| 275 | } |
| 276 | |
| 277 | int solve_module_dependencies(struct sr_module *modules) |
| 278 | { |
| 279 | struct sr_module_dep *md, *it; |
| 280 | struct sr_module *this, *mod; |
| 281 | enum module_type mod_type; |
| 282 | unsigned int dep_type; |
| 283 | int dep_solved; |
| 284 | |
| 285 | /* |
| 286 | * now that we've loaded all shared libraries, |
| 287 | * we can attempt to solve each dependency |
| 288 | */ |
| 289 | for (it = unsolved_deps.next; it; ) { |
| 290 | md = it; |
| 291 | it = it->next; |
| 292 | |
| 293 | LM_DBG("solving dependency %s -> %s %.*s\n", md->mod->exports->name, |
| 294 | mod_type_to_string(md->mod_type), md->dep.len, md->dep.s); |
| 295 | |
| 296 | this = md->mod; |
| 297 | dep_type = md->type; |
| 298 | int byname = !!md->dep.s; |
| 299 | mod_type = md->mod_type; |
| 300 | |
| 301 | /* |
| 302 | * for generic dependencies (e.g. dialog depends on MOD_TYPE_SQLDB), |
| 303 | * first load all modules of given type |
| 304 | * |
| 305 | * re-purpose this @md structure by linking it into a module's |
| 306 | * list of dependencies (will be used at init time) |
| 307 | * |
| 308 | * md->mod used to point to (highlighted with []): |
| 309 | * [sr_module A] ---> "mod_name" |
| 310 | * |
| 311 | * now, the dependency is solved. md->mod will point to: |
| 312 | * sr_module A ---> [sr_module B] |
| 313 | */ |
| 314 | |
| 315 | for (dep_solved = 0, mod = modules; mod; mod = mod->next) { |
| 316 | if (!byname) { |
| 317 | if (mod == this || mod->exports->type != mod_type) |
| 318 | continue; |
| 319 | } else { |
| 320 | if (strcmp(mod->exports->name, md->dep.s) != 0) |
| 321 | continue; |
| 322 | if (mod->exports->type != mod_type) |
| 323 | LM_BUG("[%.*s %d] -> [%s %d]\n", md->dep.len, md->dep.s, |
| 324 | mod_type, mod->exports->name, |
| 325 | mod->exports->type); |
| 326 | } |
| 327 | |
| 328 | if (!make_dep(md, dep_type, DEP_REVERSE_MINIT, this, mod)) |
| 329 | return -1; |
| 330 | md = NULL; |
| 331 | |
| 332 | if (!make_dep(NULL, dep_type, DEP_REVERSE_DESTROY, mod, this)) |
| 333 | return -1; |
| 334 | |