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InstanceBrick--nightcap/include/compat/bionic_pthread_key_runtime.h
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2026-08-16 04:19:32 +03:00

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#ifndef MOCKTAIL_COMPAT_BIONIC_PTHREAD_KEY_RUNTIME_H_
#define MOCKTAIL_COMPAT_BIONIC_PTHREAD_KEY_RUNTIME_H_
#include <pthread.h>
#include <cstddef>
#include <cstdint>
namespace mocktail::compat {
// Android Bionic exposes pthread keys as 0x80000000 | index. Its current
// public key pool includes two libc-reserved slots and PTHREAD_KEYS_MAX
// application slots. The implementation mirrors that externally
// visible ABI without replacing the host process TLS/FS layout.
constexpr size_t kBionicPthreadKeyCount = 130;
constexpr uint32_t kBionicPthreadKeyValidFlag = uint32_t{1} << 31;
using BionicPthreadKeyDestructor = void (*)(void*);
// Implements Bionic's pthread_key_* ABI for keys registered through the
// synthetic libc.so. Host code continues to use glibc pthread keys.
class BionicPthreadKeyRuntime {
public:
static BionicPthreadKeyRuntime& Instance() noexcept;
int Create(pthread_key_t* key, BionicPthreadKeyDestructor destructor) noexcept;
int Delete(pthread_key_t key) noexcept;
void* Get(pthread_key_t key) noexcept;
int Set(pthread_key_t key, const void* value) noexcept;
private:
BionicPthreadKeyRuntime() = default;
};
bool IsBionicPthreadKey(pthread_key_t key) noexcept;
} // namespace mocktail::compat
extern "C" {
int mocktail_bionic_pthread_key_create(
pthread_key_t* key, void (*destructor)(void*));
int mocktail_bionic_pthread_key_delete(pthread_key_t key);
void* mocktail_bionic_pthread_getspecific(pthread_key_t key);
int mocktail_bionic_pthread_setspecific(pthread_key_t key,
const void* value);
} // extern "C"
#endif // MOCKTAIL_COMPAT_BIONIC_PTHREAD_KEY_RUNTIME_H_