b3131fdfdd
Establish a new distributed CMake architecture with CMake code related to a source directory moving to be in the subdir in its own CMakeLists.txt. In particular, there's now one in ./lib which calls through to ones further down the directory tree like ./lib/plat/xxx, ./lib/roles/xxx etc. This cuts the main CMakelists.txt from 98KB -> 33KB, about a 66% reduction, and it's much easier to maintain sub-CMakeLists.txt that are in the same directory as the sources they manage, and conceal all the details that that level. Child CMakelists.txt become responsible for: - include_directories() definition (this is not supported by CMake directly, it passes it back up via PARENT_SCOPE vars in helper macros) - Addition child CMakeLists.txt inclusion, for example toplevel -> role -> role subdir - Source file addition to the build - Dependent library path resolution... this is now a private thing in the child CMakeLists.txt, it just passes back any adaptations to include_directories() and the LIB_LIST without filling the parent namespace with the details |
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| CMakeLists.txt | ||
| minimal-raw-adopt-tcp.c | ||
| README.md | ||
lws minimal ws server raw adopt tcp
This example is only meaningful if you are integrating lws in another app which generates its own connected sockets. In some cases you may want lws to "adopt" the socket.
(If you simply want a connected client raw socket using lws alone, you can just use lws_client_connect_via_info() with info.method = "RAW". http-client/minimal-http-client shows how to do that, just set info.method to "RAW".)
This example demonstrates how to adopt a foreign, connected socket into lws as a raw wsi, bound to a specific lws protocol.
The example connects a socket itself to libwebsockets.org:80, and then has lws adopt it as a raw wsi. The lws protocol writes "GET / HTTP/1.1" to the socket and hexdumps what was sent back.
The socket won't close until the server side times it out, since it's a raw socket that doesn't understand it's looking at http.
build
$ cmake . && make
usage
$ ./lws-minimal-raw-adopt-tcp
[2018/03/23 09:03:57:1960] USER: LWS minimal raw adopt tcp
[2018/03/23 09:03:57:1961] NOTICE: Creating Vhost 'default' port 7681, 1 protocols, IPv6 off
[2018/03/23 09:03:57:2079] USER: Starting connect...
[2018/03/23 09:03:57:4963] USER: Connected...
[2018/03/23 09:03:57:4963] USER: LWS_CALLBACK_RAW_ADOPT
[2018/03/23 09:03:57:7842] USER: LWS_CALLBACK_RAW_RX (186)
[2018/03/23 09:03:57:7842] NOTICE:
[2018/03/23 09:03:57:7842] NOTICE: 0000: 48 54 54 50 2F 31 2E 31 20 33 30 31 20 52 65 64 HTTP/1.1 301 Red
[2018/03/23 09:03:57:7842] NOTICE: 0010: 69 72 65 63 74 0D 0A 73 65 72 76 65 72 3A 20 6C irect..server: l
[2018/03/23 09:03:57:7842] NOTICE: 0020: 77 73 77 73 0D 0A 53 74 72 69 63 74 2D 54 72 61 wsws..Strict-Tra
[2018/03/23 09:03:57:7843] NOTICE: 0030: 6E 73 70 6F 72 74 2D 53 65 63 75 72 69 74 79 3A nsport-Security:
[2018/03/23 09:03:57:7843] NOTICE: 0040: 20 6D 61 78 2D 61 67 65 3D 31 35 37 36 38 30 30 max-age=1576800
[2018/03/23 09:03:57:7843] NOTICE: 0050: 30 20 3B 20 69 6E 63 6C 75 64 65 53 75 62 44 6F 0 ; includeSubDo
[2018/03/23 09:03:57:7843] NOTICE: 0060: 6D 61 69 6E 73 0D 0A 6C 6F 63 61 74 69 6F 6E 3A mains..location:
[2018/03/23 09:03:57:7843] NOTICE: 0070: 20 68 74 74 70 73 3A 2F 2F 6C 69 62 77 65 62 73 https://libwebs
[2018/03/23 09:03:57:7843] NOTICE: 0080: 6F 63 6B 65 74 73 2E 6F 72 67 0D 0A 63 6F 6E 74 ockets.org..cont
[2018/03/23 09:03:57:7843] NOTICE: 0090: 65 6E 74 2D 74 79 70 65 3A 20 74 65 78 74 2F 68 ent-type: text/h
[2018/03/23 09:03:57:7843] NOTICE: 00A0: 74 6D 6C 0D 0A 63 6F 6E 74 65 6E 74 2D 6C 65 6E tml..content-len
[2018/03/23 09:03:57:7843] NOTICE: 00B0: 67 74 68 3A 20 30 0D 0A 0D 0A gth: 0....
[2018/03/23 09:03:57:7843] NOTICE:
[2018/03/23 09:04:03:3627] USER: LWS_CALLBACK_RAW_CLOSE
Note the example does everything itself, after 5s idle the remote server closes the connection after which the example continues until you ^C it.