34 lines
1.0 KiB
C
34 lines
1.0 KiB
C
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// go-sha1.h -- GCC specific sha1 checksum utilities. -*- C++ -*-
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// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#ifndef GO_SHA1_H
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#define GO_SHA1_H
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#include "go-system.h"
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//
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// Interface class for computation of SHA1 checksums. Front end requests
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// one of these objects from the back end to use for computing
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// checksums (each back end tends to have a different SHA1 implementation).
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// Back ends are expected to create a new class that derives from this
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// one containing an implementation.
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//
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class Go_sha1_helper
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{
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public:
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virtual ~Go_sha1_helper() { }
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virtual void process_bytes(const void* buffer, size_t len) = 0;
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virtual std::string finish() = 0;
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static const int checksum_len = 20;
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};
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// Call to create and return a new sha1 helper (this routine defined
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// by the backend). Caller is responsible for deletion.
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extern Go_sha1_helper* go_create_sha1_helper();
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#endif // !defined(GO_SHA1_H)
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