llgo/x/sqlite
This commit is contained in:
xushiwei
5
c/c.go
5
c/c.go
@@ -66,6 +66,11 @@ func Memset(s Pointer, c Int, n uintptr) Pointer
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// -----------------------------------------------------------------------------
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//go:linkname GoStringData llgo.stringData
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func GoStringData(string) *Char
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// -----------------------------------------------------------------------------
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//go:linkname Rand C.rand
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func Rand() Int
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220
x/sqlite/sqlite.go
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220
x/sqlite/sqlite.go
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@@ -0,0 +1,220 @@
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/*
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* Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sqlite
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import (
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_ "unsafe"
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"github.com/goplus/llgo/c"
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)
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type (
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Char = c.Char
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Int = c.Int
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Pointer = c.Pointer
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)
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const (
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LLGoPackage = "noinit,link"
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)
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// -----------------------------------------------------------------------------
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type Errno Int
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const (
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OK Errno = 0 // Successful result
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Error Errno = 1 // Generic error
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ErrInternal Errno = 2 // Internal logic error in SQLite
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ErrPerm Errno = 3 // Access permission denied
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ErrAbort Errno = 4 // Callback routine requested an abort
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ErrBusy Errno = 5 // The database file is locked
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ErrLocked Errno = 6 // A table in the database is locked
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ErrNomem Errno = 7 // A malloc() failed
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ErrReadOnly Errno = 8 // Attempt to write a readonly database
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ErrInterrupt Errno = 9 // Operation terminated by sqlite3_interrupt()
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ErrIo Errno = 10 // Some kind of disk I/O error occurred
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ErrCorrupt Errno = 11 // The database disk image is malformed
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ErrNotfound Errno = 12 // Unknown opcode in sqlite3_file_control()
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ErrFull Errno = 13 // Insertion failed because database is full
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ErrCantopen Errno = 14 // Unable to open the database file
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ErrProtocol Errno = 15 // Database lock protocol error
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_ErrEmpty Errno = 16 // Internal use only
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ErrSchema Errno = 17 // The database schema changed
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ErrToobig Errno = 18 // String or BLOB exceeds size limit
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ErrConstraint Errno = 19 // Abort due to constraint violation
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ErrMismatch Errno = 20 // Data type mismatch
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ErrMisuse Errno = 21 // Library used incorrectly
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ErrNolfs Errno = 22 // Uses OS features not supported on host
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ErrAuth Errno = 23 // Authorization denied
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_ErrFormat Errno = 24 // Not used
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ErrRange Errno = 25 // 2nd parameter to sqlite3_bind out of range
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ErrNotadb Errno = 26 // File opened that is not a database file
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ErrNotice Errno = 27 // Notifications from sqlite3_log()
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ErrWarning Errno = 28 // Warnings from sqlite3_log()
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ErrRow Errno = 100 // sqlite3_step() has another row ready
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ErrDone Errno = 101 // sqlite3_step() has finished executing
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)
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// -----------------------------------------------------------------------------
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// llgo:type C
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type Sqlite3 struct {
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}
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// llgo:type C
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type Stmt struct {
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}
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// -----------------------------------------------------------------------------
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//go:linkname doOpen C.sqlite3_open
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func doOpen(filename *Char, ppDb **Sqlite3) Errno
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//go:linkname doOpenV2 C.sqlite3_open_v2
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func doOpenV2(filename *Char, ppDb **Sqlite3, flags OpenFlags, zVfs *Char) Errno
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// OpenFlags represents SQLite open flags.
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type OpenFlags Int
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const (
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OpenReadOnly OpenFlags = 0x00000001
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OpenReadWrite OpenFlags = 0x00000002
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OpenCreate OpenFlags = 0x00000004
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OpenDeleteOnClose OpenFlags = 0x00000008 // VFS only
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OpenExclusive OpenFlags = 0x00000010 // VFS only
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OpenAutoProxy OpenFlags = 0x00000020 // VFS only
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OpenUri OpenFlags = 0x00000040
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OpenMemory OpenFlags = 0x00000080
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OpenMainDb OpenFlags = 0x00000100 // VFS only
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OpenTempDb OpenFlags = 0x00000200 // VFS only
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OpenTransientDb OpenFlags = 0x00000400 // VFS only
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OpenMainJournal OpenFlags = 0x00000800 // VFS only
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OpenTempJournal OpenFlags = 0x00001000 // VFS only
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OpenSubJournal OpenFlags = 0x00002000 // VFS only
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OpenSuperJournal OpenFlags = 0x00004000 // VFS only
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OpenNoMutex OpenFlags = 0x00008000
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OpenFullMutex OpenFlags = 0x00010000
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OpenSharedCache OpenFlags = 0x00020000
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OpenPrivateCache OpenFlags = 0x00040000
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OpenWal OpenFlags = 0x00080000 // VFS only
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OpenNoFollow OpenFlags = 0x01000000
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OpenExResCode OpenFlags = 0x02000000 // Extended result codes
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)
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// Opening A New Database Connection
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// filename: Database filename (UTF-8)
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func Open(filename *Char) (db *Sqlite3, err Errno) {
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err = doOpen(filename, &db)
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return
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}
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// Opening A New Database Connection
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// filename: Database filename (UTF-8)
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// zVfs: Name of VFS module to use
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func OpenV2(filename *Char, flags OpenFlags, zVfs *Char) (db *Sqlite3, err Errno) {
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err = doOpenV2(filename, &db, flags, zVfs)
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return
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}
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// Closing A Database Connection
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//
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// llgo:link (*Sqlite3).Close C.sqlite3_close
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func (*Sqlite3) Close() Errno { return 0 }
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// Closing A Database Connection
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//
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// llgo:link (*Sqlite3).CloseV2 C.sqlite3_close_v2
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func (*Sqlite3) CloseV2() Errno { return 0 }
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// -----------------------------------------------------------------------------
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// llgo:link (*Sqlite3).doPrepare C.sqlite3_prepare
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func (*Sqlite3) doPrepare(*Char, Int, **Stmt, **Char) Errno {
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return 0
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}
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// llgo:link (*Sqlite3).doPrepareV2 C.sqlite3_prepare_v2
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func (*Sqlite3) doPrepareV2(*Char, Int, **Stmt, **Char) Errno {
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return 0
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}
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// llgo:link (*Sqlite3).doPrepareV3 C.sqlite3_prepare_v3
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func (*Sqlite3) doPrepareV3(*Char, Int, PrepareFlags, **Stmt, **Char) Errno {
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return 0
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}
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// PrepareFlags represents SQLite prepare flags.
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type PrepareFlags Int
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const (
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PreparePersistent PrepareFlags = 0x01
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PrepareNormalize PrepareFlags = 0x02
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PrepareNoVtab PrepareFlags = 0x04
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)
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// Compiling An SQL Statement
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// tail: Pointer to unused portion of zSql
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func (db *Sqlite3) Prepare(sql string) (stmt *Stmt, tail *Char, err Errno) {
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err = db.doPrepare(c.GoStringData(sql), c.Int(len(sql)), &stmt, &tail)
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return
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}
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func (db *Sqlite3) PrepareV2(sql string) (stmt *Stmt, tail *Char, err Errno) {
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err = db.doPrepareV2(c.GoStringData(sql), c.Int(len(sql)), &stmt, &tail)
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return
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}
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func (db *Sqlite3) PrepareV3(sql string, flags PrepareFlags) (stmt *Stmt, tail *Char, err Errno) {
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err = db.doPrepareV3(c.GoStringData(sql), c.Int(len(sql)), flags, &stmt, &tail)
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return
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}
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// -----------------------------------------------------------------------------
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// llgo:link (*Stmt).BindInt C.sqlite3_bind_int
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func (*Stmt) BindInt(idx Int, val Int) Errno { return 0 }
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// llgo:link (*Stmt).BindInt64 C.sqlite3_bind_int64
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func (*Stmt) BindInt64(idx Int, val int64) Errno { return 0 }
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// llgo:link (*Stmt).doBindText C.sqlite3_bind_text
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func (*Stmt) doBindText(Int, *Char, Int, func(Pointer)) Errno { return 0 }
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func (stmt *Stmt) BindText(idx Int, val string, xDel func(Pointer)) Errno {
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return stmt.doBindText(idx, c.GoStringData(val), c.Int(len(val)), xDel)
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}
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// -----------------------------------------------------------------------------
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// Evaluate An SQL Statement
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//
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// llgo:link (*Stmt).Step C.sqlite3_step
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func (*Stmt) Step() Errno { return 0 }
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// -----------------------------------------------------------------------------
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// One-Step Query Execution Interface
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//
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// llgo:link (*Sqlite3).Exec C.sqlite3_exec
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func (*Sqlite3) Exec(
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sql *Char, callback func(arg Pointer, resultCols Int, colVals, colNames **Char) Int,
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arg Pointer, errmsg *Char) Errno {
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return 0
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}
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// -----------------------------------------------------------------------------
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