[libc-commits] [libc] [libc][POSIX][poll.h] implement poll (PR #125118)

[Nick Desaulniers via libc-commits]

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@@ -0,0 +1,31 @@
+//===-- Implementation of poll --------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/poll/poll.h"
+
+#include "hdr/types/nfds_t.h"
+#include "hdr/types/struct_pollfd.h"
+#include "src/__support/OSUtil/syscall.h" // syscall_impl
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+#include "src/errno/libc_errno.h"
+
+#include <sys/syscall.h> // SYS_poll
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(int, poll, (struct pollfd * fds, nfds_t nfds, int timeout)) {
+  int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_poll, fds, nfds, timeout);
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nickdesaulniers wrote:

a860748c9d56. Will omit ppoll_time64 since that will only help riscv32 at the moment.

https://github.com/llvm/llvm-project/pull/125118