OpenTTD Source: src/os/unix/unix.cpp Source File

OpenTTD Source 15.0-beta1

unix.cpp
Go to the documentation of this file.
1/*
2 * This file is part of OpenTTD.
3 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
4 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
5 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
6 */
7
10#include "../../stdafx.h"
11#include "../../textbuf_gui.h"
12#include "../../debug.h"
13#include "../../string_func.h"
14#include "../../fios.h"
15#include "../../thread.h"
16
17
18#include <dirent.h>
19#include <unistd.h>
20#include <sys/stat.h>
21#include <time.h>
22#include <signal.h>
23#include <pthread.h>
24
25#ifdef WITH_SDL2
26#include <SDL.h>
27#endif
28
29#ifdef __EMSCRIPTEN__
30# include <emscripten.h>
31#endif
32
33#ifdef __APPLE__
34# include <sys/mount.h>
35#elif (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L) || defined(__GLIBC__)
36# define HAS_STATVFS
37#endif
38
39#if defined(OPENBSD) || defined(__NetBSD__) || defined(__FreeBSD__)
40# define HAS_SYSCTL
41#endif
42
43#ifdef HAS_STATVFS
44#include <sys/statvfs.h>
45#endif
46
47#ifdef HAS_SYSCTL
48#include <sys/sysctl.h>
49#endif
50
51#if defined(__APPLE__)
52# include "../macosx/macos.h"
53#endif
54
55#include "../../safeguards.h"
56
57bool FiosIsRoot(const std::string &path)
58{
59 return path == PATHSEP;
60}
61
62void FiosGetDrives(FileList &)
63{
64 return;
65}
66
67std::optional<uint64_t> FiosGetDiskFreeSpace(const std::string &path)
68{
69#ifdef __APPLE__
70 struct statfs s;
71
72 if (statfs(path.c_str(), &s) == 0) return static_cast<uint64_t>(s.f_bsize) * s.f_bavail;
73#elif defined(HAS_STATVFS)
74 struct statvfs s;
75
76 if (statvfs(path.c_str(), &s) == 0) return static_cast<uint64_t>(s.f_frsize) * s.f_bavail;
77#endif
78 return std::nullopt;
79}
80
81bool FiosIsHiddenFile(const std::filesystem::path &path)
82{
83 return path.filename().string().starts_with(".");
84}
85
86#ifdef WITH_ICONV
87
88#include <iconv.h>
89#include "../../debug.h"
90#include "../../string_func.h"
91
92const char *GetCurrentLocale(const char *param);
93
94#define INTERNALCODE "UTF-8"
95
101static const char *GetLocalCode()
102{
103#if defined(__APPLE__)
104 return "UTF-8-MAC";
105#else
106 /* Strip locale (eg en_US.UTF-8) to only have UTF-8 */
107 const char *locale = GetCurrentLocale("LC_CTYPE");
108 if (locale != nullptr) locale = strchr(locale, '.');
109
110 return (locale == nullptr) ? "" : locale + 1;
111#endif
112}
113
118static std::string convert_tofrom_fs(iconv_t convd, const std::string &name)
119{
120 /* There are different implementations of iconv. The older ones,
121 * e.g. SUSv2, pass a const pointer, whereas the newer ones, e.g.
122 * IEEE 1003.1 (2004), pass a non-const pointer. */
123#ifdef HAVE_NON_CONST_ICONV
124 char *inbuf = const_cast<char*>(name.data());
125#else
126 const char *inbuf = name.data();
127#endif
128
129 /* If the output is UTF-32, then 1 ASCII character becomes 4 bytes. */
130 size_t inlen = name.size();
131 std::string buf(inlen * 4, '\0');
132
133 size_t outlen = buf.size();
134 char *outbuf = buf.data();
135 iconv(convd, nullptr, nullptr, nullptr, nullptr);
136 if (iconv(convd, &inbuf, &inlen, &outbuf, &outlen) == SIZE_MAX) {
137 Debug(misc, 0, "[iconv] error converting '{}'. Errno {}", name, errno);
138 return name;
139 }
140
141 buf.resize(outbuf - buf.data());
142 return buf;
143}
144
150std::string OTTD2FS(const std::string &name)
151{
152 static iconv_t convd = (iconv_t)(-1);
153 if (convd == (iconv_t)(-1)) {
154 const char *env = GetLocalCode();
155 convd = iconv_open(env, INTERNALCODE);
156 if (convd == (iconv_t)(-1)) {
157 Debug(misc, 0, "[iconv] conversion from codeset '{}' to '{}' unsupported", INTERNALCODE, env);
158 return name;
159 }
160 }
161
162 return convert_tofrom_fs(convd, name);
163}
164
170std::string FS2OTTD(const std::string &name)
171{
172 static iconv_t convd = (iconv_t)(-1);
173 if (convd == (iconv_t)(-1)) {
174 const char *env = GetLocalCode();
175 convd = iconv_open(INTERNALCODE, env);
176 if (convd == (iconv_t)(-1)) {
177 Debug(misc, 0, "[iconv] conversion from codeset '{}' to '{}' unsupported", env, INTERNALCODE);
178 return name;
179 }
180 }
181
182 return convert_tofrom_fs(convd, name);
183}
184
185#endif /* WITH_ICONV */
186
187void ShowInfoI(const std::string &str)
188{
189 fmt::print(stderr, "{}\n", str);
190}
191
192#if !defined(__APPLE__)
193void ShowOSErrorBox(const char *buf, bool)
194{
195 /* All unix systems, except OSX. Only use escape codes on a TTY. */
196 if (isatty(fileno(stderr))) {
197 fmt::print(stderr, "\033[1;31mError: {}\033[0;39m\n", buf);
198 } else {
199 fmt::print(stderr, "Error: {}\n", buf);
200 }
201}
202#endif
203
204#ifndef WITH_COCOA
205std::optional<std::string> GetClipboardContents()
206{
207#ifdef WITH_SDL2
208 if (SDL_HasClipboardText() == SDL_FALSE) return std::nullopt;
209
210 char *clip = SDL_GetClipboardText();
211 if (clip != nullptr) {
212 std::string result = clip;
213 SDL_free(clip);
214 return result;
215 }
216#endif
217
218 return std::nullopt;
219}
220#endif
221
222
223#if defined(__EMSCRIPTEN__)
224void OSOpenBrowser(const std::string &url)
225{
226 /* Implementation in pre.js */
227 EM_ASM({ if (window["openttd_open_url"]) window.openttd_open_url($0, $1) }, url.c_str(), url.size());
228}
229#elif !defined( __APPLE__)
230void OSOpenBrowser(const std::string &url)
231{
232 pid_t child_pid = fork();
233 if (child_pid != 0) return;
234
235 const char *args[3];
236 args[0] = "xdg-open";
237 args[1] = url.c_str();
238 args[2] = nullptr;
239 execvp(args[0], const_cast<char * const *>(args));
240 Debug(misc, 0, "Failed to open url: {}", url);
241 exit(0);
242}
243#endif /* __APPLE__ */
244
245 void SetCurrentThreadName([[maybe_unused]] const char *threadName)
246{
247#if defined(__GLIBC__)
248 if (threadName) pthread_setname_np(pthread_self(), threadName);
249#endif /* defined(__GLIBC__) */
250#if defined(__APPLE__)
251 MacOSSetThreadName(threadName);
252#endif /* defined(__APPLE__) */
253}
FileList
List of file information.
Definition fios.h:88
Debug
#define Debug(category, level, format_string,...)
Ouptut a line of debugging information.
Definition debug.h:37
GetClipboardContents
std::optional< std::string > GetClipboardContents()
Try to retrieve the current clipboard contents.
Definition unix.cpp:205
SetCurrentThreadName
void SetCurrentThreadName(const char *threadName)
Name the thread this function is called on for the debugger.
Definition unix.cpp:245
OTTD2FS
std::wstring OTTD2FS(const std::string &name)
Convert from OpenTTD's encoding to a wide string.
Definition win32.cpp:354
FS2OTTD
std::string FS2OTTD(const std::wstring &name)
Convert to OpenTTD's encoding from a wide string.
Definition win32.cpp:337
GetCurrentLocale
const char * GetCurrentLocale(const char *)
Determine the current user's locale.
Definition win32.cpp:398