mirror of
https://github.com/dart-lang/sdk
synced 2024-11-02 12:24:24 +00:00
f407419d0a
This relands https://dart-review.googlesource.com/c/sdk/+/205633 but without renaming TARGET_OS_IPHONE to DART_TARGET_OS_IPHONE. It also changes uses of TARGET_OS_IOS to DART_TARGET_OS_MACOS_IOS to be consistent with the rest of the VM. TargetConditionals.h for XCode 13 defines several TARGET_OS_* preprocessor symbols that confuse the Dart build. There is probably a more targeted fix for this, but renaming the symbols that Dart uses will also prevent this problem if more symbols are added to the platform headers in the future. See: https://github.com/dart-lang/sdk/issues/46499 TEST=It builds. Change-Id: Ie775c19dd23cfdf5f65e5ebc6ee4ec3a561676fa Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/205860 Commit-Queue: Zach Anderson <zra@google.com> Reviewed-by: Alexander Aprelev <aam@google.com>
61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
#include "bin/io_buffer.h"
|
|
|
|
#include "platform/memory_sanitizer.h"
|
|
|
|
namespace dart {
|
|
namespace bin {
|
|
|
|
Dart_Handle IOBuffer::Allocate(intptr_t size, uint8_t** buffer) {
|
|
uint8_t* data = Allocate(size);
|
|
if (data == NULL) {
|
|
return Dart_Null();
|
|
}
|
|
Dart_Handle result = Dart_NewExternalTypedDataWithFinalizer(
|
|
Dart_TypedData_kUint8, data, size, data, size, IOBuffer::Finalizer);
|
|
|
|
if (Dart_IsError(result)) {
|
|
Free(data);
|
|
Dart_PropagateError(result);
|
|
}
|
|
if (buffer != NULL) {
|
|
*buffer = data;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
uint8_t* IOBuffer::Allocate(intptr_t size) {
|
|
return static_cast<uint8_t*>(calloc(size, sizeof(uint8_t)));
|
|
}
|
|
|
|
uint8_t* IOBuffer::Reallocate(uint8_t* buffer, intptr_t new_size) {
|
|
if (new_size == 0) {
|
|
// The call to `realloc()` below has a corner case if the new size is 0:
|
|
// It can return `nullptr` in that case even though `malloc(0)` would
|
|
// return a unique non-`nullptr` value. To avoid returning `nullptr` on
|
|
// successful realloc, we handle this case specially.
|
|
auto new_buffer = IOBuffer::Allocate(0);
|
|
if (new_buffer != nullptr) {
|
|
free(buffer);
|
|
return new_buffer;
|
|
}
|
|
return buffer;
|
|
}
|
|
#if defined(DART_TARGET_OS_WINDOWS)
|
|
// It seems windows realloc() doesn't free memory when shrinking, so we'll
|
|
// manually allocate a new buffer, copy the data and free the old buffer.
|
|
auto new_buffer = IOBuffer::Allocate(new_size);
|
|
if (new_buffer != nullptr) {
|
|
memmove(new_buffer, buffer, new_size);
|
|
free(buffer);
|
|
return static_cast<uint8_t*>(new_buffer);
|
|
}
|
|
#endif
|
|
return static_cast<uint8_t*>(realloc(buffer, new_size));
|
|
}
|
|
|
|
} // namespace bin
|
|
} // namespace dart
|