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59 lines
2.0 KiB
59 lines
2.0 KiB
#.rest: |
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# FindEpoll |
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# -------------- |
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# |
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# Try to find epoll or epoll-shim on this system. This finds: |
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# - some shim on Unix like systems (FreeBSD), or |
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# - the kernel's epoll on Linux systems. |
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# |
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# This will define the following variables: |
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# |
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# ``epoll_FOUND`` |
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# True if epoll is available |
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# ``epoll_LIBRARIES`` |
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# This has to be passed to target_link_libraries() |
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# ``epoll_INCLUDE_DIRS`` |
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# This has to be passed to target_include_directories() |
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# |
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# On Linux, the libraries and include directories are empty, |
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# even though epoll_FOUND may be set to TRUE. This is because |
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# no special includes or libraries are needed. On other systems |
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# these may be needed to use epoll. |
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#============================================================================= |
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# SPDX-FileCopyrightText: 2019 Tobias C. Berner <tcberner@FreeBSD.org> |
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# |
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# SPDX-License-Identifier: BSD-2-Clause |
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#============================================================================= |
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find_path(epoll_INCLUDE_DIRS sys/epoll.h PATH_SUFFIXES libepoll-shim) |
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if(epoll_INCLUDE_DIRS) |
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# On Linux there is no library to link against, on the BSDs there is. |
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# On the BSD's, epoll is implemented through a library, libepoll-shim. |
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if( CMAKE_SYSTEM_NAME MATCHES "Linux") |
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set(epoll_FOUND TRUE) |
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set(epoll_LIBRARIES "") |
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set(epoll_INCLUDE_DIRS "") |
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else() |
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find_library(epoll_LIBRARIES NAMES epoll-shim) |
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include(FindPackageHandleStandardArgs) |
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find_package_handle_standard_args(epoll |
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FOUND_VAR |
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epoll_FOUND |
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REQUIRED_VARS |
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epoll_LIBRARIES |
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epoll_INCLUDE_DIRS |
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) |
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mark_as_advanced(epoll_LIBRARIES epoll_INCLUDE_DIRS) |
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include(FeatureSummary) |
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set_package_properties(epoll PROPERTIES |
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URL "https://github.com/FreeBSDDesktop/epoll-shim" |
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DESCRIPTION "small epoll implementation using kqueue" |
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) |
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endif() |
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else() |
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set(epoll_FOUND FALSE) |
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endif() |
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mark_as_advanced(epoll_LIBRARIES epoll_INCLUDE_DIRS)
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