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Add OS::is_process_running function.
Adds the is_process_running function to the native OS class and exposes it to script. This is implemented on Windows and Unix platforms. A stub is provided for other platforms that do not support this function. Documentation is updated to reflect new API function.
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@ -269,6 +269,10 @@ Error OS::kill(int p_pid) {
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return ::OS::get_singleton()->kill(p_pid);
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}
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bool OS::is_process_running(int p_pid) const {
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return ::OS::get_singleton()->is_process_running(p_pid);
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}
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int OS::get_process_id() const {
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return ::OS::get_singleton()->get_process_id();
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}
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@ -571,6 +575,7 @@ void OS::_bind_methods() {
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ClassDB::bind_method(D_METHOD("create_instance", "arguments"), &OS::create_instance);
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ClassDB::bind_method(D_METHOD("kill", "pid"), &OS::kill);
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ClassDB::bind_method(D_METHOD("shell_open", "uri"), &OS::shell_open);
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ClassDB::bind_method(D_METHOD("is_process_running", "pid"), &OS::is_process_running);
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ClassDB::bind_method(D_METHOD("get_process_id"), &OS::get_process_id);
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ClassDB::bind_method(D_METHOD("get_environment", "variable"), &OS::get_environment);
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@ -173,6 +173,7 @@ public:
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Error kill(int p_pid);
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Error shell_open(String p_uri);
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bool is_process_running(int p_pid) const;
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int get_process_id() const;
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bool has_environment(const String &p_var) const;
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@ -152,6 +152,7 @@ public:
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virtual Error create_instance(const List<String> &p_arguments, ProcessID *r_child_id = nullptr) { return create_process(get_executable_path(), p_arguments, r_child_id); };
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virtual Error kill(const ProcessID &p_pid) = 0;
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virtual int get_process_id() const;
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virtual bool is_process_running(const ProcessID &p_pid) const = 0;
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virtual void vibrate_handheld(int p_duration_ms = 500);
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virtual Error shell_open(String p_uri);
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@ -434,6 +434,15 @@
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Returns [code]true[/code] if the input keycode corresponds to a Unicode character.
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</description>
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</method>
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<method name="is_process_running" qualifiers="const">
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<return type="bool" />
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<argument index="0" name="pid" type="int" />
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<description>
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Returns [code]true[/code] if the child process ID ([code]pid[/code]) is still running or [code]false[/code] if it has terminated.
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Must be a valid ID generated from [method create_process].
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[b]Note:[/b] This method is implemented on Android, iOS, Linux, macOS and Windows.
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</description>
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</method>
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<method name="is_stdout_verbose" qualifiers="const">
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<return type="bool" />
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<description>
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@ -412,6 +412,15 @@ int OS_Unix::get_process_id() const {
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return getpid();
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}
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bool OS_Unix::is_process_running(const ProcessID &p_pid) const {
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int status = 0;
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if (waitpid(p_pid, &status, WNOHANG) != 0) {
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return false;
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}
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return true;
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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()) != nullptr;
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}
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@ -76,6 +76,7 @@ public:
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virtual Error create_process(const String &p_path, const List<String> &p_arguments, ProcessID *r_child_id = nullptr, bool p_open_console = false) override;
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virtual Error kill(const ProcessID &p_pid) override;
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virtual int get_process_id() const override;
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virtual bool is_process_running(const ProcessID &p_pid) const override;
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virtual bool has_environment(const String &p_var) const override;
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virtual String get_environment(const String &p_var) const override;
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@ -131,6 +131,10 @@ int OS_JavaScript::get_process_id() const {
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ERR_FAIL_V_MSG(0, "OS::get_process_id() is not available on the HTML5 platform.");
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}
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bool OS_JavaScript::is_process_running(const ProcessID &p_pid) const {
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return false;
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}
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int OS_JavaScript::get_processor_count() const {
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return godot_js_os_hw_concurrency_get();
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}
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@ -79,6 +79,7 @@ public:
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Error create_process(const String &p_path, const List<String> &p_arguments, ProcessID *r_child_id = nullptr, bool p_open_console = false) override;
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Error kill(const ProcessID &p_pid) override;
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int get_process_id() const override;
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bool is_process_running(const ProcessID &p_pid) const override;
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int get_processor_count() const override;
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int get_default_thread_pool_size() const override { return 1; }
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@ -647,6 +647,10 @@ Error OS_UWP::kill(const ProcessID &p_pid) {
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return FAILED;
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}
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bool OS_UWP::is_process_running(const ProcessID &p_pid) const {
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return false;
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}
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Error OS_UWP::set_cwd(const String &p_cwd) {
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return FAILED;
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}
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@ -198,6 +198,7 @@ public:
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virtual Error execute(const String &p_path, const List<String> &p_arguments, String *r_pipe = nullptr, int *r_exitcode = nullptr, bool read_stderr = false, Mutex *p_pipe_mutex = nullptr, bool p_open_console = false);
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virtual Error create_process(const String &p_path, const List<String> &p_arguments, ProcessID *r_child_id = nullptr, bool p_open_console = false);
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virtual Error kill(const ProcessID &p_pid);
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virtual bool is_process_running(const ProcessID &p_pid) const;
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virtual bool has_environment(const String &p_var) const;
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virtual String get_environment(const String &p_var) const;
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@ -517,6 +517,25 @@ int OS_Windows::get_process_id() const {
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return _getpid();
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}
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bool OS_Windows::is_process_running(const ProcessID &p_pid) const {
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if (!process_map->has(p_pid)) {
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return false;
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}
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const PROCESS_INFORMATION &pi = (*process_map)[p_pid].pi;
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DWORD dw_exit_code = 0;
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if (!GetExitCodeProcess(pi.hProcess, &dw_exit_code)) {
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return false;
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}
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if (dw_exit_code != STILL_ACTIVE) {
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return false;
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}
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return true;
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}
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Error OS_Windows::set_cwd(const String &p_cwd) {
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if (_wchdir((LPCWSTR)(p_cwd.utf16().get_data())) != 0) {
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return ERR_CANT_OPEN;
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@ -132,6 +132,7 @@ public:
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virtual Error create_process(const String &p_path, const List<String> &p_arguments, ProcessID *r_child_id = nullptr, bool p_open_console = false) override;
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virtual Error kill(const ProcessID &p_pid) override;
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virtual int get_process_id() const override;
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virtual bool is_process_running(const ProcessID &p_pid) const override;
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virtual bool has_environment(const String &p_var) const override;
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virtual String get_environment(const String &p_var) const override;
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