diff options
Diffstat (limited to 'winsup/cygwin/signal.cc')
| -rw-r--r-- | winsup/cygwin/signal.cc | 62 |
1 files changed, 61 insertions, 1 deletions
diff --git a/winsup/cygwin/signal.cc b/winsup/cygwin/signal.cc index c5e9d01..5dee402 100644 --- a/winsup/cygwin/signal.cc +++ b/winsup/cygwin/signal.cc @@ -12,6 +12,7 @@ details. */ #include "winsup.h" #include <stdlib.h> #include <sys/cygwin.h> +#include <sys/signalfd.h> #include "pinfo.h" #include "sigproc.h" #include "cygtls.h" @@ -592,7 +593,7 @@ siginterrupt (int sig, int flag) return res; } -static inline int +int sigwait_common (const sigset_t *set, siginfo_t *info, PLARGE_INTEGER waittime) { int res = -1; @@ -781,3 +782,62 @@ sigaltstack (const stack_t *ss, stack_t *oss) __endtry return 0; } + +extern "C" int +signalfd (int fd_in, const sigset_t *mask, int flags) +{ + int ret = -1; + fhandler_signalfd *fh; + + debug_printf ("signalfd (%d, %p, %y)", fd_in, mask, flags); + + if ((flags & ~(SFD_NONBLOCK | SFD_CLOEXEC)) != 0) + { + set_errno (EINVAL); + goto done; + } + + if (fd_in != -1) + { + /* Change signal mask. */ + cygheap_fdget fd (fd_in); + + if (fd < 0) + goto done; + fh = fd->is_signalfd (); + if (!fh) + { + set_errno (EINVAL); + goto done; + } + __try + { + if (fh->signalfd (mask, flags) == 0) + ret = fd_in; + } + __except (EINVAL) {} + __endtry + } + else + { + /* Create new signalfd descriptor. */ + cygheap_fdnew fd; + + if (fd < 0) + goto done; + fh = (fhandler_signalfd *) build_fh_dev (*signalfd_dev); + if (fh && fh->signalfd (mask, flags) == 0) + { + fd = fh; + if (fd <= 2) + set_std_handle (fd); + ret = fd; + } + else + delete fh; + } + +done: + syscall_printf ("%R = signalfd (%d, %p, %y)", ret, fd_in, mask, flags); + return ret; +} |