#pragma once
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#include "il2cpp-config.h"
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#if IL2CPP_THREADS_PTHREAD && !IL2CPP_TINY_WITHOUT_DEBUGGER
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#include "os/ErrorCodes.h"
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#include "utils/NonCopyable.h"
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#include <pthread.h>
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namespace il2cpp
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{
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namespace os
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{
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class ThreadLocalValueImpl : public il2cpp::utils::NonCopyable
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{
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public:
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inline ThreadLocalValueImpl()
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{
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pthread_key_t key;
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int result = pthread_key_create(&key, NULL);
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IL2CPP_ASSERT(result == 0);
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NO_UNUSED_WARNING(result);
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m_Key = key;
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}
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inline ~ThreadLocalValueImpl()
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{
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int result = pthread_key_delete(m_Key);
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IL2CPP_ASSERT(result == 0);
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NO_UNUSED_WARNING(result);
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}
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inline ErrorCode SetValue(void* value)
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{
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#if IL2CPP_TARGET_DARWIN
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apple_pthread_setspecific_direct(m_Key, value);
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#else
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if (pthread_setspecific(m_Key, value))
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return kErrorCodeGenFailure;
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#endif
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return kErrorCodeSuccess;
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}
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inline ErrorCode GetValue(void** value)
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{
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#if IL2CPP_TARGET_DARWIN
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*value = apple_pthread_getspecific_direct(m_Key);
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#else
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*value = pthread_getspecific(m_Key);
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#endif
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return kErrorCodeSuccess;
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}
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private:
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#if IL2CPP_TARGET_DARWIN
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static inline void * apple_pthread_getspecific_direct(unsigned long slot)
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{
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void *ret;
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#if defined(__i386__) || defined(__x86_64__)
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__asm__ ("mov %%gs:%1, %0" : "=r" (ret) : "m" (*(void**)(slot * sizeof(void *))));
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#elif (defined(__arm__) && (defined(_ARM_ARCH_6) || defined(_ARM_ARCH_5)))
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void **__pthread_tsd;
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#if defined(__arm__) && defined(_ARM_ARCH_6)
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uintptr_t __pthread_tpid;
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__asm__ ("mrc p15, 0, %0, c13, c0, 3" : "=r" (__pthread_tpid));
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__pthread_tsd = (void**)(__pthread_tpid & ~0x3ul);
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#elif defined(__arm__) && defined(_ARM_ARCH_5)
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register uintptr_t __pthread_tpid asm ("r9");
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__pthread_tsd = (void**)__pthread_tpid;
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#endif
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ret = __pthread_tsd[slot];
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#elif defined(__arm64__)
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ret = pthread_getspecific(slot);
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#else
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#error no _pthread_getspecific_direct implementation for this arch
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#endif
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return ret;
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}
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inline static void apple_pthread_setspecific_direct(unsigned long slot, void * val)
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{
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#if defined(__i386__)
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#if defined(__PIC__)
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__asm__ ("movl %1,%%gs:%0" : "=m" (*(void**)(slot * sizeof(void *))) : "rn" (val));
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#else
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__asm__ ("movl %1,%%gs:%0" : "=m" (*(void**)(slot * sizeof(void *))) : "ri" (val));
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#endif
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#elif defined(__x86_64__)
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/* PIC is free and cannot be disabled, even with: gcc -mdynamic-no-pic ... */
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__asm__ ("movq %1,%%gs:%0" : "=m" (*(void**)(slot * sizeof(void *))) : "rn" (val));
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#elif (defined(__arm__) && (defined(_ARM_ARCH_6) || defined(_ARM_ARCH_5)))
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void **__pthread_tsd;
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#if defined(__arm__) && defined(_ARM_ARCH_6)
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uintptr_t __pthread_tpid;
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__asm__ ("mrc p15, 0, %0, c13, c0, 3" : "=r" (__pthread_tpid));
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__pthread_tsd = (void**)(__pthread_tpid & ~0x3ul);
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#elif defined(__arm__) && defined(_ARM_ARCH_5)
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register uintptr_t __pthread_tpid asm ("r9");
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__pthread_tsd = (void**)__pthread_tpid;
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#endif
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__pthread_tsd[slot] = val;
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#elif defined(__arm64__)
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pthread_setspecific(slot, val);
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#else
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#error no _pthread_setspecific_direct implementation for this arch
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#endif
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}
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#endif
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pthread_key_t m_Key;
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};
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}
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}
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#endif
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