90 lines
2.4 KiB
C++
90 lines
2.4 KiB
C++
// This file is part of AsmJit project <https://asmjit.com>
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//
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// See asmjit.h or LICENSE.md for license and copyright information
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// SPDX-License-Identifier: Zlib
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#ifndef ASMJIT_CORE_JITRUNTIME_H_INCLUDED
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#define ASMJIT_CORE_JITRUNTIME_H_INCLUDED
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#include "../core/api-config.h"
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#ifndef ASMJIT_NO_JIT
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#include "../core/codeholder.h"
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#include "../core/jitallocator.h"
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#include "../core/target.h"
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ASMJIT_BEGIN_NAMESPACE
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class CodeHolder;
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//! \addtogroup asmjit_virtual_memory
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//! \{
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//! JIT execution runtime is a special `Target` that is designed to store and
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//! execute the generated code.
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class ASMJIT_VIRTAPI JitRuntime : public Target {
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public:
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ASMJIT_NONCOPYABLE(JitRuntime)
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//! Virtual memory allocator.
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JitAllocator _allocator;
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//! \name Construction & Destruction
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//! \{
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//! Creates a `JitRuntime` instance.
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ASMJIT_API explicit JitRuntime(const JitAllocator::CreateParams* params = nullptr) noexcept;
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//! Destroys the `JitRuntime` instance.
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ASMJIT_API virtual ~JitRuntime() noexcept;
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inline void reset(ResetPolicy resetPolicy = ResetPolicy::kSoft) noexcept {
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_allocator.reset(resetPolicy);
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}
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//! \}
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//! \name Accessors
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//! \{
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//! Returns the associated `JitAllocator`.
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inline JitAllocator* allocator() const noexcept { return const_cast<JitAllocator*>(&_allocator); }
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//! \}
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//! \name Utilities
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//! \{
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// NOTE: To allow passing function pointers to `add()` and `release()` the
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// virtual methods are prefixed with `_` and called from templates instead.
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//! Allocates memory needed for a code stored in the `CodeHolder` and relocates the code to the pointer allocated.
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//!
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//! The beginning of the memory allocated for the function is returned in `dst`. If failed `Error` code is returned
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//! and `dst` is explicitly set to `nullptr` (this means that you don't have to set it to null before calling `add()`).
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template<typename Func>
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inline Error add(Func* dst, CodeHolder* code) noexcept {
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return _add(Support::ptr_cast_impl<void**, Func*>(dst), code);
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}
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//! Releases `p` which was obtained by calling `add()`.
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template<typename Func>
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inline Error release(Func p) noexcept {
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return _release(Support::ptr_cast_impl<void*, Func>(p));
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}
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//! Type-unsafe version of `add()`.
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ASMJIT_API virtual Error _add(void** dst, CodeHolder* code) noexcept;
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//! Type-unsafe version of `release()`.
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ASMJIT_API virtual Error _release(void* p) noexcept;
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//! \}
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};
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//! \}
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ASMJIT_END_NAMESPACE
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#endif
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#endif
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