src/nobug_nothread.c

   1 /*
   2  This file is part of the NoBug debugging library.
   3
   4  Copyright (C)
   5    2007, 2008, 2009, 2010,              Christian Thaeter <ct@pipapo.org>
   6
   7  This program is free software; you can redistribute it and/or modify
   8  it under the terms of the GNU General Public License as published by
   9  the Free Software Foundation; either version 2 of the License, or
  10  (at your option) any later version.
  11
  12  This program is distributed in the hope that it will be useful,
  13  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  GNU General Public License for more details.
  16
  17  You should have received a copy of the GNU General Public License
  18  along with this program; if not, contact Christian Thaeter <ct@pipapo.org>.
  19 */
  20 #define NOBUG_LIBNOBUG_C
  21 #include "nobug.h"
  22 #include "llist.h"
  23
  24
  25 /*
  26   Fake thread id's for non-threaded processes, only a single static one
  27 */
  28 static struct nobug_tls_data nothread_id = {
  29   .thread_id = NULL,
  30   .thread_num = 0,
  31   .thread_gen = 0,
  32   .data = NULL,
  33   .coverage_disable_cnt = 0,
  34   //struct llist_struct res_stack;                /* resources of this thread */
  35 };
  36
  37 struct nobug_tls_data*
  38 nobug_thread_set (const char* name)
  39 {
  40   struct nobug_tls_data * tls = &nothread_id;
  41
  42   free ((char*)tls->thread_id);
  43   ++tls->thread_gen;
  44
  45   char buf[256];
  46   snprintf (buf, 256, "%s_%d", name, tls->thread_num);
  47   tls->thread_id = strdup(buf);
  48   if (!tls->thread_id)
  49     {
  50       nobug_log (&nobug_flag_nobug, LOG_EMERG, "NOBUG",
  51                  (const struct nobug_context){"-", 0, "nobug_thread_set"},
  52                  " failed thread id allocation");
  53       abort();
  54     }
  55
  56   return tls;
  57 }
  58
  59
  60 struct nobug_tls_data*
  61 nobug_thread_get (void)
  62 {
  63   struct nobug_tls_data* tls = &nothread_id;
  64   if (!tls->thread_id)
  65     return nobug_thread_set ("thread");
  66
  67   return tls;
  68 }
  69
  70
  71 const char*
  72 nobug_thread_id_set (const char* name)
  73 {
  74   return nobug_thread_set (name) -> thread_id;
  75 }
  76
  77
  78 const char*
  79 nobug_thread_id_get (void)
  80 {
  81   return nobug_thread_get () -> thread_id;
  82 }
  83
  84
  85 void**
  86 nobug_thread_data (void)
  87 {
  88   return &nobug_thread_get () -> data;
  89 }
  90