ca := C.CString(arg)
defer C.free(unsafe.Pointer(ca))
return C._sqlite3_mprintf(cf, ca)
}
//export goMInit
func goMInit(db, pClientData unsafe.Pointer, argc C.int, argv **C.char, pzErr **C.char, isCreate C.int) C.uintptr_t {
m := lookupHandle(uintptr(pClientData)).(*sqliteModule)
if m.c.db != (*C.sqlite3)(db) {
*pzErr = mPrintf("%s", "Inconsistent db handles")
return 0
}
args := make([]string, argc)
var A []*C.char
slice := reflect.SliceHeader{Data: uintptr(unsafe.Pointer(argv)), Len: int(argc), Cap: int(argc)}
a := reflect.NewAt(reflect.TypeOf(A), unsafe.Pointer(&slice)).Elem().Interface()
for i, s := range a.([]*C.char) {
args[i] = C.GoString(s)
}
var vTab VTab
var err error
if isCreate == 1 {
vTab, err = m.module.Create(m.c, args)
} else {
vTab, err = m.module.Connect(m.c, args)
}
if err != nil {
*pzErr = mPrintf("%s", err.Error())
return 0
}
vt := sqliteVTab{m, vTab}
*pzErr = nil
return C.uintptr_t(newHandle(m.c, &vt))
}
//export goVRelease
func goVRelease(pVTab unsafe.Pointer, isDestroy C.int) *C.char {
vt := lookupHandle(uintptr(pVTab)).(*sqliteVTab)
var err error
if isDestroy == 1 {
err = vt.vTab.Destroy()
} else {
err = vt.vTab.Disconnect()
}
if err != nil {
return mPrintf("%s", err.Error())
}
return nil
}
//export goVOpen
func goVOpen(pVTab unsafe.Pointer, pzErr **C.char) C.uintptr_t {
vt := lookupHandle(uintptr(pVTab)).(*sqliteVTab)
vTabCursor, err := vt.vTab.Open()
if err != nil {
*pzErr = mPrintf("%s", err.Error())
return 0
}
vtc := sqliteVTabCursor{vt, vTabCursor}
*pzErr = nil
return C.uintptr_t(newHandle(vt.module.c, &vtc))
}
//export goVBestIndex
func goVBestIndex(pVTab unsafe.Pointer, icp unsafe.Pointer) *C.char {
vt := lookupHandle(uintptr(pVTab)).(*sqliteVTab)
info := (*C.sqlite3_index_info)(icp)
csts := constraints(info)
res, err := vt.vTab.BestIndex(csts, orderBys(info))
if err != nil {
return mPrintf("%s", err.Error())
}
if len(res.Used) != len(csts) {
return mPrintf("Result.Used != expected value", "")
}
// Get a pointer to constraint_usage struct so we can update in place.
l := info.nConstraint
s := (*[1 << 30]C.struct_sqlite3_index_constraint_usage)(unsafe.Pointer(info.aConstraintUsage))[:l:l]
index := 1
for i := C.int(0); i < info.nConstraint; i++ {
if res.Used[i] {
s[i].argvIndex = C.int(index)
s[i].omit = C.uchar(1)
index++
}
}
info.idxNum = C.int(res.IdxNum)
idxStr := C.CString(res.IdxStr)
defer C.free(unsafe.Pointer(idxStr))
info.idxStr = idxStr
info.needToFreeIdxStr = C.int(0)
if res.AlreadyOrdered {
info.orderByConsumed = C.int(1)
}
info.estimatedCost = C.double(res.EstimatedCost)
info.estimatedRows = C.sqlite3_int64(res.EstimatedRows)
return nil
}
//export goVClose
func goVClose(pCursor unsafe.Pointer) *C.char {
vtc := lookupHandle(uintptr(pCursor)).(*sqliteVTabCursor)
err := vtc.vTabCursor.Close()
if err != nil {
return mPrintf("%s", err.Error())
}
return nil
}
//export goMDestroy
func goMDestroy(pClientData unsafe.Pointer) {
m := lookupHandle(uintptr(pClientData)).(*sqliteModule)
m.module.DestroyModule()
}
//export goVFilter
func goVFilter(pCursor unsafe.Pointer, idxNum C.int, idxName *C.char, argc C.int, argv **C.sqlite3_value) *C.char {
vtc := lookupHandle(uintptr(pCursor)).(*sqliteVTabCursor)
args := (*[(math.MaxInt32 - 1) / unsafe.Sizeof((*C.sqlite3_value)(nil))]*C.sqlite3_value)(unsafe.Pointer(argv))[:argc:argc]
vals := make([]interface{}, 0, argc)
for _, v := range args {
conv, err := callbackArgGeneric(v)
if err != nil {
return mPrintf("%s", err.Error())
}
vals = append(vals, conv.Interface())
}
err := vtc.vTabCursor.Filter(int(idxNum), C.GoString(idxName), vals)
if err != nil {
return mPrintf("%s", err.Error())
}
return nil
}
//export goVNext
func goVNext(pCursor unsafe.Pointer) *C.char {
vtc := lookupHandle(uintptr(pCursor)).(*sqliteVTabCursor)
err := vtc.vTabCursor.Next()
if err != nil {
return mPrintf("%s", err.Error())
}
return nil
}
//export goVEof
func goVEof(pCursor unsafe.Pointer) C.int {
vtc := lookupHandle(uintptr(pCursor)).(*sqliteVTabCursor)
err := vtc.vTabCursor.EOF()
if err {
return 1
}
return 0
}
//export goVColumn
func goVColumn(pCursor, cp unsafe.Pointer, col C.int) *C.char {
vtc := lookupHandle(uintptr(pCursor)).(*sqliteVTabCursor)
c := (*SQLiteContext)(cp)
err := vtc.vTabCursor.Column(c, int(col))
if err != nil {
return mPrintf("%s", err.Error())
}
return nil
}
//export goVRowid
func goVRowid(pCursor unsafe.Pointer, pRowid *C.sqlite3_int64) *C.char {
vtc := lookupHandle(uintptr(pCursor)).(*sqliteVTabCursor)
rowid, err := vtc.vTabCursor.Rowid()
if err != nil {
return mPrintf("%s", err.Error())
}
*pRowid = C.sqlite3_int64(rowid)
return nil
}
//export goVUpdate
func goVUpdate(pVTab unsafe.Pointer, argc C.int, argv **C.sqlite3_value, pRowid *C.sqlite3_int64) *C.char {
vt := lookupHandle(uintptr(pVTab)).(*sqliteVTab)
var tname string
if n, ok := vt.vTab.(interface {
TableName() string
}); ok {
tname = n.TableName() + " "
}
err := fmt.Errorf("virtual %s table %sis read-only", vt.module.name, tname)
if v, ok := vt.vTab.(VTabUpdater); ok {
// convert argv
args := (*[(math.MaxInt32 - 1) / unsafe.Sizeof((*C.sqlite3_value)(nil))]*C.sqlite3_value)(unsafe.Pointer(argv))[:argc:argc]
vals := make([]interface{}, 0, argc)
for _, v := range args {
conv, err := callbackArgGeneric(v)
if err != nil {
return mPrintf("%s", err.Error())
}
// work around for SQLITE_NULL
x := conv.Interface()
if z, ok := x.([]byte); ok && z == nil {
x = nil
}
vals = append(vals, x)
}
switch {
case argc == 1:
err = v.Delete(vals[0])
case argc > 1 && vals[0] == nil:
var id int64
id, err = v.Insert(vals[1], vals[2:])
if err == nil {
*pRowid = C.sqlite3_int64(id)
}
case argc > 1:
err = v.Update(vals[1], vals[2:])
}
}
if err != nil {
return mPrintf("%s", err.Error())
}
return nil
}
// Module is a "virtual table module", it defines the implementation of a
// virtual tables. See: http://sqlite.org/c3ref/module.html
type Module interface {
// http://sqlite.org/vtab.html#xcreate
Create(c *SQLiteConn, args []string) (VTab, error)
// http://sqlite.org/vtab.html#xconnect
Connect(c *SQLiteConn, args []string) (VTab, error)
// http://sqlite.org/c3ref/create_module.html
DestroyModule()
}
// VTab describes a particular instance of the virtual table.
// See: http://sqlite.org/c3ref/vtab.html
type VTab interface {
// http://sqlite.org/vtab.html#xbestindex
BestIndex([]InfoConstraint, []InfoOrderBy) (*IndexResult, error)
// http://sqlite.org/vtab.html#xdisconnect
Disconnect() error
// http://sqlite.org/vtab.html#sqlite3_module.xDestroy
Destroy() error
// http://sqlite.org/vtab.html#xopen
Open() (VTabCursor, error)
}
// VTabUpdater is a type that allows a VTab to be inserted, updated, or
// deleted.
// See: https://sqlite.org/vtab.html#xupdate
type VTabUpdater interface {
Delete(interface{}) error
Insert(interface{}, []interface{}) (int64, error)
Update(interface{}, []interface{}) error
}
// VTabCursor describes cursors that point into the virtual table and are used
// to loop through the virtual table. See: http://sqlite.org/c3ref/vtab_cursor.html
type VTabCursor interface {
// http://sqlite.org/vtab.html#xclose
Close() error
// http://sqlite.org/vtab.html#xfilter
Filter(idxNum int, idxStr string, vals []interface{}) error
// http://sqlite.org/vtab.html#xnext
Next() error
// http://sqlite.org/vtab.html#xeof
EOF() bool
// http://sqlite.org/vtab.html#xcolumn
Column(c *SQLiteContext, col int) error
// http://sqlite.org/vtab.html#xrowid
Rowid() (int64, error)
}
// DeclareVTab declares the Schema of a virtual table.
// See: http://sqlite.org/c3ref/declare_vtab.html
func (c *SQLiteConn) DeclareVTab(sql string) error {
zSQL := C.CString(sql)
defer C.free(unsafe.Pointer(zSQL))
rv := C.sqlite3_declare_vtab(c.db, zSQL)
if rv != C.SQLITE_OK {
return c.lastError()
}
return nil
}
// CreateModule registers a virtual table implementation.
// See: http://sqlite.org/c3ref/create_module.html
func (c *SQLiteConn) CreateModule(moduleName string, module Module) error {
mname := C.CString(moduleName)
defer C.free(unsafe.Pointer(mname))
udm := sqliteModule{c, moduleName, module}
rv := C._sqlite3_create_module(c.db, mname, C.uintptr_t(newHandle(c, &udm)))
if rv != C.SQLITE_OK {
return c.lastError()
}
return nil
}

9
vendor/github.com/mattn/go-sqlite3/tracecallback_noimpl.go generated vendored
View file

@ -1,9 +0,0 @@
// +build !trace
package sqlite3
import "errors"
func (c *SQLiteConn) RegisterAggregator(name string, impl interface{}, pure bool) error {
return errors.New("This feature is not implemented")
}

6
vendor/vendor.json vendored
View file

@ -690,10 +690,10 @@
"revisionTime": "2017-02-23T14:12:10Z"
},
{
"checksumSHA1": "9FJUwn3EIgASVki+p8IHgWVC5vQ=",
"checksumSHA1": "61HNjGetaBoMp8HBOpuEZRSim8g=",
"path": "github.com/mattn/go-sqlite3",
"revision": "86681de00adef4f8040947b7d35f97000fc5a230",
"revisionTime": "2016-10-28T14:22:18Z"
"revision": "acfa60124032040b9f5a9406f5a772ee16fe845e",
"revisionTime": "2017-07-05T08:25:03Z"
},
{
"checksumSHA1": "9mjAkIoPrJdiGcR0pBa81NoFY4U=",