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godot/drivers/unix/dir_access_unix.cpp
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader! 
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

359 lines
7.8 KiB
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/*************************************************************************/
/* dir_access_unix.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "dir_access_unix.h"
#if defined(UNIX_ENABLED) || defined(LIBC_FILEIO_ENABLED)
#ifndef ANDROID_ENABLED
#include <sys/statvfs.h>
#endif
#include <stdio.h>
#include "os/memory.h"
#include "print_string.h"
#include <errno.h>
DirAccess *DirAccessUnix::create_fs() {
return memnew( DirAccessUnix );
}
bool DirAccessUnix::list_dir_begin() {
list_dir_end(); //close any previous dir opening!
// char real_current_dir_name[2048]; //is this enough?!
//getcwd(real_current_dir_name,2048);
//chdir(curent_path.utf8().get_data());
dir_stream = opendir(current_dir.utf8().get_data());
//chdir(real_current_dir_name);
if (!dir_stream)
return true; //error!
return false;
}
bool DirAccessUnix::file_exists(String p_file) {
GLOBAL_LOCK_FUNCTION
if (p_file.is_rel_path())
p_file=current_dir.plus_file(p_file);
p_file=fix_path(p_file);
struct stat flags;
bool success = (stat(p_file.utf8().get_data(),&flags)==0);
if (success && S_ISDIR(flags.st_mode)) {
success=false;
}
return success;
}
bool DirAccessUnix::dir_exists(String p_dir) {
GLOBAL_LOCK_FUNCTION
if (p_dir.is_rel_path())
p_dir=get_current_dir().plus_file(p_dir);
p_dir=fix_path(p_dir);
struct stat flags;
bool success = (stat(p_dir.utf8().get_data(),&flags)==0);
if (success && S_ISDIR(flags.st_mode))
return true;
return false;
}
uint64_t DirAccessUnix::get_modified_time(String p_file) {
if (p_file.is_rel_path())
p_file=current_dir.plus_file(p_file);
p_file=fix_path(p_file);
struct stat flags;
bool success = (stat(p_file.utf8().get_data(),&flags)==0);
if (success) {
return flags.st_mtime;
} else {
ERR_FAIL_V(0);
};
return 0;
};
String DirAccessUnix::get_next() {
if (!dir_stream)
return "";
dirent *entry;
entry=readdir(dir_stream);
if (entry==NULL) {
list_dir_end();
return "";
}
//typedef struct stat Stat;
struct stat flags;
String fname = fix_unicode_name(entry->d_name);
String f=current_dir.plus_file(fname);
if (stat(f.utf8().get_data(),&flags)==0) {
if (S_ISDIR(flags.st_mode)) {
_cisdir=true;
} else {
_cisdir=false;
}
} else {
_cisdir=false;
}
_cishidden=(fname!="." && fname!=".." && fname.begins_with("."));
return fname;
}
bool DirAccessUnix::current_is_dir() const {
return _cisdir;
}
bool DirAccessUnix::current_is_hidden() const {
return _cishidden;
}
void DirAccessUnix::list_dir_end() {
if (dir_stream)
closedir(dir_stream);
dir_stream=0;
_cisdir=false;
}
int DirAccessUnix::get_drive_count() {
return 0;
}
String DirAccessUnix::get_drive(int p_drive) {
return "";
}
Error DirAccessUnix::make_dir(String p_dir) {
GLOBAL_LOCK_FUNCTION
if (p_dir.is_rel_path())
p_dir=get_current_dir().plus_file(p_dir);
p_dir=fix_path(p_dir);
#if 1
bool success=(mkdir(p_dir.utf8().get_data(), S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH)==0);
int err = errno;
#else
char real_current_dir_name[2048];
getcwd(real_current_dir_name,2048);
chdir(current_dir.utf8().get_data()); //ascii since this may be unicode or wathever the host os wants
bool success=(mkdir(p_dir.utf8().get_data(), S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH)==0);
int err = errno;
chdir(real_current_dir_name);
#endif
if (success) {
return OK;
};
if (err == EEXIST) {
return ERR_ALREADY_EXISTS;
};
return ERR_CANT_CREATE;
}
Error DirAccessUnix::change_dir(String p_dir) {
GLOBAL_LOCK_FUNCTION
p_dir=fix_path(p_dir);
char real_current_dir_name[2048];
getcwd(real_current_dir_name,2048);
String prev_dir;
if (prev_dir.parse_utf8(real_current_dir_name))
prev_dir=real_current_dir_name; //no utf8, maybe latin?
chdir(current_dir.utf8().get_data()); //ascii since this may be unicode or wathever the host os wants
bool worked=(chdir(p_dir.utf8().get_data())==0); // we can only give this utf8
String base = _get_root_path();
if (base!="") {
getcwd(real_current_dir_name,2048);
String new_dir;
new_dir.parse_utf8(real_current_dir_name);
if (!new_dir.begins_with(base))
worked=false;
}
if (worked) {
getcwd(real_current_dir_name,2048);
if (current_dir.parse_utf8(real_current_dir_name))
current_dir=real_current_dir_name; //no utf8, maybe latin?
}
chdir(prev_dir.utf8().get_data());
return worked?OK:ERR_INVALID_PARAMETER;
}
String DirAccessUnix::get_current_dir() {
String base = _get_root_path();
if (base!="") {
String bd = current_dir.replace_first(base,"");
if (bd.begins_with("/"))
return _get_root_string()+bd.substr(1,bd.length());
else
return _get_root_string()+bd;
}
return current_dir;
}
Error DirAccessUnix::rename(String p_path,String p_new_path) {
if (p_path.is_rel_path())
p_path=get_current_dir().plus_file(p_path);
p_path=fix_path(p_path);
if (p_new_path.is_rel_path())
p_new_path=get_current_dir().plus_file(p_new_path);
p_new_path=fix_path(p_new_path);
return ::rename(p_path.utf8().get_data(),p_new_path.utf8().get_data())==0?OK:FAILED;
}
Error DirAccessUnix::remove(String p_path) {
if (p_path.is_rel_path())
p_path=get_current_dir().plus_file(p_path);
p_path=fix_path(p_path);
struct stat flags;
if ((stat(p_path.utf8().get_data(),&flags)!=0))
return FAILED;
if (S_ISDIR(flags.st_mode))
return ::rmdir(p_path.utf8().get_data())==0?OK:FAILED;
else
return ::unlink(p_path.utf8().get_data())==0?OK:FAILED;
}
size_t DirAccessUnix::get_space_left() {
#ifndef NO_STATVFS
struct statvfs vfs;
if (statvfs(current_dir.utf8().get_data(), &vfs) != 0) {
return 0;
};
return vfs.f_bfree * vfs.f_bsize;
#else
#warning THIS IS BROKEN
return 0;
#endif
};
DirAccessUnix::DirAccessUnix() {
dir_stream=0;
current_dir=".";
_cisdir=false;
/* determine drive count */
change_dir(current_dir);
}
DirAccessUnix::~DirAccessUnix() {
list_dir_end();
}
#endif //posix_enabled
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