diff options
Diffstat (limited to 'vendor/github.com/bytedance/sonic/internal/rt/fastmem.go')
| -rw-r--r-- | vendor/github.com/bytedance/sonic/internal/rt/fastmem.go | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/vendor/github.com/bytedance/sonic/internal/rt/fastmem.go b/vendor/github.com/bytedance/sonic/internal/rt/fastmem.go deleted file mode 100644 index 508be4765..000000000 --- a/vendor/github.com/bytedance/sonic/internal/rt/fastmem.go +++ /dev/null @@ -1,155 +0,0 @@ -/* - * Copyright 2021 ByteDance Inc. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package rt - -import ( - "reflect" - "unsafe" - - "github.com/bytedance/sonic/option" -) - -//go:nosplit -func Get16(v []byte) int16 { - return *(*int16)((*GoSlice)(unsafe.Pointer(&v)).Ptr) -} - -//go:nosplit -func Get32(v []byte) int32 { - return *(*int32)((*GoSlice)(unsafe.Pointer(&v)).Ptr) -} - -//go:nosplit -func Get64(v []byte) int64 { - return *(*int64)((*GoSlice)(unsafe.Pointer(&v)).Ptr) -} - -//go:nosplit -func Mem2Str(v []byte) (s string) { - (*GoString)(unsafe.Pointer(&s)).Len = (*GoSlice)(unsafe.Pointer(&v)).Len - (*GoString)(unsafe.Pointer(&s)).Ptr = (*GoSlice)(unsafe.Pointer(&v)).Ptr - return -} - -//go:nosplit -func Str2Mem(s string) (v []byte) { - (*GoSlice)(unsafe.Pointer(&v)).Cap = (*GoString)(unsafe.Pointer(&s)).Len - (*GoSlice)(unsafe.Pointer(&v)).Len = (*GoString)(unsafe.Pointer(&s)).Len - (*GoSlice)(unsafe.Pointer(&v)).Ptr = (*GoString)(unsafe.Pointer(&s)).Ptr - return -} - -func BytesFrom(p unsafe.Pointer, n int, c int) (r []byte) { - (*GoSlice)(unsafe.Pointer(&r)).Ptr = p - (*GoSlice)(unsafe.Pointer(&r)).Len = n - (*GoSlice)(unsafe.Pointer(&r)).Cap = c - return -} - -func FuncAddr(f interface{}) unsafe.Pointer { - if vv := UnpackEface(f); vv.Type.Kind() != reflect.Func { - panic("f is not a function") - } else { - return *(*unsafe.Pointer)(vv.Value) - } -} - -//go:nocheckptr -func IndexChar(src string, index int) unsafe.Pointer { - return unsafe.Pointer(uintptr((*GoString)(unsafe.Pointer(&src)).Ptr) + uintptr(index)) -} - -//go:nocheckptr -func IndexByte(ptr []byte, index int) unsafe.Pointer { - return unsafe.Pointer(uintptr((*GoSlice)(unsafe.Pointer(&ptr)).Ptr) + uintptr(index)) -} - -func GuardSlice(buf *[]byte, n int) { - c := cap(*buf) - l := len(*buf) - if c-l < n { - c = c>>1 + n + l - if c < 32 { - c = 32 - } - tmp := make([]byte, l, c) - copy(tmp, *buf) - *buf = tmp - } -} - -func GuardSlice2(buf []byte, n int) []byte { - c := cap(buf) - l := len(buf) - if c-l < n { - c = c>>1 + n + l - if c < 32 { - c = 32 - } - tmp := make([]byte, l, c) - copy(tmp, buf) - buf = tmp - } - return buf -} - -//go:nosplit -func Ptr2SlicePtr(s unsafe.Pointer, l int, c int) unsafe.Pointer { - slice := &GoSlice{ - Ptr: s, - Len: l, - Cap: c, - } - return unsafe.Pointer(slice) -} - -//go:nosplit -func StrPtr(s string) unsafe.Pointer { - return (*GoString)(unsafe.Pointer(&s)).Ptr -} - -//go:nosplit -func StrFrom(p unsafe.Pointer, n int64) (s string) { - (*GoString)(unsafe.Pointer(&s)).Ptr = p - (*GoString)(unsafe.Pointer(&s)).Len = int(n) - return -} - -// NoEscape hides a pointer from escape analysis. NoEscape is -// the identity function but escape analysis doesn't think the -// output depends on the input. NoEscape is inlined and currently -// compiles down to zero instructions. -// USE CAREFULLY! -//go:nosplit -//goland:noinspection GoVetUnsafePointer -func NoEscape(p unsafe.Pointer) unsafe.Pointer { - x := uintptr(p) - return unsafe.Pointer(x ^ 0) -} - -//go:nosplit -func MoreStack(size uintptr) - -//go:nosplit -func Add(ptr unsafe.Pointer, off uintptr) unsafe.Pointer { - return unsafe.Pointer(uintptr(ptr) + off) -} - -// CanSizeResue -func CanSizeResue(cap int) bool { - return cap <= int(option.LimitBufferSize) -} |
