git.m6w6.name Git - awesomized/libmemcached/blob - src/libmemcached/csl/context.h

   1 /*
   2     +--------------------------------------------------------------------+
   3     | libmemcached - C/C++ Client Library for memcached                  |
   4     +--------------------------------------------------------------------+
   5     | Redistribution and use in source and binary forms, with or without |
   6     | modification, are permitted under the terms of the BSD license.    |
   7     | You should have received a copy of the license in a bundled file   |
   8     | named LICENSE; in case you did not receive a copy you can review   |
   9     | the terms online at: https://opensource.org/licenses/BSD-3-Clause  |
  10     +--------------------------------------------------------------------+
  11     | Copyright (c) 2006-2014 Brian Aker   https://datadifferential.com/ |
  12     | Copyright (c) 2020 Michael Wallner   <mike@php.net>                |
  13     +--------------------------------------------------------------------+
  14 */
  15
  16 #pragma once
  17
  18 #include "libmemcached/csl/common.h"
  19 #include "libmemcached/csl/parser.h"
  20
  21 class Context {
  22 public:
  23   Context(const char *option_string, size_t option_string_length, memcached_st *memc_,
  24           memcached_return_t &rc_arg)
  25   : previous_token(END)
  26   , scanner(NULL)
  27   , buf(option_string)
  28   , begin(NULL)
  29   , pos(0)
  30   , length(option_string_length)
  31   , memc(memc_)
  32   , rc(rc_arg)
  33   , _is_server(false)
  34   , _end(false)
  35   , _has_hash(false) {
  36     _hostname[0] = 0;
  37     init_scanner();
  38     rc = MEMCACHED_SUCCESS;
  39
  40     memc->state.is_parsing = true;
  41     memcached_string_create(memc, &_string_buffer, 1024);
  42   }
  43
  44   bool end() { return _end; }
  45
  46   void start();
  47
  48   void set_end() {
  49     rc = MEMCACHED_SUCCESS;
  50     _end = true;
  51   }
  52
  53   bool set_hash(memcached_hash_t hash);
  54
  55   void set_server() { _is_server = true; }
  56
  57   void unset_server() { _is_server = false; }
  58
  59   bool is_server() const { return _is_server; }
  60
  61   void hostname(const char *, size_t, server_t &);
  62
  63   bool string_buffer(const char *, size_t, memcached_string_t &);
  64
  65   const char *hostname() const { return _hostname; }
  66
  67   void abort(const char *, config_tokentype, const char *);
  68   void error(const char *, config_tokentype, const char *);
  69
  70   ~Context() {
  71     memcached_string_free(&_string_buffer);
  72     destroy_scanner();
  73     memc->state.is_parsing = false;
  74   }
  75
  76   config_tokentype previous_token;
  77   void *scanner;
  78   const char *buf;
  79   const char *begin;
  80   size_t pos;
  81   size_t length;
  82   memcached_st *memc;
  83   memcached_return_t &rc;
  84
  85 protected:
  86   void init_scanner();
  87   void destroy_scanner();
  88
  89 private:
  90   bool _is_server;
  91   bool _end;
  92   char _hostname[NI_MAXHOST];
  93   bool _has_hash;
  94   memcached_string_st _string_buffer;
  95 };