1 //===---------- Linux implementation of the shm_open function -------------===// 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/sys/mman/shm_open.h" 10 #include "hdr/types/mode_t.h" 11 #include "src/__support/macros/config.h" 12 #include "src/fcntl/open.h" 13 #include "src/sys/mman/linux/shm_common.h" 14 15 namespace LIBC_NAMESPACE_DECL { 16 17 static constexpr int DEFAULT_OFLAGS = O_NOFOLLOW | O_CLOEXEC | O_NONBLOCK; 18 19 LLVM_LIBC_FUNCTION(int, shm_open, (const char *name, int oflags, mode_t mode)) { 20 using namespace shm_common; 21 if (cpp::optional<SHMPath> buffer = translate_name(name)) 22 return open(buffer->data(), oflags | DEFAULT_OFLAGS, mode); 23 return -1; 24 } 25 26 } // namespace LIBC_NAMESPACE_DECL 27