To avoid races between the lwIP callbacks (lwIP RTOS task) and the Lua
handlers (LVM RTOS task), the data flow and ownership has been simplified
and cleaned up.
lwIP callbacks now have no visibility of the userdata struct. They are
limited to creating small event objects and task_post()ing them over
to the LVM "thread", passing ownership in doing so. The shared identifier
then becomes the struct netconn*.
On the LVM side, we keep a linked list of active userdata objects. This
allows us to retrieve the correct userdata when we get an event with
a netconn pointer. Because this list is only ever used within the LVM
task, no locking is necessary.
The old approach of stashing a userdata pointer into the 'socket' field
on the netconn has been removed entirely, as this was both not
thread/RTOS-task safe, and also interfered with the IDFs internal use
of the socket field (even when using only the netconn layer). As an
added benefit, this removed the need for all the SYS_ARCH_PROTECT()
locking stuff.
The need to track receive events before the corresponding userdata object
has been established has been removed by virtue of not reordering the
"accept" and the "recv" events any more (previously accepts were posted
with medium priority, while the receives where high priority, leading
to the observed reordering and associated headaches).
The workaround for IDF issue 784 has been removed as it is now not needed
and is in fact directly harmful as it results in a double-free. Yay for
getting rid of old workarounds!
DNS resolution code paths were merged for the two instances of "socket"
initiated resolves (connect/dns functions).
Also fixed an instance of using a stack variable for receiving the resolved
IP address, with said variable going out of scope before the DNS resolution
necessarily completed (hello, memory corruption!).
Where possible, moved to use the Lua allocator rather than plain malloc.
Finally, the NodeMCU task posting mechanism got a polish and an adjustment.
Given all the Bad(tm) that tends to happen if something fails task posting,
I went through a couple of iterations on how to avoid that. Alas, the
preferred solution of blocking non-LVM RTOS tasks until a slot is free
turned out to not be viable, as this easily resulted in deadlocks with the
lwIP stack. After much deliberation I settled on increasing the number of
available queue slots for the task_post() mechanism, but in the interest
of user control also now made it user configurable via Kconfig.
The netbuf_data() function only returns data from the first pbuf in the
chain. We need to use netbuf_first() and netbuf_next() to walk the
pbuf chain and act on each in turn.
* Leaner, meaner crypto module; now with HMAC
Based on my testing, mbedtls pulls in all its algorithm regardless of
whether the NodeMCU crypto module was using them or not. As such, the
space savings from omitting algorithms were only in the tens of bytes.
By switching to using the mbedtls generic message digest interface, the
crypto module itself could be shrunk in size and complexity. Despite
adding support for HMAC on all algorithms (plus including RIPEMD160),
this version is 330 bytes smaller.
* Updated crypto module docs.
* Removed superfluous brackets in crypto docs.
Copy-paste considered harmful... >.>
* ESP32: Added pulsecnt module
The pulsecnt module let's you use the ESP32's pulse counter capabilities from Lua.
* ESP32: Pulsecnt module. Better/faster callback.
Reduced the amount of callback variables to speed things up and shift more logic to Lua than in the C code.
* ESP32: Completed docs for pulsecnt
* ESP32: Final release of pulsecnt
* ESP32: Production release of pulsecnt
* ESP32: Release (tweaked docs)
* ESP32: Pulse Counter Release. Cleaned up .gitignore
* ESP32: Pulse counter release (changed ch1 gpio to int to match ch0)
* ESP32: Add option to set IP/dns config
This commit adds support for setting:
* Hostname
* Static IP / Dns server (Sta mode)
* Changing AP network ip config
* Setting DNS server IP for DHCP
* ESP32: Documentation for setting IP/dns/hostname config
* Documented new functions
* sethostname() now returns true if success
* ESP32: Add time modules
New time module for manipulating system time/ calendar and controlling SNTP server
* ESP32: Time module documentation & style fixes
* added documentation for time modules
* style fixes as pointed out by @devsaurus
* ESP32: Time module small fixes
* Couple small fixes
* Esp32: Add SJSON module
This adds SJSON module taken directly from master
* ESP32: Fixes for sjson lib
Fixed compilation not including config header, thus braking some of libs functionality
* ESP32: Upgraded SJSON to master
* Adding qrcodegen module for generating QR Codes
* Added LUA_MODULE_QRCODEGEN KConfig
* Changed qrcodegen.encodeText() to use an options table
Created common.h with new option table helper fns.
* Reworked http.c to use new common.h options table APIs
* esp32: Reinstate tmr.now() function using esp_timer_get_time()
Also added larger limit before wrapping if Lua's number type supports
it.
* Renamed tmr.now() to node.uptime()
Added second return value to indicate timer wrap
* #2521: Add object-based file API to dev-esp32 branch
Merged in from master@c708828bbe853764b9de58fb8113a70f5a24002d minus
some VFS changes and similar.
* Updated file docs from master
Omitting:
* file.mount()
* reference to rtctime.epoch2cal()
* file.stat()
As these are not available in dev-esp32 branch
Unsure about whether "directories are not supported" is still true
* Inital commit for supporting ledc driver
* Added documentation. More fade functions and better naming of constants
* Better field checking during setup. Updated documentation
* Reworked LEDC module to be used with an object model to decrease repetition of parameters
* can extension
* can extension: bit timing and filter
* can -> CAN
* post CAN data callback
* CAN docs
* CAN: fixed receive, filter, extended frame
* reorder fn in can.md, remove driver_can/Kconfig
* fixed a leak when can.stop()
- Switched hardcoded interrupts to new IDF interrupt allocation
framework.
- gpio module switched to the IDF's per-pin interrupt callback service.
- Improved NodeMCU linker script since it broke with the IDF upgrade.
- Various compatibility updates.
f4grx
Arnim Läuger
Johny Mattsson
Johny Mattsson
John Lauer
Skirmantas Lauzikas
Javier Peletier
Kevin Leung
tomsci
zelll
Ryan Hartlage
Andrew Gough
larsstenberg
Lars Stenberg
zelll