================
@@ -24,41 +30,95 @@ using namespace llvm;
namespace lldb_dap {
-FifoFile::FifoFile(StringRef path) : m_path(path) {}
+std::error_code EC;
+FifoFile::FifoFile(StringRef path)
+ : m_path(path), m_file(fopen(path.data(), "r+")) {
+ if (m_file == nullptr) {
+ EC = std::error_code(errno, std::generic_category());
+ llvm::errs() << "Failed to open fifo file " << path << ": " << EC.message()
+ << "\n";
+ std::terminate();
+ }
+ if (setvbuf(m_file, NULL, _IONBF, 0))
+ llvm::errs() << "Error setting unbuffered mode on C FILE\n";
+}
+FifoFile::FifoFile(StringRef path, FILE *f) : m_path(path), m_file(f) {}
+FifoFile::FifoFile(FifoFile &&other)
+ : m_path(other.m_path), m_file(other.m_file) {
+ other.m_file = nullptr;
+}
FifoFile::~FifoFile() {
+ if (m_file)
+ fclose(m_file);
#if !defined(_WIN32)
+ // Unreferenced named pipes are deleted automatically on Win32
unlink(m_path.c_str());
#endif
}
-Expected<std::shared_ptr<FifoFile>> CreateFifoFile(StringRef path) {
-#if defined(_WIN32)
- return createStringError(inconvertibleErrorCode(), "Unimplemented");
+// This probably belongs to llvm::sys::fs as another FSEntity type
+std::error_code createNamedPipe(const Twine &Prefix, StringRef Suffix,
+ int &ResultFd,
+ SmallVectorImpl<char> &ResultPath) {
+ const char *Middle = Suffix.empty() ? "-%%%%%%" : "-%%%%%%.";
+ auto EC = sys::fs::getPotentiallyUniqueFileName(
+#ifdef _WIN32
+ "\\\\.\\pipe\\LOCAL\\"
+#else
+ "/tmp/"
----------------
SuibianP wrote:
On Windows FIFOs live on a virtual hierarchy `\\.\pipe\` not backed a real
filesystem. I don't think it is possible to `mkdir` on them, although it is
possible to specify something like `\\.\pipe\tmp\dir\myfifo` to
`CreateNamedPipe`.
https://github.com/llvm/llvm-project/pull/121269
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