diff options
| -rw-r--r-- | core/core_bind.cpp | 6 | ||||
| -rw-r--r-- | core/core_bind.h | 1 | ||||
| -rw-r--r-- | doc/classes/File.xml | 11 |
3 files changed, 17 insertions, 1 deletions
diff --git a/core/core_bind.cpp b/core/core_bind.cpp index f568ee754d..dd99c32fa8 100644 --- a/core/core_bind.cpp +++ b/core/core_bind.cpp @@ -1254,6 +1254,11 @@ Error _File::open(const String &p_path, ModeFlags p_mode_flags) { return err; } +void _File::flush() { + ERR_FAIL_COND_MSG(!f, "File must be opened before flushing."); + f->flush(); +} + void _File::close() { if (f) { memdelete(f); @@ -1547,6 +1552,7 @@ void _File::_bind_methods() { ClassDB::bind_method(D_METHOD("open_compressed", "path", "mode_flags", "compression_mode"), &_File::open_compressed, DEFVAL(0)); ClassDB::bind_method(D_METHOD("open", "path", "flags"), &_File::open); + ClassDB::bind_method(D_METHOD("flush"), &_File::flush); ClassDB::bind_method(D_METHOD("close"), &_File::close); ClassDB::bind_method(D_METHOD("get_path"), &_File::get_path); ClassDB::bind_method(D_METHOD("get_path_absolute"), &_File::get_path_absolute); diff --git a/core/core_bind.h b/core/core_bind.h index 44e620085a..7f945a9314 100644 --- a/core/core_bind.h +++ b/core/core_bind.h @@ -386,6 +386,7 @@ public: Error open_compressed(const String &p_path, ModeFlags p_mode_flags, CompressionMode p_compress_mode = COMPRESSION_FASTLZ); Error open(const String &p_path, ModeFlags p_mode_flags); // open a file. + void flush(); // Flush a file (write its buffer to disk). void close(); // Close a file. bool is_open() const; // True when file is open. diff --git a/doc/classes/File.xml b/doc/classes/File.xml index ff03f44789..e0781e807f 100644 --- a/doc/classes/File.xml +++ b/doc/classes/File.xml @@ -42,6 +42,7 @@ [/codeblocks] In the example above, the file will be saved in the user data folder as specified in the [url=https://docs.godotengine.org/en/latest/tutorials/io/data_paths.html]Data paths[/url] documentation. [b]Note:[/b] To access project resources once exported, it is recommended to use [ResourceLoader] instead of the [File] API, as some files are converted to engine-specific formats and their original source files might not be present in the exported PCK package. + [b]Note:[/b] Files are automatically closed only if the process exits "normally" (such as by clicking the window manager's close button or pressing [b]Alt + F4[/b]). If you stop the project execution by pressing [b]F8[/b] while the project is running, the file won't be closed as the game process will be killed. You can work around this by calling [method flush] at regular intervals. </description> <tutorials> <link title="File system">https://docs.godotengine.org/en/latest/getting_started/step_by_step/filesystem.html</link> @@ -52,7 +53,7 @@ <return type="void"> </return> <description> - Closes the currently opened file. + Closes the currently opened file and prevents subsequent read/write operations. Use [method flush] to persist the data to disk without closing the file. </description> </method> <method name="eof_reached" qualifiers="const"> @@ -73,6 +74,14 @@ [b]Note:[/b] Many resources types are imported (e.g. textures or sound files), and their source asset will not be included in the exported game, as only the imported version is used. See [method ResourceLoader.exists] for an alternative approach that takes resource remapping into account. </description> </method> + <method name="flush"> + <return type="void"> + </return> + <description> + Writes the file's buffer to disk. Flushing is automatically performed when the file is closed. This means you don't need to call [method flush] manually before closing a file using [method close]. Still, calling [method flush] can be used to ensure the data is safe even if the project crashes instead of being closed gracefully. + [b]Note:[/b] Only call [method flush] when you actually need it. Otherwise, it will decrease performance due to constant disk writes. + </description> + </method> <method name="get_16" qualifiers="const"> <return type="int"> </return> |