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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-05-27 23:42:24 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-05-28 09:11:12 +0000 |
commit | f9011787497a276f84ef79ae233992692a626dc7 (patch) | |
tree | 680f878010797f43048084ad75a59d26628866b6 /sysdeps/generic/sigset-cvt-mask.h | |
parent | 31563b68410ff8e9490c5aafca31ec71b38f87a5 (diff) | |
download | glibc-f9011787497a276f84ef79ae233992692a626dc7.tar.gz glibc-f9011787497a276f84ef79ae233992692a626dc7.tar.xz glibc-f9011787497a276f84ef79ae233992692a626dc7.zip |
hurd: Fix pselect atomicity
In case the signal arrives before the __mach_msg call, we need to catch between the sigprocmask call and the __mach_msg call. Let's just reuse the support for sigsuspend to make the signal send a message that our __mach_msg call will just receive. * hurd/hurdselect.c (_hurd_select): Add sigport and ss variables. When sigmask is not NULL, create a sigport port and register as ss->suspended. Add it to the portset. When we receive a message on it, set error to EINTR. Clean up sigport and portset appropriately. * hurd/hurdsig.c (wake_sigsuspend): Note that pselect also uses it.
Diffstat (limited to 'sysdeps/generic/sigset-cvt-mask.h')
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