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Cygwin: signal: implement signalfd

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First cut of a signalfd implementation.

Still TODO: Non-polling select.

This should mostly work as on Linux except for missing support
for some members of struct signalfd_siginfo, namely ssi_fd,
ssi_band (both SIGIO/SIGPOLL, not fully implemented) and ssi_trapno
(HW exception, required HW support).

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2019-01-13 23:13:33 +01:00
parent 8ae26f96ae
commit 9d13a2995c
17 changed files with 397 additions and 4 deletions
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4
winsup/cygwin/devices.h
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@@ -72,6 +72,8 @@ enum fh_devices
FH_DEV = FHDEV (DEV_VIRTFS_MAJOR, 193),
FH_CYGDRIVE= FHDEV (DEV_VIRTFS_MAJOR, 192),
FH_SIGNALFD= FHDEV (DEV_VIRTFS_MAJOR, 13),
DEV_FLOPPY_MAJOR = 2,
FH_FLOPPY = FHDEV (DEV_FLOPPY_MAJOR, 0),
@@ -400,6 +402,8 @@ extern const _device dev_af_local_storage;
extern const _device dev_af_unix_storage;
#define af_unix_dev ((device *) &dev_af_unix_storage)
extern const _device dev_signalfd_storage;
#define signalfd_dev ((device *) &dev_signalfd_storage)
extern const _device dev_piper_storage;
#define piper_dev ((device *) &dev_piper_storage)
extern const _device dev_pipew_storage;