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pull in ncruces/go-sqlite3 v0.20.3 with tetratelabs/wazero v1.8.2 (#3574)

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kim
2024-11-26 16:25:48 +00:00
committed by GitHub
parent 6a8af42647
commit 61f8f1e0e3
41 changed files with 374 additions and 226 deletions
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100
vendor/github.com/ncruces/go-sqlite3/vfs/shm_bsd.go generated vendored
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@ -14,52 +14,52 @@ import (
"github.com/ncruces/go-sqlite3/internal/util"
)
type vfsShmFile struct {
type vfsShmParent struct {
*os.File
info os.FileInfo
refs int // +checklocks:vfsShmFilesMtx
refs int // +checklocks:vfsShmListMtx
lock [_SHM_NLOCK]int16 // +checklocks:Mutex
sync.Mutex
}
var (
// +checklocks:vfsShmFilesMtx
vfsShmFiles []*vfsShmFile
vfsShmFilesMtx sync.Mutex
// +checklocks:vfsShmListMtx
vfsShmList []*vfsShmParent
vfsShmListMtx sync.Mutex
)
type vfsShm struct {
*vfsShmFile
*vfsShmParent
path string
lock [_SHM_NLOCK]bool
regions []*util.MappedRegion
}
func (s *vfsShm) Close() error {
if s.vfsShmFile == nil {
if s.vfsShmParent == nil {
return nil
}
vfsShmFilesMtx.Lock()
defer vfsShmFilesMtx.Unlock()
vfsShmListMtx.Lock()
defer vfsShmListMtx.Unlock()
// Unlock everything.
s.shmLock(0, _SHM_NLOCK, _SHM_UNLOCK)
// Decrease reference count.
if s.vfsShmFile.refs > 0 {
s.vfsShmFile.refs--
s.vfsShmFile = nil
if s.vfsShmParent.refs > 0 {
s.vfsShmParent.refs--
s.vfsShmParent = nil
return nil
}
err := s.File.Close()
for i, g := range vfsShmFiles {
if g == s.vfsShmFile {
vfsShmFiles[i] = nil
s.vfsShmFile = nil
for i, g := range vfsShmList {
if g == s.vfsShmParent {
vfsShmList[i] = nil
s.vfsShmParent = nil
return err
}
}
@ -67,7 +67,7 @@ func (s *vfsShm) Close() error {
}
func (s *vfsShm) shmOpen() _ErrorCode {
if s.vfsShmFile != nil {
if s.vfsShmParent != nil {
return _OK
}
@ -85,13 +85,13 @@ func (s *vfsShm) shmOpen() _ErrorCode {
return _IOERR_FSTAT
}
vfsShmFilesMtx.Lock()
defer vfsShmFilesMtx.Unlock()
vfsShmListMtx.Lock()
defer vfsShmListMtx.Unlock()
// Find a shared file, increase the reference count.
for _, g := range vfsShmFiles {
for _, g := range vfsShmList {
if g != nil && os.SameFile(fi, g.info) {
s.vfsShmFile = g
s.vfsShmParent = g
g.refs++
return _OK
}
@ -107,18 +107,18 @@ func (s *vfsShm) shmOpen() _ErrorCode {
}
// Add the new shared file.
s.vfsShmFile = &vfsShmFile{
s.vfsShmParent = &vfsShmParent{
File: f,
info: fi,
}
f = nil // Don't close the file.
for i, g := range vfsShmFiles {
for i, g := range vfsShmList {
if g == nil {
vfsShmFiles[i] = s.vfsShmFile
vfsShmList[i] = s.vfsShmParent
return _OK
}
}
vfsShmFiles = append(vfsShmFiles, s.vfsShmFile)
vfsShmList = append(vfsShmList, s.vfsShmParent)
return _OK
}
@ -157,57 +157,11 @@ func (s *vfsShm) shmMap(ctx context.Context, mod api.Module, id, size int32, ext
func (s *vfsShm) shmLock(offset, n int32, flags _ShmFlag) _ErrorCode {
s.Lock()
defer s.Unlock()
switch {
case flags&_SHM_UNLOCK != 0:
for i := offset; i < offset+n; i++ {
if s.lock[i] {
if s.vfsShmFile.lock[i] == 0 {
panic(util.AssertErr())
}
if s.vfsShmFile.lock[i] <= 0 {
s.vfsShmFile.lock[i] = 0
} else {
s.vfsShmFile.lock[i]--
}
s.lock[i] = false
}
}
case flags&_SHM_SHARED != 0:
for i := offset; i < offset+n; i++ {
if s.lock[i] {
panic(util.AssertErr())
}
if s.vfsShmFile.lock[i]+1 <= 0 {
return _BUSY
}
}
for i := offset; i < offset+n; i++ {
s.vfsShmFile.lock[i]++
s.lock[i] = true
}
case flags&_SHM_EXCLUSIVE != 0:
for i := offset; i < offset+n; i++ {
if s.lock[i] {
panic(util.AssertErr())
}
if s.vfsShmFile.lock[i] != 0 {
return _BUSY
}
}
for i := offset; i < offset+n; i++ {
s.vfsShmFile.lock[i] = -1
s.lock[i] = true
}
default:
panic(util.AssertErr())
}
return _OK
return s.shmMemLock(offset, n, flags)
}
func (s *vfsShm) shmUnmap(delete bool) {
if s.vfsShmFile == nil {
if s.vfsShmParent == nil {
return
}