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Viewing changes to plugin/multi_thread/multi_thread.cc

  • Committer: Brian Aker
  • Date: 2010-11-11 04:18:45 UTC
  • mfrom: (1897.4.20 rip-plugin-sysvar)
  • Revision ID: brian@tangent.org-20101111041845-b7td4vnx4wu01ga1
Merge in changes from Monty for sys var.

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plugin/multi_thread/multi_thread.cc
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using namespace drizzled;
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/* Configuration variables. */
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static uint32_t max_threads;
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/* Global's (TBR) */
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static MultiThreadScheduler *scheduler= NULL;
 
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typedef constrained_check<uint32_t, 4096, 1> max_threads_constraint;
 
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static max_threads_constraint max_threads;
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namespace drizzled
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{
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static int init(drizzled::module::Context &context)
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{
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  const module::option_map &vm= context.getOptions();
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  if (vm.count("max-threads"))
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  {
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    if (max_threads > 4096 || max_threads < 1)
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    {
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      errmsg_printf(ERRMSG_LVL_ERROR, _("Invalid value for max-threads\n"));
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      return 1;
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    }
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  }
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  scheduler= new MultiThreadScheduler("multi_thread");
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  context.add(scheduler);
 
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  context.add(new MultiThreadScheduler("multi_thread"));
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  return 0;
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}
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static DRIZZLE_SYSVAR_UINT(max_threads, max_threads,
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                           PLUGIN_VAR_RQCMDARG,
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                           N_("Maximum number of user threads available."),
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                           NULL, NULL, 2048, 1, 4096, 0);
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static void init_options(drizzled::module::option_context &context)
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{
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  context("max-threads",
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          po::value<uint32_t>(&max_threads)->default_value(2048),
 
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          po::value<max_threads_constraint>(&max_threads)->default_value(2048),
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          N_("Maximum number of user threads available."));
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}
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static drizzle_sys_var* sys_variables[]= {
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  DRIZZLE_SYSVAR(max_threads),
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  NULL
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};
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DRIZZLE_DECLARE_PLUGIN
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{
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  DRIZZLE_VERSION_ID,
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  "One Thread Per Session Scheduler",
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  PLUGIN_LICENSE_GPL,
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  init, /* Plugin Init */
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  sys_variables,   /* system variables */
 
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  NULL,   /* system variables */
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  init_options    /* config options */
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}
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DRIZZLE_DECLARE_PLUGIN_END;