1 files changed, 62 insertions, 0 deletions
diff --git a/ftparchive/multicompress.h b/ftparchive/multicompress.h
new file mode 100644
index 0000000..198a696
--- /dev/null
+++ b/ftparchive/multicompress.h
@@ -0,0 +1,62 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+
+   MultiCompressor
+   
+   Multiple output class. Takes a single FILE* and writes it simultaneously
+   to many compressed files. Then checks if the resulting output is 
+   different from any previous output and overwrites the old files. Care is
+   taken to ensure that the new files are not generally readable while they
+   are being written.
+   
+   ##################################################################### */
+									/*}}}*/
+#ifndef MULTICOMPRESS_H
+#define MULTICOMPRESS_H
+
+#include <apt-pkg/aptconfiguration.h>
+#include <apt-pkg/fileutl.h>
+
+#include <cstdio>
+#include <ctime>
+#include <string>
+#include <sys/types.h>
+
+class MultiCompress
+{
+   // An output file
+   struct Files
+   {
+      std::string Output;
+      APT::Configuration::Compressor CompressProg;
+      Files *Next;
+      FileFd TmpFile;
+      pid_t CompressProc;
+      time_t OldMTime;
+   };
+   
+   Files *Outputs;
+   pid_t Outputter;
+   mode_t Permissions;
+
+   bool Child(int const &Fd);
+   bool Start();
+   bool Die();
+   
+   public:
+   
+   // The FD to write to for compression.
+   FileFd Input;
+   unsigned long UpdateMTime;
+   
+   bool Finalize(unsigned long long &OutSize);
+   bool OpenOld(FileFd &Fd);
+   static bool GetStat(std::string const &Output,std::string const &Compress,struct stat &St);
+   
+   MultiCompress(std::string const &Output,std::string const &Compress,
+		 mode_t const &Permissions, bool const &Write = true);
+   ~MultiCompress();
+};
+
+#endif