git.m6w6.name Git - m6w6/ext-psi/blob - src/context.c

   1 #ifdef HAVE_CONFIG_H
   2 # include "config.h"
   3 #endif
   4
   5 #include "php.h"
   6
   7 #ifdef HAVE_DIRENT_H
   8 # include <dirent.h>
   9 # define NAMLEN(dirent) strlen ((dirent)->d_name)
  10 #else
  11 # define dirent direct
  12 # define NAMLEN(dirent) ((dirent)->d_namlen)
  13 # ifdef HAVE_SYS_NDIR_H
  14 #  include <sys/ndir.h>
  15 # endif
  16 # ifdef HAVE_SYS_DIR_H
  17 #  include <sys/dir.h>
  18 # endif
  19 # ifdef HAVE_NDIR_H
  20 #  include <ndir.h>
  21 # endif
  22 #endif
  23
  24 #include <fnmatch.h>
  25
  26 #include "php.h"
  27 #include "php_scandir.h"
  28 #include "php_psi.h"
  29 #include "calc.h"
  30 #include "libjit.h"
  31 #include "libffi.h"
  32
  33 #include "php_psi_types.h"
  34 #include "php_psi_consts.h"
  35 #include "php_psi_decls.h"
  36 #include "php_psi_va_decls.h"
  37 #include "php_psi_structs.h"
  38
  39
  40 PSI_Context *PSI_ContextInit(PSI_Context *C, PSI_ContextOps *ops, PSI_ContextErrorFunc error, unsigned flags)
  41 {
  42         PSI_Data T;
  43         struct psi_predef_type *predef_type;
  44         struct psi_predef_const *predef_const;
  45         struct psi_predef_struct *predef_struct;
  46         struct psi_predef_decl *predef_decl;
  47
  48         if (!C) {
  49                 C = malloc(sizeof(*C));
  50         }
  51         memset(C, 0, sizeof(*C));
  52
  53         C->error = error;
  54         C->flags = flags;
  55         C->ops = ops;
  56
  57         if (ops->init) {
  58                 ops->init(C);
  59         }
  60
  61         ZEND_ASSERT(ops->call != NULL);
  62         ZEND_ASSERT(ops->compile != NULL);
  63
  64         /* build up predefs in a temporary PSI_Data for validation */
  65         memset(&T, 0, sizeof(T));
  66         T.error = error;
  67
  68         for (predef_type = &psi_predef_types[0]; predef_type->type_tag; ++predef_type) {
  69                 decl_type *type = init_decl_type(predef_type->type_tag, predef_type->type_name);
  70                 decl_var *var = init_decl_var(predef_type->alias, 0, 0); /* FIXME: indirection */
  71                 decl_arg *def = init_decl_arg(type, var);
  72
  73                 T.defs = add_decl_typedef(T.defs, def);
  74         }
  75         for (predef_const = &psi_predef_consts[0]; predef_const->type_tag; ++predef_const) {
  76                 impl_def_val *val = init_impl_def_val(predef_const->val_type_tag, predef_const->val_text);
  77                 const_type *type = init_const_type(predef_const->type_tag, predef_const->type_name);
  78                 constant *constant = init_constant(type, predef_const->var_name, val);
  79
  80                 T.consts = add_constant(T.consts, constant);
  81         }
  82         for (predef_struct = &psi_predef_structs[0]; predef_struct->type_tag; ++predef_struct) {
  83                 struct psi_predef_struct *member;
  84                 decl_args *dargs = init_decl_args(NULL);
  85                 decl_struct *dstruct = init_decl_struct(predef_struct->var_name, dargs);
  86
  87                 dstruct->size = predef_struct->size;
  88                 for (member = &predef_struct[1]; member->type_tag; ++member) {
  89                         decl_type *type;
  90                         decl_var *dvar;
  91                         decl_arg *darg;
  92
  93                         type = init_decl_type(member->type_tag, member->type_name);
  94                         dvar = init_decl_var(member->var_name, member->pointer_level, member->array_size);
  95                         darg = init_decl_arg(type, dvar);
  96                         darg->layout = init_decl_struct_layout(member->offset, member->size);
  97                         dargs = add_decl_arg(dargs, darg);
  98                 }
  99
 100                 T.structs = add_decl_struct(T.structs, dstruct);
 101                 predef_struct = member;
 102         }
 103         for (predef_decl = &psi_predef_decls[0]; predef_decl->type_tag; ++predef_decl) {
 104                 struct psi_predef_decl *farg;
 105                 decl_type *ftype = init_decl_type(predef_decl->type_tag, predef_decl->type_name);
 106                 decl_var *fname = init_decl_var(predef_decl->var_name, predef_decl->pointer_level, predef_decl->array_size);
 107                 decl_arg *func = init_decl_arg(ftype, fname);
 108                 decl_args *args = init_decl_args(NULL);
 109                 decl *decl = init_decl(init_decl_abi("default"), func, args);
 110
 111                 for (farg = &predef_decl[1]; farg->type_tag; ++farg) {
 112                         decl_type *arg_type = init_decl_type(farg->type_tag, farg->type_name);
 113                         decl_var *arg_var = init_decl_var(farg->var_name, farg->pointer_level, farg->array_size);
 114                         decl_arg *darg = init_decl_arg(arg_type, arg_var);
 115                         args = add_decl_arg(args, darg);
 116                 }
 117
 118                 T.decls = add_decl(T.decls, decl);
 119                 predef_decl = farg;
 120         }
 121
 122         for (predef_decl = &psi_predef_vararg_decls[0]; predef_decl->type_tag; ++predef_decl) {
 123                 struct psi_predef_decl *farg;
 124                 decl_type *ftype = init_decl_type(predef_decl->type_tag, predef_decl->type_name);
 125                 decl_var *fname = init_decl_var(predef_decl->var_name, predef_decl->pointer_level, predef_decl->array_size);
 126                 decl_arg *func = init_decl_arg(ftype, fname);
 127                 decl_args *args = init_decl_args(NULL);
 128                 decl *decl = init_decl(init_decl_abi("default"), func, args);
 129
 130                 for (farg = &predef_decl[1]; farg->type_tag; ++farg) {
 131                         decl_type *arg_type = init_decl_type(farg->type_tag, farg->type_name);
 132                         decl_var *arg_var = init_decl_var(farg->var_name, farg->pointer_level, farg->array_size);
 133                         decl_arg *darg = init_decl_arg(arg_type, arg_var);
 134                         args = add_decl_arg(args, darg);
 135                 }
 136                 args->varargs = 1;
 137
 138                 T.decls = add_decl(T.decls, decl);
 139                 predef_decl = farg;
 140         }
 141
 142         PSI_ContextValidateData(PSI_DATA(C), &T);
 143
 144         C->count = 1;
 145         C->data = malloc(sizeof(*C->data));
 146         PSI_DataExchange(C->data, &T);
 147
 148         return C;
 149 }
 150
 151 static int psi_select_dirent(const struct dirent *entry)
 152 {
 153 #ifndef FNM_CASEFOLD
 154 #define FNM_CASEFOLD 0
 155 #endif
 156         return 0 == fnmatch("*.psi", entry->d_name, FNM_CASEFOLD);
 157 }
 158
 159 void PSI_ContextBuild(PSI_Context *C, const char *paths)
 160 {
 161         int i, n;
 162         char *sep = NULL, *cpy = strdup(paths), *ptr = cpy;
 163         struct dirent **entries = NULL;
 164
 165         do {
 166                 sep = strchr(ptr, ':');
 167
 168                 if (sep) {
 169                         *sep = 0;
 170                 }
 171
 172                 n = php_scandir(ptr, &entries, psi_select_dirent, alphasort);
 173
 174                 if (n > 0) {
 175                         for (i = 0; i < n; ++i) {
 176                                 char psi[MAXPATHLEN];
 177                                 PSI_Parser P;
 178
 179                                 if (MAXPATHLEN <= slprintf(psi, MAXPATHLEN, "%s/%s", ptr, entries[i]->d_name)) {
 180                                         C->error(C, NULL, PSI_WARNING, "Path to PSI file too long: %s/%s",
 181                                                 ptr, entries[i]->d_name);
 182                                 }
 183                                 if (!PSI_ParserInit(&P, psi, C->error, C->flags)) {
 184                                         C->error(C, NULL, PSI_WARNING, "Failed to init PSI parser (%s): %s",
 185                                                 psi, strerror(errno));
 186                                         continue;
 187                                 }
 188
 189                                 while (0 < PSI_ParserScan(&P)) {
 190                                         PSI_ParserParse(&P, PSI_TokenAlloc(&P));
 191                                         if (P.num == PSI_T_EOF) {
 192                                                 break;
 193                                         }
 194                                 }
 195
 196                                 PSI_ParserParse(&P, NULL);
 197                                 PSI_ContextValidate(C, &P);
 198                                 PSI_ParserDtor(&P);
 199                         }
 200                 }
 201
 202                 if (entries) {
 203                         for (i = 0; i < n; ++i) {
 204                                 free(entries[i]);
 205                         }
 206                         free(entries);
 207                 }
 208
 209                 ptr = sep + 1;
 210         } while (sep);
 211
 212
 213         if (PSI_ContextCompile(C) && SUCCESS != zend_register_functions(NULL, C->closures, NULL, MODULE_PERSISTENT)) {
 214                 C->error(C, NULL, PSI_WARNING, "Failed to register functions!");
 215         }
 216
 217         free(cpy);
 218
 219 }
 220
 221 zend_function_entry *PSI_ContextCompile(PSI_Context *C)
 222 {
 223         size_t i;
 224         zend_constant zc;
 225
 226         zc.flags = CONST_PERSISTENT|CONST_CS;
 227         zc.module_number = EG(current_module)->module_number;
 228
 229         if (C->consts) {
 230                 for (i = 0; i < C->consts->count; ++i) {
 231                         constant *c = C->consts->list[i];
 232
 233                         zc.name = zend_string_init(c->name + (c->name[0] == '\\'), strlen(c->name) - (c->name[0] == '\\'), 1);
 234                         ZVAL_NEW_STR(&zc.value, zend_string_init(c->val->text, strlen(c->val->text), 1));
 235
 236                         switch (c->type->type) {
 237                         case PSI_T_BOOL:
 238                                 convert_to_boolean(&zc.value);
 239                                 break;
 240                         case PSI_T_INT:
 241                                 convert_to_long(&zc.value);
 242                                 break;
 243                         case PSI_T_FLOAT:
 244                                 convert_to_double(&zc.value);
 245                                 break;
 246                         }
 247                         zend_register_constant(&zc);
 248                 }
 249         }
 250         if (C->enums) {
 251                 for (i = 0; i < C->enums->count; ++i) {
 252                         decl_enum *e = C->enums->list[i];
 253                         size_t j;
 254
 255                         for (j = 0; j < e->items->count; ++j) {
 256                                 decl_enum_item *i = e->items->list[j];
 257                                 zend_string *name = strpprintf(0, "psi\\%s\\%s", e->name, i->name);
 258
 259                                 zc.name = zend_string_dup(name, 1);
 260                                 ZVAL_LONG(&zc.value, psi_long_num_exp(i->num, NULL));
 261                                 zend_register_constant(&zc);
 262                                 zend_string_release(name);
 263                         }
 264                 }
 265         }
 266
 267         return C->closures = C->ops->compile(C);
 268 }
 269
 270
 271 void PSI_ContextCall(PSI_Context *C, decl_callinfo *decl_call, impl_vararg *va)
 272 {
 273         C->ops->call(C, decl_call, va);
 274 }
 275
 276
 277 void PSI_ContextDtor(PSI_Context *C)
 278 {
 279         size_t i;
 280         zend_function_entry *zfe;
 281
 282         if (C->ops->dtor) {
 283                 C->ops->dtor(C);
 284         }
 285
 286         free_decl_libs(&C->psi.libs);
 287
 288         if (C->data) {
 289                 for (i = 0; i < C->count; ++i) {
 290                         PSI_DataDtor(&C->data[i]);
 291                 }
 292                 free(C->data);
 293         }
 294
 295         if (C->closures) {
 296                 for (zfe = C->closures; zfe->fname; ++zfe) {
 297                         free((void *) zfe->arg_info);
 298                 }
 299                 free(C->closures);
 300         }
 301
 302         if (C->consts) {
 303                 if (C->consts->list) {
 304                         free(C->consts->list);
 305                 }
 306                 free(C->consts);
 307         }
 308         if (C->defs) {
 309                 if (C->defs->list) {
 310                         free(C->defs->list);
 311                 }
 312                 free(C->defs);
 313         }
 314         if (C->structs) {
 315                 if (C->structs->list) {
 316                         free(C->structs->list);
 317                 }
 318                 free(C->structs);
 319         }
 320         if (C->enums) {
 321                 if (C->enums->list) {
 322                         free(C->enums->list);
 323                 }
 324                 free(C->enums);
 325         }
 326         if (C->decls) {
 327                 if (C->decls->list) {
 328                         free(C->decls->list);
 329                 }
 330                 free(C->decls);
 331         }
 332         if (C->impls) {
 333                 if (C->impls->list) {
 334                         free(C->impls->list);
 335                 }
 336                 free(C->impls);
 337         }
 338
 339         memset(C, 0, sizeof(*C));
 340 }
 341
 342 void PSI_ContextFree(PSI_Context **C)
 343 {
 344         if (*C) {
 345                 PSI_ContextDtor(*C);
 346                 free(*C);
 347                 *C = NULL;
 348         }
 349 }