604 lines
17 KiB
C++
604 lines
17 KiB
C++
/*************************************************************************/
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/* os_unix.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "os_unix.h"
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#ifdef UNIX_ENABLED
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#include "core/os/thread_dummy.h"
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#include "core/project_settings.h"
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#include "drivers/unix/dir_access_unix.h"
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#include "drivers/unix/file_access_unix.h"
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#include "drivers/unix/mutex_posix.h"
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#include "drivers/unix/net_socket_posix.h"
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#include "drivers/unix/rw_lock_posix.h"
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#include "drivers/unix/semaphore_posix.h"
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#include "drivers/unix/thread_posix.h"
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#include "servers/visual_server.h"
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#ifdef __APPLE__
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#include <mach-o/dyld.h>
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#include <mach/mach_time.h>
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#endif
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#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#endif
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#include <assert.h>
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#include <dlfcn.h>
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#include <errno.h>
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#include <poll.h>
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#include <signal.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <unistd.h>
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/// Clock Setup function (used by get_ticks_usec)
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static uint64_t _clock_start = 0;
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#if defined(__APPLE__)
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static double _clock_scale = 0;
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static void _setup_clock() {
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mach_timebase_info_data_t info;
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kern_return_t ret = mach_timebase_info(&info);
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ERR_FAIL_COND_MSG(ret != 0, "OS CLOCK IS NOT WORKING!");
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_clock_scale = ((double)info.numer / (double)info.denom) / 1000.0;
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_clock_start = mach_absolute_time() * _clock_scale;
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}
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#else
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#if defined(CLOCK_MONOTONIC_RAW) && !defined(JAVASCRIPT_ENABLED) // This is a better clock on Linux.
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#define GODOT_CLOCK CLOCK_MONOTONIC_RAW
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#else
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#define GODOT_CLOCK CLOCK_MONOTONIC
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#endif
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static void _setup_clock() {
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struct timespec tv_now = { 0, 0 };
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ERR_FAIL_COND_MSG(clock_gettime(GODOT_CLOCK, &tv_now) != 0, "OS CLOCK IS NOT WORKING!");
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_clock_start = ((uint64_t)tv_now.tv_nsec / 1000L) + (uint64_t)tv_now.tv_sec * 1000000L;
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}
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#endif
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void OS_Unix::debug_break() {
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assert(false);
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};
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static void handle_interrupt(int sig) {
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if (ScriptDebugger::get_singleton() == NULL)
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return;
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ScriptDebugger::get_singleton()->set_depth(-1);
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ScriptDebugger::get_singleton()->set_lines_left(1);
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}
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void OS_Unix::initialize_debugging() {
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if (ScriptDebugger::get_singleton() != NULL) {
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struct sigaction action;
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memset(&action, 0, sizeof(action));
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action.sa_handler = handle_interrupt;
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sigaction(SIGINT, &action, NULL);
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}
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}
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int OS_Unix::unix_initialize_audio(int p_audio_driver) {
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return 0;
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}
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void OS_Unix::initialize_core() {
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#ifdef NO_THREADS
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ThreadDummy::make_default();
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SemaphoreDummy::make_default();
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MutexDummy::make_default();
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RWLockDummy::make_default();
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#else
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ThreadPosix::make_default();
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#if !defined(OSX_ENABLED) && !defined(IPHONE_ENABLED)
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SemaphorePosix::make_default();
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#endif
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MutexPosix::make_default();
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RWLockPosix::make_default();
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#endif
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FileAccess::make_default<FileAccessUnix>(FileAccess::ACCESS_RESOURCES);
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FileAccess::make_default<FileAccessUnix>(FileAccess::ACCESS_USERDATA);
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FileAccess::make_default<FileAccessUnix>(FileAccess::ACCESS_FILESYSTEM);
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//FileAccessBufferedFA<FileAccessUnix>::make_default();
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DirAccess::make_default<DirAccessUnix>(DirAccess::ACCESS_RESOURCES);
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DirAccess::make_default<DirAccessUnix>(DirAccess::ACCESS_USERDATA);
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DirAccess::make_default<DirAccessUnix>(DirAccess::ACCESS_FILESYSTEM);
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#ifndef NO_NETWORK
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NetSocketPosix::make_default();
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IP_Unix::make_default();
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#endif
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_setup_clock();
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}
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void OS_Unix::finalize_core() {
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NetSocketPosix::cleanup();
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}
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void OS_Unix::alert(const String &p_alert, const String &p_title) {
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fprintf(stderr, "ALERT: %s: %s\n", p_title.utf8().get_data(), p_alert.utf8().get_data());
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}
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String OS_Unix::get_stdin_string(bool p_block) {
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if (p_block) {
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char buff[1024];
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String ret = stdin_buf + fgets(buff, 1024, stdin);
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stdin_buf = "";
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return ret;
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}
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return "";
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}
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String OS_Unix::get_name() const {
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return "Unix";
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}
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uint64_t OS_Unix::get_unix_time() const {
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return time(NULL);
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};
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uint64_t OS_Unix::get_system_time_secs() const {
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struct timeval tv_now;
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gettimeofday(&tv_now, NULL);
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return uint64_t(tv_now.tv_sec);
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}
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uint64_t OS_Unix::get_system_time_msecs() const {
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struct timeval tv_now;
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gettimeofday(&tv_now, NULL);
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return uint64_t(tv_now.tv_sec) * 1000 + uint64_t(tv_now.tv_usec) / 1000;
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}
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OS::Date OS_Unix::get_date(bool utc) const {
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time_t t = time(NULL);
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struct tm lt;
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if (utc) {
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gmtime_r(&t, <);
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} else {
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localtime_r(&t, <);
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}
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Date ret;
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ret.year = 1900 + lt.tm_year;
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// Index starting at 1 to match OS_Unix::get_date
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// and Windows SYSTEMTIME and tm_mon follows the typical structure
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// of 0-11, noted here: http://www.cplusplus.com/reference/ctime/tm/
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ret.month = (Month)(lt.tm_mon + 1);
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ret.day = lt.tm_mday;
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ret.weekday = (Weekday)lt.tm_wday;
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ret.dst = lt.tm_isdst;
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return ret;
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}
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OS::Time OS_Unix::get_time(bool utc) const {
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time_t t = time(NULL);
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struct tm lt;
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if (utc) {
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gmtime_r(&t, <);
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} else {
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localtime_r(&t, <);
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}
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Time ret;
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ret.hour = lt.tm_hour;
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ret.min = lt.tm_min;
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ret.sec = lt.tm_sec;
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get_time_zone_info();
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return ret;
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}
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OS::TimeZoneInfo OS_Unix::get_time_zone_info() const {
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time_t t = time(NULL);
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struct tm lt;
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localtime_r(&t, <);
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char name[16];
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strftime(name, 16, "%Z", <);
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name[15] = 0;
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TimeZoneInfo ret;
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ret.name = name;
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char bias_buf[16];
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strftime(bias_buf, 16, "%z", <);
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int bias;
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bias_buf[15] = 0;
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sscanf(bias_buf, "%d", &bias);
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// convert from ISO 8601 (1 minute=1, 1 hour=100) to minutes
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int hour = (int)bias / 100;
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int minutes = bias % 100;
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if (bias < 0)
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ret.bias = hour * 60 - minutes;
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else
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ret.bias = hour * 60 + minutes;
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return ret;
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}
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void OS_Unix::delay_usec(uint32_t p_usec) const {
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struct timespec rem = { static_cast<time_t>(p_usec / 1000000), (static_cast<long>(p_usec) % 1000000) * 1000 };
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while (nanosleep(&rem, &rem) == EINTR) {
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}
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}
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uint64_t OS_Unix::get_ticks_usec() const {
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#if defined(__APPLE__)
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uint64_t longtime = mach_absolute_time() * _clock_scale;
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#else
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// Unchecked return. Static analyzers might complain.
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// If _setup_clock() succeeded, we assume clock_gettime() works.
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struct timespec tv_now = { 0, 0 };
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clock_gettime(GODOT_CLOCK, &tv_now);
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uint64_t longtime = ((uint64_t)tv_now.tv_nsec / 1000L) + (uint64_t)tv_now.tv_sec * 1000000L;
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#endif
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longtime -= _clock_start;
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return longtime;
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}
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Error OS_Unix::execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id, String *r_pipe, int *r_exitcode, bool read_stderr, Mutex *p_pipe_mutex) {
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#ifdef __EMSCRIPTEN__
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// Don't compile this code at all to avoid undefined references.
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// Actual virtual call goes to OS_JavaScript.
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ERR_FAIL_V(ERR_BUG);
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#else
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if (p_blocking && r_pipe) {
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String argss;
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argss = "\"" + p_path + "\"";
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for (int i = 0; i < p_arguments.size(); i++) {
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argss += String(" \"") + p_arguments[i] + "\"";
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}
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if (read_stderr) {
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argss += " 2>&1"; // Read stderr too
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} else {
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argss += " 2>/dev/null"; //silence stderr
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}
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FILE *f = popen(argss.utf8().get_data(), "r");
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ERR_FAIL_COND_V_MSG(!f, ERR_CANT_OPEN, "Cannot pipe stream from process running with following arguments '" + argss + "'.");
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char buf[65535];
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while (fgets(buf, 65535, f)) {
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if (p_pipe_mutex) {
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p_pipe_mutex->lock();
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}
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(*r_pipe) += String::utf8(buf);
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if (p_pipe_mutex) {
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p_pipe_mutex->unlock();
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}
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}
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int rv = pclose(f);
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if (r_exitcode)
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*r_exitcode = WEXITSTATUS(rv);
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return OK;
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}
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pid_t pid = fork();
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ERR_FAIL_COND_V(pid < 0, ERR_CANT_FORK);
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if (pid == 0) {
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// is child
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if (!p_blocking) {
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// For non blocking calls, create a new session-ID so parent won't wait for it.
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// This ensures the process won't go zombie at end.
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setsid();
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}
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Vector<CharString> cs;
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cs.push_back(p_path.utf8());
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for (int i = 0; i < p_arguments.size(); i++)
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cs.push_back(p_arguments[i].utf8());
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Vector<char *> args;
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for (int i = 0; i < cs.size(); i++)
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args.push_back((char *)cs[i].get_data());
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args.push_back(0);
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execvp(p_path.utf8().get_data(), &args[0]);
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// still alive? something failed..
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fprintf(stderr, "**ERROR** OS_Unix::execute - Could not create child process while executing: %s\n", p_path.utf8().get_data());
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raise(SIGKILL);
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}
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if (p_blocking) {
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int status;
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waitpid(pid, &status, 0);
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if (r_exitcode)
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*r_exitcode = WIFEXITED(status) ? WEXITSTATUS(status) : status;
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} else {
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if (r_child_id)
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*r_child_id = pid;
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}
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return OK;
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#endif
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}
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Error OS_Unix::kill(const ProcessID &p_pid) {
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int ret = ::kill(p_pid, SIGKILL);
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if (!ret) {
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//avoid zombie process
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int st;
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::waitpid(p_pid, &st, 0);
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}
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return ret ? ERR_INVALID_PARAMETER : OK;
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}
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int OS_Unix::get_process_id() const {
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return getpid();
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};
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bool OS_Unix::has_environment(const String &p_var) const {
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return getenv(p_var.utf8().get_data()) != NULL;
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}
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String OS_Unix::get_locale() const {
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if (!has_environment("LANG"))
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return "en";
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String locale = get_environment("LANG");
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int tp = locale.find(".");
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if (tp != -1)
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locale = locale.substr(0, tp);
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return locale;
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}
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Error OS_Unix::open_dynamic_library(const String p_path, void *&p_library_handle, bool p_also_set_library_path) {
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String path = p_path;
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if (FileAccess::exists(path) && path.is_rel_path()) {
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// dlopen expects a slash, in this case a leading ./ for it to be interpreted as a relative path,
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// otherwise it will end up searching various system directories for the lib instead and finally failing.
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path = "./" + path;
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}
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if (!FileAccess::exists(path)) {
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//this code exists so gdnative can load .so files from within the executable path
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path = get_executable_path().get_base_dir().plus_file(p_path.get_file());
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}
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if (!FileAccess::exists(path)) {
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//this code exists so gdnative can load .so files from a standard unix location
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path = get_executable_path().get_base_dir().plus_file("../lib").plus_file(p_path.get_file());
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}
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p_library_handle = dlopen(path.utf8().get_data(), RTLD_NOW);
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ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, "Can't open dynamic library: " + p_path + ". Error: " + dlerror());
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return OK;
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}
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Error OS_Unix::close_dynamic_library(void *p_library_handle) {
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if (dlclose(p_library_handle)) {
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return FAILED;
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}
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return OK;
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}
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Error OS_Unix::get_dynamic_library_symbol_handle(void *p_library_handle, const String p_name, void *&p_symbol_handle, bool p_optional) {
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const char *error;
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dlerror(); // Clear existing errors
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p_symbol_handle = dlsym(p_library_handle, p_name.utf8().get_data());
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error = dlerror();
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if (error != NULL) {
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ERR_FAIL_COND_V_MSG(!p_optional, ERR_CANT_RESOLVE, "Can't resolve symbol " + p_name + ". Error: " + error + ".");
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return ERR_CANT_RESOLVE;
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}
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return OK;
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}
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Error OS_Unix::set_cwd(const String &p_cwd) {
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if (chdir(p_cwd.utf8().get_data()) != 0)
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return ERR_CANT_OPEN;
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return OK;
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}
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String OS_Unix::get_environment(const String &p_var) const {
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if (getenv(p_var.utf8().get_data()))
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return getenv(p_var.utf8().get_data());
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return "";
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}
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bool OS_Unix::set_environment(const String &p_var, const String &p_value) const {
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return setenv(p_var.utf8().get_data(), p_value.utf8().get_data(), /* overwrite: */ true) == 0;
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}
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int OS_Unix::get_processor_count() const {
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return sysconf(_SC_NPROCESSORS_CONF);
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}
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String OS_Unix::get_user_data_dir() const {
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String appname = get_safe_dir_name(ProjectSettings::get_singleton()->get("application/config/name"));
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if (appname != "") {
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bool use_custom_dir = ProjectSettings::get_singleton()->get("application/config/use_custom_user_dir");
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if (use_custom_dir) {
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String custom_dir = get_safe_dir_name(ProjectSettings::get_singleton()->get("application/config/custom_user_dir_name"), true);
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if (custom_dir == "") {
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custom_dir = appname;
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}
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return get_data_path().plus_file(custom_dir);
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} else {
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return get_data_path().plus_file(get_godot_dir_name()).plus_file("app_userdata").plus_file(appname);
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}
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}
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return ProjectSettings::get_singleton()->get_resource_path();
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}
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String OS_Unix::get_executable_path() const {
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#ifdef __linux__
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//fix for running from a symlink
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char buf[256];
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memset(buf, 0, 256);
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ssize_t len = readlink("/proc/self/exe", buf, sizeof(buf));
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String b;
|
|
if (len > 0) {
|
|
b.parse_utf8(buf, len);
|
|
}
|
|
if (b == "") {
|
|
WARN_PRINT("Couldn't get executable path from /proc/self/exe, using argv[0]");
|
|
return OS::get_executable_path();
|
|
}
|
|
return b;
|
|
#elif defined(__OpenBSD__) || defined(__NetBSD__)
|
|
char resolved_path[MAXPATHLEN];
|
|
|
|
realpath(OS::get_executable_path().utf8().get_data(), resolved_path);
|
|
|
|
return String(resolved_path);
|
|
#elif defined(__FreeBSD__)
|
|
int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };
|
|
char buf[MAXPATHLEN];
|
|
size_t len = sizeof(buf);
|
|
if (sysctl(mib, 4, buf, &len, NULL, 0) != 0) {
|
|
WARN_PRINT("Couldn't get executable path from sysctl");
|
|
return OS::get_executable_path();
|
|
}
|
|
String b;
|
|
b.parse_utf8(buf);
|
|
return b;
|
|
#elif defined(__APPLE__)
|
|
char temp_path[1];
|
|
uint32_t buff_size = 1;
|
|
_NSGetExecutablePath(temp_path, &buff_size);
|
|
|
|
char *resolved_path = new char[buff_size + 1];
|
|
|
|
if (_NSGetExecutablePath(resolved_path, &buff_size) == 1)
|
|
WARN_PRINT("MAXPATHLEN is too small");
|
|
|
|
String path(resolved_path);
|
|
delete[] resolved_path;
|
|
|
|
return path;
|
|
#else
|
|
ERR_PRINT("Warning, don't know how to obtain executable path on this OS! Please override this function properly.");
|
|
return OS::get_executable_path();
|
|
#endif
|
|
}
|
|
|
|
void UnixTerminalLogger::log_error(const char *p_function, const char *p_file, int p_line, const char *p_code, const char *p_rationale, ErrorType p_type) {
|
|
if (!should_log(true)) {
|
|
return;
|
|
}
|
|
|
|
const char *err_details;
|
|
if (p_rationale && p_rationale[0])
|
|
err_details = p_rationale;
|
|
else
|
|
err_details = p_code;
|
|
|
|
// Disable color codes if stdout is not a TTY.
|
|
// This prevents Godot from writing ANSI escape codes when redirecting
|
|
// stdout and stderr to a file.
|
|
const bool tty = isatty(fileno(stdout));
|
|
const char *red = tty ? "\E[0;31m" : "";
|
|
const char *red_bold = tty ? "\E[1;31m" : "";
|
|
const char *yellow = tty ? "\E[0;33m" : "";
|
|
const char *yellow_bold = tty ? "\E[1;33m" : "";
|
|
const char *magenta = tty ? "\E[0;35m" : "";
|
|
const char *magenta_bold = tty ? "\E[1;35m" : "";
|
|
const char *cyan = tty ? "\E[0;36m" : "";
|
|
const char *cyan_bold = tty ? "\E[1;36m" : "";
|
|
const char *reset = tty ? "\E[0m" : "";
|
|
const char *bold = tty ? "\E[1m" : "";
|
|
|
|
switch (p_type) {
|
|
case ERR_WARNING:
|
|
logf_error("%sWARNING: %s: %s%s%s\n", yellow_bold, p_function, reset, bold, err_details);
|
|
logf_error("%s At: %s:%i.%s\n", yellow, p_file, p_line, reset);
|
|
break;
|
|
case ERR_SCRIPT:
|
|
logf_error("%sSCRIPT ERROR: %s: %s%s%s\n", magenta_bold, p_function, reset, bold, err_details);
|
|
logf_error("%s At: %s:%i.%s\n", magenta, p_file, p_line, reset);
|
|
break;
|
|
case ERR_SHADER:
|
|
logf_error("%sSHADER ERROR: %s: %s%s%s\n", cyan_bold, p_function, reset, bold, err_details);
|
|
logf_error("%s At: %s:%i.%s\n", cyan, p_file, p_line, reset);
|
|
break;
|
|
case ERR_ERROR:
|
|
default:
|
|
logf_error("%sERROR: %s: %s%s%s\n", red_bold, p_function, reset, bold, err_details);
|
|
logf_error("%s At: %s:%i.%s\n", red, p_file, p_line, reset);
|
|
break;
|
|
}
|
|
}
|
|
|
|
UnixTerminalLogger::~UnixTerminalLogger() {}
|
|
|
|
OS_Unix::OS_Unix() {
|
|
Vector<Logger *> loggers;
|
|
loggers.push_back(memnew(UnixTerminalLogger));
|
|
_set_logger(memnew(CompositeLogger(loggers)));
|
|
}
|
|
|
|
#endif
|