github.com/golang/gofrontend@v0.0.0-20240429183944-60f985a78526/go/go-sha1.h (about)

     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)