Emscripten: Experimental -sPROXY_POSIX_SOCKETS support

...see
<https://emscripten.org/docs/porting/networking.html#full-posix-sockets-over-websocket-proxy-server>.

This requires
<https://github.com/stbergmann/emscripten/commit/4aff1f28b88480791236adcc6d5cb2d919ad4bf3>
"-sPROXY_POSIX_SOCKETS: Add websocket_proxy_poll".  When configured with
--disable-socketpair (which appears to have no negative consequences),
external/curl appears to only call poll(2) with socket-related file descriptors,
so we can use websocket_proxy_poll instead.

The URL on which the websocket_to_posix_proxy process listens must be specified
as Module.uno_websocket_to_posix_socket_url.

Change-Id: I4ad23098b5bbc0646fa50859c0aeb9870d1cc92a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/172243
Reviewed-by: Stephan Bergmann <stephan.bergmann@allotropia.de>
Tested-by: Jenkins

0 files changed, 0 insertions, 0 deletions