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annotate config.c @ 1971:80920c21bb52

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Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
author Michael Pavone <pavone@retrodev.com>
date Fri, 08 May 2020 11:40:30 -0700
parents 5433252329fb
children 193b804c9845
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rev   line source
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1 /*
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2 Copyright 2013 Michael Pavone
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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.
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5 */
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6 #include "tern.h"
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7 #include "util.h"
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8 #include "paths.h"
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9 #include "config.h"
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10 #include <stdio.h>
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11 #include <stdlib.h>
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12 #include <string.h>
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13
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14 #ifdef __MINGW64_VERSION_MAJOR
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15 #define MINGW_W64_VERSION (__MINGW64_VERSION_MAJOR * 1000 + __MINGW64_VERSION_MINOR)
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16 #else
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17 #define MINGW_W64_VERSION 0
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18 #endif
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19
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20 #if defined(_WIN32) && (MINGW_W64_VERSION < 3003)
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21 char * strtok_r(char * input, char * sep, char ** state)
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22 {
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23 if (input) {
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24 *state = input;
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25 }
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26 char * ret = *state;
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27 while (**state && **state != *sep)
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28 {
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29 ++*state;
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30 }
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31 if (**state)
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32 {
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33 **state = 0;
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34 ++*state;
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35 return ret;
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36 }
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37 return NULL;
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38 }
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39 #endif
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40
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41 static tern_node * parse_config_int(char **state, int started, int *line)
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42 {
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43 char *config_data, *curline;
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44 tern_node * head = NULL;
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45 config_data = started ? NULL : *state;
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46 while ((curline = strtok_r(config_data, "\n", state)))
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47 {
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48
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49 config_data = NULL;
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50 curline = strip_ws(curline);
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51 int len = strlen(curline);
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52 if (!len) {
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53 (*line)++;
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54 continue;
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55 }
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56 if (curline[0] == '#') {
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57 (*line)++;
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58 continue;
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59 }
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60 if (curline[0] == '}') {
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61 if (started) {
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62 return head;
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63 }
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64 fatal_error("unexpected } on line %d\n", *line);
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65 }
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66
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67 char * end = curline + len - 1;
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68 if (*end == '{') {
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69 *end = 0;
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70 curline = strip_ws(curline);
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71 (*line)++;
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72 head = tern_insert_node(head, curline, parse_config_int(state, 1, line));
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73 } else {
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74 char * val = strip_ws(split_keyval(curline));
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75 char * key = curline;
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76 if (*val) {
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77 head = tern_insert_ptr(head, key, strdup(val));
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78 } else {
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79 fprintf(stderr, "Key %s is missing a value on line %d\n", key, *line);
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80 }
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81 (*line)++;
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82 }
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83 }
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84 return head;
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85 }
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86
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87 tern_node *parse_config(char * config_data)
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88 {
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89 int line = 1;
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90 return parse_config_int(&config_data, 0, &line);
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91 }
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92
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93 typedef struct {
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94 char *buf;
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95 uint32_t capacity;
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96 uint32_t size;
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97 uint32_t indent;
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98 } serialize_state;
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99
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100 static void ensure_buf_capacity(uint32_t ensure, serialize_state *state)
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101 {
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102 if (ensure + state->size > state->capacity) {
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103 state->capacity = state->capacity * 2;
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104 state->buf = realloc(state->buf, state->capacity);
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105 }
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106 }
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107
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108 static void indent(serialize_state *state)
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109 {
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110 memset(state->buf + state->size, '\t', state->indent);
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111 state->size += state->indent;
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112 }
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113
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114 static void serialize_config_int(tern_node *config, serialize_state *state);
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115
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116 static void serialize_iter(char *key, tern_val val, uint8_t valtype, void *data)
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117 {
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118 serialize_state *state = data;
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119 uint32_t keylen = strlen(key);
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120 uint32_t vallen = 0;
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121 if (valtype == TVAL_PTR) {
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122 vallen = strlen(val.ptrval);
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123 }
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124 ensure_buf_capacity(state->indent + keylen + 2 + vallen, state);
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125 state->buf[state->size++] = '\n';
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126 indent(state);
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127 memcpy(state->buf + state->size, key, keylen);
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128 state->size += keylen;
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129 state->buf[state->size++] = ' ';
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130 if (valtype == TVAL_PTR) {
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131 memcpy(state->buf + state->size, val.ptrval, vallen);
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132 state->size += vallen;
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133 } else {
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134 serialize_config_int(val.ptrval, state);
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135 }
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136 }
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137
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138 static void serialize_config_int(tern_node *config, serialize_state *state)
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139 {
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140 ensure_buf_capacity(1, state);
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141 state->buf[state->size++] = '{';
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Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
142 state->indent++;
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
143
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
144 tern_foreach(config, serialize_iter, state);
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
145
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
146 --state->indent;
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
147 ensure_buf_capacity(2 + state->indent, state);
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
148 state->buf[state->size++] = '\n';
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
149 indent(state);
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
150 state->buf[state->size++] = '}';
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
151 }
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
152
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
153 char *serialize_config(tern_node *config, uint32_t *size_out)
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
154 {
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
155 serialize_state state = {
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
156 .size = 0,
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
157 .capacity = 1024,
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
158 .indent = 0
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
159 };
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
160 state.buf = malloc(state.capacity);
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
161 tern_foreach(config, serialize_iter, &state);
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
162 //serialize_config_int(config, &state);
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
163 *size_out = state.size;
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
164 return state.buf;
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
165 }
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
166
875
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
167 tern_node *parse_config_file(char *config_path)
430
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
168 {
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
169 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
Michael Pavone <pavone@retrodev.com>
parents: 799
diff changeset
170 FILE * config_file = fopen(config_path, "rb");
430
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
171 if (!config_file) {
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
172 goto open_fail;
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
173 }
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
174 long config_size = file_size(config_file);
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
175 if (!config_size) {
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
176 goto config_empty;
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
177 }
1783
eda8df5bc74c Minor cleanup
Michael Pavone <pavone@retrodev.com>
parents: 1693
diff changeset
178 char *config_data = calloc(config_size + 1, 1);
430
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
179 if (fread(config_data, 1, config_size, config_file) != config_size) {
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
180 goto config_read_fail;
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
181 }
796
41f73c76b978 Fix some memory issues
=?UTF-8?q?Higor=20Eur=C3=ADpedes?= <heuripedes@gmail.com>
parents: 795
diff changeset
182
430
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
183 ret = parse_config(config_data);
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
184 config_read_fail:
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
185 free(config_data);
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
186 config_empty:
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
187 fclose(config_file);
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
188 open_fail:
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
189 return ret;
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
190 }
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
191
1489
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
192 uint8_t serialize_config_file(tern_node *config, char *path)
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
193 {
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
194 FILE *f = fopen(path, "w");
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
195 if (!f) {
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
196 return 0;
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
197 }
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
198 uint32_t buf_size;
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
199 char *buffer = serialize_config(config, &buf_size);
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
200 uint8_t ret = buf_size == fwrite(buffer, 1, buf_size, f);
1593
24508cb54f87 Fix a number of other memory errors (mostly leaks again) identified by valgrind
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
201 free(buffer);
1489
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
202 fclose(f);
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
203 return ret;
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
204 }
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
205
875
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
206 tern_node *parse_bundled_config(char *config_name)
859
46bb673eed4e Load config file and rom.db from appropriate locations on Android
Michael Pavone <pavone@retrodev.com>
parents: 816
diff changeset
207 {
1693
ba3fb7a3be6b Added some Makefile options to build a packaging friendly executable
Michael Pavone <pavone@retrodev.com>
parents: 1599
diff changeset
208 tern_node *ret = NULL;
ba3fb7a3be6b Added some Makefile options to build a packaging friendly executable
Michael Pavone <pavone@retrodev.com>
parents: 1599
diff changeset
209 #ifdef CONFIG_PATH
ba3fb7a3be6b Added some Makefile options to build a packaging friendly executable
Michael Pavone <pavone@retrodev.com>
parents: 1599
diff changeset
210 if (!strcmp("default.cfg", config_name) || !strcmp("blastem.cfg", config_name)) {
ba3fb7a3be6b Added some Makefile options to build a packaging friendly executable
Michael Pavone <pavone@retrodev.com>
parents: 1599
diff changeset
211 char *confpath = path_append(CONFIG_PATH, config_name);
ba3fb7a3be6b Added some Makefile options to build a packaging friendly executable
Michael Pavone <pavone@retrodev.com>
parents: 1599
diff changeset
212 ret = parse_config_file(confpath);
ba3fb7a3be6b Added some Makefile options to build a packaging friendly executable
Michael Pavone <pavone@retrodev.com>
parents: 1599
diff changeset
213 free(confpath);
ba3fb7a3be6b Added some Makefile options to build a packaging friendly executable
Michael Pavone <pavone@retrodev.com>
parents: 1599
diff changeset
214 } else {
ba3fb7a3be6b Added some Makefile options to build a packaging friendly executable
Michael Pavone <pavone@retrodev.com>
parents: 1599
diff changeset
215 #endif
1140
4490c9c12272 Detect system type from filename if header based methods fail. Allow overriding system type from command line.
Michael Pavone <pavone@retrodev.com>
parents: 876
diff changeset
216 uint32_t confsize;
875
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
217 char *confdata = read_bundled_file(config_name, &confsize);
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
218 if (confdata) {
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
219 confdata[confsize] = 0;
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
220 ret = parse_config(confdata);
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
221 free(confdata);
859
46bb673eed4e Load config file and rom.db from appropriate locations on Android
Michael Pavone <pavone@retrodev.com>
parents: 816
diff changeset
222 }
1693
ba3fb7a3be6b Added some Makefile options to build a packaging friendly executable
Michael Pavone <pavone@retrodev.com>
parents: 1599
diff changeset
223 #ifdef CONFIG_PATH
ba3fb7a3be6b Added some Makefile options to build a packaging friendly executable
Michael Pavone <pavone@retrodev.com>
parents: 1599
diff changeset
224 }
ba3fb7a3be6b Added some Makefile options to build a packaging friendly executable
Michael Pavone <pavone@retrodev.com>
parents: 1599
diff changeset
225 #endif
859
46bb673eed4e Load config file and rom.db from appropriate locations on Android
Michael Pavone <pavone@retrodev.com>
parents: 816
diff changeset
226 return ret;
46bb673eed4e Load config file and rom.db from appropriate locations on Android
Michael Pavone <pavone@retrodev.com>
parents: 816
diff changeset
227 }
46bb673eed4e Load config file and rom.db from appropriate locations on Android
Michael Pavone <pavone@retrodev.com>
parents: 816
diff changeset
228
1852
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
229 tern_node *load_overrideable_config(char *name, char *bundled_name, uint8_t *used_config_dir)
1599
1fc61c844ec5 Allow selecting controller type when controllers have an SDL 2 mapping, but heuristics fail to idenify details
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
230 {
1fc61c844ec5 Allow selecting controller type when controllers have an SDL 2 mapping, but heuristics fail to idenify details
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
231 char const *confdir = get_config_dir();
1fc61c844ec5 Allow selecting controller type when controllers have an SDL 2 mapping, but heuristics fail to idenify details
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
232 char *confpath = NULL;
1fc61c844ec5 Allow selecting controller type when controllers have an SDL 2 mapping, but heuristics fail to idenify details
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
233 tern_node *ret;
1fc61c844ec5 Allow selecting controller type when controllers have an SDL 2 mapping, but heuristics fail to idenify details
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
234 if (confdir) {
1fc61c844ec5 Allow selecting controller type when controllers have an SDL 2 mapping, but heuristics fail to idenify details
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
235 confpath = path_append(confdir, name);
1fc61c844ec5 Allow selecting controller type when controllers have an SDL 2 mapping, but heuristics fail to idenify details
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
236 ret = parse_config_file(confpath);
1852
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
237 }
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
238 free(confpath);
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
239 if (used_config_dir) {
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
240 *used_config_dir = ret != NULL;
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
241 }
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
242
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
243 if (!ret) {
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
244 ret = parse_bundled_config(name);
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
245 if (!ret) {
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
246 ret = parse_bundled_config(bundled_name);
1599
1fc61c844ec5 Allow selecting controller type when controllers have an SDL 2 mapping, but heuristics fail to idenify details
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
247 }
1fc61c844ec5 Allow selecting controller type when controllers have an SDL 2 mapping, but heuristics fail to idenify details
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
248 }
1fc61c844ec5 Allow selecting controller type when controllers have an SDL 2 mapping, but heuristics fail to idenify details
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
249
1852
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
250 return ret;
1599
1fc61c844ec5 Allow selecting controller type when controllers have an SDL 2 mapping, but heuristics fail to idenify details
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
251 }
1fc61c844ec5 Allow selecting controller type when controllers have an SDL 2 mapping, but heuristics fail to idenify details
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
252
1852
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
253 static uint8_t app_config_in_config_dir;
875
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
254 tern_node *load_config()
859
46bb673eed4e Load config file and rom.db from appropriate locations on Android
Michael Pavone <pavone@retrodev.com>
parents: 816
diff changeset
255 {
1852
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
256 tern_node *ret = load_overrideable_config("blastem.cfg", "default.cfg", &app_config_in_config_dir);
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
257
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
258 if (!ret) {
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
259 if (get_config_dir()) {
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
260 fatal_error("Failed to find a config file at %s or in the blastem executable directory\n", get_config_dir());
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
261 } else {
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
262 fatal_error("Failed to find a config file in the BlastEm executable directory and the config directory path could not be determined\n");
859
46bb673eed4e Load config file and rom.db from appropriate locations on Android
Michael Pavone <pavone@retrodev.com>
parents: 816
diff changeset
263 }
430
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
264 }
1852
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
265 return ret;
430
7f84090ab1cd Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
266 }
1485
369da70ee2c2 Filter file list in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1140
diff changeset
267
1852
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
268 void persist_config_at(tern_node *app_config, tern_node *to_save, char *fname)
1489
637fbc3b5063 Added code to persist config back to a file
Michael Pavone <pavone@retrodev.com>
parents: 1485
diff changeset
269 {
1852
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
270 char*use_exe_dir = tern_find_path_default(app_config, "ui\0config_in_exe_dir\0", (tern_val){.ptrval = "off"}, TVAL_PTR).ptrval;
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
271 char *confpath;
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
272 if (!strcmp(use_exe_dir, "on")) {
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
273 confpath = path_append(get_exe_dir(), fname);
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
274 if (app_config == to_save && app_config_in_config_dir) {
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
275 //user switched to "portable" configs this session and there is an
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
276 //existing config file in the user-specific config directory
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
277 //delete it so we don't end up loading it next time
a4cae960fd08 Allow config file to be saved with executable for "portable" setups
Michael Pavone <pavone@retrodev.com>
parents: 1783
diff changeset
278 char *oldpath = path_append(get_config_dir(), fname);
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279 delete_file(oldpath);
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280 free(oldpath);
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281 }
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282 } else {
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283 char const *confdir = get_config_dir();
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284 if (!confdir) {
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285 fatal_error("Failed to locate config file directory\n");
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286 }
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287 ensure_dir_exists(confdir);
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288 confpath = path_append(confdir, fname);
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289 }
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290 if (!serialize_config_file(to_save, confpath)) {
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291 fatal_error("Failed to write config to %s\n", confpath);
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292 }
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293 free(confpath);
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294 }
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295
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296 void persist_config(tern_node *config)
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297 {
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298 persist_config_at(config, config, "blastem.cfg");
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299 }
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300
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301 char **get_extension_list(tern_node *config, uint32_t *num_exts_out)
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302 {
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303 char *ext_filter = strdup(tern_find_path_default(config, "ui\0extensions\0", (tern_val){.ptrval = "bin gen md smd sms gg"}, TVAL_PTR).ptrval);
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304 uint32_t num_exts = 0, ext_storage = 5;
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305 char **ext_list = malloc(sizeof(char *) * ext_storage);
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306 char *cur_filter = ext_filter;
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307 while (*cur_filter)
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308 {
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309 if (num_exts == ext_storage) {
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310 ext_storage *= 2;
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311 ext_list = realloc(ext_list, sizeof(char *) * ext_storage);
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312 }
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313 ext_list[num_exts++] = cur_filter;
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314 cur_filter = split_keyval(cur_filter);
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315 }
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316 *num_exts_out = num_exts;
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317 return ext_list;
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318 }
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319
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320 #define DEFAULT_LOWPASS_CUTOFF 3390
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321 uint32_t get_lowpass_cutoff(tern_node *config)
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322 {
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323 char * lowpass_cutoff_str = tern_find_path(config, "audio\0lowpass_cutoff\0", TVAL_PTR).ptrval;
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324 return lowpass_cutoff_str ? atoi(lowpass_cutoff_str) : DEFAULT_LOWPASS_CUTOFF;
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325 }
1900
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326
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327 tern_node *get_systems_config(void)
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328 {
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329 static tern_node *systems;
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330 if (!systems) {
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331 systems = parse_bundled_config("systems.cfg");
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332 }
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333 return systems;
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334 }
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335
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336 tern_node *get_model(tern_node *config, system_type stype)
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337 {
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338 char *model = tern_find_path_default(config, "system\0model\0", (tern_val){.ptrval = "md1va3"}, TVAL_PTR).ptrval;
1900
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339 return tern_find_node(get_systems_config(), model);
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340 }