1 //===-- Linux implementation of wait --------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "src/__support/common.h" 10 #include "src/__support/libc_assert.h" 11 12 #include "src/__support/macros/config.h" 13 #include "src/sys/wait/wait.h" 14 #include "src/sys/wait/wait4Impl.h" 15 16 namespace LIBC_NAMESPACE_DECL { 17 18 LLVM_LIBC_FUNCTION(pid_t, wait, (int *wait_status)) { 19 auto result = internal::wait4impl(-1, wait_status, 0, 0); 20 if (!result.has_value()) { 21 libc_errno = result.error(); 22 return -1; 23 } 24 return result.value(); 25 } 26 27 } // namespace LIBC_NAMESPACE_DECL 28