lib/pthreadpool/pthreadpool_sync.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  * sync dummy implementation of the pthreadpool API
   4  * Copyright (C) Volker Lendecke 2009
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20
  21 #include "replace.h"
  22 #include "pthreadpool.h"
  23
  24 struct pthreadpool {
  25         bool stopped;
  26
  27         /*
  28          * Indicate job completion
  29          */
  30         int (*signal_fn)(int jobid,
  31                          void (*job_fn)(void *private_data),
  32                          void *job_fn_private_data,
  33                          void *private_data);
  34         void *signal_fn_private_data;
  35 };
  36
  37 int pthreadpool_init(unsigned max_threads, struct pthreadpool **presult,
  38                      int (*signal_fn)(int jobid,
  39                                       void (*job_fn)(void *private_data),
  40                                       void *job_fn_private_data,
  41                                       void *private_data),
  42                      void *signal_fn_private_data)
  43 {
  44         struct pthreadpool *pool;
  45
  46         pool = (struct pthreadpool *)calloc(1, sizeof(struct pthreadpool));
  47         if (pool == NULL) {
  48                 return ENOMEM;
  49         }
  50         pool->stopped = false;
  51         pool->signal_fn = signal_fn;
  52         pool->signal_fn_private_data = signal_fn_private_data;
  53
  54         *presult = pool;
  55         return 0;
  56 }
  57
  58 size_t pthreadpool_max_threads(struct pthreadpool *pool)
  59 {
  60         return 0;
  61 }
  62
  63 size_t pthreadpool_queued_jobs(struct pthreadpool *pool)
  64 {
  65         return 0;
  66 }
  67
  68 int pthreadpool_add_job(struct pthreadpool *pool, int job_id,
  69                         void (*fn)(void *private_data), void *private_data)
  70 {
  71         if (pool->stopped) {
  72                 return EINVAL;
  73         }
  74
  75         fn(private_data);
  76
  77         return pool->signal_fn(job_id, fn, private_data,
  78                                pool->signal_fn_private_data);
  79 }
  80
  81 size_t pthreadpool_cancel_job(struct pthreadpool *pool, int job_id,
  82                               void (*fn)(void *private_data), void *private_data)
  83 {
  84         return 0;
  85 }
  86
  87 int pthreadpool_stop(struct pthreadpool *pool)
  88 {
  89         pool->stopped = true;
  90         return 0;
  91 }
  92
  93 int pthreadpool_destroy(struct pthreadpool *pool)
  94 {
  95         free(pool);
  96         return 0;
  97 }