git.m6w6.name Git - awesomized/libmemcached/blob - src/util/operation.hpp

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   2  *
   3  *  DataDifferential Utility Library
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   5  *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
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  37
  38 #pragma once
  39
  40
  41 #include <cstring>
  42 #include <iosfwd>
  43 #include <vector>
  44
  45 namespace datadifferential {
  46 namespace util {
  47
  48 class Operation {
  49   typedef std::vector<char> Packet;
  50
  51 public:
  52   typedef std::vector<Operation *> vector;
  53
  54   Operation(const char *command, size_t command_length, bool expect_response= true) :
  55     _expect_response(expect_response),
  56     packet(),
  57     _response()
  58   {
  59     packet.resize(command_length);
  60     memcpy(&packet[0], command, command_length);
  61   }
  62
  63   ~Operation()
  64   { }
  65
  66   size_t size() const
  67   {
  68     return packet.size();
  69   }
  70
  71   const char* ptr() const
  72   {
  73     return &(packet)[0];
  74   }
  75
  76   bool has_response() const
  77   {
  78     return _expect_response;
  79   }
  80
  81   void push(const char *buffer, size_t buffer_size)
  82   {
  83     size_t response_size= _response.size();
  84     _response.resize(response_size +buffer_size);
  85     memcpy(&_response[0] +response_size, buffer, buffer_size);
  86   }
  87
  88   // Return false on error
  89   bool response(std::string &);
  90
  91   bool reconnect() const
  92   {
  93     return false;
  94   }
  95
  96 private:
  97   bool _expect_response;
  98   Packet packet;
  99   Packet _response;
 100 };
 101
 102 } /* namespace util */
 103 } /* namespace datadifferential */