tmp/tmpa1vqby3r/{from.md → to.md}
RENAMED
|
@@ -0,0 +1,57 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1 |
+
#### `monotonic_buffer_resource` members <a id="mem.res.monotonic.buffer.mem">[[mem.res.monotonic.buffer.mem]]</a>
|
| 2 |
+
|
| 3 |
+
``` cpp
|
| 4 |
+
void release();
|
| 5 |
+
```
|
| 6 |
+
|
| 7 |
+
*Effects:* Calls `upstream_rsrc->deallocate()` as necessary to release
|
| 8 |
+
all allocated memory.
|
| 9 |
+
|
| 10 |
+
[*Note 1*: The memory is released back to `upstream_rsrc` even if some
|
| 11 |
+
blocks that were allocated from `this` have not been deallocated from
|
| 12 |
+
`this`. — *end note*]
|
| 13 |
+
|
| 14 |
+
``` cpp
|
| 15 |
+
memory_resource* upstream_resource() const;
|
| 16 |
+
```
|
| 17 |
+
|
| 18 |
+
*Returns:* The value of `upstream_rsrc`.
|
| 19 |
+
|
| 20 |
+
``` cpp
|
| 21 |
+
void* do_allocate(size_t bytes, size_t alignment) override;
|
| 22 |
+
```
|
| 23 |
+
|
| 24 |
+
*Returns:* A pointer to allocated storage
|
| 25 |
+
([[basic.stc.dynamic.deallocation]]) with a size of at least `bytes`.
|
| 26 |
+
The size and alignment of the allocated memory shall meet the
|
| 27 |
+
requirements for a class derived from `memory_resource` ([[mem.res]]).
|
| 28 |
+
|
| 29 |
+
*Effects:* If the unused space in `current_buffer` can fit a block with
|
| 30 |
+
the specified `bytes` and `alignment`, then allocate the return block
|
| 31 |
+
from `current_buffer`; otherwise set `current_buffer` to
|
| 32 |
+
`upstream_rsrc->allocate(n, m)`, where `n` is not less than
|
| 33 |
+
`max(bytes, next_buffer_size)` and `m` is not less than `alignment`, and
|
| 34 |
+
increase `next_buffer_size` by an *implementation-defined* growth factor
|
| 35 |
+
(which need not be integral), then allocate the return block from the
|
| 36 |
+
newly-allocated `current_buffer`.
|
| 37 |
+
|
| 38 |
+
*Throws:* Nothing unless `upstream_rsrc->allocate()` throws.
|
| 39 |
+
|
| 40 |
+
``` cpp
|
| 41 |
+
void do_deallocate(void* p, size_t bytes, size_t alignment) override;
|
| 42 |
+
```
|
| 43 |
+
|
| 44 |
+
*Effects:* None.
|
| 45 |
+
|
| 46 |
+
*Throws:* Nothing.
|
| 47 |
+
|
| 48 |
+
*Remarks:* Memory used by this resource increases monotonically until
|
| 49 |
+
its destruction.
|
| 50 |
+
|
| 51 |
+
``` cpp
|
| 52 |
+
bool do_is_equal(const memory_resource& other) const noexcept override;
|
| 53 |
+
```
|
| 54 |
+
|
| 55 |
+
*Returns:*
|
| 56 |
+
`this == dynamic_cast<const monotonic_buffer_resource*>(&other)`.
|
| 57 |
+
|