1 files changed, 50 insertions, 0 deletions
diff --git a/libasyncio/AsyncIO.cpp b/libasyncio/AsyncIO.cpp
new file mode 100644
index 000000000..7430bc81e
--- /dev/null
+++ b/libasyncio/AsyncIO.cpp
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <asyncio/AsyncIO.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+int io_setup(unsigned nr, aio_context_t* ctxp) {
+    memset(ctxp, 0, sizeof(*ctxp));
+    return syscall(__NR_io_setup, nr, ctxp);
+}
+
+int io_destroy(aio_context_t ctx) {
+    return syscall(__NR_io_destroy, ctx);
+}
+
+int io_submit(aio_context_t ctx, long nr, iocb** iocbpp) {
+    return syscall(__NR_io_submit, ctx, nr, iocbpp);
+}
+
+int io_getevents(aio_context_t ctx, long min_nr, long max_nr, io_event* events, timespec* timeout) {
+    return syscall(__NR_io_getevents, ctx, min_nr, max_nr, events, timeout);
+}
+
+int io_cancel(aio_context_t ctx, iocb* iocbp, io_event* result) {
+    return syscall(__NR_io_cancel, ctx, iocbp, result);
+}
+
+void io_prep(iocb* iocb, int fd, const void* buf, uint64_t count, int64_t offset, bool read) {
+    memset(iocb, 0, sizeof(*iocb));
+    iocb->aio_fildes = fd;
+    iocb->aio_lio_opcode = read ? IOCB_CMD_PREAD : IOCB_CMD_PWRITE;
+    iocb->aio_reqprio = 0;
+    iocb->aio_buf = reinterpret_cast<uint64_t>(buf);
+    iocb->aio_nbytes = count;
+    iocb->aio_offset = offset;
+}