Mercurial > hg > th-libs
annotate th_util.c @ 471:02a2a46f5485
Allow TH_PROG_AUTHOR and TH_PROG_LICENSE to be defined to override
th_prog_author and th_prog_license variables if the provided values are NULL.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Mon, 04 Jun 2018 03:07:46 +0300 |
| parents | 167b66942c24 |
| children | 41c1d786ff08 |
| rev | line source |
|---|---|
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1 /* |
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2 * Generic utility-functions, macros and defaults |
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3 * Programmed and designed by Matti 'ccr' Hamalainen |
| 144 | 4 * (C) Copyright 2002-2015 Tecnic Software productions (TNSP) |
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5 * |
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6 * Please read file 'COPYING' for information on license and distribution. |
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7 */ |
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8 #include "th_util.h" |
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9 #include <stdio.h> |
| 96 | 10 #include <errno.h> |
| 11 | |
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12 |
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13 /* Default settings |
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14 */ |
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15 static BOOL th_initialized = FALSE; |
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16 int th_verbosity = 2; |
| 60 | 17 char *th_prog_name = NULL, |
| 18 *th_prog_desc = NULL, | |
| 19 *th_prog_version = NULL, | |
| 20 *th_prog_author = NULL, | |
| 21 *th_prog_license = NULL; | |
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22 |
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23 |
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24 /* Initialize th_util-library and global variables |
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25 */ |
| 60 | 26 void th_init(char *name, char *desc, char *version, |
| 27 char *author, char *license) | |
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28 { |
| 60 | 29 th_prog_name = name; |
| 30 th_prog_desc = desc; | |
| 31 th_prog_version = version; | |
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32 |
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33 #ifdef TH_PROG_AUTHOR |
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34 th_prog_author = author == NULL ? TH_PROG_AUTHOR : NULL; |
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35 #else |
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36 th_prog_author = author; |
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37 #endif |
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38 |
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39 #ifdef TH_PROG_LICENSE |
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40 th_prog_license = license == NULL ? TH_PROG_LICENSE : NULL; |
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41 #else |
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42 th_prog_license = license; |
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43 #endif |
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44 |
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45 th_initialized = TRUE; |
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46 } |
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47 |
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48 |
| 64 | 49 void th_print_banner(FILE *outFile, const char *name, const char *usage) |
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50 { |
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51 fprintf(outFile, "%s", th_prog_name); |
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52 if (th_prog_version != NULL) |
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53 fprintf(outFile, " v%s", th_prog_version); |
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54 if (th_prog_desc != NULL) |
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55 fprintf(outFile, " (%s)", th_prog_desc); |
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56 fprintf(outFile, "\n"); |
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57 |
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58 if (th_prog_author != NULL) |
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59 fprintf(outFile, "%s\n", th_prog_author); |
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60 |
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61 if (th_prog_license != NULL) |
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62 fprintf(outFile, "%s\n", th_prog_license); |
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63 |
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64 fprintf(outFile, "Usage: %s %s\n", name, usage); |
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65 } |
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66 |
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67 |
| 143 | 68 int th_term_width() |
| 69 { | |
| 70 char *var = getenv("COLUMNS"); | |
| 71 int res = (var != NULL) ? atoi(var) : 80; | |
| 72 if (res < 5) res = 80; | |
| 73 return res; | |
| 74 } | |
| 75 | |
| 76 | |
| 77 int th_term_height() | |
| 78 { | |
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79 char *var = getenv("LINES"); |
| 143 | 80 int res = (var != NULL) ? atoi(var) : 25; |
| 81 if (res < 1) res = 1; | |
| 82 return res; | |
| 83 } | |
| 84 | |
| 85 | |
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86 /* Print formatted error, warning and information messages |
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87 * TODO: Implement th_vfprintf() and friends? |
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88 */ |
| 11 | 89 void THERR_V(const char *fmt, va_list ap) |
| 90 { | |
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91 assert(th_initialized == TRUE); |
| 11 | 92 |
| 93 fprintf(stderr, "%s: ", th_prog_name); | |
| 94 vfprintf(stderr, fmt, ap); | |
| 95 } | |
| 96 | |
| 97 | |
| 98 void THMSG_V(int level, const char *fmt, va_list ap) | |
| 99 { | |
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100 assert(th_initialized == TRUE); |
| 11 | 101 |
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102 if (th_verbosity >= level) |
| 48 | 103 { |
| 11 | 104 fprintf(stderr, "%s: ", th_prog_name); |
| 105 vfprintf(stderr, fmt, ap); | |
| 106 } | |
| 107 } | |
| 108 | |
| 109 | |
| 110 void THPRINT_V(int level, const char *fmt, va_list ap) | |
| 111 { | |
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112 assert(th_initialized == TRUE); |
| 11 | 113 |
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114 if (th_verbosity >= level) |
| 48 | 115 { |
| 11 | 116 vfprintf(stderr, fmt, ap); |
| 117 } | |
| 118 } | |
| 119 | |
| 120 | |
| 121 void THERR(const char *fmt, ...) | |
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122 { |
| 10 | 123 va_list ap; |
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124 assert(th_initialized == TRUE); |
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125 |
| 11 | 126 va_start(ap, fmt); |
| 127 THERR_V(fmt, ap); | |
| 10 | 128 va_end(ap); |
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129 } |
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130 |
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131 |
| 11 | 132 void THMSG(int level, const char *fmt, ...) |
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133 { |
| 10 | 134 va_list ap; |
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135 assert(th_initialized == TRUE); |
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136 |
| 11 | 137 va_start(ap, fmt); |
| 138 THMSG_V(level, fmt, ap); | |
| 139 va_end(ap); | |
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140 } |
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141 |
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142 |
| 11 | 143 void THPRINT(int level, const char *fmt, ...) |
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144 { |
| 10 | 145 va_list ap; |
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146 assert(th_initialized == TRUE); |
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147 |
| 11 | 148 va_start(ap, fmt); |
| 149 THPRINT_V(level, fmt, ap); | |
| 150 va_end(ap); | |
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151 } |
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152 |
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153 |
| 96 | 154 /* Error handling |
| 155 */ | |
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156 int th_get_error() |
| 96 | 157 { |
| 158 return TH_SYSTEM_ERRORS + errno; | |
| 159 } | |
| 160 | |
| 161 | |
| 99 | 162 int th_errno_to_error(int error) |
| 163 { | |
| 164 return TH_SYSTEM_ERRORS + error; | |
| 165 } | |
| 166 | |
| 167 | |
| 96 | 168 const char *th_error_str(int error) |
| 169 { | |
| 170 if (error >= TH_SYSTEM_ERRORS) | |
| 171 return strerror(error - TH_SYSTEM_ERRORS); | |
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172 |
| 96 | 173 switch (error) |
| 174 { | |
| 175 case THERR_OK: return "No error"; | |
| 176 case THERR_FOPEN: return "File open error"; | |
| 177 case THERR_FREAD: return "Read error"; | |
| 178 case THERR_FWRITE: return "Write error"; | |
| 179 case THERR_FSEEK: return "Seek error"; | |
| 180 case THERR_NOT_FOUND: return "Resource not found"; | |
| 181 | |
| 182 case THERR_INVALID_DATA: return "Invalid data"; | |
| 183 case THERR_MALLOC: return "Memory allocation failure"; | |
| 184 case THERR_ALREADY_INIT: return "Already initialized"; | |
| 185 case THERR_INIT_FAIL: return "Initialization failed"; | |
| 186 case THERR_INVALID_ARGS: return "Invalid arguments"; | |
| 187 | |
| 188 case THERR_NULLPTR: return "NULL pointer"; | |
| 189 case THERR_NOT_SUPPORTED: return "Operation not supported"; | |
| 190 case THERR_OUT_OF_DATA: return "Out of data"; | |
| 191 case THERR_EXTRA_DATA: return "Extra data"; | |
| 192 case THERR_BOUNDS: return "Bounds check failed"; | |
| 193 | |
| 194 case THERR_TIMED_OUT: return "Operation timed out"; | |
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195 |
| 96 | 196 case THERR_AUTH_FAILED: return "Authentication failed"; |
| 197 | |
| 198 default: return "Unknown error"; | |
| 199 } | |
| 200 } | |
| 201 | |
| 202 | |
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203 /* Memory handling routines |
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204 */ |
| 462 | 205 void *th_malloc(size_t len) |
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206 { |
| 462 | 207 return malloc(len); |
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208 } |
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209 |
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210 |
| 462 | 211 void *th_malloc0(size_t len) |
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212 { |
| 462 | 213 return calloc(1, len); |
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214 } |
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215 |
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216 |
| 462 | 217 void *th_calloc(size_t n, size_t len) |
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218 { |
| 462 | 219 return calloc(n, len); |
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220 } |
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221 |
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222 |
| 462 | 223 void *th_realloc(void *ptr, size_t len) |
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224 { |
| 462 | 225 return realloc(ptr, len); |
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226 } |
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227 |
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228 |
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194
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229 void th_free(void *ptr) |
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230 { |
| 10 | 231 /* Check for NULL pointers for portability due to some libc |
| 232 * implementations not handling free(NULL) too well. | |
| 233 */ | |
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194
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234 if (ptr != NULL) free(ptr); |
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235 } |
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236 |
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237 |
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197
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Rename th_free_r() to th_free_r_real() and #define a macro wrapper for
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238 void th_free_r_real(void **ptr) |
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192
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239 { |
| 195 | 240 if (ptr != NULL) |
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192
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241 { |
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194
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242 th_free(*ptr); |
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243 *ptr = NULL; |
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192
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244 } |
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245 } |