1 files changed, 68 insertions, 0 deletions
diff --git a/src/pal/src/include/pal/fakepoll.h b/src/pal/src/include/pal/fakepoll.h
new file mode 100644
index 0000000000..eec40d6612
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+++ b/src/pal/src/include/pal/fakepoll.h
@@ -0,0 +1,68 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+// fakepoll.h
+// poll using select
+// Warning: a call to this poll() takes about 4K of stack space.
+
+// Greg Parker     gparker@cs.stanford.edu     December 2000
+// This code is in the public domain and may be copied or modified without 
+// permission. 
+
+// Located at <http://www.sealiesoftware.com/fakepoll.h>.
+
+
+
+
+#ifndef _FAKE_POLL_H
+#define _FAKE_POLL_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif // __cplusplus
+
+#ifdef FD_SETSIZE
+#undef FD_SETSIZE
+#endif
+#define FD_SETSIZE OPEN_MAX
+
+typedef struct pollfd {
+    int fd;                         /* file desc to poll */
+    short events;                   /* events of interest on fd */
+    short revents;                  /* events that occurred on fd */
+} pollfd_t;
+
+// Typically defined in sys/stropts.h and used for an infinite timeout.
+#ifndef _INFTIM
+#define _INFTIM -1
+#endif
+#ifndef INFTIM
+#define INFTIM _INFTIM
+#endif
+
+// poll flags
+#define POLLIN  0x0001
+#define POLLOUT 0x0004
+#define POLLERR 0x0008
+
+// synonyms
+#define POLLNORM POLLIN
+#define POLLPRI POLLIN
+#define POLLRDNORM POLLIN
+#define POLLRDBAND POLLIN
+#define POLLWRNORM POLLOUT
+#define POLLWRBAND POLLOUT
+
+// ignored
+#define POLLHUP 0x0010
+#define POLLNVAL 0x0020
+
+int poll(struct pollfd *pollSet, int pollCount, int pollTimeout);
+
+#ifdef __cplusplus
+}
+#endif // __cplusplus
+
+#endif  /* _FAKE_POLL_H */