Fixed a bunch of things to make OTA work on ESP32 with flash encryption:
writes to app aprtitions must be 32-byte aligned and mod 32 in size.
When merging filesystems during update, use spiffs_vfs_* functions so
that old fs is properly decrypted.
Refactored cs_dirent stuff: SPIFFS support moved to spiffs_vfs.c,
added dirent.h on ESP8266 and CC3200 which includes cs_dirent.h
Define DIR and dirent only if asked (ESP8266, CC3200, WIN32).
PUBLISHED_FROM=58b0d05cdc41b1a9e02d341e2a1cdcb012829232
cesanta/esp-idf is rebased onto espressif/esp-idf#aece3d6fc62fd91d3c5a87e0ab2ddb5ac51d8ff0
A few wifi changes and VFS support for directory-related functions.
PUBLISHED_FROM=7823db802945122aa1b5453da8abd8e380cbf2fa
Now it also tries to find the included file relatively to the "parent"
file. This is required for amalgamation of the frozen into mjs, since
`frozen.c` includes `frozen.h` instead of `frozen/frozen.h`.
PUBLISHED_FROM=8f670a1509a30cfdfb22e454b7851f4cf28fb98d
- LWIP UDP sockets are always writable and they are not reported as
such by select() (bug? featuyre?). TCP sockets are ok.
- Always deliver MG_EV_POLL, whether we have other fd_events or not.
Otherwise MG_EV_POLL would not be delivered at all to perma-writable
UDP sockets (as they are on LWIP).
- Ignore EAGAIN/EWOULDBLOCK errors while connecting, this happens
during SSL handshake.
PUBLISHED_FROM=3b1ee0d2b0c672512da5c9d6141aba1112983426
Factor out common part of SPIFFS libc interface support from the CC3200
port and reuse it for ESP32. Minor cleanups.
PUBLISHED_FROM=19ad4049372f83046abd8eba29cfc7c2cc405671
Namely, define it if only `MG_ENABLE_HTTP_STREAMING_MULTIPART` and
`MG_ENABLE_FILESYSTEM` are on
PUBLISHED_FROM=3094738a4b76ceb09a3c2374e8d9d914b71c3441
And use it for `FW_ARCHITECTURE`. This is needed because with
Microchip's xc32, `-DFOO=\"bar\"` results in `FOO` being `bar`, not
`"bar"`, so we have to stringify differently.
PUBLISHED_FROM=d0aeebb55ef9e0e92a7f750104cd6600e0d9c636
Assume handshake request was declined if either MG_F_CLOSE_IMMEDIATELY _or_ MG_F_SEND_AND_CLOSE is set.
PUBLISHED_FROM=60af32a3f8890e826205465b9add2f58b1d46e5f
Renegotiation is disabled, so we don't need them.
Reduces per-connection usage when idle by 3K.
PUBLISHED_FROM=24b2ac9557107f7da412dae6a42257c9b7c812d5
- Only allow one TCP segment in flight. Each segment is 1.5K and it
adds up. This may increase latency, but memory is precious on ESP.
At teh same time, optimize use of tcp_output: do not send a new segment
on every write, only call tcp_output at the end of connection
processing during poll.
- Build LWIP with DNS disabled. We have our won resolver, and LWIP's
allocates large static buffers (1K).
- mbedTLS: Deallocate peer's certificate at the end of SSL handshake,
reduces idle SSL connection footprint by ~1.5K.
Some tweaks to the heap log viewer (which made all the above possible).
PUBLISHED_FROM=6e84bba64eacb2d737561e09313918104921ea80
