Mercurial > libpst
annotate src/debug.c @ 180:265c7a65b75b
switch back to fully versioned subpackage dependencies
add doxygen devel-doc documentation for the shared library
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Fri, 10 Apr 2009 12:00:46 -0700 |
| parents | ac6e22c8a9cf |
| children | 2f38c4ce606f |
| rev | line source |
|---|---|
| 48 | 1 #include "define.h" |
| 16 | 2 |
| 46 | 3 struct pst_debug_item { |
| 4 int type; | |
| 5 char * function; | |
| 6 unsigned int line; | |
| 7 char * file; | |
| 8 char * text; | |
| 9 struct pst_debug_item *next; | |
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10 }; |
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11 |
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12 static struct pst_debug_item *item_head=NULL, *item_tail=NULL, *item_ptr=NULL, *info_ptr=NULL, *temp_list=NULL; |
| 16 | 13 |
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14 |
| 46 | 15 struct pst_debug_func { |
| 16 char * name; | |
| 17 struct pst_debug_func *next; | |
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18 }; |
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19 |
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20 static struct pst_debug_func *func_head=NULL, *func_ptr=NULL; |
| 16 | 21 |
| 22 | |
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23 static void pst_debug_write_msg(struct pst_debug_item *item, const char *fmt, va_list *ap, int size); |
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24 static void pst_debug_write_hex(struct pst_debug_item *item, char *buf, size_t size, int col); |
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25 static void pst_debug_write(); |
| 16 | 26 |
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27 |
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28 static size_t pst_debug_fwrite(const void *ptr, size_t size, size_t nitems, FILE *stream); |
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29 static size_t pst_debug_fwrite(const void *ptr, size_t size, size_t nitems, FILE *stream) { |
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30 return fwrite(ptr, size, nitems, stream); |
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31 } |
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32 |
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33 |
| 16 | 34 // the largest text size we will store in memory. Otherwise we |
| 35 // will do a debug_write, then create a new record, and write the | |
| 36 // text body directly to the file | |
| 37 #define MAX_MESSAGE_SIZE 4096 | |
| 38 | |
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39 void pst_debug(const char *fmt, ...) { |
| 46 | 40 va_list ap; |
| 41 va_start(ap,fmt); | |
| 42 vfprintf(stderr, fmt, ap); | |
| 43 va_end(ap); | |
| 16 | 44 } |
| 45 | |
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46 |
| 16 | 47 #define NUM_COL 30 |
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48 void pst_debug_hexdumper(FILE *out, char *buf, size_t size, int col, int delta) { |
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49 size_t off = 0, toff; |
| 46 | 50 int count = 0; |
| 16 | 51 |
| 46 | 52 if (!out) return; // no file |
| 53 if (col == -1) col = NUM_COL; | |
| 54 fprintf(out, "\n"); | |
| 55 while (off < size) { | |
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56 fprintf(out, "%06"PRIx64"\t:", (int64_t)(off+delta)); |
| 46 | 57 toff = off; |
| 58 while (count < col && off < size) { | |
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59 fprintf(out, "%02hhx ", (unsigned char)buf[off]); |
| 46 | 60 off++; count++; |
| 61 } | |
| 62 off = toff; | |
| 63 while (count < col) { | |
| 64 // only happens at end of block to pad the text over to the text column | |
| 65 fprintf(out, " "); | |
| 66 count++; | |
| 67 } | |
| 68 count = 0; | |
| 69 fprintf(out, ":"); | |
| 70 while (count < col && off < size) { | |
| 71 fprintf(out, "%c", isgraph(buf[off])?buf[off]:'.'); | |
| 72 off++; count ++; | |
| 73 } | |
| 16 | 74 |
| 46 | 75 fprintf(out, "\n"); |
| 76 count=0; | |
| 77 } | |
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78 |
| 46 | 79 fprintf(out, "\n"); |
| 16 | 80 } |
| 81 | |
| 82 | |
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83 static FILE *debug_fp = NULL; |
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84 static unsigned int max_items=DEBUG_MAX_ITEMS, curr_items=0; |
| 16 | 85 |
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86 |
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87 void pst_debug_init(const char* fname) { |
| 46 | 88 unsigned char version = DEBUG_VERSION; |
| 89 item_head = item_tail = NULL; | |
| 90 curr_items = 0; | |
| 91 if (debug_fp) pst_debug_close(); | |
| 92 if (!fname) return; | |
| 93 if ((debug_fp = fopen(fname, "wb")) == NULL) { | |
| 94 fprintf(stderr, "Opening of file %s failed\n", fname); | |
| 95 exit(1); | |
| 96 } | |
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97 pst_debug_fwrite(&version, sizeof(char), 1, debug_fp); |
| 16 | 98 } |
| 99 | |
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100 |
| 46 | 101 // function must be called before pst_debug_msg. It sets up the |
| 16 | 102 // structure for the function that follows |
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103 void pst_debug_msg_info(int line, const char* file, int type) { |
| 46 | 104 char *x; |
| 105 if (!debug_fp) return; // no file | |
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106 info_ptr = (struct pst_debug_item*) pst_malloc(sizeof(struct pst_debug_item)); |
| 46 | 107 info_ptr->type = type; |
| 108 info_ptr->line = line; | |
| 109 x = (func_head==NULL?"No Function":func_head->name); | |
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110 info_ptr->function = (char*) pst_malloc(strlen(x)+1); |
| 46 | 111 strcpy(info_ptr->function, x); |
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112 |
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113 info_ptr->file = (char*) pst_malloc(strlen(file)+1); |
| 46 | 114 strcpy(info_ptr->file, file); |
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115 |
| 46 | 116 //put the current record on a temp linked list |
| 117 info_ptr->next = temp_list; | |
| 118 temp_list = info_ptr; | |
| 16 | 119 } |
| 120 | |
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121 |
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122 void pst_debug_msg_text(const char* fmt, ...) { |
| 46 | 123 va_list ap; |
| 124 int f, g; | |
| 125 char x[2]; | |
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126 #ifdef _WIN32 |
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127 char *buf = NULL; |
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128 #endif |
| 46 | 129 struct pst_debug_item *temp; |
| 130 if (!debug_fp) return; // no file | |
| 131 // get the record off of the temp_list | |
| 132 info_ptr = temp_list; | |
| 133 if (info_ptr) | |
| 134 temp_list = info_ptr->next; | |
| 135 else { | |
| 136 fprintf(stderr, "NULL info_ptr. ERROR!!\n"); | |
| 137 exit(-2); | |
| 138 } | |
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139 |
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140 #ifdef _WIN32 |
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141 // vsnprintf trick doesn't work on msvc. |
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142 g = 2000; |
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143 f = -1; |
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144 while (f < 0) { |
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145 buf = realloc(buf, g+1); |
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146 va_start(ap, fmt); |
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147 f = vsnprintf(buf, g, fmt, ap); |
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148 va_end(ap); |
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149 g += g/2; |
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150 } |
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151 free(buf); |
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152 #else |
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153 // according to glibc 2.1, this should return the req. number of bytes for |
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154 // the string |
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155 va_start(ap, fmt); |
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156 f = vsnprintf(x, 1, fmt, ap); |
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157 va_end(ap); |
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158 #endif |
| 16 | 159 |
| 46 | 160 if (f > 0 && f < MAX_MESSAGE_SIZE) { |
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161 info_ptr->text = (char*) pst_malloc(f+1); |
| 46 | 162 va_start(ap, fmt); |
| 163 if ((g = vsnprintf(info_ptr->text, f, fmt, ap)) == -1) { | |
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164 fprintf(stderr, "_debug_msg: Dying! vsnprintf returned -1 for format \"%s\"\n", fmt); |
| 46 | 165 exit(-2); |
| 166 } | |
| 167 va_end(ap); | |
| 168 info_ptr->text[g] = '\0'; | |
| 169 if (f != g) { | |
| 170 fprintf(stderr, "_debug_msg: f != g\n"); | |
| 171 } | |
| 172 } else if (f > 0) { // it is over the max_message_size then | |
| 173 f += strlen(info_ptr->file)+strlen(info_ptr->function); | |
| 174 temp = info_ptr; | |
| 175 pst_debug_write(); // dump the current messages | |
| 176 info_ptr = temp; | |
| 177 va_start(ap, fmt); | |
| 178 pst_debug_write_msg(info_ptr, fmt, &ap, f); | |
| 179 va_end(ap); | |
| 180 free(info_ptr->function); | |
| 181 free(info_ptr->file); | |
| 182 free(info_ptr); | |
| 183 info_ptr = NULL; | |
| 184 return; | |
| 185 } else { | |
| 186 fprintf(stderr, "_debug_msg: error getting requested size of debug message\n"); | |
| 187 info_ptr->text = "ERROR Saving\n"; | |
| 188 } | |
| 16 | 189 |
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190 // add to the linked list of pending items |
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191 if (!item_head) item_head = info_ptr; |
| 46 | 192 info_ptr->next = NULL; |
| 193 if (item_tail) item_tail->next = info_ptr; | |
| 194 item_tail = info_ptr; | |
| 16 | 195 |
| 46 | 196 if (++curr_items == max_items) { |
| 197 // here we will jump off and save the contents | |
| 198 pst_debug_write(); | |
| 199 info_ptr = NULL; | |
| 200 } | |
| 16 | 201 } |
| 202 | |
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203 |
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204 void pst_debug_hexdump(char *x, size_t y, int cols, int delta) { |
| 46 | 205 struct pst_debug_item *temp; |
| 206 if (!debug_fp) return; // no file | |
| 207 info_ptr = temp_list; | |
| 208 if (info_ptr) temp_list = info_ptr->next; | |
| 209 temp = info_ptr; | |
| 210 pst_debug_write(); | |
| 211 info_ptr = temp; | |
| 212 pst_debug_write_hex(info_ptr, x, y, cols); | |
| 213 free(info_ptr->function); | |
| 214 free(info_ptr->file); | |
| 215 free(info_ptr); | |
| 216 info_ptr = NULL; | |
| 16 | 217 } |
| 218 | |
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219 |
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220 void pst_debug_func(const char *function) { |
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221 func_ptr = pst_malloc (sizeof(struct pst_debug_func)); |
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222 func_ptr->name = pst_malloc(strlen(function)+1); |
| 46 | 223 strcpy(func_ptr->name, function); |
| 224 func_ptr->next = func_head; | |
| 225 func_head = func_ptr; | |
| 16 | 226 } |
| 227 | |
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228 |
| 46 | 229 void pst_debug_func_ret() { |
| 230 //remove the head item | |
| 231 func_ptr = func_head; | |
| 232 if (func_head) { | |
| 233 func_head = func_head->next; | |
| 234 free(func_ptr->name); | |
| 235 free(func_ptr); | |
| 236 } else { | |
| 237 DIE(("function list is empty!\n")); | |
| 238 } | |
| 16 | 239 } |
| 240 | |
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241 |
| 46 | 242 void pst_debug_close(void) { |
| 243 pst_debug_write(); | |
| 244 while (func_head) { | |
| 245 func_ptr = func_head; | |
| 246 func_head = func_head->next; | |
| 247 free(func_ptr->name); | |
| 248 free(func_ptr); | |
| 249 } | |
| 250 if (debug_fp) fclose(debug_fp); | |
| 251 debug_fp = NULL; | |
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252 } |
| 16 | 253 |
| 254 | |
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255 static void pst_debug_write() { |
| 46 | 256 size_t size, ptr, funcname, filename, text, end; |
| 257 char *buf = NULL, rec_type; | |
| 258 if (!debug_fp) return; // no file | |
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259 int64_t index_pos = ftello(debug_fp); |
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260 int64_t file_pos = index_pos; |
| 46 | 261 // add 2. One for the pointer to the next index, |
| 262 // one for the count of this index | |
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263 int index_size = ((curr_items+2) * sizeof(int64_t)); |
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264 int64_t *index; |
| 46 | 265 int index_ptr = 0; |
| 266 struct pst_debug_file_rec_m mfile_rec; | |
| 267 struct pst_debug_file_rec_l lfile_rec; | |
| 16 | 268 |
| 46 | 269 if (curr_items == 0) return; // no items to write. |
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270 |
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271 index = (int64_t*)pst_malloc(index_size); |
| 46 | 272 memset(index, 0, index_size); // valgrind, avoid writing uninitialized data |
| 273 file_pos += index_size; | |
| 274 // write the index first, we will re-write it later, but | |
| 275 // we want to allocate the space | |
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276 pst_debug_fwrite(index, index_size, 1, debug_fp); |
| 46 | 277 index[index_ptr++] = curr_items; |
| 16 | 278 |
| 46 | 279 item_ptr = item_head; |
| 280 while (item_ptr) { | |
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281 file_pos = ftello(debug_fp); |
| 46 | 282 index[index_ptr++] = file_pos; |
| 283 size = strlen(item_ptr->function) + | |
| 284 strlen(item_ptr->file) + | |
| 285 strlen(item_ptr->text) + 3; //for the three \0s | |
| 286 if (buf) free(buf); | |
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287 buf = pst_malloc(size+1); |
| 46 | 288 ptr = 0; |
| 289 funcname=ptr; | |
| 290 ptr += sprintf(&(buf[ptr]), "%s", item_ptr->function)+1; | |
| 291 filename=ptr; | |
| 292 ptr += sprintf(&(buf[ptr]), "%s", item_ptr->file)+1; | |
| 293 text=ptr; | |
| 294 ptr += sprintf(&(buf[ptr]), "%s", item_ptr->text)+1; | |
| 295 end=ptr; | |
| 296 if (end > USHRT_MAX) { // bigger than can be stored in a short | |
| 297 rec_type = 'L'; | |
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298 pst_debug_fwrite(&rec_type, sizeof(char), 1, debug_fp); |
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299 lfile_rec.type = item_ptr->type; |
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300 lfile_rec.line = item_ptr->line; |
| 46 | 301 lfile_rec.funcname = funcname; |
| 302 lfile_rec.filename = filename; | |
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303 lfile_rec.text = text; |
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304 lfile_rec.end = end; |
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305 pst_debug_fwrite(&lfile_rec, sizeof(lfile_rec), 1, debug_fp); |
| 46 | 306 } else { |
| 307 rec_type = 'M'; | |
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308 pst_debug_fwrite(&rec_type, sizeof(char), 1, debug_fp); |
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309 mfile_rec.type = item_ptr->type; |
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310 mfile_rec.line = item_ptr->line; |
| 46 | 311 mfile_rec.funcname = funcname; |
| 312 mfile_rec.filename = filename; | |
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313 mfile_rec.text = text; |
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314 mfile_rec.end = end; |
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315 pst_debug_fwrite(&mfile_rec, sizeof(mfile_rec), 1, debug_fp); |
| 46 | 316 } |
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317 pst_debug_fwrite(buf, ptr, 1, debug_fp); |
| 46 | 318 if (buf) free(buf); buf = NULL; |
| 319 item_head = item_ptr->next; | |
| 320 free(item_ptr->function); | |
| 321 free(item_ptr->file); | |
| 322 free(item_ptr->text); | |
| 323 free(item_ptr); | |
| 324 item_ptr = item_head; | |
| 325 } | |
| 326 curr_items = 0; | |
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327 index[index_ptr] = ftello(debug_fp); |
| 16 | 328 |
| 46 | 329 // we should now have a complete index |
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330 fseeko(debug_fp, index_pos, SEEK_SET); |
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331 pst_debug_fwrite(index, index_size, 1, debug_fp); |
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332 fseeko(debug_fp, 0, SEEK_END); |
| 46 | 333 item_ptr = item_head = item_tail = NULL; |
| 334 free(index); | |
| 335 if (buf) free(buf); | |
| 16 | 336 } |
| 337 | |
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338 |
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339 static void pst_debug_write_msg(struct pst_debug_item *item, const char *fmt, va_list *ap, int size) { |
| 46 | 340 struct pst_debug_file_rec_l lfile_rec; |
| 341 struct pst_debug_file_rec_m mfile_rec; | |
| 342 unsigned char rec_type; | |
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343 int index_size = 3 * sizeof(int64_t); |
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344 int64_t index[3]; |
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345 int64_t index_pos, file_pos; |
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346 char zero = '\0'; |
| 46 | 347 unsigned int end; |
| 348 if (!debug_fp) return; // no file | |
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349 index[0] = 1; // only one item in this index |
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350 index[1] = 0; // valgrind, avoid writing uninitialized data |
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351 index[2] = 0; // "" |
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352 index_pos = ftello(debug_fp); |
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353 pst_debug_fwrite(index, index_size, 1, debug_fp); |
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354 |
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355 index[1] = ftello(debug_fp); |
| 16 | 356 |
| 46 | 357 if (size > USHRT_MAX) { // bigger than can be stored in a short |
| 358 rec_type = 'L'; | |
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359 pst_debug_fwrite(&rec_type, sizeof(char), 1, debug_fp); |
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360 lfile_rec.type = item->type; |
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361 lfile_rec.line = item->line; |
| 46 | 362 lfile_rec.funcname = 0; |
| 363 lfile_rec.filename = strlen(item->function)+1; | |
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364 lfile_rec.text = lfile_rec.filename+strlen(item->file)+1; |
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365 lfile_rec.end = 0; // valgrind, avoid writing uninitialized data |
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366 pst_debug_fwrite(&lfile_rec, sizeof(lfile_rec), 1, debug_fp); |
| 46 | 367 } else { |
| 368 rec_type = 'M'; | |
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369 pst_debug_fwrite(&rec_type, sizeof(char), 1, debug_fp); |
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370 mfile_rec.type = item->type; |
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371 mfile_rec.line = item->line; |
| 46 | 372 mfile_rec.funcname = 0; |
| 373 mfile_rec.filename = strlen(item->function)+1; | |
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374 mfile_rec.text = mfile_rec.filename+strlen(item->file)+1; |
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375 mfile_rec.end = 0; // valgrind, avoid writing uninitialized data |
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376 pst_debug_fwrite(&mfile_rec, sizeof(mfile_rec), 1, debug_fp); |
| 46 | 377 } |
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378 file_pos = ftello(debug_fp); |
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379 pst_debug_fwrite(item->function, strlen(item->function)+1, 1, debug_fp); |
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380 pst_debug_fwrite(item->file, strlen(item->file)+1, 1, debug_fp); |
| 46 | 381 vfprintf(debug_fp, fmt, *ap); |
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382 pst_debug_fwrite(&zero, 1, 1, debug_fp); |
| 16 | 383 |
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384 end = (unsigned int) (ftello(debug_fp) - file_pos); |
| 16 | 385 |
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386 index[2] = ftello(debug_fp); |
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387 fseeko(debug_fp, index_pos, SEEK_SET); |
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388 pst_debug_fwrite(index, index_size, 1, debug_fp); |
| 46 | 389 if (size > USHRT_MAX) { |
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390 pst_debug_fwrite(&rec_type, sizeof(char), 1, debug_fp); |
| 46 | 391 lfile_rec.end = end; |
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392 pst_debug_fwrite(&lfile_rec, sizeof(lfile_rec), 1, debug_fp); |
| 46 | 393 } else { |
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394 pst_debug_fwrite(&rec_type, sizeof(char), 1, debug_fp); |
| 46 | 395 mfile_rec.end = end; |
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396 pst_debug_fwrite(&mfile_rec, sizeof(mfile_rec), 1, debug_fp); |
| 46 | 397 } |
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398 fseeko(debug_fp, 0, SEEK_END); |
| 16 | 399 } |
| 400 | |
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401 |
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402 void pst_debug_write_hex(struct pst_debug_item *item, char *buf, size_t size, int col) { |
| 46 | 403 struct pst_debug_file_rec_l lfile_rec; |
| 404 unsigned char rec_type; | |
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405 int index_size = 3 * sizeof(int64_t); |
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406 int64_t index_pos, file_pos, index[3]; |
| 46 | 407 char zero='\0'; |
| 408 if (!debug_fp) return; // no file | |
| 409 index[0] = 1; // only one item in this index run | |
| 410 index[1] = 0; // valgrind, avoid writing uninitialized data | |
| 411 index[2] = 0; // "" | |
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412 index_pos = ftello(debug_fp); |
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413 pst_debug_fwrite(index, index_size, 1, debug_fp); |
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414 index[1] = ftello(debug_fp); |
| 16 | 415 |
| 46 | 416 // always use the long |
| 417 rec_type = 'L'; | |
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418 pst_debug_fwrite(&rec_type, sizeof(char), 1, debug_fp); |
| 46 | 419 lfile_rec.funcname = 0; |
| 420 lfile_rec.filename = strlen(item->function)+1; | |
| 421 lfile_rec.text = lfile_rec.filename+strlen(item->file)+1; | |
| 422 lfile_rec.end = 0; // valgrind, avoid writing uninitialized data | |
| 423 lfile_rec.line = item->line; | |
| 424 lfile_rec.type = item->type; | |
|
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425 pst_debug_fwrite(&lfile_rec, sizeof(lfile_rec), 1, debug_fp); |
| 16 | 426 |
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427 file_pos = ftello(debug_fp); |
|
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428 pst_debug_fwrite(item->function, strlen(item->function)+1, 1, debug_fp); |
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parents:
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429 pst_debug_fwrite(item->file, strlen(item->file)+1, 1, debug_fp); |
|
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430 |
| 46 | 431 pst_debug_hexdumper(debug_fp, buf, size, col, 0); |
|
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parents:
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432 pst_debug_fwrite(&zero, 1, 1, debug_fp); |
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433 lfile_rec.end = ftello(debug_fp) - file_pos; |
|
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434 |
|
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435 index[2] = ftello(debug_fp); |
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436 fseeko(debug_fp, index_pos, SEEK_SET); |
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Patch from Robert Simpson to fix doubly-linked list in the cache_ptr code, and allow arrays of unicode strings (without converting them).
Carl Byington <carl@five-ten-sg.com>
parents:
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437 pst_debug_fwrite(index, index_size, 1, debug_fp); |
|
101
1fc33da23175
fix for orphan children when building descriptor tree, avoid writing uninitialized data to debug log file
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438 pst_debug_fwrite(&rec_type, sizeof(char), 1, debug_fp); |
|
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Patch from Robert Simpson to fix doubly-linked list in the cache_ptr code, and allow arrays of unicode strings (without converting them).
Carl Byington <carl@five-ten-sg.com>
parents:
70
diff
changeset
|
439 pst_debug_fwrite(&lfile_rec, sizeof(lfile_rec), 1, debug_fp); |
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440 fseeko(debug_fp, 0, SEEK_END); |
| 16 | 441 } |
| 442 | |
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443 |
|
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move version-info into main configure.in, and set it properly.
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444 void *pst_malloc(size_t size) { |
| 46 | 445 void *mem = malloc(size); |
| 446 if (!mem) { | |
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447 fprintf(stderr, "pst_malloc: Out Of memory [req: %ld]\n", (long)size); |
| 46 | 448 exit(1); |
| 449 } | |
| 450 return mem; | |
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451 } |
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452 |