1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436
|
/* WEED is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
Weed is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
Weed is developed by:
Gabriel "Salsaman" Finch - http://lives.sourceforge.net
mainly based on LiViDO, which is developed by:
Niels Elburg - http://veejay.sf.net
Gabriel "Salsaman" Finch - http://lives.sourceforge.net
Denis "Jaromil" Rojo - http://freej.dyne.org
Tom Schouten - http://zwizwa.fartit.com
Andraz Tori - http://cvs.cinelerra.org
reviewed with suggestions and contributions from:
Silvano "Kysucix" Galliani - http://freej.dyne.org
Kentaro Fukuchi - http://megaui.net/fukuchi
Jun Iio - http://www.malib.net
Carlo Prelz - http://www2.fluido.as:8080/
*/
/* (C) Gabriel "Salsaman" Finch, 2005 - 2010*/
#define _SKIP_WEED_API_
#ifdef HAVE_SYSTEM_WEED
#include <weed/weed.h>
#include <weed/weed-host.h>
#else
#include "weed.h"
#include "weed-host.h"
#endif
extern weed_default_getter_f weed_default_get;
extern weed_leaf_get_f weed_leaf_get;
extern weed_leaf_set_f weed_leaf_set;
extern weed_leaf_set_f weed_leaf_set_plugin;
extern weed_plant_new_f weed_plant_new;
extern weed_plant_free_f weed_plant_free;
extern weed_leaf_delete_f weed_leaf_delete;
extern weed_plant_list_leaves_f weed_plant_list_leaves;
extern weed_leaf_num_elements_f weed_leaf_num_elements;
extern weed_leaf_element_size_f weed_leaf_element_size;
extern weed_leaf_seed_type_f weed_leaf_seed_type;
extern weed_leaf_get_flags_f weed_leaf_get_flags;
extern weed_leaf_set_flags_f weed_leaf_set_flags;
#include <string.h> // for malloc, memset, memcpy
#include <stdlib.h> // for free
static int _weed_default_get(weed_plant_t *plant, const char *key, int idx, void *value);
extern weed_malloc_f weed_malloc;
extern weed_free_f weed_free;
extern weed_memcpy_f weed_memcpy;
extern weed_memset_f weed_memset;
static weed_plant_t *_weed_plant_new(int plant_type);
static char **_weed_plant_list_leaves(weed_plant_t *plant);
static int _weed_leaf_set_caller(weed_plant_t *plant, const char *key, int seed_type, int num_elems,
void *value, int caller);
static int _weed_leaf_get(weed_plant_t *plant, const char *key, int idx, void *value);
static int _weed_leaf_num_elements(weed_plant_t *plant, const char *key);
static size_t _weed_leaf_element_size(weed_plant_t *plant, const char *key, int idx);
static int _weed_leaf_seed_type(weed_plant_t *plant, const char *key);
static int _weed_leaf_get_flags(weed_plant_t *plant, const char *key);
/* host only functions */
static void _weed_plant_free(weed_plant_t *plant);
static int _weed_leaf_set_flags(weed_plant_t *plant, const char *key, int flags);
static int _weed_leaf_delete(weed_plant_t *plant, const char *key);
static inline size_t weed_strlen (const char *string) {
size_t len=0;
size_t maxlen=(size_t)-2;
while (*(string++)!=0&&(len!=maxlen)) len++;
return len;
}
static inline char *weed_strdup (const char *string) {
size_t len;
char *ret=weed_malloc((len=weed_strlen(string))+1);
weed_memcpy(ret,string,len+1);
return ret;
}
static inline int weed_strcmp (const char *st1, const char *st2) {
while (!(*st1==0&&*st2==0)) {
if (*(st1)==0||*(st2)==0||*(st1++)!=*(st2++)) return 1;
}
return 0;
}
static inline int weed_seed_is_ptr (int seed) {
return (seed!=WEED_SEED_BOOLEAN&&seed!=WEED_SEED_INT&&seed!=WEED_SEED_DOUBLE&&seed!=WEED_SEED_STRING&&
seed!=WEED_SEED_INT64)?1:0;
}
static inline size_t weed_seed_get_size (int seed, void *value) {
return weed_seed_is_ptr (seed)?(sizeof(void *)):\
(seed==WEED_SEED_BOOLEAN||seed==WEED_SEED_INT)?4:\
(seed==WEED_SEED_DOUBLE)?8:\
(seed==WEED_SEED_INT64)?8:\
(seed==WEED_SEED_STRING)?weed_strlen((const char *)value):0;
}
static inline void weed_data_free(weed_data_t **data, int num_elems, int seed_type) {
register int i;
if (data==NULL) return;
for (i=0;i<num_elems;i++) {
if (!weed_seed_is_ptr(seed_type)||(seed_type==WEED_SEED_STRING&&data[i]->value!=NULL)) weed_free(data[i]->value);
weed_free(data[i]);
}
weed_free(data);
}
static inline weed_data_t **weed_data_new(int seed_type, int num_elems, void *value) {
register int i;
weed_data_t **data=NULL;
size_t size;
char **valuec=(char **)value;
void **valuev=(void **)value;
if (num_elems==0) return data;
if ((data=(weed_data_t **)weed_malloc(num_elems*sizeof(weed_data_t *)))==NULL) return ((void *)0);
for (i=0;i<num_elems;i++) {
if ((data[i]=(weed_data_t *)weed_malloc(sizeof(weed_data_t)))==NULL) {
weed_data_free(data,--i,seed_type);
return NULL;
}
if (weed_seed_is_ptr(seed_type)) data[i]->value=valuev[i];
else {
if (seed_type==WEED_SEED_STRING) {
size=weed_strlen(valuec[i]);
if (size>0) {
data[i]->value=weed_malloc((size=weed_strlen(valuec[i])));
weed_memcpy(data[i]->value,valuec[i],size);
}
else data[i]->value=NULL;
data[i]->size=size;
}
else
if ((data[i]->value=weed_malloc((size=weed_seed_get_size(seed_type,NULL))))!=NULL)
weed_memcpy(data[i]->value,(char *)value+i*size,size);
if (size>0&&data[i]->value==NULL) { // memory error
weed_data_free(data,--i,seed_type);
return NULL;
}
}
if (seed_type!=WEED_SEED_STRING) data[i]->size=weed_seed_get_size(seed_type,data[i]->value);
}
return data;
}
static inline weed_leaf_t *weed_find_leaf(weed_plant_t *leaf, const char *key) {
while (leaf!=NULL) {
if (!weed_strcmp((char *)leaf->key,(char *)key)) return leaf;
leaf=leaf->next;
}
return NULL;
}
static inline void weed_leaf_free(weed_leaf_t *leaf) {
weed_data_free (leaf->data,leaf->num_elements,leaf->seed_type);
weed_free ((char *)leaf->key);
weed_free (leaf);
}
static inline weed_leaf_t *weed_leaf_new(const char *key, int seed) {
weed_leaf_t *leaf=(weed_leaf_t *)weed_malloc(sizeof(weed_leaf_t));
if (leaf==NULL) return NULL;
if ((leaf->key=weed_strdup(key))==NULL) {
weed_free (leaf);
return NULL;
}
leaf->seed_type=seed;
leaf->data=NULL;
leaf->next=NULL;
leaf->num_elements=leaf->flags=0;
return leaf;
}
static inline void weed_leaf_append(weed_plant_t *leaf, weed_leaf_t *newleaf) {
weed_leaf_t *leafnext;
while (leaf!=NULL) {
if ((leafnext=leaf->next)==NULL) {
leaf->next=newleaf;
return;
}
leaf=leafnext;
}
}
static void _weed_plant_free(weed_plant_t *leaf) {
weed_leaf_t *leafnext;
while (leaf!=NULL) {
leafnext=leaf->next;
weed_leaf_free (leaf);
leaf=leafnext;
}
}
static int _weed_leaf_delete(weed_plant_t *plant, const char *key) {
weed_leaf_t *leaf=plant,*leafnext;
while (leaf->next!=NULL) {
if (!weed_strcmp((char *)leaf->next->key,(char *)key)) {
if (leaf->next->flags&WEED_LEAF_READONLY_HOST) return WEED_ERROR_LEAF_READONLY;
leafnext=leaf->next;
leaf->next=leaf->next->next;
weed_leaf_free(leafnext);
return WEED_NO_ERROR;
}
leaf=leaf->next;
}
return WEED_ERROR_NOSUCH_LEAF;
}
static int _weed_leaf_set_flags(weed_plant_t *plant, const char *key, int flags) {
weed_leaf_t *leaf=weed_find_leaf (plant, key);
if (leaf==NULL) return WEED_ERROR_NOSUCH_LEAF;
leaf->flags=flags;
return WEED_NO_ERROR;
}
static weed_plant_t *_weed_plant_new(int plant_type) {
weed_leaf_t *leaf;
if ((leaf=weed_leaf_new("type",WEED_SEED_INT))==NULL) return NULL;
if ((leaf->data=(weed_data_t **)weed_data_new (WEED_SEED_INT,1,&plant_type))==NULL) {
weed_free ((char *)leaf->key);
weed_free (leaf);
return NULL;
}
leaf->num_elements=1;
leaf->next=NULL;
_weed_leaf_set_flags (leaf,"type",WEED_LEAF_READONLY_PLUGIN|WEED_LEAF_READONLY_HOST);
return leaf;
}
static char **_weed_plant_list_leaves(weed_plant_t *plant) {
weed_leaf_t *leaf=plant;
char **leaflist;
register int i=1;
for (;leaf!=NULL;i++) {
leaf=leaf->next;
}
if ((leaflist=(char **)weed_malloc(i*sizeof(char *)))==NULL) return NULL;
i=0;
for (leaf=plant;leaf!=NULL;leaf=leaf->next) {
if ((leaflist[i]=weed_strdup(leaf->key))==NULL) {
for (--i;i>=0;i--) weed_free (leaflist[i]);
weed_free (leaflist);
return NULL;
}
i++;
}
leaflist[i]=NULL;
return leaflist;
}
static inline int _weed_leaf_set_caller(weed_plant_t *plant, const char *key, int seed_type, int num_elems,
void *value, int caller) {
weed_data_t **data=NULL;
weed_leaf_t *leaf=weed_find_leaf (plant,key);
if (leaf==NULL) {
if ((leaf=weed_leaf_new (key,seed_type))==NULL) return WEED_ERROR_MEMORY_ALLOCATION;
weed_leaf_append (plant,leaf);
}
else {
if ((caller==WEED_CALLER_PLUGIN&&leaf->flags&WEED_LEAF_READONLY_PLUGIN)||(caller==WEED_CALLER_HOST&&leaf->flags&WEED_LEAF_READONLY_HOST)) return WEED_ERROR_LEAF_READONLY;
if (seed_type!=leaf->seed_type) return WEED_ERROR_WRONG_SEED_TYPE;
weed_data_free (leaf->data,leaf->num_elements,seed_type);
leaf->data=NULL;
}
leaf->num_elements=0;
if (num_elems>0&&(data=weed_data_new (seed_type,num_elems,value))==NULL) {
return WEED_ERROR_MEMORY_ALLOCATION;
}
leaf->data=data;
leaf->num_elements=num_elems;
return WEED_NO_ERROR;
}
static int _weed_leaf_set(weed_plant_t *plant, const char *key, int seed_type, int num_elems, void *value) {
// host version
return _weed_leaf_set_caller (plant,key,seed_type,num_elems,value,WEED_CALLER_HOST);
}
static int _weed_leaf_set_plugin(weed_plant_t *plant, const char *key, int seed_type, int num_elems, void *value) {
// plugin version - host should pass this to plugin in host_info
return _weed_leaf_set_caller (plant,key,seed_type,num_elems,value,WEED_CALLER_PLUGIN);
}
static int _weed_default_get(weed_plant_t *plant, const char *key, int idx, void *value) {
// the plugin should use this only when bootstrapping in order to get functions
// weed_memcpy, weed_memset and weed_leaf_get
// here we must assume that the plugin does not yet have its memory functions, so we can only
// use the standard ones
// additionally, the prototype of this function must never change
weed_leaf_t *leaf=weed_find_leaf (plant,key);
if (leaf==NULL) return WEED_ERROR_NOSUCH_LEAF;
if (idx>=leaf->num_elements) return WEED_ERROR_NOSUCH_ELEMENT;
if (value==NULL) return WEED_NO_ERROR;
if (weed_seed_is_ptr (leaf->seed_type)) memcpy (value,&leaf->data[idx]->value,sizeof(void *));
else {
if (leaf->seed_type==WEED_SEED_STRING) {
size_t size=leaf->data[idx]->size;
char **valuecharptrptr=(char **)value;
if (size>0) memcpy(*valuecharptrptr,leaf->data[idx]->value,size);
memset(*valuecharptrptr+size,0,1);
}
else memcpy (value,leaf->data[idx]->value,weed_seed_get_size(leaf->seed_type,leaf->data[idx]->value));
}
return WEED_NO_ERROR;
}
static int _weed_leaf_get(weed_plant_t *plant, const char *key, int idx, void *value) {
weed_leaf_t *leaf=weed_find_leaf (plant,key);
if (leaf==NULL) return WEED_ERROR_NOSUCH_LEAF;
if (idx>=leaf->num_elements) return WEED_ERROR_NOSUCH_ELEMENT;
if (value==NULL) return WEED_NO_ERROR;
if (weed_seed_is_ptr (leaf->seed_type)) weed_memcpy (value,&leaf->data[idx]->value,sizeof(void *));
else {
if (leaf->seed_type==WEED_SEED_STRING) {
size_t size=leaf->data[idx]->size;
char **valuecharptrptr=(char **)value;
if (size>0) weed_memcpy(*valuecharptrptr,leaf->data[idx]->value,size);
weed_memset(*valuecharptrptr+size,0,1);
}
else weed_memcpy (value,leaf->data[idx]->value,weed_seed_get_size(leaf->seed_type,leaf->data[idx]->value));
}
return WEED_NO_ERROR;
}
static int _weed_leaf_num_elements(weed_plant_t *plant, const char *key) {
weed_leaf_t *leaf=weed_find_leaf (plant, key);
if (leaf==NULL) return 0;
return leaf->num_elements;
}
static size_t _weed_leaf_element_size(weed_plant_t *plant, const char *key, int idx) {
weed_leaf_t *leaf=weed_find_leaf (plant, key);
if (leaf==NULL||idx>=leaf->num_elements) return 0;
return leaf->data[idx]->size;
}
static int _weed_leaf_seed_type(weed_plant_t *plant, const char *key) {
weed_leaf_t *leaf=weed_find_leaf (plant, key);
if (leaf==NULL) return 0;
return leaf->seed_type;
}
static int _weed_leaf_get_flags(weed_plant_t *plant, const char *key) {
weed_leaf_t *leaf=weed_find_leaf (plant, key);
if (leaf==NULL) return 0;
return leaf->flags;
}
void weed_init(int api, weed_malloc_f _mallocf, weed_free_f _freef, weed_memcpy_f _memcpyf, weed_memset_f _memsetf) {
// this is called by the host in order for it to set its version of the functions
// *the plugin should never call this, instead the plugin functions are passed to the plugin
// from the host in the "host_info" plant*
switch (api) {
// higher API versions may use different functions, or add to them
case 100:
case 110:
case 120:
case 130:
case 131:
default:
weed_default_get=_weed_default_get;
weed_leaf_get=_weed_leaf_get;
weed_leaf_delete=_weed_leaf_delete;
weed_plant_free=_weed_plant_free;
weed_plant_new=_weed_plant_new;
weed_leaf_set=_weed_leaf_set;
weed_leaf_set_plugin=_weed_leaf_set_plugin;
weed_plant_list_leaves=_weed_plant_list_leaves;
weed_leaf_num_elements=_weed_leaf_num_elements;
weed_leaf_element_size=_weed_leaf_element_size;
weed_leaf_seed_type=_weed_leaf_seed_type;
weed_leaf_get_flags=_weed_leaf_get_flags;
weed_leaf_set_flags=_weed_leaf_set_flags;
}
if (_mallocf!=NULL) weed_malloc=_mallocf;
else weed_malloc=(weed_malloc_f)malloc;
if (_freef!=NULL) weed_free=_freef;
else weed_free=(weed_free_f)free;
if (_memcpyf!=NULL) weed_memcpy=_memcpyf;
else weed_memcpy=(weed_memcpy_f)memcpy;
if (_memsetf!=NULL) weed_memset=_memsetf;
else weed_memset=(weed_memset_f)memset;
}
|