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wazero v1.7.2.

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Nuno Cruces
2024-06-11 22:57:29 +01:00
parent ef065b6baa
commit f7ac77027c
9 changed files with 29 additions and 34 deletions
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29
vfs/memdb/memdb.go
View File

@@ -75,11 +75,6 @@ func (memVFS) FullPathname(name string) (string, error) {
type memDB struct {
name string
// +checklocks:lockMtx
pending *memFile
// +checklocks:lockMtx
reserved *memFile
// +checklocks:dataMtx
data []*[sectorSize]byte
@@ -88,6 +83,10 @@ type memDB struct {
// +checklocks:lockMtx
shared int
// +checklocks:lockMtx
reserved bool
// +checklocks:lockMtx
pending bool
// +checklocks:memoryMtx
refs int
@@ -214,24 +213,24 @@ func (m *memFile) Lock(lock vfs.LockLevel) error {
switch lock {
case vfs.LOCK_SHARED:
if m.pending != nil {
if m.pending {
return sqlite3.BUSY
}
m.shared++
case vfs.LOCK_RESERVED:
if m.reserved != nil {
if m.reserved {
return sqlite3.BUSY
}
m.reserved = m
m.reserved = true
case vfs.LOCK_EXCLUSIVE:
if m.lock < vfs.LOCK_PENDING {
if m.pending != nil {
if m.pending {
return sqlite3.BUSY
}
m.lock = vfs.LOCK_PENDING
m.pending = m
m.pending = true
}
for before := time.Now(); m.shared > 1; {
@@ -256,11 +255,11 @@ func (m *memFile) Unlock(lock vfs.LockLevel) error {
m.lockMtx.Lock()
defer m.lockMtx.Unlock()
if m.pending == m {
m.pending = nil
if m.pending && m.lock >= vfs.LOCK_PENDING {
m.pending = false
}
if m.reserved == m {
m.reserved = nil
if m.reserved && m.lock >= vfs.LOCK_RESERVED {
m.reserved = false
}
if lock < vfs.LOCK_SHARED {
m.shared--
@@ -275,7 +274,7 @@ func (m *memFile) CheckReservedLock() (bool, error) {
}
m.lockMtx.Lock()
defer m.lockMtx.Unlock()
return m.reserved != nil, nil
return m.reserved, nil
}
func (m *memFile) SectorSize() int {

13
vfs/shm_bsd.go
View File

@@ -101,13 +101,13 @@ func (s *vfsShm) shmOpen() (rc _ErrorCode) {
return _OK
}
// Open file read-write, as it will be shared.
// Always open file read-write, as it will be shared.
f, err := os.OpenFile(s.path,
unix.O_RDWR|unix.O_CREAT|unix.O_NOFOLLOW, 0666)
if err != nil {
return _CANTOPEN
}
// Close if file if it's not nil.
// Closes file if it's not nil.
defer func() { f.Close() }()
fi, err := f.Stat()
@@ -145,17 +145,14 @@ func (s *vfsShm) shmOpen() (rc _ErrorCode) {
info: fi,
refs: 1,
}
f = nil
add := true
f = nil // Don't close the file.
for i, g := range vfsShmFiles {
if g == nil {
vfsShmFiles[i] = s.vfsShmFile
add = false
return rc
}
}
if add {
vfsShmFiles = append(vfsShmFiles, s.vfsShmFile)
}
vfsShmFiles = append(vfsShmFiles, s.vfsShmFile)
return rc
}