Move server-only stuff into their own files and make building
that depend on not having --without-server on the configure
Make fragments in other places conditional as well
Remove client-related members from struct libwebscket when
building LWS_NO_CLIENT
Apps:
normal: build test server, client, fraggle, ping
--without-client: build test server
--without-server: build test client, ping
Signed-off-by: Andy Green <andy.green@linaro.org>
Unfortunately this code is beginning to rot due to lack of demand to
provide it and it being disabled by default.
If demand appears we can revert this and resume work on it, otherwise
let's bite the bullet for the moment.
Signed-off-by: Andy Green <andy.green@linaro.org>
This rips out the connection hashtable implementation along with
MAX_CLIENTS and replaces it with a dynamically allocated fds array
and lookup table along the same lines as the new extpoll implementation
from Edwin van den Oetelaar.
It detects the max number of file descriptors possible at context init
time and allocates accordingly; this can be externally controlled by
ulimit and the server run as a specific user to facilitate targeting
specific ulimit rules at it.
Many operations that translated between socket descriptors and struct
websocket or pollfd objects have had iteration removed by this patch
and under load will be a lot faster.
Signed-off-by: Andy Green <andy.green@linaro.org>
This leverages the refactor patches to introduce the ability to
disable building any client side code in the library or the client
side test apps.
This will be a considerable size saving for embedded server-only
case.
Signed-off-by: Andy Green <andy.green@linaro.org>
Default remains at SOMAXCONN, you can force it at configure time
along these lines
./configure CFLAGS="-DLWS_SOMAXCONN=16384"
Signed-off-by: Andy Green <andy.green@linaro.org>
From an idea by Jack Mitchell <ml@communistcode.co.uk>
Use --without-testapps at configure time to suppress building them
Signed-off-by: Andy Green <andy.green@linaro.org>
Some of the advice in README.rst became deprecated with recent patches,
the (good) advice about http connection close is better demonstrated
in the code and API docs, and the remainder can go in the main README,
which will have to be refactored itself at some point.
Signed-off-by: Andy Green <andy.green@linaro.org>
This patch allows control of the main compiletime constants in libwebsockets
from the configure commandline.
README is updated with documentation on what's available, how to set them
and the defaults.
The constants are logged with "info" severity (not visible by default) at
context create time.
The zlib constant previously exposed like this is moved to private-libwebsockets.h
so it can be printed along with the rest.
Signed-off-by: Andy Green <andy.green@linaro.org>
This reverts the removal of the deflate_frame code that was crashing after porting
David Galeano's code: he pointed out there's a typo in the merged version causing
the crash which is fixed here.
However the fixed code has a problem, there's no limit (other than int size) to the
amount of memory it will try to malloc, which can allow a DoS of the server by the
client sending malicious compression states that inflate to a large amount. I have
added checking for OOM already that will avert the segfault that would otherwise follow
but the server will be unusuable if malicious connections were made repeatedly each
forcing it to allocate large buffers and cause small allocations on other connections
to fail.
The patch changes the code to use realloc(), and introduces a configurable limit
on the amount of memory one connection may need for zlib before the server hangs
up the connection. It defaults to 64KBytes but can be set from ./configure as
described now in the README.
Signed-off-by: Andy Green <andy.green@linaro.org>
David found that uclibc did not provide this slightly esoteric api
and provided one from BSD that can be built by the library internally.
AG: Made contingent on configure option --enable-builtin-getifaddrs
Signed-off-by: David <cymerio@gmail.com>
Signed-off-by: Andy Green <andy.green@linaro.org>
This patch gets deflate-stream working with x-google-mux.
It adds a clean veto system where are extension can veto the proposal
of any extension when opening a new connection. x-google-mux uses that
in its callback to defeat any use of deflate-stream on mux children.
However deflate stream is allowed on the parent connection and works
transparently now alongside x-google-mux.
Signed-off-by: Andy Green <andy@warmcat.com>
This is initial x-google-mux support. It's disabled by default
since it's very pre-alpha.
1) To enable it, reconfigure with --enable-x-google-mux
2) It conflicts with deflate-stream, use the -u switch on
the test client to disable deflate-stream
3) It deviates from the google standard by sending full
headers in the addchannel subcommand rather than just
changed ones from original connect
4) Quota is not implemented yet
5) Close of subchannel is not really implemented yet
6) Google opcode 0xf is changed to 0x7 to account for
v7 protocol changes to opcode layout
However despite those caveats, in fact it can run the
test client reliably over one socket (both dumb-increment
and lws-mirror-protocol), you can open a browser on the
same test server too and see the circles, etc.
Signed-off-by: Andy Green <andy@warmcat.com>
Christopher Baker sent in a working OSX configure string,
add it to the README
Reported-by: Christopher Baker <me@christopherbaker.net>
Signed-off-by: Andy Green <andy@warmcat.com>
