mirror of
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2f33fe86f5
* Update dependencies and build to go1.22 * Fix api changes wrt to dependencies * Update golangci config
351 lines
11 KiB
Go
351 lines
11 KiB
Go
// Copyright 2017 The Sqlite Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package sqlite is a sql/database driver using a CGo-free port of the C
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// SQLite3 library.
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//
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// SQLite is an in-process implementation of a self-contained, serverless,
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// zero-configuration, transactional SQL database engine.
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//
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// # Thanks
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//
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// This project is sponsored by Schleibinger Geräte Teubert u. Greim GmbH by
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// allowing one of the maintainers to work on it also in office hours.
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//
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// # Supported platforms and architectures
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//
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// These combinations of GOOS and GOARCH are currently supported
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//
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// OS Arch SQLite version
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// ------------------------------
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// darwin amd64 3.45.3
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// darwin arm64 3.45.3
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// freebsd amd64 3.45.3
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// freebsd arm64 3.45.3
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// linux 386 3.45.3
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// linux amd64 3.45.3
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// linux arm 3.45.3
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// linux arm64 3.45.3
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// linux loong64 3.45.3
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// linux ppc64le 3.45.3
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// linux riscv64 3.45.3
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// linux s390x 3.45.3
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// windows amd64 3.45.3
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// windows arm64 3.45.3
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//
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// # Builders
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//
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// Builder results available at:
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//
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// https://modern-c.appspot.com/-/builder/?importpath=modernc.org%2fsqlite
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//
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// # Fragile modernc.org/libc dependency
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//
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// When you import this package you should use in your go.mod file the exact
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// same version of modernc.org/libc as seen in the go.mod file of this
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// repository.
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//
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// See the discussion at https://gitlab.com/cznic/sqlite/-/issues/177 for more details.
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//
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// # Changelog
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//
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// 2024-02-13: v1.29.0
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//
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// Upgrade to SQLite 3.45.1, release notes at https://sqlite.org/releaselog/3_45_1.html.
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//
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// 2023-12-14 v1.28.0:
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//
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// (*Driver).RegisterConnectionHook: added
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// ConnectionHookFn: added
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// ExecQuerierContext: added
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// RegisterConnectionHook: added
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//
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// 2023-08-03 v1.25.0: enable SQLITE_ENABLE_DBSTAT_VTAB.
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//
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// 2023-07-11 v1.24.0:
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//
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// Add (*conn).{Serialize,Deserialize,NewBackup,NewRestore} methods, add Backup type.
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//
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// 2023-06-01 v1.23.0:
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//
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// Allow registering aggregate functions.
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//
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// 2023-04-22 v1.22.0:
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//
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// Support linux/s390x.
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//
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// 2023-02-23 v1.21.0:
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//
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// Upgrade to SQLite 3.41.0, release notes at https://sqlite.org/releaselog/3_41_0.html.
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//
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// 2022-11-28 v1.20.0
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//
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// Support linux/ppc64le.
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//
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// 2022-09-16 v1.19.0:
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//
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// Support frebsd/arm64.
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//
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// 2022-07-26 v1.18.0:
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//
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// Adds support for Go fs.FS based SQLite virtual filesystems, see function New
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// in modernc.org/sqlite/vfs and/or TestVFS in all_test.go
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//
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// 2022-04-24 v1.17.0:
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//
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// Support windows/arm64.
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//
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// 2022-04-04 v1.16.0:
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//
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// Support scalar application defined functions written in Go.
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//
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// https://www.sqlite.org/appfunc.html
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//
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// 2022-03-13 v1.15.0:
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//
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// Support linux/riscv64.
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//
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// 2021-11-13 v1.14.0:
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//
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// Support windows/amd64. This target had previously only experimental status
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// because of a now resolved memory leak.
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//
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// 2021-09-07 v1.13.0:
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//
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// Support freebsd/amd64.
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//
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// 2021-06-23 v1.11.0:
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//
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// Upgrade to use sqlite 3.36.0, release notes at https://www.sqlite.org/releaselog/3_36_0.html.
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//
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// 2021-05-06 v1.10.6:
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//
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// Fixes a memory corruption issue
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// (https://gitlab.com/cznic/sqlite/-/issues/53). Versions since v1.8.6 were
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// affected and should be updated to v1.10.6.
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//
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// 2021-03-14 v1.10.0:
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//
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// Update to use sqlite 3.35.0, release notes at https://www.sqlite.org/releaselog/3_35_0.html.
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//
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// 2021-03-11 v1.9.0:
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//
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// Support darwin/arm64.
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//
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// 2021-01-08 v1.8.0:
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//
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// Support darwin/amd64.
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//
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// 2020-09-13 v1.7.0:
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//
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// Support linux/arm and linux/arm64.
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//
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// 2020-09-08 v1.6.0:
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//
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// Support linux/386.
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//
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// 2020-09-03 v1.5.0:
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//
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// This project is now completely CGo-free, including the Tcl tests.
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//
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// 2020-08-26 v1.4.0:
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//
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// First stable release for linux/amd64. The database/sql driver and its tests
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// are CGo free. Tests of the translated sqlite3.c library still require CGo.
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//
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// $ make full
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//
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// ...
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//
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// SQLite 2020-08-14 13:23:32 fca8dc8b578f215a969cd899336378966156154710873e68b3d9ac5881b0ff3f
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// 0 errors out of 928271 tests on 3900x Linux 64-bit little-endian
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// WARNING: Multi-threaded tests skipped: Linked against a non-threadsafe Tcl build
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// All memory allocations freed - no leaks
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// Maximum memory usage: 9156360 bytes
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// Current memory usage: 0 bytes
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// Number of malloc() : -1 calls
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// --- PASS: TestTclTest (1785.04s)
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// PASS
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// ok modernc.org/sqlite 1785.041s
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// $
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//
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// 2020-07-26 v1.4.0-beta1:
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//
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// The project has reached beta status while supporting linux/amd64 only at the
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// moment. The 'extraquick' Tcl testsuite reports
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//
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// 630 errors out of 200177 tests on Linux 64-bit little-endian
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//
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// and some memory leaks
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//
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// Unfreed memory: 698816 bytes in 322 allocations
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//
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// 2019-12-28 v1.2.0-alpha.3: Third alpha fixes issue #19.
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//
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// It also bumps the minor version as the repository was wrongly already tagged
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// with v1.1.0 before. Even though the tag was deleted there are proxies that
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// cached that tag. Thanks /u/garaktailor for detecting the problem and
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// suggesting this solution.
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//
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// 2019-12-26 v1.1.0-alpha.2: Second alpha release adds support for accessing a
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// database concurrently by multiple goroutines and/or processes. v1.1.0 is now
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// considered feature-complete. Next planed release should be a beta with a
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// proper test suite.
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//
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// 2019-12-18 v1.1.0-alpha.1: First alpha release using the new cc/v3, gocc,
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// qbe toolchain. Some primitive tests pass on linux_{amd64,386}. Not yet safe
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// for concurrent access by multiple goroutines. Next alpha release is planed
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// to arrive before the end of this year.
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//
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// 2017-06-10 Windows/Intel no more uses the VM (thanks Steffen Butzer).
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//
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// 2017-06-05 Linux/Intel no more uses the VM (cznic/virtual).
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//
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// # Connecting to a database
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//
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// To access a Sqlite database do something like
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//
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// import (
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// "database/sql"
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//
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// _ "modernc.org/sqlite"
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// )
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//
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// ...
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//
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//
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// db, err := sql.Open("sqlite", dsnURI)
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//
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// ...
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//
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// # Debug and development versions
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//
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// A comma separated list of options can be passed to `go generate` via the
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// environment variable GO_GENERATE. Some useful options include for example:
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//
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// -DSQLITE_DEBUG
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// -DSQLITE_MEM_DEBUG
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// -ccgo-verify-structs
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//
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// To create a debug/development version, issue for example:
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//
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// $ GO_GENERATE=-DSQLITE_DEBUG,-DSQLITE_MEM_DEBUG go generate
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//
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// Note: To run `go generate` you need to have modernc.org/ccgo/v3 installed.
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//
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// # Hacking
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//
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// This is an example of how to use the debug logs in modernc.org/libc when hunting a bug.
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//
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// 0:jnml@e5-1650:~/src/modernc.org/sqlite$ git status
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// On branch master
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// Your branch is up to date with 'origin/master'.
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//
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// nothing to commit, working tree clean
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// 0:jnml@e5-1650:~/src/modernc.org/sqlite$ git log -1
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// commit df33b8d15107f3cc777799c0fe105f74ef499e62 (HEAD -> master, tag: v1.21.1, origin/master, origin/HEAD, wips, ok)
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// Author: Jan Mercl <0xjnml@gmail.com>
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// Date: Mon Mar 27 16:18:28 2023 +0200
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//
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// upgrade to SQLite 3.41.2
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// 0:jnml@e5-1650:~/src/modernc.org/sqlite$ rm -f /tmp/libc.log ; go test -v -tags=libc.dmesg -run TestScalar ; ls -l /tmp/libc.log
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// test binary compiled for linux/amd64
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// === RUN TestScalar
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// --- PASS: TestScalar (0.09s)
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// PASS
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// ok modernc.org/sqlite 0.128s
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// -rw-r--r-- 1 jnml jnml 76 Apr 6 11:22 /tmp/libc.log
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// 0:jnml@e5-1650:~/src/modernc.org/sqlite$ cat /tmp/libc.log
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// [10723 sqlite.test] 2023-04-06 11:22:48.288066057 +0200 CEST m=+0.000707150
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// 0:jnml@e5-1650:~/src/modernc.org/sqlite$
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//
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// The /tmp/libc.log file is created as requested. No useful messages there because none are enabled in libc. Let's try to enable Xwrite as an example.
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//
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// 0:jnml@e5-1650:~/src/modernc.org/libc$ git status
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// On branch master
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// Your branch is up to date with 'origin/master'.
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//
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// Changes not staged for commit:
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// (use "git add <file>..." to update what will be committed)
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// (use "git restore <file>..." to discard changes in working directory)
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// modified: libc_linux.go
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//
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// no changes added to commit (use "git add" and/or "git commit -a")
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// 0:jnml@e5-1650:~/src/modernc.org/libc$ git log -1
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// commit 1e22c18cf2de8aa86d5b19b165f354f99c70479c (HEAD -> master, tag: v1.22.3, origin/master, origin/HEAD)
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// Author: Jan Mercl <0xjnml@gmail.com>
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// Date: Wed Feb 22 20:27:45 2023 +0100
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//
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// support sqlite 3.41 on linux targets
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// 0:jnml@e5-1650:~/src/modernc.org/libc$ git diff
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// diff --git a/libc_linux.go b/libc_linux.go
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// index 1c2f482..ac1f08d 100644
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// --- a/libc_linux.go
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// +++ b/libc_linux.go
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// @@ -332,19 +332,19 @@ func Xwrite(t *TLS, fd int32, buf uintptr, count types.Size_t) types.Ssize_t {
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// var n uintptr
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// switch n, _, err = unix.Syscall(unix.SYS_WRITE, uintptr(fd), buf, uintptr(count)); err {
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// case 0:
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// - // if dmesgs {
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// - // // dmesg("%v: %d %#x: %#x\n%s", origin(1), fd, count, n, hex.Dump(GoBytes(buf, int(n))))
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// - // dmesg("%v: %d %#x: %#x", origin(1), fd, count, n)
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// - // }
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// + if dmesgs {
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// + // dmesg("%v: %d %#x: %#x\n%s", origin(1), fd, count, n, hex.Dump(GoBytes(buf, int(n))))
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// + dmesg("%v: %d %#x: %#x", origin(1), fd, count, n)
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// + }
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// return types.Ssize_t(n)
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// case errno.EAGAIN:
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// // nop
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// }
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// }
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//
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// - // if dmesgs {
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// - // dmesg("%v: fd %v, count %#x: %v", origin(1), fd, count, err)
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// - // }
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// + if dmesgs {
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// + dmesg("%v: fd %v, count %#x: %v", origin(1), fd, count, err)
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// + }
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// t.setErrno(err)
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// return -1
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// }
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// 0:jnml@e5-1650:~/src/modernc.org/libc$
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//
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// We need to tell the Go build system to use our local, patched/debug libc:
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//
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// 0:jnml@e5-1650:~/src/modernc.org/sqlite$ go work use $(go env GOPATH)/src/modernc.org/libc
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// 0:jnml@e5-1650:~/src/modernc.org/sqlite$ go work use .
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//
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// And run the test again:
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//
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// 0:jnml@e5-1650:~/src/modernc.org/sqlite$ rm -f /tmp/libc.log ; go test -v -tags=libc.dmesg -run TestScalar ; ls -l /tmp/libc.log
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// test binary compiled for linux/amd64
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// === RUN TestScalar
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// --- PASS: TestScalar (0.26s)
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// PASS
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// ok modernc.org/sqlite 0.285s
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// -rw-r--r-- 1 jnml jnml 918 Apr 6 11:29 /tmp/libc.log
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// 0:jnml@e5-1650:~/src/modernc.org/sqlite$ cat /tmp/libc.log
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// [11910 sqlite.test] 2023-04-06 11:29:13.143589542 +0200 CEST m=+0.000689270
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 8 0x200: 0x200
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 8 0xc: 0xc
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 7 0x1000: 0x1000
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 7 0x1000: 0x1000
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 8 0x200: 0x200
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 8 0x4: 0x4
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 8 0x1000: 0x1000
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 8 0x4: 0x4
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 8 0x4: 0x4
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 8 0x1000: 0x1000
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 8 0x4: 0x4
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 8 0xc: 0xc
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 7 0x1000: 0x1000
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// [11910 sqlite.test] libc_linux.go:337:Xwrite: 7 0x1000: 0x1000
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// 0:jnml@e5-1650:~/src/modernc.org/sqlite$
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//
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// # Sqlite documentation
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//
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// See https://sqlite.org/docs.html
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package sqlite // import "modernc.org/sqlite"
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