Travel3: Simple image and video display site

Reads the images and videos from filesystem and builds a site in
memroy.

1 files changed, 47 insertions, 0 deletions

diff --git a/src/unique_pipe.cc b/src/unique_pipe.cc
new file mode 100644
index 0000000..3ab1871
--- /dev/null
+++ b/src/unique_pipe.cc
@@ -0,0 +1,47 @@
+#include "common.hh"
+
+#include "io.hh"
+#include "unique_pipe.hh"
+
+#include <fcntl.h>
+#include <unistd.h>
+
+unique_pipe::unique_pipe(bool non_blocking_reader, bool non_blocking_writer) {
+  int fd[2];
+#if HAVE_PIPE2
+  if (non_blocking_reader == non_blocking_writer) {
+    if (pipe2(fd, non_blocking_reader ? O_NONBLOCK : 0) == 0) {
+      fd_[0] = unique_fd(fd[0]);
+      fd_[1] = unique_fd(fd[1]);
+    }
+    return;
+  }
+#endif
+  if (pipe(fd))
+    return;
+  if (non_blocking_reader)
+    io::make_nonblocking(fd[0]);
+  if (non_blocking_writer)
+    io::make_nonblocking(fd[1]);
+  fd_[0] = unique_fd(fd[0]);
+  fd_[1] = unique_fd(fd[1]);
+}
+
+unique_pipe::unique_pipe(unique_pipe&& fd) noexcept {
+  fd_[0] = unique_fd(fd.fd_[0].release());
+  fd_[1] = unique_fd(fd.fd_[1].release());
+}
+
+void unique_pipe::reset() {
+  fd_[0].reset();
+  fd_[1].reset();
+}
+
+unique_fd unique_pipe::release_reader() {
+  return std::move(fd_[0]);
+}
+
+unique_fd unique_pipe::release_writer() {
+  return std::move(fd_[1]);
+}
+