mirror of
https://github.com/warmcat/libwebsockets.git
synced 2025-03-23 00:00:06 +01:00
c6c7ab2b44
Event lib support as it has been isn't scaling well, at the low level libevent and libev headers have a namespace conflict so they can't both be built into the same image, and at the distro level, binding all the event libs to libwebsockets.so makes a bloaty situation for packaging, lws will drag in all the event libs every time. This patch implements the plan discussed here https://github.com/warmcat/libwebsockets/issues/1980 and refactors the event lib support so they are built into isolated plugins and bound at runtime according to what the application says it wants to use. The event lib plugins can be packaged individually so that only the needed sets of support are installed (perhaps none of them if the user code is OK with the default poll() loop). And dependent user code can mark the specific event loop plugin package as required so pieces are added as needed. The eventlib-foreign example is also refactored to build the selected lib support isolated. A readme is added detailing the changes and how to use them. https://libwebsockets.org/git/libwebsockets/tree/READMEs/README.event-libs.md
392 lines
9.7 KiB
Text
392 lines
9.7 KiB
Text
#
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# libwebsockets - small server side websockets and web server implementation
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#
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# Copyright (C) 2010 - 2020 Andy Green <andy@warmcat.com>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to
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# deal in the Software without restriction, including without limitation the
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# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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# sell copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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#
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# This part of the CMakeLists.txt defines internal logic between options
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if(IOS)
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set(LWS_DETECTED_PLAT_IOS 1)
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endif()
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# Workaround for ESP-IDF
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# Detect ESP_PLATFORM environment flag, if exist, set LWS_WITH_ESP32.
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# Otherwise the user may not be able to run configuration ESP-IDF in the first time.
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if (ESP_PLATFORM)
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message(STATUS "ESP-IDF enabled")
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set(LWS_WITH_ESP32 ON)
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set(LWS_WITH_ZLIB OFF)
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set(LWS_HAVE_mbedtls_ssl_get_alpn_protocol 1)
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else()
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set(LWS_WITH_ESP32_HELPER OFF)
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endif()
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if (LWS_WITH_ESP32)
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set(LWS_PLAT_FREERTOS 1)
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endif()
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if (LWS_PLAT_OPTEE)
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set(LWS_WITH_UDP 0)
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endif()
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if (LWS_PLAT_FREERTOS)
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message(STATUS "No LWS_WITH_DIR or LWS_WITH_LEJP_CONF")
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set(LWS_WITH_DIR OFF)
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set(LWS_WITH_LEJP_CONF OFF)
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message("LWS_WITH_DIR ${LWS_WITH_DIR}")
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else()
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message(STATUS "Compiled with LWS_WITH_DIR and LWS_WITH_LEJP_CONF")
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set(LWS_WITH_DIR ON)
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set(LWS_WITH_LEJP_CONF ON)
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endif()
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if (LWS_FOR_GITOHASHI)
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set(LWS_WITH_THREADPOOL 1)
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set(LWS_WITH_HTTP2 1)
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set(LWS_UNIX_SOCK 1)
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set(LWS_WITH_HTTP_PROXY 1)
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set(LWS_WITH_FTS 1)
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set(LWS_WITH_DISKCACHE 1)
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set(LWS_WITH_LWSAC 1)
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set(LWS_WITH_LEJP_CONF 1)
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set(LWS_WITH_SPAWN 1)
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set(LWS_WITH_FSMOUNT 1)
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set(LWS_WITH_STRUCT_JSON 1)
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set(LWS_WITH_STRUCT_SQLITE3 1)
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endif()
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if(LWS_WITH_DISTRO_RECOMMENDED)
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set(LWS_WITH_HTTP2 1) # selfcontained
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set(LWS_WITH_LWSWS 1) # libuv
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set(LWS_WITH_CGI 1) # selfcontained
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set(LWS_IPV6 1) # selfcontained
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set(LWS_WITH_ZIP_FOPS 1) # libz
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set(LWS_WITH_SOCKS5 1) # selfcontained
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set(LWS_WITH_RANGES 1) # selfcontained
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set(LWS_WITH_ACME 1) # selfcontained / tls
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set(LWS_WITH_SERVER_STATUS 1) # selfcontained
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set(LWS_WITH_GLIB 1) # glib
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set(LWS_WITH_LIBUV 1) # libuv
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set(LWS_WITH_LIBEV 1) # libev
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set(LWS_WITH_LIBEVENT 1) # libevent
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set(LWS_WITH_EVLIB_PLUGINS 1) # event libraries created as plugins / individual packages
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set(LWS_WITHOUT_EXTENSIONS 0) # libz
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set(LWS_ROLE_DBUS 1) # dbus-related libs
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set(LWS_WITH_FTS 1) # selfcontained
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set(LWS_WITH_THREADPOOL 1) # pthreads
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set(LWS_UNIX_SOCK 1) # selfcontained
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set(LWS_WITH_HTTP_PROXY 1) # selfcontained
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set(LWS_WITH_DISKCACHE 1) # selfcontained
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set(LWS_WITH_LWSAC 1) # selfcontained
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set(LWS_WITH_LEJP_CONF 1) # selfcontained
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set(LWS_WITH_PLUGINS 1) # libdl
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set(LWS_ROLE_RAW_PROXY 1) # selfcontained
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set(LWS_WITH_GENCRYPTO 1) # selfcontained / tls
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set(LWS_WITH_JOSE 1) # selfcontained
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set(LWS_WITH_STRUCT_JSON 1) # selfcontained
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set(LWS_WITH_STRUCT_SQLITE3 1) # sqlite3
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set(LWS_WITH_SPAWN 1) # selfcontained
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# libmount is problematic on Centos 8 / RHEL 8
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# set(LWS_WITH_FSMOUNT 1)
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set(LWS_ROLE_MQTT 1) # selfcontained
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set(LWS_WITH_SECURE_STREAMS 1) # selfcontained
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set(LWS_WITH_SECURE_STREAMS_PROXY_API 1) # selfcontained
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set(LWS_WITH_DIR 1) # selfcontained
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endif()
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# LWS_WITH_EVENT_LIBS is set if any event lib selected
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if (LWS_WITH_LIBEV OR
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LWS_WITH_LIBUV OR
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LWS_WITH_LIBEVENT OR
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LWS_WITH_GLIB)
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set(LWS_WITH_EVENT_LIBS 1)
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else()
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unset(LWS_WITH_EVENT_LIBS)
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endif()
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if (LWS_WITH_SECURE_STREAMS_PROXY_API)
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set(LWS_WITH_LWS_DSH 1)
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set(LWS_WITH_UNIX_SOCK 1)
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endif()
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if (NOT LWS_WITH_NETWORK)
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set(LWS_ROLE_MQTT 0)
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set(LWS_ROLE_H1 0)
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set(LWS_ROLE_WS 0)
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set(LWS_ROLE_RAW 0)
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set(LWS_WITHOUT_EXTENSIONS 1)
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set(LWS_WITHOUT_SERVER 1)
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set(LWS_WITHOUT_CLIENT 1)
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set(LWS_WITH_HTTP2 0)
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set(LWS_WITH_SOCKS5 0)
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set(LWS_UNIX_SOCK 0)
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set(LWS_WITH_HTTP_PROXY 0)
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set(LWS_WITH_PLUGINS 0)
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set(LWS_WITH_LWSWS 0)
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set(LWS_WITH_CGI 0)
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set(LWS_ROLE_RAW_PROXY 0)
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set(LWS_WITH_PEER_LIMITS 0)
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set(LWS_WITH_HTTP_STREAM_COMPRESSION 0)
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set(LWS_WITH_HTTP_BROTLI 0)
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set(LWS_WITH_POLL 0)
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set(LWS_WITH_SEQUENCER 0)
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set(LWS_ROLE_DBUS 0)
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set(LWS_WITH_LWS_DSH 0)
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set(LWS_WITH_THREADPOOL 0)
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set(LWS_WITH_SYS_SMD 0)
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endif()
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if (LWS_WITH_CGI)
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set(LWS_WITH_SPAWN 1)
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endif()
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if (LWS_WITH_STRUCT_SQLITE3)
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set(LWS_WITH_SQLITE3 1)
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endif()
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if (LWS_WITH_HTTP_BASIC_AUTH)
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# WWW_AUTHENTICATE used by basic auth is an "uncommon header"
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set(LWS_WITH_HTTP_UNCOMMON_HEADERS 1)
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endif()
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if (APPLE)
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set(LWS_ROLE_DBUS 0)
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endif()
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if(NOT DEFINED CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type")
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endif()
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if (LWS_PLAT_FREERTOS)
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set(LWS_UNIX_SOCK 0)
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endif()
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if (LWS_PLAT_FREERTOS)
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set(LWS_WITH_FTS 0)
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endif()
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if (LWS_WITH_HTTP2)
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set(LWS_ROLE_H2 1)
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endif()
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if (LWS_WITH_CGI)
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set(LWS_ROLE_CGI 1)
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endif()
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if (NOT LWS_ROLE_WS)
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set(LWS_WITHOUT_EXTENSIONS 1)
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endif()
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unset(LWS_WITH_LIBUV_INTERNAL)
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if (LWS_WITH_LWSWS)
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message(STATUS "LWS_WITH_LWSWS --> Enabling LWS_WITH_PLUGINS and LWS_WITH_LIBUV")
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set(LWS_WITH_PLUGINS 1)
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set(LWS_WITH_LIBUV 1)
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set(LWS_WITH_LIBUV_INTERNAL 1)
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set(LWS_WITH_EVENT_LIBS 1) # implied by LIBUV_INTERNAL
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set(LWS_WITH_ACCESS_LOG 1)
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set(LWS_WITH_SERVER_STATUS 1)
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set(LWS_WITH_LEJP 1)
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set(LWS_WITH_LEJP_CONF 1)
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set(LWS_WITH_PEER_LIMITS 1)
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set(LWS_ROLE_RAW_PROXY 1)
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endif()
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# sshd plugin
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if (LWS_WITH_PLUGINS)
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set(LWS_WITH_GENCRYPTO 1)
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endif()
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if (LWS_ROLE_RAW_PROXY)
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set (LWS_WITH_CLIENT 1)
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set (LWS_WITH_SERVER 1)
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endif()
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if (LWS_WITH_ACME)
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set (LWS_WITH_CLIENT 1)
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set (LWS_WITH_SERVER 1)
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set (LWS_WITH_JOSE 1)
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endif()
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if (LWS_WITH_JOSE)
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set(LWS_WITH_LEJP 1)
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set(LWS_WITH_GENCRYPTO 1)
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endif()
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if (LWS_WITH_PLUGINS AND NOT LWS_WITH_LIBUV)
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message(STATUS "LWS_WITH_PLUGINS --> Enabling LWS_WITH_LIBUV")
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set(LWS_WITH_LIBUV 1)
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endif()
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if (LWS_WITH_PLUGINS OR LWS_WITH_CGI)
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# sshd plugin
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set(LWS_WITH_GENCRYPTO 1)
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endif()
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if (LWS_PLAT_FREERTOS)
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set(LWS_WITH_SHARED OFF)
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set(LWS_WITH_MBEDTLS ON)
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# set(LWS_WITHOUT_CLIENT ON)
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set(LWS_WITHOUT_TESTAPPS ON)
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set(LWS_WITHOUT_EXTENSIONS ON)
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set(LWS_WITH_PLUGINS OFF)
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set(LWS_WITH_RANGES ON)
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# this implies no pthreads in the lib
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set(LWS_MAX_SMP 1)
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set(LWS_HAVE_MALLOC 1)
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set(LWS_HAVE_REALLOC 1)
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set(LWS_HAVE_GETIFADDRS 1)
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set(LWS_WITH_CUSTOM_HEADERS 0)
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endif()
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#if (LWS_WITH_ESP32)
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# set(LWS_WITH_ZIP_FOPS 1)
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#endif()
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if (WIN32)
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set(LWS_MAX_SMP 1)
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if (LWS_WITH_PLUGINS)
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set(LWS_WITH_LIBUV_INTERNAL 1)
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endif()
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endif()
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if (LWS_WITHOUT_SERVER)
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set(LWS_WITH_LWSWS OFF)
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endif()
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if (LWS_WITH_LEJP_CONF)
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set(LWS_WITH_DIR 1)
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endif()
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# confirm H1 relationships
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if (NOT LWS_ROLE_H1 AND LWS_ROLE_H2)
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message(FATAL_ERROR "H2 requires LWS_ROLE_H1")
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endif()
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if (NOT LWS_ROLE_H1 AND LWS_ROLE_WS)
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message(FATAL_ERROR "WS requires LWS_ROLE_H1")
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endif()
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if (NOT LWS_ROLE_H1 AND LWS_ROLE_CGI)
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message(FATAL_ERROR "CGI requires LWS_ROLE_H1")
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endif()
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# confirm HTTP relationships
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if (NOT LWS_ROLE_H1 AND NOT LWS_ROLE_H2 AND LWS_WITH_HTTP_PROXY)
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message(FATAL_ERROR "LWS_WITH_LWSWS requires LWS_ROLE_H1")
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endif()
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if (NOT LWS_ROLE_H1 AND NOT LWS_ROLE_H2 AND LWS_WITH_HTTP_PROXY)
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message(FATAL_ERROR "LWS_WITH_HTTP_PROXY requires LWS_ROLE_H1")
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endif()
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if (NOT LWS_ROLE_H1 AND NOT LWS_ROLE_H2 AND LWS_WITH_RANGES)
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message(FATAL_ERROR "LWS_WITH_RANGES requires LWS_ROLE_H1")
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endif()
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if (NOT LWS_ROLE_H1 AND NOT LWS_ROLE_H2 AND LWS_WITH_ACCESS_LOG)
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message(FATAL_ERROR "LWS_WITH_ACCESS_LOG requires LWS_ROLE_H1")
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endif()
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if (LWS_WITH_HTTP_PROXY AND (LWS_WITHOUT_CLIENT OR LWS_WITHOUT_SERVER))
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message("You have to enable both client and server for http proxy")
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set(LWS_WITH_HTTP_PROXY 0)
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endif()
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if (NOT LWS_WITHOUT_EXTENSIONS OR LWS_WITH_ZIP_FOPS)
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set(LWS_WITH_ZLIB 1)
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endif()
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if (LWS_WITH_SECURE_STREAMS)
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set(LWS_WITH_SECURE_STREAMS_SYS_AUTH_API_AMAZON_COM 1)
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endif()
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if (NOT (LWS_WITH_STATIC OR LWS_WITH_SHARED))
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message(FATAL_ERROR "Makes no sense to compile with neither static nor shared libraries.")
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endif()
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if (LWS_WITHOUT_DAEMONIZE OR WIN32)
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set(LWS_NO_DAEMONIZE 1)
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endif()
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if (LWS_WITH_LIBEV)
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set(LWS_WITH_LIBEV 1)
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endif()
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if (LWS_WITH_LIBUV)
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set(LWS_WITH_LIBUV 1)
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endif()
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if (LWS_WITH_LIBEVENT)
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set(LWS_WITH_LIBEVENT 1)
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endif()
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if (LWS_IPV6)
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set(LWS_WITH_IPV6 1)
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endif()
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if (LWS_UNIX_SOCK)
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set(LWS_WITH_UNIX_SOCK 1)
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endif()
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if (NOT LWS_MAX_SMP)
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set(LWS_MAX_SMP 1)
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endif()
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if ("${LWS_MAX_SMP}" STREQUAL "")
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set(LWS_MAX_SMP 1)
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endif()
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set(LWS_WITH_CLIENT 1)
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if (LWS_WITHOUT_CLIENT)
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set(LWS_WITH_CLIENT)
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set(LWS_WITH_SECURE_STREAMS 0)
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endif()
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set(LWS_WITH_SERVER 1)
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if (LWS_WITHOUT_SERVER)
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set(LWS_WITH_SERVER)
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endif()
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# using any abstract protocol enables LWS_WITH_ABSTRACT
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#if (LWS_WITH_SMTP)
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# set(LWS_WITH_ABSTRACT 1)
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#endif()
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if (NOT LWS_WITH_EVLIB_PLUGINS AND (LWS_WITH_LIBEV AND LWS_WITH_LIBEVENT))
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message(FATAL_ERROR "Sorry libev and libevent conflict with each others' namespace, you can only have one or the other")
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endif()
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if (LWS_SSL_SERVER_WITH_ECDH_CERT)
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set(LWS_SSL_SERVER_WITH_ECDH_CERT 1)
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endif()
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# LWS_OPENSSL_SUPPORT deprecated... use LWS_WITH_TLS
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if (LWS_WITH_SSL OR LWS_WITH_MBEDTLS)
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set(LWS_OPENSSL_SUPPORT 1)
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set(LWS_WITH_TLS 1)
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endif()
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if (NOT LWS_WITH_SSL)
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set(LWS_WITHOUT_BUILTIN_SHA1 OFF)
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endif()
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