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   1 /*
   2  * Copyright © 2016 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  */
  14
  15 #include "ao_scheme.h"
  16 #include <stdio.h>
  17
  18 static FILE *ao_scheme_file;
  19 static int newline = 1;
  20
  21 static char save_file[] = "scheme.image";
  22
  23 int
  24 ao_scheme_os_save(void)
  25 {
  26         FILE    *save = fopen(save_file, "w");
  27
  28         if (!save) {
  29                 perror(save_file);
  30                 return 0;
  31         }
  32         fwrite(ao_scheme_pool, 1, AO_SCHEME_POOL_TOTAL, save);
  33         fclose(save);
  34         return 1;
  35 }
  36
  37 int
  38 ao_scheme_os_restore_save(struct ao_scheme_os_save *save, int offset)
  39 {
  40         FILE    *restore = fopen(save_file, "r");
  41         size_t  ret;
  42
  43         if (!restore) {
  44                 perror(save_file);
  45                 return 0;
  46         }
  47         fseek(restore, offset, SEEK_SET);
  48         ret = fread(save, sizeof (struct ao_scheme_os_save), 1, restore);
  49         fclose(restore);
  50         if (ret != 1)
  51                 return 0;
  52         return 1;
  53 }
  54
  55 int
  56 ao_scheme_os_restore(void)
  57 {
  58         FILE    *restore = fopen(save_file, "r");
  59         size_t  ret;
  60
  61         if (!restore) {
  62                 perror(save_file);
  63                 return 0;
  64         }
  65         ret = fread(ao_scheme_pool, 1, AO_SCHEME_POOL_TOTAL, restore);
  66         fclose(restore);
  67         if (ret != AO_SCHEME_POOL_TOTAL)
  68                 return 0;
  69         return 1;
  70 }
  71
  72 int
  73 ao_scheme_getc(void)
  74 {
  75         int c;
  76
  77         if (ao_scheme_file)
  78                 return getc(ao_scheme_file);
  79
  80         if (newline) {
  81                 if (ao_scheme_read_stack)
  82                         printf("+ ");
  83                 else
  84                         printf("> ");
  85                 newline = 0;
  86         }
  87         c = getchar();
  88         if (c == '\n')
  89                 newline = 1;
  90         return c;
  91 }
  92
  93 int
  94 main (int argc, char **argv)
  95 {
  96         (void) argc;
  97
  98         while (*++argv) {
  99                 ao_scheme_file = fopen(*argv, "r");
 100                 if (!ao_scheme_file) {
 101                         perror(*argv);
 102                         exit(1);
 103                 }
 104                 ao_scheme_read_eval_print();
 105                 fclose(ao_scheme_file);
 106                 ao_scheme_file = NULL;
 107         }
 108         ao_scheme_read_eval_print();
 109
 110         printf ("collects: full: %d incremental %d\n",
 111                 ao_scheme_collects[AO_SCHEME_COLLECT_FULL],
 112                 ao_scheme_collects[AO_SCHEME_COLLECT_INCREMENTAL]);
 113
 114         printf ("freed: full %d incremental %d\n",
 115                 ao_scheme_freed[AO_SCHEME_COLLECT_FULL],
 116                 ao_scheme_freed[AO_SCHEME_COLLECT_INCREMENTAL]);
 117
 118         printf("loops: full %d incremental %d\n",
 119                 ao_scheme_loops[AO_SCHEME_COLLECT_FULL],
 120                 ao_scheme_loops[AO_SCHEME_COLLECT_INCREMENTAL]);
 121
 122         printf("loops per collect: full %f incremental %f\n",
 123                (double) ao_scheme_loops[AO_SCHEME_COLLECT_FULL] /
 124                (double) ao_scheme_collects[AO_SCHEME_COLLECT_FULL],
 125                (double) ao_scheme_loops[AO_SCHEME_COLLECT_INCREMENTAL] /
 126                (double) ao_scheme_collects[AO_SCHEME_COLLECT_INCREMENTAL]);
 127
 128         printf("freed per collect: full %f incremental %f\n",
 129                (double) ao_scheme_freed[AO_SCHEME_COLLECT_FULL] /
 130                (double) ao_scheme_collects[AO_SCHEME_COLLECT_FULL],
 131                (double) ao_scheme_freed[AO_SCHEME_COLLECT_INCREMENTAL] /
 132                (double) ao_scheme_collects[AO_SCHEME_COLLECT_INCREMENTAL]);
 133
 134         printf("freed per loop: full %f incremental %f\n",
 135                (double) ao_scheme_freed[AO_SCHEME_COLLECT_FULL] /
 136                (double) ao_scheme_loops[AO_SCHEME_COLLECT_FULL],
 137                (double) ao_scheme_freed[AO_SCHEME_COLLECT_INCREMENTAL] /
 138                (double) ao_scheme_loops[AO_SCHEME_COLLECT_INCREMENTAL]);
 139 }