2 * Navit, a modular navigation system.
3 * Copyright (C) 2005-2008 Navit Team
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * version 2 as published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
20 #define _FILE_OFFSET_BITS 64
21 #define _LARGEFILE_SOURCE
22 #define _LARGEFILE64_SOURCE
33 #include <LzmaTypes.h>
49 static GHashTable *file_name_hash;
52 static struct cache *file_cache;
54 struct file_cache_id {
59 } __attribute__ ((packed));
62 file_create(char *name)
65 struct file *file= g_new0(struct file,1);
67 file->fd=open(name, O_RDONLY|O_LARGEFILE | O_BINARY);
72 dbg(1,"fd=%d\n", file->fd);
73 fstat(file->fd, &stat);
74 file->size=stat.st_size;
75 dbg(1,"size=%Ld\n", file->size);
76 file->name = g_strdup(name);
77 dbg_assert(file != NULL);
81 int file_is_dir(char *name)
84 if (! stat(name, &buf)) {
85 return S_ISDIR(buf.st_mode);
92 file_size(struct file *file)
97 int file_mkdir(char *name, int pflag)
99 char buffer[strlen(name)+1];
102 dbg(1,"enter %s %d\n",name,pflag);
104 if (file_is_dir(name))
106 #ifdef HAVE_API_WIN32_BASE
109 return mkdir(name, 0777);
112 strcpy(buffer, name);
114 while ((next=strchr(next, '/'))) {
117 ret=file_mkdir(buffer, 0);
125 return file_mkdir(buffer, 0);
129 file_mmap(struct file *file)
131 #if defined(_WIN32) || defined(__CEGCC__)
132 file->begin = (char*)mmap_readonly_win32( file->name, &file->map_handle, &file->map_file );
134 file->begin=mmap(NULL, file->size, PROT_READ|PROT_WRITE, MAP_PRIVATE, file->fd, 0);
135 dbg_assert(file->begin != NULL);
136 if (file->begin == (void *)0xffffffff) {
141 dbg_assert(file->begin != (void *)0xffffffff);
142 file->end=file->begin+file->size;
148 file_data_read(struct file *file, long long offset, int size)
152 return file->begin+offset;
154 struct file_cache_id id={offset,size,file->name_id,0};
155 ret=cache_lookup(file_cache,&id);
158 ret=cache_insert_new(file_cache,&id,size);
161 lseek(file->fd, offset, SEEK_SET);
162 if (read(file->fd, ret, size) != size) {
163 file_data_free(file, ret);
171 file_data_read_all(struct file *file)
173 return file_data_read(file, 0, file->size);
177 file_get_contents(char *name, unsigned char **buffer, int *size)
180 file=file_create(name);
183 *size=file_size(file);
184 *buffer=file_data_read_all(file);
191 uncompress_int_zip(Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen)
196 stream.next_in = (Bytef*)source;
197 stream.avail_in = (uInt)sourceLen;
198 stream.next_out = dest;
199 stream.avail_out = (uInt)*destLen;
201 stream.zalloc = (alloc_func)0;
202 stream.zfree = (free_func)0;
204 err = inflateInit2(&stream, -MAX_WBITS);
205 if (err != Z_OK) return err;
207 err = inflate(&stream, Z_FINISH);
208 if (err != Z_STREAM_END) {
210 if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0))
214 *destLen = stream.total_out;
216 err = inflateEnd(&stream);
217 return (err == Z_OK);
221 uncompress_int_lzma(Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen)
224 void *SzAlloc(void *p, size_t size) { p = p; return g_malloc(size); }
225 void SzFree(void *p, void *address) { p = p; g_free(address); }
226 ISzAlloc alloc = { SzAlloc, SzFree };
230 srcLen = (sourceLen - LZMA_PROPS_SIZE);
232 res = LzmaDecode(dest, destLen, (source + LZMA_PROPS_SIZE), &srcLen, source, LZMA_PROPS_SIZE, LZMA_FINISH_ANY, &status, &alloc);
234 return ((res == SZ_OK) && (status != LZMA_STATUS_NOT_FINISHED));
238 file_data_read_compressed(struct file *file, long long offset, int method, int size, int size_uncomp)
242 uLongf destLen=size_uncomp;
245 struct file_cache_id id={offset,size,file->name_id,1};
246 ret=cache_lookup(file_cache,&id);
249 ret=cache_insert_new(file_cache,&id,size_uncomp);
251 ret=g_malloc(size_uncomp);
252 lseek(file->fd, offset, SEEK_SET);
254 buffer = (char *)g_malloc(size);
255 if (read(file->fd, buffer, size) != size) {
261 if (!uncompress_int_zip(ret, &destLen, (Bytef *)buffer, size)) {
262 dbg(0,"uncompress zip failed\n");
268 if (!uncompress_int_lzma(ret, &destLen, (Bytef *)buffer, size)) {
269 dbg(0,"uncompress lzma failed\n");
275 dbg(0, "unknown compression method\n");
286 file_data_free(struct file *file, unsigned char *data)
288 if (file->begin && data >= file->begin && data < file->end)
291 cache_entry_destroy(file_cache, data);
297 file_exists(char *name)
300 if (! stat(name, &buf))
306 file_remap_readonly(struct file *f)
308 #if defined(_WIN32) || defined(__CEGCC__)
311 munmap(f->begin, f->size);
312 begin=mmap(f->begin, f->size, PROT_READ, MAP_PRIVATE, f->fd, 0);
313 if (f->begin != begin)
314 printf("remap failed\n");
319 file_unmap(struct file *f)
321 #if defined(_WIN32) || defined(__CEGCC__)
322 mmap_unmap_win32( f->begin, f->map_handle , f->map_file );
324 munmap(f->begin, f->size);
329 file_opendir(char *dir)
335 file_readdir(void *hnd)
346 file_closedir(void *hnd)
352 file_create_caseinsensitive(char *name)
354 char dirname[strlen(name)+1];
360 ret=file_create(name);
364 strcpy(dirname, name);
365 p=dirname+strlen(name);
366 while (p > dirname) {
372 d=file_opendir(dirname);
375 while ((filename=file_readdir(d))) {
376 if (!strcasecmp(filename, p)) {
378 ret=file_create(dirname);
389 file_destroy(struct file *f)
393 if ( f->begin != NULL )
402 struct file_wordexp {
407 struct file_wordexp *
408 file_wordexp_new(const char *pattern)
410 struct file_wordexp *ret=g_new0(struct file_wordexp, 1);
412 ret->err=wordexp(pattern, &ret->we, 0);
414 dbg(0,"wordexp('%s') returned %d\n", pattern, ret->err);
419 file_wordexp_get_count(struct file_wordexp *wexp)
421 return wexp->we.we_wordc;
425 file_wordexp_get_array(struct file_wordexp *wexp)
427 return wexp->we.we_wordv;
431 file_wordexp_destroy(struct file_wordexp *wexp)
440 file_get_param(struct file *file, struct param_list *param, int count)
443 param_add_string("Filename", file->name, ¶m, &count);
444 param_add_hex("Size", file->size, ¶m, &count);
449 file_version(struct file *file, int byname)
455 error=stat(file->name, &st);
457 error=fstat(file->fd, &st);
458 if (error || !file->version || file->mtime != st.st_mtime || file->ctime != st.st_ctime) {
459 file->mtime=st.st_mtime;
460 file->ctime=st.st_ctime;
462 dbg(0,"%s now version %d\n", file->name, file->version);
464 return file->version;
471 file_get_os_handle(struct file *file)
473 return (void *)(file->fd);
480 file_name_hash=g_hash_table_new(g_str_hash, g_str_equal);
481 file_cache=cache_new(sizeof(struct file_cache_id), CACHE_SIZE);