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
47 static GHashTable *file_name_hash;
50 static struct cache *file_cache;
52 struct file_cache_id {
57 } __attribute__ ((packed));
60 file_create(char *name)
63 struct file *file= g_new0(struct file,1);
65 file->fd=open(name, O_RDONLY|O_LARGEFILE | O_BINARY);
70 dbg(1,"fd=%d\n", file->fd);
71 fstat(file->fd, &stat);
72 file->size=stat.st_size;
73 dbg(1,"size=%Ld\n", file->size);
74 file->name = g_strdup(name);
75 dbg_assert(file != NULL);
79 int file_is_dir(char *name)
82 if (! stat(name, &buf)) {
83 return S_ISDIR(buf.st_mode);
90 file_size(struct file *file)
95 int file_mkdir(char *name, int pflag)
97 char buffer[strlen(name)+1];
100 dbg(1,"enter %s %d\n",name,pflag);
102 if (file_is_dir(name))
104 #ifdef HAVE_API_WIN32_BASE
107 return mkdir(name, 0777);
110 strcpy(buffer, name);
112 while ((next=strchr(next, '/'))) {
115 ret=file_mkdir(buffer, 0);
123 return file_mkdir(buffer, 0);
127 file_mmap(struct file *file)
129 #if defined(_WIN32) || defined(__CEGCC__)
130 file->begin = (char*)mmap_readonly_win32( file->name, &file->map_handle, &file->map_file );
132 file->begin=mmap(NULL, file->size, PROT_READ|PROT_WRITE, MAP_PRIVATE, file->fd, 0);
133 dbg_assert(file->begin != NULL);
134 if (file->begin == (void *)0xffffffff) {
139 dbg_assert(file->begin != (void *)0xffffffff);
140 file->end=file->begin+file->size;
146 file_data_read(struct file *file, long long offset, int size)
150 return file->begin+offset;
152 struct file_cache_id id={offset,size,file->name_id,0};
153 ret=cache_lookup(file_cache,&id);
156 ret=cache_insert_new(file_cache,&id,size);
159 lseek(file->fd, offset, SEEK_SET);
160 if (read(file->fd, ret, size) != size) {
161 file_data_free(file, ret);
169 file_data_read_all(struct file *file)
171 return file_data_read(file, 0, file->size);
175 file_get_contents(char *name, unsigned char **buffer, int *size)
178 file=file_create(name);
181 *size=file_size(file);
182 *buffer=file_data_read_all(file);
189 uncompress_int(Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen)
194 stream.next_in = (Bytef*)source;
195 stream.avail_in = (uInt)sourceLen;
196 stream.next_out = dest;
197 stream.avail_out = (uInt)*destLen;
199 stream.zalloc = (alloc_func)0;
200 stream.zfree = (free_func)0;
202 err = inflateInit2(&stream, -MAX_WBITS);
203 if (err != Z_OK) return err;
205 err = inflate(&stream, Z_FINISH);
206 if (err != Z_STREAM_END) {
208 if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0))
212 *destLen = stream.total_out;
214 err = inflateEnd(&stream);
219 file_data_read_compressed(struct file *file, long long offset, int size, int size_uncomp)
223 uLongf destLen=size_uncomp;
226 struct file_cache_id id={offset,size,file->name_id,1};
227 ret=cache_lookup(file_cache,&id);
230 ret=cache_insert_new(file_cache,&id,size_uncomp);
232 ret=g_malloc(size_uncomp);
233 lseek(file->fd, offset, SEEK_SET);
234 if (read(file->fd, buffer, size) != size) {
238 if (uncompress_int(ret, &destLen, (Bytef *)buffer, size) != Z_OK) {
239 dbg(0,"uncompress failed\n");
248 file_data_free(struct file *file, unsigned char *data)
250 if (file->begin && data >= file->begin && data < file->end)
253 cache_entry_destroy(file_cache, data);
259 file_exists(char *name)
262 if (! stat(name, &buf))
268 file_remap_readonly(struct file *f)
270 #if defined(_WIN32) || defined(__CEGCC__)
273 munmap(f->begin, f->size);
274 begin=mmap(f->begin, f->size, PROT_READ, MAP_PRIVATE, f->fd, 0);
275 if (f->begin != begin)
276 printf("remap failed\n");
281 file_unmap(struct file *f)
283 #if defined(_WIN32) || defined(__CEGCC__)
284 mmap_unmap_win32( f->begin, f->map_handle , f->map_file );
286 munmap(f->begin, f->size);
291 file_opendir(char *dir)
297 file_readdir(void *hnd)
308 file_closedir(void *hnd)
314 file_create_caseinsensitive(char *name)
316 char dirname[strlen(name)+1];
322 ret=file_create(name);
326 strcpy(dirname, name);
327 p=dirname+strlen(name);
328 while (p > dirname) {
334 d=file_opendir(dirname);
337 while ((filename=file_readdir(d))) {
338 if (!strcasecmp(filename, p)) {
340 ret=file_create(dirname);
351 file_destroy(struct file *f)
355 if ( f->begin != NULL )
364 struct file_wordexp {
369 struct file_wordexp *
370 file_wordexp_new(const char *pattern)
372 struct file_wordexp *ret=g_new0(struct file_wordexp, 1);
374 ret->err=wordexp(pattern, &ret->we, 0);
376 dbg(0,"wordexp('%s') returned %d\n", pattern, ret->err);
381 file_wordexp_get_count(struct file_wordexp *wexp)
383 return wexp->we.we_wordc;
387 file_wordexp_get_array(struct file_wordexp *wexp)
389 return wexp->we.we_wordv;
393 file_wordexp_destroy(struct file_wordexp *wexp)
402 file_get_param(struct file *file, struct param_list *param, int count)
405 param_add_string("Filename", file->name, ¶m, &count);
406 param_add_hex("Size", file->size, ¶m, &count);
411 file_version(struct file *file, int byname)
417 error=stat(file->name, &st);
419 error=fstat(file->fd, &st);
420 if (error || !file->version || file->mtime != st.st_mtime || file->ctime != st.st_ctime) {
421 file->mtime=st.st_mtime;
422 file->ctime=st.st_ctime;
424 dbg(0,"%s now version %d\n", file->name, file->version);
426 return file->version;
433 file_get_os_handle(struct file *file)
435 return (void *)(file->fd);
442 file_name_hash=g_hash_table_new(g_str_hash, g_str_equal);
443 file_cache=cache_new(sizeof(struct file_cache_id), CACHE_SIZE);