ported: 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. - mdavisprog
53fb0440d3
I did change it a bit.
This commit is contained in:
Relintai 2022-07-27 14:46:53 +02:00
parent 4e256ef76f
commit 850a84584d
9 changed files with 52 additions and 2 deletions

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@ -508,6 +508,10 @@ Error _OS::kill(int p_pid) {
return OS::get_singleton()->kill(p_pid);
}
bool _OS::is_process_running(int p_pid) const {
return OS::get_singleton()->is_process_running(p_pid);
}
int _OS::get_process_id() const {
return OS::get_singleton()->get_process_id();
};
@ -1343,6 +1347,7 @@ void _OS::_bind_methods() {
ClassDB::bind_method(D_METHOD("execute", "path", "arguments", "blocking", "output", "read_stderr", "open_console"), &_OS::execute, DEFVAL(true), DEFVAL(Array()), DEFVAL(false), DEFVAL(false));
ClassDB::bind_method(D_METHOD("kill", "pid"), &_OS::kill);
ClassDB::bind_method(D_METHOD("shell_open", "uri"), &_OS::shell_open);
ClassDB::bind_method(D_METHOD("is_process_running", "pid"), &_OS::is_process_running);
ClassDB::bind_method(D_METHOD("get_process_id"), &_OS::get_process_id);
ClassDB::bind_method(D_METHOD("get_environment", "variable"), &_OS::get_environment);

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@ -247,6 +247,7 @@ public:
Error kill(int p_pid);
Error shell_open(String p_uri);
bool is_process_running(int p_pid) const;
int get_process_id() const;
bool has_environment(const String &p_var) const;

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@ -295,7 +295,11 @@ String OS::get_executable_path() const {
int OS::get_process_id() const {
return -1;
};
}
bool OS::is_process_running(const ProcessID &p_pid) const {
return false;
}
void OS::vibrate_handheld(int p_duration_ms) {
WARN_PRINT("vibrate_handheld() only works with Android and iOS");

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@ -323,6 +323,7 @@ public:
virtual Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking = true, ProcessID *r_child_id = nullptr, String *r_pipe = nullptr, int *r_exitcode = nullptr, bool read_stderr = false, Mutex *p_pipe_mutex = nullptr, bool p_open_console = false) = 0;
virtual Error kill(const ProcessID &p_pid) = 0;
virtual int get_process_id() const;
virtual bool is_process_running(const ProcessID &p_pid) const;
virtual void vibrate_handheld(int p_duration_ms = 500);
virtual Error shell_open(String p_uri);

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@ -686,6 +686,15 @@
Returns [code]true[/code] if the [b]OK[/b] button should appear on the left and [b]Cancel[/b] on the right.
</description>
</method>
<method name="is_process_running" qualifiers="const">
<return type="bool" />
<argument index="0" name="pid" type="int" />
<description>
Returns [code]true[/code] if the child process ID ([code]pid[/code]) is still running or [code]false[/code] if it has terminated.
Must be a valid ID generated from [method execute].
[b]Note:[/b] This method is implemented on Android, iOS, Linux, macOS and Windows.
</description>
</method>
<method name="is_scancode_unicode" qualifiers="const">
<return type="bool" />
<argument index="0" name="code" type="int" />

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@ -361,7 +361,16 @@ Error OS_Unix::kill(const ProcessID &p_pid) {
int OS_Unix::get_process_id() const {
return getpid();
};
}
bool OS_Unix::is_process_running(const ProcessID &p_pid) const {
int status = 0;
if (waitpid(p_pid, &status, WNOHANG) != 0) {
return false;
}
return true;
}
bool OS_Unix::has_environment(const String &p_var) const {
return getenv(p_var.utf8().get_data()) != nullptr;

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@ -86,6 +86,7 @@ public:
virtual Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking = true, ProcessID *r_child_id = nullptr, String *r_pipe = nullptr, int *r_exitcode = nullptr, bool read_stderr = false, Mutex *p_pipe_mutex = nullptr, bool p_open_console = false);
virtual Error kill(const ProcessID &p_pid);
virtual int get_process_id() const;
virtual bool is_process_running(const ProcessID &p_pid) const;
virtual bool has_environment(const String &p_var) const;
virtual String get_environment(const String &p_var) const;

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@ -2890,6 +2890,25 @@ int OS_Windows::get_process_id() const {
return _getpid();
}
bool OS_Windows::is_process_running(const ProcessID &p_pid) const {
if (!process_map->has(p_pid)) {
return false;
}
const PROCESS_INFORMATION &pi = (*process_map)[p_pid].pi;
DWORD dw_exit_code = 0;
if (!GetExitCodeProcess(pi.hProcess, &dw_exit_code)) {
return false;
}
if (dw_exit_code != STILL_ACTIVE) {
return false;
}
return true;
}
Error OS_Windows::set_cwd(const String &p_cwd) {
if (_wchdir(p_cwd.c_str()) != 0)
return ERR_CANT_OPEN;

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@ -501,6 +501,7 @@ public:
virtual Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking = true, ProcessID *r_child_id = NULL, String *r_pipe = NULL, int *r_exitcode = NULL, bool read_stderr = false, Mutex *p_pipe_mutex = NULL, bool p_open_console = false);
virtual Error kill(const ProcessID &p_pid);
virtual int get_process_id() const;
virtual bool is_process_running(const ProcessID &p_pid) const;
virtual bool has_environment(const String &p_var) const;
virtual String get_environment(const String &p_var) const;