diff options
Diffstat (limited to 'vendor/github.com/ncruces/go-sqlite3/internal/util/mmap.go')
| -rw-r--r-- | vendor/github.com/ncruces/go-sqlite3/internal/util/mmap.go | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/vendor/github.com/ncruces/go-sqlite3/internal/util/mmap.go b/vendor/github.com/ncruces/go-sqlite3/internal/util/mmap.go index 5788eeb24..613bb90b1 100644 --- a/vendor/github.com/ncruces/go-sqlite3/internal/util/mmap.go +++ b/vendor/github.com/ncruces/go-sqlite3/internal/util/mmap.go @@ -1,4 +1,4 @@ -//go:build unix && (386 || arm || amd64 || arm64 || riscv64 || ppc64le) && !(sqlite3_noshm || sqlite3_nosys) +//go:build unix && !sqlite3_nosys package util @@ -55,10 +55,10 @@ type MappedRegion struct { used bool } -func MapRegion(ctx context.Context, mod api.Module, f *os.File, offset int64, size int32, prot int) (*MappedRegion, error) { +func MapRegion(ctx context.Context, mod api.Module, f *os.File, offset int64, size int32, readOnly bool) (*MappedRegion, error) { s := ctx.Value(moduleKey{}).(*moduleState) r := s.new(ctx, mod, size) - err := r.mmap(f, offset, prot) + err := r.mmap(f, offset, readOnly) if err != nil { return nil, err } @@ -75,7 +75,11 @@ func (r *MappedRegion) Unmap() error { return err } -func (r *MappedRegion) mmap(f *os.File, offset int64, prot int) error { +func (r *MappedRegion) mmap(f *os.File, offset int64, readOnly bool) error { + prot := unix.PROT_READ + if !readOnly { + prot |= unix.PROT_WRITE + } _, err := unix.MmapPtr(int(f.Fd()), offset, r.addr, uintptr(r.size), prot, unix.MAP_SHARED|unix.MAP_FIXED) r.used = err == nil |