[experiment] add alternative wasm sqlite3 implementation available via build-tag (#2863)

This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/).

1 files changed, 34 insertions, 0 deletions

diff --git a/vendor/github.com/ncruces/go-sqlite3/vfs/os_f2fs_linux.go b/vendor/github.com/ncruces/go-sqlite3/vfs/os_f2fs_linux.go
new file mode 100644
index 000000000..a9f0e333c
--- /dev/null
+++ b/vendor/github.com/ncruces/go-sqlite3/vfs/os_f2fs_linux.go
@@ -0,0 +1,34 @@
+//go:build (amd64 || arm64 || riscv64) && !sqlite3_nosys
+
+package vfs
+
+import (
+	"os"
+
+	"golang.org/x/sys/unix"
+)
+
+const (
+	_F2FS_IOC_START_ATOMIC_WRITE  = 62721
+	_F2FS_IOC_COMMIT_ATOMIC_WRITE = 62722
+	_F2FS_IOC_ABORT_ATOMIC_WRITE  = 62725
+	_F2FS_IOC_GET_FEATURES        = 2147808524
+	_F2FS_FEATURE_ATOMIC_WRITE    = 4
+)
+
+func osBatchAtomic(file *os.File) bool {
+	flags, err := unix.IoctlGetInt(int(file.Fd()), _F2FS_IOC_GET_FEATURES)
+	return err == nil && flags&_F2FS_FEATURE_ATOMIC_WRITE != 0
+}
+
+func (f *vfsFile) BeginAtomicWrite() error {
+	return unix.IoctlSetInt(int(f.Fd()), _F2FS_IOC_START_ATOMIC_WRITE, 0)
+}
+
+func (f *vfsFile) CommitAtomicWrite() error {
+	return unix.IoctlSetInt(int(f.Fd()), _F2FS_IOC_COMMIT_ATOMIC_WRITE, 0)
+}
+
+func (f *vfsFile) RollbackAtomicWrite() error {
+	return unix.IoctlSetInt(int(f.Fd()), _F2FS_IOC_ABORT_ATOMIC_WRITE, 0)
+}