test-suite/standalone/test-smob-mark.c

   1 /* Copyright (C) 2013 Free Software Foundation, Inc.
   2  *
   3  * This library is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU Lesser General Public License
   5  * as published by the Free Software Foundation; either version 3 of
   6  * the License, or (at your option) any later version.
   7  *
   8  * This library is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * Lesser General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public
  14  * License along with this library; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  16  * 02110-1301 USA
  17  */
  18
  19 #if HAVE_CONFIG_H
  20 #include <config.h>
  21 #endif
  22
  23 #include <assert.h>
  24 #include <libguile.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27
  28 #define SMOBS_COUNT (10000)
  29
  30 struct x_tag
  31 {
  32   SCM scm_value;
  33   int c_value;
  34 };
  35
  36 typedef struct x_tag x_t;
  37
  38 unsigned int mark_call_count = 0;
  39
  40 static scm_t_bits x_tag;
  41 static SCM make_x (void);
  42 static SCM mark_x (SCM x);
  43 static int print_x (SCM x, SCM port, scm_print_state * pstate);
  44 static size_t free_x (SCM x);
  45 static void init_smob_type (void);
  46 static void test_scm_smob_mark (void);
  47
  48 static SCM
  49 make_x ()
  50 {
  51   static int i = 0;
  52   SCM s_x;
  53   x_t *c_x;
  54
  55   i++;
  56   c_x = (x_t *) scm_gc_malloc (sizeof (x_t), "x");
  57   c_x->scm_value = scm_from_int (i);
  58   c_x->c_value = i;
  59   SCM_NEWSMOB (s_x, x_tag, c_x);
  60   return s_x;
  61 }
  62
  63 static SCM
  64 mark_x (SCM x)
  65 {
  66   x_t *c_x;
  67   c_x = (x_t *) SCM_SMOB_DATA (x);
  68   scm_gc_mark (c_x->scm_value);
  69   mark_call_count++;
  70   return SCM_BOOL_F;
  71 }
  72
  73 static size_t
  74 free_x (SCM x)
  75 {
  76   x_t *c_x;
  77   c_x = (x_t *) SCM_SMOB_DATA (x);
  78   scm_gc_free (c_x, sizeof (x_t), "x");
  79   c_x = NULL;
  80   return 0;
  81 }
  82
  83 static int
  84 print_x (SCM x, SCM port, scm_print_state * pstate SCM_UNUSED)
  85 {
  86   x_t *c_x = (x_t *) SCM_SMOB_DATA (x);
  87   scm_puts ("#<x ", port);
  88   if (c_x == (x_t *) NULL)
  89     scm_puts ("(freed)", port);
  90   else
  91     scm_write (c_x->scm_value, port);
  92   scm_puts (">", port);
  93
  94   return 1;
  95 }
  96
  97 static void
  98 test_scm_smob_mark ()
  99 {
 100   int i;
 101   mark_call_count = 0;
 102   for (i = 0; i < SMOBS_COUNT; i++)
 103     make_x ();
 104   scm_gc ();
 105   if (mark_call_count < SMOBS_COUNT)
 106     {
 107       fprintf (stderr, "FAIL: SMOB mark function called for each SMOB\n");
 108       exit (EXIT_FAILURE);
 109     }
 110 }
 111
 112 static void
 113 init_smob_type ()
 114 {
 115   x_tag = scm_make_smob_type ("x", sizeof (x_t));
 116   scm_set_smob_free (x_tag, free_x);
 117   scm_set_smob_print (x_tag, print_x);
 118   scm_set_smob_mark (x_tag, mark_x);
 119 }
 120
 121 static void
 122 tests (void *data, int argc, char **argv)
 123 {
 124   init_smob_type ();
 125   test_scm_smob_mark ();
 126 }
 127
 128 int
 129 main (int argc, char *argv[])
 130 {
 131   scm_boot_guile (argc, argv, tests, NULL);
 132   return 0;
 133 }