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libwebsockets/lib
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Andy Green c327c7fdb7 vhost destruction: dont allow all wsi closures to kill vh we are already in process of destroying 
Saw this on travis selftests during context destroy

==18895== Invalid read of size 8
==18895==    at 0x415909: __lws_vhost_destroy2 (vhost.c:1063)
==18895==    by 0x40E65B: lws_context_destroy2 (context.c:929)
==18895==    by 0x40EBE5: lws_context_destroy (context.c:1128)
==18895==    by 0x40CC41: main (minimal-http-client-post.c:267)
==18895==  Address 0x6168688 is 728 bytes inside a block of size 792 free'd
==18895==    at 0x4C2BDEC: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==18895==    by 0x45B29E: _realloc (alloc.c:120)
==18895==    by 0x45B2D6: lws_realloc (alloc.c:130)
==18895==    by 0x415ED7: __lws_vhost_destroy2 (vhost.c:1204)
==18895==    by 0x419164: lws_vhost_unbind_wsi (wsi.c:82)
==18895==    by 0x41236B: __lws_free_wsi (close.c:154)
==18895==    by 0x4134CF: __lws_close_free_wsi_final (close.c:650)
==18895==    by 0x4133BA: __lws_close_free_wsi (close.c:610)
==18895==    by 0x413528: lws_close_free_wsi (close.c:660)
==18895==    by 0x4158C7: __lws_vhost_destroy2 (vhost.c:1053)
==18895==    by 0x40E65B: lws_context_destroy2 (context.c:929)
==18895==    by 0x40EBE5: lws_context_destroy (context.c:1128)

Removing the last wsi from the vhost we started to destroy finalized the
vhost destruction, which is aimed at libuv async close cleanup.  But if
we already entered __lws_vhost_destroy2, we will definitely destroy the vhost
ourselves at the end of that function already.  So defeat the wsi close
triggering it.
2019-12-22 18:17:45 +00:00
..
abstract format strings: ban %.*s as some platforms lack it 2019-11-04 13:49:14 +00:00
core lws_strexp: flexible string expansion helper 2019-12-16 18:16:01 +00:00
core-net vhost destruction: dont allow all wsi closures to kill vh we are already in process of destroying 2019-12-22 18:17:45 +00:00
event-libs unix: sul schedule rename internal api and call regardless of existing timeout 2019-11-01 07:07:33 +00:00
jose format strings: ban %.*s as some platforms lack it 2019-11-04 13:49:14 +00:00
misc license: fix up last mentions of lgpl outside of the source file license grant part 2019-12-02 11:19:30 +00:00
plat async dns: android: fix build error 2019-12-08 14:28:40 +00:00
roles spa: report 0-length FINAL_CONTENT 2019-12-22 18:17:45 +00:00
system adopt: pass wsi opaque so its set from the start 2019-12-09 14:48:54 +00:00
tls openssl: handle negotiation errors handling in client 2019-12-19 21:30:09 +00:00
README.md JOSE: refactor and prepare for JWE 2018-12-27 06:45:31 +08:00

README.md

Library sources layout

Code that goes in the libwebsockets library itself lives down ./lib

Path Sources
lib/core Core lws code related to generic fd and wsi servicing and management
lib/event-libs Code containing optional event-lib specific adaptations
lib/jose JOSE / JWS / JWK / JWE implementations
lib/misc Code for various mostly optional miscellaneous features
lib/plat Platform-specific adaptation code
lib/roles Code for specific optional wsi roles, eg, http/1, h2, ws, raw, etc
lib/tls Code supporting the various TLS libraries
libwebsockets.h Public API header for the whole of lws