blob: 76de88ac3cd4aa883548ebbd56cf563e0d2913d8 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package runtime
import "unsafe"
func sbrk(n uintptr) unsafe.Pointer {
bl := bloc
n = memRound(n)
if bl+n > blocMax {
grow := (bl + n - blocMax) / physPageSize
size := growMemory(int32(grow))
if size < 0 {
return nil
}
resetMemoryDataView()
blocMax = bl + n
}
bloc += n
return unsafe.Pointer(bl)
}
// Implemented in src/runtime/sys_wasm.s
func growMemory(pages int32) int32
func currentMemory() int32
|
