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  37
  38 #pragma once
  39
  40 #include "libmemcached/csl/common.h"
  41 #include "libmemcached/csl/parser.h"
  42
  43 class Context
  44 {
  45 public:
  46   Context(const char *option_string, size_t option_string_length, memcached_st *memc_,
  47           memcached_return_t &rc_arg) :
  48     previous_token(END),
  49     scanner(NULL),
  50     buf(option_string),
  51     begin(NULL),
  52     pos(0),
  53     length(option_string_length),
  54     memc(memc_),
  55     rc(rc_arg),
  56     _is_server(false),
  57     _end(false),
  58     _has_hash(false)
  59   {
  60     _hostname[0]= 0;
  61     init_scanner();
  62     rc= MEMCACHED_SUCCESS;
  63
  64     memc->state.is_parsing= true;
  65     memcached_string_create(memc,
  66                             &_string_buffer,
  67                             1024);
  68   }
  69
  70   bool end()
  71   {
  72     return _end;
  73   }
  74
  75   void start();
  76
  77   void set_end()
  78   {
  79     rc= MEMCACHED_SUCCESS;
  80     _end= true;
  81   }
  82
  83   bool set_hash(memcached_hash_t hash);
  84
  85   void set_server()
  86   {
  87     _is_server= true;
  88   }
  89
  90   void unset_server()
  91   {
  92     _is_server= false;
  93   }
  94
  95   bool is_server() const
  96   {
  97     return _is_server;
  98   }
  99
 100   void hostname(const char*, size_t, server_t&);
 101
 102   bool string_buffer(const char*, size_t, memcached_string_t&);
 103
 104   const char *hostname() const
 105   {
 106     return _hostname;
 107   }
 108
 109   void abort(const char *, yytokentype, const char *);
 110   void error(const char *, yytokentype, const char* );
 111
 112   ~Context()
 113   {
 114     memcached_string_free(&_string_buffer);
 115     destroy_scanner();
 116     memc->state.is_parsing= false;
 117   }
 118
 119   yytokentype previous_token;
 120   void *scanner;
 121   const char *buf;
 122   const char *begin;
 123   size_t pos;
 124   size_t length;
 125   memcached_st *memc;
 126   memcached_return_t &rc;
 127
 128 protected:
 129   void init_scanner();
 130   void destroy_scanner();
 131
 132 private:
 133   bool _is_server;
 134   bool _end;
 135   char _hostname[NI_MAXHOST];
 136   bool _has_hash;
 137   memcached_string_st _string_buffer;
 138 };