v0.0.3

Added

• smfile_open / smfile_close — open and close a smart file in read/write mode
• smfile_cleanup — release all on-disk resources associated with a file path
• smfile_new_context — create an independent transaction context from an existing smart file
• smfile_strerror / smfile_perror — error introspection in the style of the C standard library

Simple API — treats the file as a flat byte sequence:

• smfile_size — query total file size in bytes
• smfile_read — read elements from a byte offset
• smfile_write — overwrite elements at a byte offset (atomic)
• smfile_insert — insert bytes into the middle of a file
• smfile_remove — remove elements and close the gap (atomic, with optional capture)
• smfile_delete — delete a named variable

Power API — named variables and strided element access:

• smfile_psize — query the size of a named variable
• smfile_pread — strided read from a named variable
• smfile_pwrite — strided write into a named variable
• smfile_pinsert — insert into a named variable at a byte offset
• smfile_premove — strided remove from a named variable (atomic, with optional capture)

Transactions — WAL-backed, two-phase locking:

• smfile_begin — begin an explicit transaction
• smfile_commit — commit all operations as a single atomic unit
• smfile_rollback — undo all mutations since the last smfile_begin

Notes

• All simple and power operations are individually atomic by default
• Explicit transactions promote a sequence of operations to a single atomic unit
• Negative byte offsets are interpreted relative to end of file
• Explicit-width types used throughout for deterministic on-disk layout

Full Changelog: v0.0.2...v0.0.3