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[wasm] include/ruby/io.h: define RB_WAITFD_PRI by ourselves for wasi

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RB_WAITFD_PRI uses POLLPRI for other platforms, but wasi-libc doesn't
have POLLPRI for now.
This commit is contained in:
Yuta Saito 2021-12-15 15:49:59 +09:00
parent 4f579ecfce
commit 50f1468bfd
Notes: git 2022-01-19 11:19:36 +09:00 
Merged: https://github.com/ruby/ruby/pull/5407
1 changed files with 6 additions and 1 deletions
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7
include/ruby/io.h
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@ -35,7 +35,12 @@
# undef revents
# endif
# define RB_WAITFD_IN POLLIN
# define RB_WAITFD_PRI POLLPRI
# if defined(__wasi__) && !defined(POLLPRI)
// wasi-libc doesn't have POLLPRI and 0x002 is already reserved for POLLOUT, so use 0x003
# define RB_WAITFD_PRI 0x003
# else
# define RB_WAITFD_PRI POLLPRI
# endif
# define RB_WAITFD_OUT POLLOUT
#else
# define RB_WAITFD_IN 0x001