43d241c28d
- Add arena allocator for zero-allocation hot paths - Add thread pool for parallel operations - Add mmap utilities for memory-mapped I/O - Implement queue_index with heap-based priority queue - Implement dataset_hash with SIMD support (SHA-NI, ARMv8) - Add runtime SIMD detection for cross-platform correctness - Add comprehensive tests and benchmarks
28 lines
759 B
C
28 lines
759 B
C
#pragma once
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#include "sha256_base.h"
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#include <stddef.h>
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#include <stdint.h>
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// SHA256 state - just data
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struct Sha256State {
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uint32_t state[8];
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uint8_t buffer[64];
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size_t buffer_len;
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uint64_t total_len;
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TransformFunc transform_fn;
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};
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// Initialize hasher
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void sha256_init(Sha256State* hasher);
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// Incremental hashing
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void sha256_update(Sha256State* hasher, const uint8_t* data, size_t len);
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void sha256_finalize(Sha256State* hasher, uint8_t out[32]);
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// Convenience: hash entire buffer at once
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// out_hex must be 65 bytes (64 hex chars + null)
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void sha256_hash_to_hex(const uint8_t* data, size_t len, char* out_hex);
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// Get currently used implementation name
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const char* sha256_impl_name(void);
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int sha256_has_hardware_accel(void);
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