diff options
Diffstat (limited to 'vendor/github.com/ncruces/go-sqlite3/vfs/shm.go')
| -rw-r--r-- | vendor/github.com/ncruces/go-sqlite3/vfs/shm.go | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/vendor/github.com/ncruces/go-sqlite3/vfs/shm.go b/vendor/github.com/ncruces/go-sqlite3/vfs/shm.go index 0fbd09d0a..402676afb 100644 --- a/vendor/github.com/ncruces/go-sqlite3/vfs/shm.go +++ b/vendor/github.com/ncruces/go-sqlite3/vfs/shm.go @@ -1,4 +1,4 @@ -//go:build (darwin || linux) && (amd64 || arm64 || riscv64 || ppc64le) && !(sqlite3_flock || sqlite3_noshm || sqlite3_nosys) +//go:build (darwin || linux) && (386 || arm || amd64 || arm64 || riscv64 || ppc64le) && !(sqlite3_flock || sqlite3_noshm || sqlite3_nosys) package vfs @@ -6,11 +6,13 @@ import ( "context" "io" "os" + "sync" "time" - "github.com/ncruces/go-sqlite3/internal/util" "github.com/tetratelabs/wazero/api" "golang.org/x/sys/unix" + + "github.com/ncruces/go-sqlite3/internal/util" ) // SupportsSharedMemory is false on platforms that do not support shared memory. @@ -45,12 +47,15 @@ func NewSharedMemory(path string, flags OpenFlag) SharedMemory { } } +var _ blockingSharedMemory = &vfsShm{} + type vfsShm struct { *os.File path string regions []*util.MappedRegion readOnly bool blocking bool + sync.Mutex } func (s *vfsShm) shmOpen() _ErrorCode { @@ -196,6 +201,12 @@ func (s *vfsShm) shmUnmap(delete bool) { s.File = nil } +func (s *vfsShm) shmBarrier() { + s.Lock() + //lint:ignore SA2001 memory barrier. + s.Unlock() +} + func (s *vfsShm) shmEnableBlocking(block bool) { s.blocking = block } |