Crate shared_files

Disk-Based Single-Writer, Multiple-Reader In-Process File Sharing

Functionality for single-writer, multiple-reader file operations where multiple concurrent readers need to read from a file that is currently being written by the same process. The intended use case is the parallel processing of byte streams with minimum (process) memory requirements, e.g. in web services moving around large files.

Normally, reading a file while it is written results in the read stream ending prematurely as EOF; the purpose of this crate is to prevent exactly that.

The functionality is currently based on the async-tempfile crate. A generic implementation is planned for the use of arbitrary AsyncWrite / AsyncRead backing.

Structs

• SharedTemporaryFile
  A temporary file with shared read/write access.
• SharedTemporaryFileReader
  A reader for the shared temporary file.
• SharedTemporaryFileWriter
  A writer for the shared temporary file.

Enums

• CompleteWritingError
• FileSize
  The file size of the file to read.
• ReadError
• WriteError