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Index ⭢ Virtual Memory ⭢ asmjit::VirtMem::ProtectJitReadWriteScope

asmjit::VirtMem::ProtectJitReadWriteScope Class Reference

JIT protection scope that prepares the given memory block to be written to in the current thread.

It calls VirtMem::protectJitMemory(VirtMem::ProtectJitAccess::kReadWrite) at construction time and VirtMem::protectJitMemory(VirtMem::ProtectJitAccess::kReadExecute) combined with flushInstructionCache() in destructor. The purpose of this class is to make writing to JIT memory easier.

Public Members

Members

void* _rxPtr

size_t _size

CachePolicy _policy

Member Functions

ProtectJitReadWriteScope(const ProtectJitReadWriteScope& other) = delete

ProtectJitReadWriteScope& operator=(const ProtectJitReadWriteScope& other) = delete

Construction & Destruction

ProtectJitReadWriteScope(void* rxPtr, size_t size, CachePolicy policy = CachePolicy::kDefault) noexcept

~ProtectJitReadWriteScope() noexcept

VirtMem::ProtectJitReadWriteScope::ProtectJitReadWriteScope(

void* rxPtr,

size_t size,

CachePolicy policy = CachePolicy::kDefault

)noexcept

Makes the given memory block RW protected.

VirtMem::ProtectJitReadWriteScope::~ProtectJitReadWriteScope()noexcept

Makes the memory block RX protected again and flushes instruction cache.

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AsmJit and AsmTK libraries are open source software released under the Zlib license and can be used safely in any open-source or commercial product, statically or dynamically linked, and without having to advertise the use of the libraries. Code snippets and examples are released into public domain, see Unlicense for more details.