add aio.d for linux x64

mak/COPY

@@ -153,6 +153,7 @@ COPY=\
 	$(IMPDIR)\core\sys\osx\sys\mman.d \
 	\
 	$(IMPDIR)\core\sys\posix\arpa\inet.d \
+	$(IMPDIR)\core\sys\posix\aio.d \
 	$(IMPDIR)\core\sys\posix\config.d \
 	$(IMPDIR)\core\sys\posix\dirent.d \
 	$(IMPDIR)\core\sys\posix\dlfcn.d \

src/core/sys/posix/aio.d

@@ -0,0 +1,74 @@
+/**
+ * D header file to interface with the
+ * $(HTTP pubs.opengroup.org/onlinepubs/9699919799/basedefs/aio.h.html, Posix AIO API).
+ *
+ * Copyright: Copyright D Language Foundation 2018.
+ * License:   $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
+ * Authors:   $(HTTPS github.com/darredevil, Alexandru Razvan Caciulescu)
+ */
+module core.sys.posix.aio;
+
+private import core.sys.posix.signal;
+
+version (Posix):
+
+extern (C):
+@system:
+@nogc:
+nothrow:
+
+version (CRuntime_Glibc)
+{
+    version (X86_64)
+    {
+        struct aiocb
+        {
+            int aio_fildes;
+            int aio_lio_opcode;
+            int aio_reqprio;
+            void *aio_buf;   //volatile
+            size_t aio_nbytes;
+            sigevent aio_sigevent;
+
+            ubyte[24] internal_members_padding;
+            off_t aio_offset;
+            ubyte[32] __glibc_reserved;
+        }
+    }
+    else
+        static assert(0);
+}
+else
+    static assert(false, "Unsupported platform");
+
+/* Return values of cancelation function.  */
+enum
+{
+    AIO_CANCELED,
+    AIO_NOTCANCELED,
+    AIO_ALLDONE
+};
+
+/* Operation codes for `aio_lio_opcode'.  */
+enum
+{
+    LIO_READ,
+    LIO_WRITE,
+    LIO_NOP
+};
+
+/* Synchronization options for `lio_listio' function.  */
+enum
+{
+    LIO_WAIT,
+    LIO_NOWAIT
+};
+
+int aio_read(aiocb *aiocbp);
+int aio_write(aiocb *aiocbp);
+int aio_fsync(int op, aiocb *aiocbp);
+int aio_error(const(aiocb)* aiocbp);
+ssize_t aio_return(const(aiocb)* aiocbp);
+int aio_suspend(const(aiocb*)* aiocb_list, int nitems, const(timespec)* timeout);
+int aio_cancel(int fd, aiocb *aiocbp);
+int lio_listio(int mode, const(aiocb*)* aiocb_list, int nitems, sigevent *sevp);

win32.mak

@@ -617,6 +617,9 @@ $(IMPDIR)\core\sys\osx\sys\mman.d : src\core\sys\osx\sys\mman.d
 $(IMPDIR)\core\sys\posix\arpa\inet.d : src\core\sys\posix\arpa\inet.d
 	copy $** $@
 
+$(IMPDIR)\core\sys\posix\aio.d : src\core\sys\posix\aio.d
+	copy $** $@
+
 $(IMPDIR)\core\sys\posix\config.d : src\core\sys\posix\config.d
 	copy $** $@
 

win64.mak

@@ -628,6 +628,9 @@ $(IMPDIR)\core\sys\osx\sys\mman.d : src\core\sys\osx\sys\mman.d
 $(IMPDIR)\core\sys\posix\arpa\inet.d : src\core\sys\posix\arpa\inet.d
 	copy $** $@
 
+$(IMPDIR)\core\sys\posix\aio.d : src\core\sys\posix\aio.d
+	copy $** $@
+
 $(IMPDIR)\core\sys\posix\config.d : src\core\sys\posix\config.d
 	copy $** $@