git.m6w6.name Git - awesomized/libmemcached/blob - src/bin/memaslap/ms_thread.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 #ifndef MS_THREAD_H
  17 #define MS_THREAD_H
  18
  19 #include <sched.h>
  20 #include "ms_conn.h"
  21
  22 #ifdef __cplusplus
  23 extern "C" {
  24 #endif
  25
  26 /** Time relative to server start. Smaller than time_t on 64-bit systems. */
  27 typedef unsigned int rel_time_t;
  28
  29 /* Used to store the context of each thread */
  30 typedef struct thread_ctx {
  31   uint32_t thd_idx;         /* the thread index */
  32   uint32_t nconns;          /* how many connections included by the thread */
  33   uint32_t srv_idx;         /* index of the thread */
  34   int tps_perconn;          /* expected throughput per connection */
  35   int64_t exec_num_perconn; /* execute number per connection */
  36 } ms_thread_ctx_t;
  37
  38 /* Used to store the private variables of each thread */
  39 typedef struct thread {
  40   ms_conn_t *conn;       /* conn array to store all the conn in the thread */
  41   uint32_t nactive_conn; /* how many connects are active */
  42
  43   ms_thread_ctx_t *thread_ctx; /* thread context from the caller */
  44   struct event_base *base;     /* libevent handler created by this thread */
  45
  46   rel_time_t curr_time;     /* current time */
  47   struct event clock_event; /* clock event to time each one second */
  48   bool initialized;         /* whether clock_event has been initialized */
  49
  50   struct timeval startup_time; /* start time of the thread */
  51 } ms_thread_t;
  52
  53 /* initialize threads */
  54 void ms_thread_init(void);
  55
  56 /* cleanup some resource of threads when all the threads exit */
  57 void ms_thread_cleanup(void);
  58
  59 #ifdef __cplusplus
  60 }
  61 #endif
  62
  63 #endif /* end of MS_THREAD_H */