Implement enif_select and add select and mkfifo to file functions
#617
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`enif_select` is an API that allows nifs to use `select(2)` or equivalent, paving the way for nif-based drivers. `enif_select` depends on platform implementations and this PR only implements it on generic_unix platform, using `sys_poll_event` select-like function, namely `kqueue(2)` or `poll(2)`. As a result, `enif_select` does not exactly behaves like `select(2)` and this is documented. For testing, add `mkfifo` and `select` to POSIX file functions. Signed-off-by: Paul Guyot <pguyot@kallisys.net>
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Add enif_monitor Continuation of PR #617 NIF monitors are required for enif_select-based drivers that do not leak, so they can release resources when the target process dies. These changes are made under both the "Apache 2.0" and the "GNU Lesser General Public License 2.1 or later" license terms (dual license). SPDX-License-Identifier: Apache-2.0 OR LGPL-2.1-or-later
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enif_selectis an API that allows nifs to useselect(2)or equivalent,paving the way for nif-based drivers.
enif_selectdepends on platform implementations and this PR only implementsit on generic_unix platform, using
sys_poll_eventselect-like function,namely
kqueue(2)orpoll(2). As a result,enif_selectdoes not exactlybehaves like
select(2)and this is documented.For testing, add
mkfifoandselectto POSIX file functions.These changes are made under both the "Apache 2.0" and the "GNU Lesser General
Public License 2.1 or later" license terms (dual license).
SPDX-License-Identifier: Apache-2.0 OR LGPL-2.1-or-later