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godot/drivers/unix/dir_access_unix.cpp

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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 );
}
Error 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 ERR_CANT_OPEN; //error!
return OK;
}
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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