Fix issue #7112 - add core.sys.linux.sys.signalfd module.

posix.mak

@@ -102,6 +102,7 @@ MANIFEST= \
 	\
 	src/core/sys/linux/execinfo.d \
 	src/core/sys/linux/epoll.d \
+	src/core/sys/linux/sys/signalfd.d \
 	src/core/sys/linux/sys/xattr.d \
 	\
 	src/core/sys/osx/execinfo.d \
@@ -467,6 +468,7 @@ COPY=\
 	\
 	$(IMPDIR)/core/sys/linux/execinfo.d \
 	$(IMPDIR)/core/sys/linux/epoll.d \
+	$(IMPDIR)/core/sys/linux/sys/signalfd.d \
 	$(IMPDIR)/core/sys/linux/sys/xattr.d \
 	\
 	$(IMPDIR)/core/sys/osx/execinfo.d \

src/core/sys/linux/sys/signalfd.d

@@ -0,0 +1,42 @@
+/**
+ * D header file for Linux.
+ *
+ * Copyright: Copyright Alex Rønne Petersen 2012.
+ * License:   $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
+ * Authors:   Alex Rønne Petersen
+ */
+module core.sys.linux.sys.signalfd;
+
+import core.sys.posix.signal;
+
+version (linux):
+
+extern (C):
+@system:
+nothrow:
+
+struct signalfd_siginfo
+{
+    uint ssi_signo;
+    int ssi_errno;
+    int ssi_code;
+    uint ssi_pid;
+    uint ssi_uid;
+    int ssi_fd;
+    uint ssi_tid;
+    uint ssi_band;
+    uint ssi_overrun;
+    uint ssi_trapno;
+    int ssi_status;
+    int ssi_int;
+    ulong ssi_ptr;
+    ulong ssi_utime;
+    ulong ssi_stime;
+    ulong ssi_addr;
+    ubyte[48] __pad;
+}
+
+enum SFD_CLOEXEC = 0x80000; // 02000000
+enum SFD_NONBLOCK = 0x800; // 04000
+
+int signalfd (int __fd, const(sigset_t)* __mask, int __flags);

win32.mak

@@ -84,6 +84,7 @@ MANIFEST= \
 	\
 	src\core\sys\linux\execinfo.d \
 	src\core\sys\linux\epoll.d \
+	src\core\sys\linux\sys\signalfd.d \
 	src\core\sys\linux\sys\xattr.d \
 	\
 	src\core\sys\osx\execinfo.d \

win64.mak

@@ -91,6 +91,7 @@ MANIFEST= \
 	\
 	src\core\sys\linux\execinfo.d \
 	src\core\sys\linux\epoll.d \
+	src\core\sys\linux\sys\signalfd.d \
 	src\core\sys\linux\sys\xattr.d \
 	\
 	src\core\sys\osx\execinfo.d \