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Viewing changes to plugin/uuid_function/uuid_function.cc

  • Committer: Andrew Hutchings
  • Date: 2010-11-09 13:38:01 UTC
  • mto: (1919.1.2 trunk)
  • mto: This revision was merged to the branch mainline in revision 1920.
  • Revision ID: andrew@linuxjedi.co.uk-20101109133801-byjzsao76346395x
Add FLUSH GLOBAL STATUS; command
Clears the global status variables for the server

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Lines of Context:
plugin/uuid_function/uuid_function.cc
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#define UUID_LENGTH (8+1+4+1+4+1+4+1+12)
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namespace plugin {
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namespace uuid {
 
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using namespace drizzled;
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class Generate: public drizzled::Item_str_func
 
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class UuidFunction: public Item_str_func
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{
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public:
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  Generate(): drizzled::Item_str_func() {}
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  void fix_length_and_dec()
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  {
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    collation.set(drizzled::system_charset_info);
 
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  UuidFunction(): Item_str_func() {}
 
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  void fix_length_and_dec() {
 
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    collation.set(system_charset_info);
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    /*
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       NOTE! uuid() should be changed to use 'ascii'
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       charset when hex(), format(), md5(), etc, and implicit
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       number-to-string conversion will use 'ascii'
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    */
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    max_length= UUID_LENGTH * drizzled::system_charset_info->mbmaxlen;
 
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    max_length= UUID_LENGTH * system_charset_info->mbmaxlen;
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  }
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  const char *func_name() const{ return "uuid"; }
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  drizzled::String *val_str(drizzled::String *);
 
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  String *val_str(String *);
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};
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drizzled::String *Generate::val_str(drizzled::String *str)
 
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String *UuidFunction::val_str(String *str)
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{
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  uuid_t uu;
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  char *uuid_string;
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  /* 36 characters for uuid string +1 for NULL */
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  str->realloc(UUID_LENGTH+1);
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  str->length(UUID_LENGTH);
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  str->set_charset(drizzled::system_charset_info);
 
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  str->set_charset(system_charset_info);
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  uuid_string= (char *) str->ptr();
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  uuid_generate(uu);
 
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  uuid_generate_random(uu);
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  uuid_unparse(uu, uuid_string);
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  return str;
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}
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} // uuid
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} // plugin
 
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plugin::Create_function<UuidFunction> *uuid_function= NULL;
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static int initialize(drizzled::module::Context &context)
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{
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  context.add(new drizzled::plugin::Create_function<plugin::uuid::Generate>("uuid"));
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  uuid_function= new plugin::Create_function<UuidFunction>("uuid");
 
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  context.add(uuid_function);
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  return 0;
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}
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{
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  DRIZZLE_VERSION_ID,
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  "uuid",
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  "1.1",
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  "Stewart Smith, Brian Aker",
 
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  "1.0",
 
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  "Stewart Smith",
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  "UUID() function using libuuid",
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  drizzled::PLUGIN_LICENSE_GPL,
 
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  PLUGIN_LICENSE_GPL,
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  initialize, /* Plugin Init */
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  NULL,   /* system variables */
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  NULL    /* config options */