| // Copyright 2020 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "resizeable_vmo_buffer.h" |
| |
| namespace minfs { |
| |
| zx_status_t ResizeableVmoBuffer::Attach( |
| const char* name, storage::VmoidRegistry* device) { |
| ZX_DEBUG_ASSERT(!vmoid_.IsAttached()); |
| zx_status_t status = vmo_.CreateAndMap(block_size_, name); |
| if (status != ZX_OK) |
| return status; |
| return device->BlockAttachVmo(vmo_.vmo(), &vmoid_); |
| } |
| |
| zx_status_t ResizeableVmoBuffer::Detach(storage::VmoidRegistry* device) { |
| return device->BlockDetachVmo(std::move(vmoid_)); |
| } |
| |
| void ResizeableVmoBuffer::Zero(size_t index, size_t count) { |
| ZX_ASSERT(vmo_.vmo().op_range(ZX_VMO_OP_ZERO, index * BlockSize(), |
| count * BlockSize(), nullptr, 0) == ZX_OK); |
| } |
| |
| } // namespace minfs |
