1 files changed, 65 insertions, 0 deletions
diff --git a/libs/audiographer/audiographer/sndfile/tmp_file_sync.h b/libs/audiographer/audiographer/sndfile/tmp_file_sync.h
new file mode 100644
index 0000000000..7807346935
--- /dev/null
+++ b/libs/audiographer/audiographer/sndfile/tmp_file_sync.h
@@ -0,0 +1,65 @@
+#ifndef AUDIOGRAPHER_TMP_FILE_SYNC_H
+#define AUDIOGRAPHER_TMP_FILE_SYNC_H
+
+#include <cstdio>
+#include <string>
+
+#include <glib.h>
+#include "pbd/gstdio_compat.h"
+
+#include "sndfile_writer.h"
+#include "sndfile_reader.h"
+#include "tmp_file.h"
+
+namespace AudioGrapher
+{
+
+/// A temporary file deleted after this class is destructed
+template<typename T = DefaultSampleType>
+class TmpFileSync
+	: public TmpFile<T>
+{
+  public:
+
+	/// \a filename_template must match the requirements for mkstemp, i.e. end in "XXXXXX"
+	TmpFileSync (char * filename_template, int format, ChannelCount channels, framecnt_t samplerate)
+		: SndfileHandle (g_mkstemp(filename_template), true, SndfileBase::ReadWrite, format, channels, samplerate)
+		, filename (filename_template)
+	{}
+
+	TmpFileSync (int format, ChannelCount channels, framecnt_t samplerate)
+	  : SndfileHandle (fileno (tmpfile()), true, SndfileBase::ReadWrite, format, channels, samplerate)
+	{}
+
+	TmpFileSync (TmpFileSync const & other) : SndfileHandle (other) {}
+	using SndfileHandle::operator=;
+
+	~TmpFileSync()
+	{
+		/* explicitly close first, some OS (yes I'm looking at you windows)
+		 * cannot delete files that are still open
+		 */
+		if (!filename.empty()) {
+			SndfileBase::close();
+			std::remove(filename.c_str());
+		}
+	}
+
+	void process (ProcessContext<T> const & c)
+	{
+		SndfileWriter<T>::process (c);
+
+		if (c.has_flag(ProcessContext<T>::EndOfInput)) {
+			TmpFile<T>::FileFlushed ();
+		}
+	}
+
+	using Sink<T>::process;
+
+  private:
+	std::string filename;
+};
+
+} // namespace
+
+#endif // AUDIOGRAPHER_TMP_FILE_SYNC_H