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comparison gcc/go/gofrontend/go-sha1.h @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
1 // go-sha1.h -- GCC specific sha1 checksum utilities. -*- C++ -*-
2
3 // Copyright 2016 The Go Authors. All rights reserved.
4 // Use of this source code is governed by a BSD-style
5 // license that can be found in the LICENSE file.
6
7 #ifndef GO_SHA1_H
8 #define GO_SHA1_H
9
10 #include "go-system.h"
11
12 //
13 // Interface class for computation of SHA1 checksums. Front end requests
14 // one of these objects from the back end to use for computing
15 // checksums (each back end tends to have a different SHA1 implementation).
16 // Back ends are expected to create a new class that derives from this
17 // one containing an implementation.
18 //
19
20 class Go_sha1_helper
21 {
22 public:
23 virtual ~Go_sha1_helper() { }
24 virtual void process_bytes(const void* buffer, size_t len) = 0;
25 virtual std::string finish() = 0;
26 static const int checksum_len = 20;
27 };
28
29 // Call to create and return a new sha1 helper (this routine defined
30 // by the backend). Caller is responsible for deletion.
31 extern Go_sha1_helper* go_create_sha1_helper();
32
33 #endif // !defined(GO_SHA1_H)