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13 commits

Author SHA1 Message Date
Andy Green
1a93e73402 fakewsi: replace with smaller substructure
Currently we always reserve a fakewsi per pt so events that don't have a related actual
wsi, like vhost-protocol-init or vhost cert init via protocol callback can make callbacks
that look reasonable to user protocol handler code expecting a valid wsi every time.

This patch splits out stuff that user callbacks often unconditionally expect to be in
a wsi, like context pointer, vhost pointer etc into a substructure, which is composed
into struct lws at the top of it.  Internal references (struct lws is opaque, so there
are only internal references) are all updated to go via the substructre, the compiler
should make that a NOP.

Helpers are added when fakewsi is used and referenced.

If not PLAT_FREERTOS, we continue to provide a full fakewsi in the pt as before,
although the helpers improve consistency by zeroing down the substructure.  There is
a huge amount of user code out there over the last 10 years that did not always have
the minimal examples to follow, some of it does some unexpected things.

If it is PLAT_FREERTOS, that is a newer thing in lws and users have the benefit of
being able to follow the minimal examples' approach.  For PLAT_FREERTOS we don't
reserve the fakewsi in the pt any more, saving around 800 bytes.  The helpers then
create a struct lws_a (the substructure) on the stack, zero it down (but it is only
like 4 pointers) and prepare it with whatever we know like the context.

Then we cast it to a struct lws * and use it in the user protocol handler call.
In this case, the remainder of the struct lws is undefined.  However the amount of
old protocol handlers that might touch things outside of the substructure in
PLAT_FREERTOS is very limited compared to legacy lws user code and the saving is
significant on constrained devices.

User handlers should not be touching everything in a wsi every time anyway, there
are several cases where there is no valid wsi to do the call with.  Dereference of
things outside the substructure should only happen when the callback reason shows
there is a valid wsi bound to the activity (as in all the minimal examples).
2020-07-20 06:28:52 +01:00
Andy Green
ac1229f2f7 minimal-http-client-multi: add POST
This adds support for POST in both h1 and h2 queues / stream binding.

The previous queueing tried to keep the "leader" wsi who made the
actual connection around and have it act on the transaction queue
tail if it had done its own thing.

This refactors it so instead, who is the "leader" moves down the
queue and the queued guys inherit the fd, SSL * and queue from the
old leader as they take over.

This lets them operate in their own wsi identity directly and gets
rid of all the "effective wsi" checks, which was applied incompletely
and getting out of hand considering the separate lws_mux checks for
h2 and other muxed protocols alongside it.

This change also allows one wsi at a time to own the transaction for
POST.  --post is added as an option to lws-minimal-http-client-multi
and 6 extra selftests with POST on h1/h2, pipelined or not and
staggered or not are added to the CI.
2020-02-21 17:32:41 +00:00
Andy Green
0bfd39135e cleaning 2020-01-05 22:17:58 +00:00
Andy Green
49f78ed0d7 client: improve redirect 2019-09-22 03:07:57 -07:00
Andy Green
0fa5563d18 freertos: rename esp32 plat to freertos 2019-08-26 09:58:57 +01:00
Andy Green
c36a1e8ed0 clean: internally use LWS_WITH_CLIENT and _SERVER
Remove some more things in LWS_WITH_SERVER=0 case
2019-08-26 09:58:57 +01:00
Andy Green
d7f0521aeb private.h: rename to contain dir
Having unique private header names is a requirement of a particular
platform build system it's desirable to work with
2019-08-15 10:49:52 +01:00
Andy Green
26319663f7 license: switch LGPLv2.1+SLE parts to MIT 2019-08-14 10:44:38 +01:00
Andy Green
498a4e2bd7 sul: all timed objects use a single pt sul list
wsi timeout, wsi hrtimer, sequencer timeout and vh-protocol timer
all now participate on a single sorted us list.

The whole idea of polling wakes is thrown out, poll waits ignore the
timeout field and always use infinite timeouts.

Introduce a public api that can schedule its own callback from the event
loop with us resolution (usually ms is all the platform can do).

Upgrade timeouts and sequencer timeouts to also be able to use us resolution.

Introduce a prepared fakewsi in the pt, so we don't have to allocate
one on the heap when we need it.

Directly handle vh-protocol timer if LWS_MAX_SMP == 1
2019-08-09 10:12:09 +01:00
Andy Green
45ec3ce369 lws_dll: upgrade all instances to lws_dll2
lws_dll2 removes the downsides of lws_dll and adds new features like a
running member count and explicit owner type... it's cleaner and more
robust (eg, nodes know their owner, so they can casually switch between
list owners and remove themselves without the code knowing the owner).

This deprecates lws_dll, but since it's public it allows it to continue
to be built for 4.0 release if you give cmake LWS_WITH_DEPRECATED_LWS_DLL.

All remaining internal users of lws_dll are migrated to lws_dll2.
2019-08-08 16:58:55 +01:00
Andy Green
462847bb6f lws_dll: remove lws_dll_lws and deprecate lws_dll_remove 2019-03-21 06:19:31 +08:00
Andy Green
c3f30bf1fa vhost info: add memory buffer cert support 2019-03-12 11:57:43 +08:00
Andy Green
84a57540ab LWS_WITH_NETWORK: cmake option for no network code 2019-01-13 07:54:57 +08:00