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annotate util.c @ 813:c9ed929ee984 v0.3.1

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Final change to CHANGELOG for 0.3.1
author Michael Pavone <pavone@retrodev.com>
date Sun, 26 Jul 2015 21:19:59 -0700
parents 3eced113081c
children 69a6ec208111
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1 #include <string.h>
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2 #include <stdlib.h>
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3 #include <stdio.h>
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4 #include <ctype.h>
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5 #include <stdint.h>
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6 #include <stdarg.h>
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7
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8 #include <sys/types.h>
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9 #include <sys/stat.h>
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10 #include <unistd.h>
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11
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12 #include "blastem.h" //for headless global
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13 #include "render.h" //for render_errorbox
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14
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15 char * alloc_concat(char * first, char * second)
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16 {
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17 int flen = strlen(first);
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18 int slen = strlen(second);
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19 char * ret = malloc(flen + slen + 1);
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20 memcpy(ret, first, flen);
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21 memcpy(ret+flen, second, slen+1);
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22 return ret;
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23 }
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24
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25 char * alloc_concat_m(int num_parts, char ** parts)
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26 {
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27 int total = 0;
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28 for (int i = 0; i < num_parts; i++) {
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29 total += strlen(parts[i]);
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30 }
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31 char * ret = malloc(total + 1);
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32 *ret = 0;
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33 for (int i = 0; i < num_parts; i++) {
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34 strcat(ret, parts[i]);
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35 }
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36 return ret;
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37 }
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38
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39 long file_size(FILE * f)
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40 {
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41 fseek(f, 0, SEEK_END);
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42 long fsize = ftell(f);
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43 fseek(f, 0, SEEK_SET);
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44 return fsize;
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45 }
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46
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47 char * strip_ws(char * text)
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48 {
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49 while (*text && (!isprint(*text) || isblank(*text)))
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50 {
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51 text++;
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52 }
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53 char * ret = text;
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54 text = ret + strlen(ret) - 1;
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55 while (text > ret && (!isprint(*text) || isblank(*text)))
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56 {
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57 *text = 0;
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58 text--;
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59 }
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60 return ret;
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61 }
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62
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63 char * split_keyval(char * text)
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64 {
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65 while (*text && !isblank(*text))
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66 {
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67 text++;
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68 }
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69 if (!*text) {
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70 return text;
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71 }
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72 *text = 0;
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73 return text+1;
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74 }
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75
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76 uint32_t nearest_pow2(uint32_t val)
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77 {
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78 uint32_t ret = 1;
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79 while (ret < val)
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80 {
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81 ret = ret << 1;
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82 }
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83 return ret;
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84 }
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85
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86 static char * exe_str;
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87
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88 void set_exe_str(char * str)
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89 {
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90 exe_str = str;
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91 }
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92
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93 void fatal_error(char *format, ...)
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94 {
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95 va_list args;
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96 va_start(args, format);
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97 if (!headless) {
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98 //take a guess at the final size
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99 size_t size = strlen(format) * 2;
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100 char *buf = malloc(size);
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101 size_t actual = vsnprintf(buf, size, format, args);
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102 if (actual >= size) {
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103 actual++;
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104 free(buf);
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105 buf = malloc(actual);
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106 va_end(args);
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107 va_start(args, format);
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108 vsnprintf(buf, actual, format, args);
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109 }
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110 fputs(buf, stderr);
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111 render_errorbox("Fatal Error", buf);
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112 free(buf);
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113 } else {
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114 vfprintf(stderr, format, args);
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115 }
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116 va_end(args);
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diff changeset
117 exit(1);
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diff changeset
118 }
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diff changeset
119
794
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diff changeset
120 void warning(char *format, ...)
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diff changeset
121 {
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diff changeset
122 va_list args;
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diff changeset
123 va_start(args, format);
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diff changeset
124 #ifndef _WIN32
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diff changeset
125 if (headless || (isatty(STDERR_FILENO) && isatty(STDIN_FILENO))) {
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diff changeset
126 vfprintf(stderr, format, args);
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diff changeset
127 } else {
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diff changeset
128 #endif
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diff changeset
129 size_t size = strlen(format) * 2;
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diff changeset
130 char *buf = malloc(size);
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diff changeset
131 size_t actual = vsnprintf(buf, size, format, args);
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diff changeset
132 if (actual >= size) {
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diff changeset
133 actual++;
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diff changeset
134 free(buf);
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diff changeset
135 buf = malloc(actual);
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diff changeset
136 va_end(args);
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diff changeset
137 va_start(args, format);
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diff changeset
138 vsnprintf(buf, actual, format, args);
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diff changeset
139 }
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diff changeset
140 fputs(buf, stderr);
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diff changeset
141 render_infobox("BlastEm Info", buf);
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diff changeset
142 free(buf);
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diff changeset
143 #ifndef _WIN32
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144 }
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diff changeset
145 #endif
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diff changeset
146 va_end(args);
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diff changeset
147 }
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148
792
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Michael Pavone <pavone@retrodev.com>
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149 void info_message(char *format, ...)
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150 {
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Michael Pavone <pavone@retrodev.com>
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151 va_list args;
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152 va_start(args, format);
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153 #ifndef _WIN32
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diff changeset
154 if (headless || (isatty(STDOUT_FILENO) && isatty(STDIN_FILENO))) {
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).
Michael Pavone <pavone@retrodev.com>
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155 vprintf(format, args);
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diff changeset
156 } else {
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).
Michael Pavone <pavone@retrodev.com>
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diff changeset
157 #endif
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diff changeset
158 size_t size = strlen(format) * 2;
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Michael Pavone <pavone@retrodev.com>
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diff changeset
159 char *buf = malloc(size);
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Michael Pavone <pavone@retrodev.com>
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diff changeset
160 size_t actual = vsnprintf(buf, size, format, args);
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diff changeset
161 if (actual >= size) {
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diff changeset
162 actual++;
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diff changeset
163 free(buf);
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diff changeset
164 buf = malloc(actual);
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diff changeset
165 va_end(args);
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diff changeset
166 va_start(args, format);
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diff changeset
167 vsnprintf(buf, actual, format, args);
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diff changeset
168 }
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Michael Pavone <pavone@retrodev.com>
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diff changeset
169 fputs(buf, stdout);
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Michael Pavone <pavone@retrodev.com>
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diff changeset
170 render_infobox("BlastEm Info", buf);
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Michael Pavone <pavone@retrodev.com>
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diff changeset
171 free(buf);
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diff changeset
172 #ifndef _WIN32
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173 }
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Michael Pavone <pavone@retrodev.com>
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diff changeset
174 #endif
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diff changeset
175 va_end(args);
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diff changeset
176 }
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diff changeset
177
742
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diff changeset
178 #ifdef _WIN32
795
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=?UTF-8?q?Higor=20Eur=C3=ADpedes?= <heuripedes@gmail.com>
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diff changeset
179 #include <windows.h>
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=?UTF-8?q?Higor=20Eur=C3=ADpedes?= <heuripedes@gmail.com>
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diff changeset
180 #include <shlobj.h>
742
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diff changeset
181
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diff changeset
182 char * get_home_dir()
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diff changeset
183 {
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diff changeset
184 static char path[MAX_PATH];
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diff changeset
185 SHGetFolderPathA(NULL, CSIDL_PROFILE, NULL, 0, path);
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diff changeset
186 return path;
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diff changeset
187 }
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diff changeset
188
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diff changeset
189 char * get_exe_dir()
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diff changeset
190 {
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diff changeset
191 static char path[MAX_PATH];
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diff changeset
192 HMODULE module = GetModuleHandleA(NULL);
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diff changeset
193 GetModuleFileNameA(module, path, MAX_PATH);
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diff changeset
194
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diff changeset
195 int pathsize = strlen(path);
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diff changeset
196 for(char * cur = path + pathsize - 1; cur != path; cur--)
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diff changeset
197 {
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parents: 741
diff changeset
198 if (*cur == '\\') {
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diff changeset
199 *cur = 0;
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diff changeset
200 break;
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diff changeset
201 }
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diff changeset
202 }
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Michael Pavone <pavone@retrodev.com>
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diff changeset
203 return path;
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diff changeset
204 }
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diff changeset
205
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diff changeset
206 #else
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diff changeset
207
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diff changeset
208 char * get_home_dir()
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parents: 741
diff changeset
209 {
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diff changeset
210 return getenv("HOME");
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diff changeset
211 }
2e1b3b258523 Make Windows port a little less half-assed
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diff changeset
212
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
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diff changeset
213 char * readlink_alloc(char * path)
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parents: 495
diff changeset
214 {
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parents: 495
diff changeset
215 char * linktext = NULL;
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parents: 495
diff changeset
216 ssize_t linksize = 512;
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parents: 495
diff changeset
217 ssize_t cursize = 0;
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diff changeset
218 do {
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parents: 495
diff changeset
219 if (linksize > cursize) {
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Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
220 cursize = linksize;
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diff changeset
221 if (linktext) {
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diff changeset
222 free(linktext);
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diff changeset
223 }
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diff changeset
224 }
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diff changeset
225 linktext = malloc(cursize);
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diff changeset
226 linksize = readlink(path, linktext, cursize-1);
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parents: 495
diff changeset
227 if (linksize == -1) {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
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diff changeset
228 perror("readlink");
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diff changeset
229 free(linktext);
559
6b248602ab84 blastem builds and almost works on OS X now
Mike Pavone <pavone@retrodev.com>
parents: 549
diff changeset
230 return NULL;
496
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diff changeset
231 }
549
32da1e0d5e55 Properly null terminate string returned by readlink in util.c
Michael Pavone <pavone@retrodev.com>
parents: 496
diff changeset
232 } while ((linksize+1) > cursize);
32da1e0d5e55 Properly null terminate string returned by readlink in util.c
Michael Pavone <pavone@retrodev.com>
parents: 496
diff changeset
233 linktext[linksize] = 0;
496
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diff changeset
234 return linktext;
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diff changeset
235 }
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Mike Pavone <pavone@retrodev.com>
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diff changeset
236
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237 char * get_exe_dir()
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238 {
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239 static char * exe_dir;
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240 if (!exe_dir) {
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241 char * cur;
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242 #ifdef HAS_PROC
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243 char * linktext = readlink_alloc("/proc/self/exe");
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244 if (!linktext) {
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245 goto fallback;
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246 }
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247 int linksize = strlen(linktext);
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248 for(cur = linktext + linksize - 1; cur != linktext; cur--)
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249 {
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250 if (*cur == '/') {
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251 *cur = 0;
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252 break;
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253 }
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254 }
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255 if (cur == linktext) {
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256 free(linktext);
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257 fallback:
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258 #endif
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259 if (!exe_str) {
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260 fputs("/proc/self/exe is not available and set_exe_str was not called!", stderr);
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261 }
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262 int pathsize = strlen(exe_str);
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263 for(cur = exe_str + pathsize - 1; cur != exe_str; cur--)
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264 {
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265 if (*cur == '/') {
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266 exe_dir = malloc(cur-exe_str+1);
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267 memcpy(exe_dir, exe_str, cur-exe_str);
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268 exe_dir[cur-exe_str] = 0;
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269 break;
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270 }
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271 }
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272 #ifdef HAS_PROC
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273 } else {
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274 exe_dir = linktext;
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275 }
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276 #endif
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277 }
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278 return exe_dir;
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279 }
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280
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281 #endif