xz: Move some of the timing code into mytime.[hc].

This switches units from microseconds to milliseconds.

New clock_gettime(CLOCK_MONOTONIC) will be used if available.
There is still a fallback to gettimeofday().

1 files changed, 47 insertions, 0 deletions

diff --git a/src/xz/mytime.h b/src/xz/mytime.h
new file mode 100644
index 00000000..ea291eed
--- /dev/null
+++ b/src/xz/mytime.h
@@ -0,0 +1,47 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       mytime.h
+/// \brief      Time handling functions
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+
+/// \brief      Number of milliseconds to between LZMA_SYNC_FLUSHes
+///
+/// If 0, timed flushing is disabled. Otherwise if no more input is available
+/// and not at the end of the file and at least opt_flush_timeout milliseconds
+/// has elapsed since the start of compression or the previous flushing
+/// (LZMA_SYNC_FLUSH or LZMA_FULL_FLUSH), set LZMA_SYNC_FLUSH to flush
+/// the pending data.
+extern uint64_t opt_flush_timeout;
+
+
+/// \brief      True when flushing is needed due to expired timeout
+extern bool flush_needed;
+
+
+/// \brief      Store the time when (de)compression was started
+///
+/// The start time is also stored as the time of the first flush.
+extern void mytime_set_start_time(void);
+
+
+/// \brief      Get the number of milliseconds since the operation started
+extern uint64_t mytime_get_elapsed(void);
+
+
+/// \brief      Store the time of when compressor was flushed
+extern void mytime_set_flush_time(void);
+
+
+/// \brief      Get the number of milliseconds until the next flush
+///
+/// This returns -1 if no timed flushing is used.
+///
+/// The return value is inteded for use with poll().
+extern int mytime_get_flush_timeout(void);