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annotate config.c @ 995:2bc27415565b

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Fix some stuff with interrupt timing. The change in adjust_int_cycle gets Overdrive working again (vint was not being preferred over hint in some cases). One of the changes seems to have broken Fatal Rewind again, but no other regressions that I can see.
author Michael Pavone <pavone@retrodev.com>
date Sat, 30 Apr 2016 08:37:55 -0700
parents 540cc4a7d626
children 4490c9c12272
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
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1 /*
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
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2 Copyright 2013 Michael Pavone
495
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3 This file is part of BlastEm.
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
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5 */
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6 #include "tern.h"
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39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
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7 #include "util.h"
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10 #include <string.h>
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11
795
bce97fc0bb8a Fix mingw-w64 build and cross-compilation
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12 #ifdef __MINGW64_VERSION_MAJOR
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13 #define MINGW_W64_VERSION (__MINGW64_VERSION_MAJOR * 1000 + __MINGW64_VERSION_MINOR)
bce97fc0bb8a Fix mingw-w64 build and cross-compilation
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14 #else
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15 #define MINGW_W64_VERSION 0
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16 #endif
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17
bce97fc0bb8a Fix mingw-w64 build and cross-compilation
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18 #if defined(_WIN32) && (MINGW_W64_VERSION < 3003)
741
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19 char * strtok_r(char * input, char * sep, char ** state)
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20 {
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21 if (input) {
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22 *state = input;
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23 }
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24 char * ret = *state;
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25 while (**state && **state != *sep)
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26 {
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27 ++*state;
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28 }
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29 if (**state)
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30 {
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31 **state = 0;
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32 ++*state;
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33 return ret;
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34 }
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35 return NULL;
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36 }
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37 #endif
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38
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39 tern_node * parse_config_int(char **state, int started, int *line)
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40 {
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41 char *config_data, *curline;
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42 tern_node * head = NULL;
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43 config_data = started ? NULL : *state;
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44 while ((curline = strtok_r(config_data, "\n", state)))
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45 {
866
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
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46
430
7f84090ab1cd Add config file parser and default config file
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47 config_data = NULL;
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48 curline = strip_ws(curline);
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49 int len = strlen(curline);
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50 if (!len) {
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41f73c76b978 Fix some memory issues
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51 *line = *line + 1;
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7f84090ab1cd Add config file parser and default config file
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52 continue;
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53 }
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54 if (curline[0] == '#') {
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41f73c76b978 Fix some memory issues
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55 *line = *line + 1;
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56 continue;
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57 }
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58 if (curline[0] == '}') {
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59 if (started) {
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60 return head;
430
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61 }
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
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62 fatal_error("unexpected } on line %d\n", *line);
430
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63 }
866
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
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64
430
7f84090ab1cd Add config file parser and default config file
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65 char * end = curline + len - 1;
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66 if (*end == '{') {
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67 *end = 0;
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68 curline = strip_ws(curline);
796
41f73c76b978 Fix some memory issues
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69 *line = *line + 1;
766
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70 head = tern_insert_node(head, curline, parse_config_int(state, 1, line));
430
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71 } else {
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72 char * val = strip_ws(split_keyval(curline));
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73 char * key = curline;
766
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB
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diff changeset
74 if (*val) {
431
440efd7d27a9 Read key bindings from config file
Mike Pavone <pavone@retrodev.com>
parents: 430
diff changeset
75 head = tern_insert_ptr(head, key, strdup(val));
766
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Michael Pavone <pavone@retrodev.com>
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76 } else {
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77 fprintf(stderr, "Key %s is missing a value on line %d\n", key, *line);
430
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78 }
796
41f73c76b978 Fix some memory issues
=?UTF-8?q?Higor=20Eur=C3=ADpedes?= <heuripedes@gmail.com>
parents: 795
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79 *line = *line + 1;
430
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80 }
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81 }
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82 return head;
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83 }
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84
875
54ffba3768d6 Make menu stuff work on Android (theoretically)
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85 tern_node *parse_config(char * config_data)
766
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB
Michael Pavone <pavone@retrodev.com>
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86 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB
Michael Pavone <pavone@retrodev.com>
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87 int line = 1;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB
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88 return parse_config_int(&config_data, 0, &line);
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89 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB
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diff changeset
90
875
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91 tern_node *parse_config_file(char *config_path)
430
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92 {
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93 tern_node * ret = NULL;
816
7ed55a361e79 Use binary mode for reading shaders and config files so we actually get the number of bytes we expect
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94 FILE * config_file = fopen(config_path, "rb");
430
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95 if (!config_file) {
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96 goto open_fail;
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97 }
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98 long config_size = file_size(config_file);
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99 if (!config_size) {
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100 goto config_empty;
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101 }
796
41f73c76b978 Fix some memory issues
=?UTF-8?q?Higor=20Eur=C3=ADpedes?= <heuripedes@gmail.com>
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diff changeset
102 char * config_data = malloc(config_size+1);
430
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103 if (fread(config_data, 1, config_size, config_file) != config_size) {
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104 goto config_read_fail;
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105 }
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41f73c76b978 Fix some memory issues
=?UTF-8?q?Higor=20Eur=C3=ADpedes?= <heuripedes@gmail.com>
parents: 795
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106 config_data[config_size] = '\0';
41f73c76b978 Fix some memory issues
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diff changeset
107
430
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108 ret = parse_config(config_data);
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109 config_read_fail:
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110 free(config_data);
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111 config_empty:
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112 fclose(config_file);
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113 open_fail:
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114 return ret;
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115 }
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116
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diff changeset
117 tern_node *parse_bundled_config(char *config_name)
859
46bb673eed4e Load config file and rom.db from appropriate locations on Android
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diff changeset
118 {
875
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119 long confsize;
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120 char *confdata = read_bundled_file(config_name, &confsize);
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diff changeset
121 tern_node *ret = NULL;
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diff changeset
122 if (confdata) {
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123 confdata[confsize] = 0;
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124 ret = parse_config(confdata);
54ffba3768d6 Make menu stuff work on Android (theoretically)
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diff changeset
125 free(confdata);
859
46bb673eed4e Load config file and rom.db from appropriate locations on Android
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diff changeset
126 }
46bb673eed4e Load config file and rom.db from appropriate locations on Android
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diff changeset
127 return ret;
46bb673eed4e Load config file and rom.db from appropriate locations on Android
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128 }
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129
875
54ffba3768d6 Make menu stuff work on Android (theoretically)
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130 tern_node *load_config()
859
46bb673eed4e Load config file and rom.db from appropriate locations on Android
Michael Pavone <pavone@retrodev.com>
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diff changeset
131 {
876
540cc4a7d626 Fix Android build breakage
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parents: 875
diff changeset
132 char const *confdir = get_config_dir();
875
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133 char *confpath = NULL;
866
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
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parents: 859
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134 tern_node *ret;
875
54ffba3768d6 Make menu stuff work on Android (theoretically)
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diff changeset
135 if (confdir) {
54ffba3768d6 Make menu stuff work on Android (theoretically)
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136 confpath = alloc_concat(confdir, "/blastem.cfg");
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137 ret = parse_config_file(confpath);
859
46bb673eed4e Load config file and rom.db from appropriate locations on Android
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diff changeset
138 if (ret) {
875
54ffba3768d6 Make menu stuff work on Android (theoretically)
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diff changeset
139 free(confpath);
859
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140 return ret;
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141 }
430
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142 }
866
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143
875
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144 ret = parse_bundled_config("default.cfg");
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145 if (ret) {
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146 free(confpath);
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147 return ret;
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148 }
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149
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150 if (confpath) {
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151 fatal_error("Failed to find a config file at %s or in the blastem executable directory\n", confpath);
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152 } else {
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153 fatal_error("Failed to find a config file in the BlastEm executable directory and the config directory path could not be determined\n");
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154 }
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
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155 //this will never get reached, but the compiler doesn't know that. Let's make it happy
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156 return NULL;
430
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157 }