Use a new directory iterator routine that tracks the offset within the
directory and handles transitions between sectors and clusters.
Redo the entry parsing code to make a single pass across the long file
names to handle crossing sector boundaries.
Move the directory handling code to dir.cpp
Handle walking the entire directory structure
Make file open be a much simpler function that just calls dir routines
TODO:
properly deal with FAT16 and FAT12 root directories
remove runtime mallocs in dir routines
Now seems to be capable of mounting a simple fat32 volume and
successfully reading a single file in the root directory that spans a
few 512 byte clusters.
If two mount points had similar names but one was longer, the path
matching logic would be triggered on the shorter name.
ie, /foo and /foo2 were illegal, since /foo2 path matching would match
against /foo. Tighten the logic a bit to match against the matching
element of the passed in path.
Note: heirarchial path matching still works, so /foo/bar/baz will match
against a mount point at /foo/bar. Debatable if heirarchial mount points
should work at the moment with this simple logic, but it's there for
now.
FDT encodes the range of available mmio and io ports that the PCI bus
can use to map bars. Return this information out of the FDT walker
helper routines to feed into the PCI bus manager in the future.
-Add C++ header guards around the public api.
-Fix a divide by zero bug in the test console routine.
-Add a new pktbuf api to assist with resetting a pktbuf back to default
values for reuse in an ethernet driver.
Import verbatim at fuchsia repository at commit 645dbffdfbf52f72491187a1c59af1a677e3dd00
which is the initial commit before it was more excessively converted to
fuchsia style C++.
Issue #310
This will allow in the future multiple instances of it to be active at
at a time. Place the current console in a new TLS slot per thread so
threads created as a side effect of console commands can properly run
commands.
Forgot to test at DEBUG=0. Both of these are basically cases where
the new DEBUG_ASSERT_COND should be used, since the default DEBUG_ASSERT
will now always emit code that gets cleaned up in the optimizer.
Pull some assert macro improvements back from zircon.
Added new variants that let you pass an arbitrary message.
Move most of the inner routine into a helper, makes for slightly
smaller codegen.
Consolidate into a single library. Also renames legacy new.h to
the more standard new.
Possible that some C++ code will need to get this added to their
MODULE_DEPS.
