options

group turbo_files_operation

struct FileEventListener

#include <file_event_listener.h>

FileEventListener is a listener for file events.

It is used to inspire by RocksDB’s EventListener. It is used in the FileMonitor class. or some condition that you want to trigger some action during the file operation.

struct FileOption

#include <file_option.h>

FileOption is used to configure the behavior of the File class.

it is used in the File open. open_tries: the number of times to try to open the file. open_interval: the interval between each open attempt. in milliseconds. create_dir_if_miss: if the directory does not exist, create it. prevent_child: if the directory does not exist, create it. kDefault: open_tries = 1 open_interval = 0(ms) create_dir_if_miss = false prevent_child = true The default behavior is to try to open the file once, and if it fails, it will not be opened again. If the directory does not exist, it will not be created. by default, user no need to set this option. the classes and functions in the turbo/files using FileOption::kDefault as default value. if you want to change the default behavior, you can set the FileOption::kDefault to your own Example:

SequenceWriteFile file; file.set_option(option); auto rs = file.open(“path/to/file”); @endnote the above code will try to open the file 3 times, and the interval between each open attempt is 1 second. if the directory does not exist, it will be created.

Note

{.cpp} FileOption option; option.open_tries = 3; option.open_interval = 1000; option.create_dir_if_miss = true; option.prevent_child = false;