Please see "Memory Management" section and ArxContainer for detail.
In addtion for such boards, type aliases for following types are different from others. These macros have no effect for STL enabled boards. # define MSGPACK_MAX_MAP_SIZE 8 // msgpack objects size in one packet # define MSGPACK_MAX_ARRAY_SIZE 8 // max size of MsgPack::map_t # define MSGPACK_MAX_PACKET_BYTE_SIZE 128 // max size of MsgPack::arr_t MsgPack::object::ext holds binary data of Ext type. This object is just a dummy and do nothing. MsgPack::object::nil_t is used to pack and unpack Nil type. Type Aliases for Str / Bin / Array / Mapįor general C++ apps (not Arduino), str_t is defined as: There are some additional types are defined to express msgpack formats easily. for the detail of arx::xxx, see ArxContainer.for Map, only MsgPack::map_t ( arx::map) can be used.for Array, only T, MsgPack::arr_t ( arx::vector), and MsgPack::fix_arr_t ( arx::array) can be used.all types of NIL, Bool, Integer, Float, Str, Bin.for NO-STL Arduino, following types can be used.C-style array and pointers are supported only packing.unordered_xxx cannot be used in all Arduino.T (need to serialize(ptr, size) or pack(ptr, size)).unsigned char (need to serialize(ptr, size) or pack(ptr, size)).unsigned char* (need to serialize(ptr, size) or pack(ptr, size)).std::string or String(Arduino) ( MsgPack::str_t).You can also pack() or unpack() variable one by one. These are the lists of types which can be serialize and deserialize. load current config MsgPack::eeprom::load(config) To pack / unpack values as such collections in a simple way, please use these functions. In msgpack, there are two collection types: Array and Map.Ĭ++ containers will be converted to one of them but you can do that from individual parameters. MsgPack:: arr_t v Encode / Decode to Collections without Container MsgPack:: str_t s = "str " // std::string or String This section describes the platform-specific differences with the file system helpers.# include // input to msgpack int i = 123 Using StreamWriter streamWriter = new StreamWriter(outputStream) Using FileStream outputStream = System.IO.File.OpenWrite(targetFile) String targetFile = System.IO.Path.Combine(, targetFileName) Write the file content to the app data directory Transform file content to upper case text String content = await reader.ReadToEndAsync() Using Stream fileStream = await (sourceFile) The following example uses OpenAppPackageFileAsync to read a bundled file, alters it, and then writes it to the app data folder: public async Task ConvertFileToUpperCase(string sourceFile, string targetFileName) But you can read it first, then write it back to the cache directory or app data directory. Writing from a bundled file to the app data folder Using StreamReader reader = new StreamReader(fileStream) Using Stream fileStream = await (filePath) The following example demonstrates using a method to read the text contents of a file: public async Task ReadTextFile(string filePath) This method returns a read-only Stream representing the file contents. To open a file that is bundled into the app package, use the OpenAppPackageFileAsync method and pass the file name. These files are backed up with the operating system syncing framework. To get the app's top-level directory for any files that aren't user data files. Cache data can be used for any data that needs to persist longer than temporary data, but shouldn't be data that is required to operate the app, as the operating system may clear this storage. To get the application's directory to store cache data. The IFileSystem interface provides a cross-platform API for accessing these directory paths. Using file system helpersĮach operating system will have unique paths to the app cache and app data directories. Both the IFileSystem interface and FileSystem class are contained in the namespace. The default implementation of the IFileSystem interface is available through the FileSystem.Current property. This interface provides helper methods that access the app's cache and data directories, and helps access files in the app package. NET Multi-platform App UI (.NET MAUI) IFileSystem interface. This article describes how you can use the.
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