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Also... System calls use traps to get from user- to kernel-
mode to perform OS services. That is necessary to get from
user- to kernel-mode. But then another trap is used to get
from kernel- back to user-mode. It seems like this second
trap should be unnecessary. We should be able to do the
same kind of logic to do this.
Status: Open
Priority: Low-ish, but a good opportunity for performance improvement.
Title: UNVERIFIED THTTPD FEATURES
Gregory Nutt
committed
Description: Not all THTTPD features/options have been verified. In
particular, there is no test case of a CGI program receiving
POST input. Only the configuration of apps/examples/thttpd
has been tested.
Status: Open
Priority: Medium
Description: The NSH network management logic has general applicability
but is currently useful only because it is embedded in the NSH
module. It should be moved to apps/system or, better,
apps/netutils.
Status: Open
Priority: Low
o NuttShell (NSH) (apps/nshlib)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Title: IFCONFIG AND MULTIPLE NETWORK INTERFACES
Description: The ifconfig command will not behave correctly if an interface
is provided and there are multiple interfaces. It should only
show status for the single interface on the command line; it will
still show status for all interfaces.
Status: Open
Priority: Low
o System libraries apps/system (apps/system)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Title: READLINE IMPLEMENTATION
Description: readline implementation does not use C-buffered I/O, but rather
talks to serial driver directly via read(). It includes VT-100
specific editing commands. A more generic readline() should be
implemented using termios' tcsetattr() to put the serial driver
into a "raw" mode.
Status: Open
Priority: Low (unless you are using mixed C-buffered I/O with readline and
fgetc, for example).
o Pascal Add-On (pcode/)
^^^^^^^^^^^^^^^^^^^^^^
Title: P-CODES IN MEMORY UNTESTED
Description: Need APIs to verify execution of P-Code from memory buffer.
Status: Open
Priority: Low
Title: SMALLER LOADER AND OBJECT FORMAT
Description: Loader and object format may be too large for some small
memory systems. Consider ways to reduce memory footprint.
Status: Open
Priority: Medium
Title: PDBG
Description: Move the the pascal p-code debugger into the NuttX apps/ tree
where it can be used from the NSH command line.
Status: Open
Priority: Low
o Other Applications & Tests (apps/examples/)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Title: EXAMPLES/PIPE ON CYGWIN
Description: The redirection test (part of examples/pipe) terminates
incorrectly on the Cywgin-based simulation platform (but works
fine on the Linux-based simulation platform).
Status: Open
Priority: Low
Title: EXAMPLES/SENDMAIL UNTESTED
Description: examples/sendmail is untested on the target (it has been tested
on the host, but not on the target).
Title: EXAMPLES/NX FONT CACHING
Description: The font caching logic in examples/nx is incomplete. Fonts are
added to the cache, but never removed. When the cache is full
it stops rendering. This is not a problem for the examples/nx
code because it uses so few fonts, but if the logic were
leveraged for more general purposes, it would be a problem.
Update: see examples/nxtext for some improved font cache handling.
Update: The NXTERM font cache has been generalized and is now
offered as the standard, common font cache for all applications.
both the nx and nxtext examples should be modified to use this
common font cache. See interfaces defined in nxfonts.h.
Status: Open
Priority: Low. This is not really a problem because examples/nx works
fine with its bogus font caching.
Title: EXAMPLES/NXTEXT ARTIFACTS
Description: examples/nxtext. Artifacts when the pop-up window is opened.
There are some artifacts that appear in the upper left hand
corner. These seems to be related to window creation. At
tiny artifact would not be surprising (the initial window
should like at (0,0) and be of size (1,1)), but sometimes
the artifact is larger.
Status: Open
Priority: Medium.