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This patch changes the 'Allocator' interface to the use of 'Attempt' return values instead of using exceptions for propagating errors. To largely uphold compatibility with components using the original exception-based interface - in particluar use cases where an 'Allocator' is passed to the 'new' operator - the traditional 'alloc' is still supported. But it existes merely as a wrapper around the new 'try_alloc'. Issue #4324
40 lines
893 B
C++
40 lines
893 B
C++
/*
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* \brief Genode::Allocator that uses the libc's global heap
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* \author Norman Feske
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* \date 2017-01-31
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*/
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/*
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* Copyright (C) 2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _INCLUDE__LIBC__ALLOCATOR_H_
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#define _INCLUDE__LIBC__ALLOCATOR_H_
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/* Genode includes */
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#include <base/allocator.h>
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/* libc includes */
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#include <stdlib.h>
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namespace Libc { struct Allocator; }
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struct Libc::Allocator : Genode::Allocator
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{
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typedef Genode::size_t size_t;
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Alloc_result try_alloc(size_t size) override { return malloc(size); }
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void free(void *addr, size_t size) override { ::free(addr); }
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bool need_size_for_free() const override { return false; }
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size_t overhead(size_t size) const override { return 0; }
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};
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#endif /* _INCLUDE__LIBC__ALLOCATOR_H_ */
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