Refactor io utils, add *-address-rw tools

Namespace io_ stuff into mem_io_ to be less likely to collision with
anything else. Add io-stream utility for working with streams instead of
direct buffers. Add address-rw tools for simple memory read/write, where
regions aren't needed.

1 files changed, 27 insertions, 0 deletions

diff --git a/src/mem/io-stream.h b/src/mem/io-stream.h
new file mode 100644
index 0000000..ba3b620
--- /dev/null
+++ b/src/mem/io-stream.h
@@ -0,0 +1,27 @@
+#pragma once
+
+#include <stddef.h>
+
+struct mem_io;
+
+struct mem_io_istream {
+   size_t (*read)(const struct mem_io_istream *stream, void *ptr, const size_t size);
+   void *backing;
+};
+
+struct mem_io_istream
+mem_io_istream_from_file(FILE *file);
+
+size_t
+mem_io_write_from_stream(const struct mem_io *io, const struct mem_io_istream *stream, const size_t offset, const size_t size);
+
+struct mem_io_ostream {
+   size_t (*write)(const struct mem_io_ostream *stream, const void *ptr, const size_t size);
+   void *backing;
+};
+
+struct mem_io_ostream
+mem_io_ostream_from_file(FILE *file);
+
+size_t
+mem_io_read_to_stream(const struct mem_io *io, const struct mem_io_ostream *stream, const size_t offset, const size_t size);