|
111
|
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)
|
