diff options
Diffstat (limited to 'doc/classes/OS.xml')
| -rw-r--r-- | doc/classes/OS.xml | 110 |
1 files changed, 59 insertions, 51 deletions
diff --git a/doc/classes/OS.xml b/doc/classes/OS.xml index ec47d455a9..548147beab 100644 --- a/doc/classes/OS.xml +++ b/doc/classes/OS.xml @@ -25,13 +25,36 @@ [b]Note:[/b] This method is implemented on Linux, macOS and Windows. </description> </method> + <method name="create_process"> + <return type="int"> + </return> + <argument index="0" name="path" type="String"> + </argument> + <argument index="1" name="arguments" type="PackedStringArray"> + </argument> + <description> + Creates a new process that runs independently of Godot. It will not terminate if Godot terminates. The file specified in [code]path[/code] must exist and be executable. Platform path resolution will be used. The [code]arguments[/code] are used in the given order and separated by a space. + If the process creation succeeds, the method will return the new process ID, which you can use to monitor the process (and potentially terminate it with [method kill]). If the process creation fails, the method will return [code]-1[/code]. + For example, running another instance of the project: + [codeblocks] + [gdscript] + var pid = OS.create_process(OS.get_executable_path(), []) + [/gdscript] + [csharp] + var pid = OS.CreateProcess(OS.GetExecutablePath(), new string[] {}); + [/csharp] + [/codeblocks] + See [method execute] if you wish to run an external command and retrieve the results. + [b]Note:[/b] This method is implemented on Android, iOS, Linux, macOS and Windows. + </description> + </method> <method name="delay_msec" qualifiers="const"> <return type="void"> </return> <argument index="0" name="msec" type="int"> </argument> <description> - Delay execution of the current thread by [code]msec[/code] milliseconds. + Delay execution of the current thread by [code]msec[/code] milliseconds. [code]usec[/code] must be greater than or equal to [code]0[/code]. Otherwise, [method delay_msec] will do nothing and will print an error message. </description> </method> <method name="delay_usec" qualifiers="const"> @@ -40,7 +63,7 @@ <argument index="0" name="usec" type="int"> </argument> <description> - Delay execution of the current thread by [code]usec[/code] microseconds. + Delay execution of the current thread by [code]usec[/code] microseconds. [code]usec[/code] must be greater than or equal to [code]0[/code]. Otherwise, [method delay_usec] will do nothing and will print an error message. </description> </method> <method name="dump_memory_to_file"> @@ -71,48 +94,34 @@ </argument> <argument index="1" name="arguments" type="PackedStringArray"> </argument> - <argument index="2" name="blocking" type="bool" default="true"> - </argument> - <argument index="3" name="output" type="Array" default="[ ]"> + <argument index="2" name="output" type="Array" default="[ ]"> </argument> - <argument index="4" name="read_stderr" type="bool" default="false"> + <argument index="3" name="read_stderr" type="bool" default="false"> </argument> <description> - Execute the file at the given path with the arguments passed as an array of strings. Platform path resolution will take place. The resolved file must exist and be executable. - The arguments are used in the given order and separated by a space, so [code]OS.execute("ping", ["-w", "3", "godotengine.org"], false)[/code] will resolve to [code]ping -w 3 godotengine.org[/code] in the system's shell. - This method has slightly different behavior based on whether the [code]blocking[/code] mode is enabled. - If [code]blocking[/code] is [code]true[/code], the Godot thread will pause its execution while waiting for the process to terminate. The shell output of the process will be written to the [code]output[/code] array as a single string. When the process terminates, the Godot thread will resume execution. - If [code]blocking[/code] is [code]false[/code], the Godot thread will continue while the new process runs. It is not possible to retrieve the shell output in non-blocking mode, so [code]output[/code] will be empty. - The return value also depends on the blocking mode. When blocking, the method will return an exit code of the process. When non-blocking, the method returns a process ID, which you can use to monitor the process (and potentially terminate it with [method kill]). If the process forking (non-blocking) or opening (blocking) fails, the method will return [code]-1[/code] or another exit code. - Example of blocking mode and retrieving the shell output: + Executes a command. The file specified in [code]path[/code] must exist and be executable. Platform path resolution will be used. The [code]arguments[/code] are used in the given order and separated by a space. If an [code]output[/code] [Array] is provided, the complete shell output of the process will be appended as a single [String] element in [code]output[/code]. If [code]read_stderr[/code] is [code]true[/code], the output to the standard error stream will be included too. + If the command is successfully executed, the method will return the exit code of the command, or [code]-1[/code] if it fails. + [b]Note:[/b] The Godot thread will pause its execution until the executed command terminates. Use [Thread] to create a separate thread that will not pause the Godot thread, or use [method create_process] to create a completely independent process. + For example, to retrieve a list of the working directory's contents: [codeblocks] [gdscript] var output = [] - var exit_code = OS.execute("ls", ["-l", "/tmp"], true, output) + var exit_code = OS.execute("ls", ["-l", "/tmp"], output) [/gdscript] [csharp] var output = new Godot.Collections.Array(); - int exitCode = OS.Execute("ls", new string[] {"-l", "/tmp"}, true, output); - [/csharp] - [/codeblocks] - Example of non-blocking mode, running another instance of the project and storing its process ID: - [codeblocks] - [gdscript] - var pid = OS.execute(OS.get_executable_path(), [], false) - [/gdscript] - [csharp] - var pid = OS.Execute(OS.GetExecutablePath(), new string[] {}, false); + int exitCode = OS.Execute("ls", new string[] {"-l", "/tmp"}, output); [/csharp] [/codeblocks] - If you wish to access a shell built-in or perform a composite command, a platform-specific shell can be invoked. For example: + To execute a composite command, a platform-specific shell can be invoked. For example: [codeblocks] [gdscript] var output = [] - OS.execute("CMD.exe", ["/C", "cd %TEMP% && dir"], true, output) + OS.execute("CMD.exe", ["/C", "cd %TEMP% && dir"], output) [/gdscript] [csharp] var output = new Godot.Collections.Array(); - OS.Execute("CMD.exe", new string[] {"/C", "cd %TEMP% && dir"}, true, output); + OS.Execute("CMD.exe", new string[] {"/C", "cd %TEMP% && dir"}, output); [/csharp] [/codeblocks] [b]Note:[/b] This method is implemented on Android, iOS, Linux, macOS and Windows. @@ -198,10 +207,11 @@ <method name="get_environment" qualifiers="const"> <return type="String"> </return> - <argument index="0" name="environment" type="String"> + <argument index="0" name="variable" type="String"> </argument> <description> - Returns an environment variable. + Returns the value of an environment variable. Returns an empty string if the environment variable doesn't exist. + [b]Note:[/b] Double-check the casing of [code]variable[/code]. Environment variable names are case-sensitive on all platforms except Windows. </description> </method> <method name="get_executable_path" qualifiers="const"> @@ -295,22 +305,12 @@ [b]Note:[/b] This method is implemented on Android, Linux, macOS and Windows. </description> </method> - <method name="get_tablet_driver_count" qualifiers="const"> + <method name="get_thread_caller_id" qualifiers="const"> <return type="int"> </return> <description> - Returns the total number of available tablet drivers. - [b]Note:[/b] This method is implemented on Windows. - </description> - </method> - <method name="get_tablet_driver_name" qualifiers="const"> - <return type="String"> - </return> - <argument index="0" name="idx" type="int"> - </argument> - <description> - Returns the tablet driver name for the given index. - [b]Note:[/b] This method is implemented on Windows. + Returns the ID of the current thread. This can be used in logs to ease debugging of multi-threaded applications. + [b]Note:[/b] Thread IDs are not deterministic and may be reused across application restarts. </description> </method> <method name="get_ticks_msec" qualifiers="const"> @@ -356,6 +356,7 @@ </return> <description> Returns the current UNIX epoch timestamp. + [b]Important:[/b] This is the system clock that the user can manully set. [b]Never use[/b] this method for precise time calculation since its results are also subject to automatic adjustments by the operating system. [b]Always use[/b] [method get_ticks_usec] or [method get_ticks_msec] for precise time calculation instead, since they are guaranteed to be monotonic (i.e. never decrease). </description> </method> <method name="get_unix_time_from_datetime" qualifiers="const"> @@ -366,6 +367,7 @@ <description> Gets an epoch time value from a dictionary of time values. [code]datetime[/code] must be populated with the following keys: [code]year[/code], [code]month[/code], [code]day[/code], [code]hour[/code], [code]minute[/code], [code]second[/code]. + If the dictionary is empty [code]0[/code] is returned. You can pass the output from [method get_datetime_from_unix_time] directly into this function. Daylight Savings Time ([code]dst[/code]), if present, is ignored. </description> </method> @@ -383,10 +385,11 @@ <method name="has_environment" qualifiers="const"> <return type="bool"> </return> - <argument index="0" name="environment" type="String"> + <argument index="0" name="variable" type="String"> </argument> <description> - Returns [code]true[/code] if an environment variable exists. + Returns [code]true[/code] if the environment variable with the name [code]variable[/code] exists. + [b]Note:[/b] Double-check the casing of [code]variable[/code]. Environment variable names are case-sensitive on all platforms except Windows. </description> </method> <method name="has_feature" qualifiers="const"> @@ -501,6 +504,18 @@ [b]Note:[/b] This method is implemented on Android. </description> </method> + <method name="set_environment" qualifiers="const"> + <return type="bool"> + </return> + <argument index="0" name="variable" type="String"> + </argument> + <argument index="1" name="value" type="String"> + </argument> + <description> + Sets the value of the environment variable [code]variable[/code] to [code]value[/code]. The environment variable will be set for the Godot process and any process executed with [method execute] after running [method set_environment]. The environment variable will [i]not[/i] persist to processes run after the Godot process was terminated. + [b]Note:[/b] Double-check the casing of [code]variable[/code]. Environment variable names are case-sensitive on all platforms except Windows. + </description> + </method> <method name="set_thread_name"> <return type="int" enum="Error"> </return> @@ -535,19 +550,12 @@ </method> </methods> <members> - <member name="exit_code" type="int" setter="set_exit_code" getter="get_exit_code" default="0"> - The exit code passed to the OS when the main loop exits. By convention, an exit code of [code]0[/code] indicates success whereas a non-zero exit code indicates an error. For portability reasons, the exit code should be set between 0 and 125 (inclusive). - [b]Note:[/b] This value will be ignored if using [method SceneTree.quit] with an [code]exit_code[/code] argument passed. - </member> <member name="low_processor_usage_mode" type="bool" setter="set_low_processor_usage_mode" getter="is_in_low_processor_usage_mode" default="false"> If [code]true[/code], the engine optimizes for low processor usage by only refreshing the screen if needed. Can improve battery consumption on mobile. </member> <member name="low_processor_usage_mode_sleep_usec" type="int" setter="set_low_processor_usage_mode_sleep_usec" getter="get_low_processor_usage_mode_sleep_usec" default="6900"> The amount of sleeping between frames when the low-processor usage mode is enabled (in microseconds). Higher values will result in lower CPU usage. </member> - <member name="tablet_driver" type="String" setter="set_current_tablet_driver" getter="get_current_tablet_driver" default=""""> - The current tablet driver in use. - </member> </members> <constants> <constant name="VIDEO_DRIVER_GLES2" value="0" enum="VideoDriver"> |