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);
81 file_create_url(char *url)
83 struct file *file= g_new0(struct file,1);
84 char *cmd=g_strdup_printf("curl %s",url);
85 file->name = g_strdup(url);
86 file->stdfile=popen(cmd,"r");
87 file->fd=fileno(file->stdfile);
94 int file_is_dir(char *name)
97 if (! stat(name, &buf)) {
98 return S_ISDIR(buf.st_mode);
105 file_size(struct file *file)
110 int file_mkdir(char *name, int pflag)
112 char buffer[strlen(name)+1];
115 dbg(1,"enter %s %d\n",name,pflag);
117 if (file_is_dir(name))
119 #ifdef HAVE_API_WIN32_BASE
122 return mkdir(name, 0777);
125 strcpy(buffer, name);
127 while ((next=strchr(next, '/'))) {
130 ret=file_mkdir(buffer, 0);
138 return file_mkdir(buffer, 0);
142 file_mmap(struct file *file)
144 #if defined(_WIN32) || defined(__CEGCC__)
145 file->begin = (char*)mmap_readonly_win32( file->name, &file->map_handle, &file->map_file );
147 file->begin=mmap(NULL, file->size, PROT_READ|PROT_WRITE, MAP_PRIVATE, file->fd, 0);
148 dbg_assert(file->begin != NULL);
149 if (file->begin == (void *)0xffffffff) {
154 dbg_assert(file->begin != (void *)0xffffffff);
155 file->end=file->begin+file->size;
161 file_data_read(struct file *file, long long offset, int size)
167 return file->begin+offset;
169 struct file_cache_id id={offset,size,file->name_id,0};
170 ret=cache_lookup(file_cache,&id);
173 ret=cache_insert_new(file_cache,&id,size);
176 lseek(file->fd, offset, SEEK_SET);
177 if (read(file->fd, ret, size) != size) {
178 file_data_free(file, ret);
186 file_data_read_special(struct file *file, int size, int *size_ret)
192 *size_ret=read(file->fd, ret, size);
197 file_data_read_all(struct file *file)
199 return file_data_read(file, 0, file->size);
203 file_data_write(struct file *file, long long offset, int size, unsigned char *data)
206 struct file_cache_id id={offset,size,file->name_id,0};
207 cache_flush(file_cache,&id);
209 lseek(file->fd, offset, SEEK_SET);
210 if (write(file->fd, data, size) != size)
212 if (file->size < offset+size)
213 file->size=offset+size;
218 file_get_contents(char *name, unsigned char **buffer, int *size)
221 file=file_create(name);
224 *size=file_size(file);
225 *buffer=file_data_read_all(file);
232 uncompress_int(Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen)
237 stream.next_in = (Bytef*)source;
238 stream.avail_in = (uInt)sourceLen;
239 stream.next_out = dest;
240 stream.avail_out = (uInt)*destLen;
242 stream.zalloc = (alloc_func)0;
243 stream.zfree = (free_func)0;
245 err = inflateInit2(&stream, -MAX_WBITS);
246 if (err != Z_OK) return err;
248 err = inflate(&stream, Z_FINISH);
249 if (err != Z_STREAM_END) {
251 if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0))
255 *destLen = stream.total_out;
257 err = inflateEnd(&stream);
262 file_data_read_compressed(struct file *file, long long offset, int size, int size_uncomp)
266 uLongf destLen=size_uncomp;
269 struct file_cache_id id={offset,size,file->name_id,1};
270 ret=cache_lookup(file_cache,&id);
273 ret=cache_insert_new(file_cache,&id,size_uncomp);
275 ret=g_malloc(size_uncomp);
276 lseek(file->fd, offset, SEEK_SET);
278 buffer = (char *)g_malloc(size);
279 if (read(file->fd, buffer, size) != size) {
283 if (uncompress_int(ret, &destLen, (Bytef *)buffer, size) != Z_OK) {
284 dbg(0,"uncompress failed\n");
295 file_data_free(struct file *file, unsigned char *data)
297 if (file->begin && data >= file->begin && data < file->end)
300 cache_entry_destroy(file_cache, data);
306 file_exists(char *name)
309 if (! stat(name, &buf))
315 file_remap_readonly(struct file *f)
317 #if defined(_WIN32) || defined(__CEGCC__)
320 munmap(f->begin, f->size);
321 begin=mmap(f->begin, f->size, PROT_READ, MAP_PRIVATE, f->fd, 0);
322 if (f->begin != begin)
323 printf("remap failed\n");
328 file_unmap(struct file *f)
330 #if defined(_WIN32) || defined(__CEGCC__)
331 mmap_unmap_win32( f->begin, f->map_handle , f->map_file );
333 munmap(f->begin, f->size);
338 file_opendir(char *dir)
344 file_readdir(void *hnd)
355 file_closedir(void *hnd)
361 file_create_caseinsensitive(char *name)
363 char dirname[strlen(name)+1];
369 ret=file_create(name);
373 strcpy(dirname, name);
374 p=dirname+strlen(name);
375 while (p > dirname) {
381 d=file_opendir(dirname);
384 while ((filename=file_readdir(d))) {
385 if (!strcasecmp(filename, p)) {
387 ret=file_create(dirname);
398 file_destroy(struct file *f)
400 switch (f->special) {
411 if ( f->begin != NULL )
420 struct file_wordexp {
425 struct file_wordexp *
426 file_wordexp_new(const char *pattern)
428 struct file_wordexp *ret=g_new0(struct file_wordexp, 1);
430 ret->err=wordexp(pattern, &ret->we, 0);
432 dbg(0,"wordexp('%s') returned %d\n", pattern, ret->err);
437 file_wordexp_get_count(struct file_wordexp *wexp)
439 return wexp->we.we_wordc;
443 file_wordexp_get_array(struct file_wordexp *wexp)
445 return wexp->we.we_wordv;
449 file_wordexp_destroy(struct file_wordexp *wexp)
458 file_get_param(struct file *file, struct param_list *param, int count)
461 param_add_string("Filename", file->name, ¶m, &count);
462 param_add_hex("Size", file->size, ¶m, &count);
467 file_version(struct file *file, int byname)
473 error=stat(file->name, &st);
475 error=fstat(file->fd, &st);
476 if (error || !file->version || file->mtime != st.st_mtime || file->ctime != st.st_ctime) {
477 file->mtime=st.st_mtime;
478 file->ctime=st.st_ctime;
480 dbg(0,"%s now version %d\n", file->name, file->version);
482 return file->version;
489 file_get_os_handle(struct file *file)
491 return (void *)(file->fd);
498 file_name_hash=g_hash_table_new(g_str_hash, g_str_equal);
499 file_cache=cache_new(sizeof(struct file_cache_id), CACHE_SIZE);