From a9071cd1c10bcf3a2203a28cdbdf0a26b4db8641 Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Fri, 31 Jul 2015 22:41:24 +0200
Subject: [PATCH] Log high precision timestamps in the logfile.

Also, don't try to import POSIX or Time::HiRes unless the logfile is
configured.
---
 imapsync             | 6 ++++--
 lib/Net/IMAP/Sync.pm | 9 +++++++--
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/imapsync b/imapsync
index 30982af..a007089 100755
--- a/imapsync
+++ b/imapsync
@@ -27,7 +27,6 @@ use Getopt::Long qw/:config posix_default no_ignore_case gnu_compat
                             bundling auto_version/;
 use DBI ();
 use List::Util 'first';
-use POSIX 'strftime';
 
 use lib 'lib';
 use Net::IMAP::Sync qw/read_config compact_set $IMAP_text $IMAP_cond/;
@@ -92,6 +91,8 @@ my ($DBFILE, $LOCKFILE, $LOGGER_FD);
     $LOCKFILE = $DBFILE =~ s/([^\/]+)\z/.$1.lck/r;
 
     if (defined $CONF->{_} and defined $CONF->{_}->{logfile}) {
+        require 'POSIX.pm';
+        require 'Time/HiRes.pm';
         open $LOGGER_FD, '>>', $CONF->{_}->{logfile}
             or die "Can't open $CONF->{_}->{logfile}: $!\n";
         $LOGGER_FD->autoflush(1);
@@ -208,7 +209,8 @@ sub logger($@) {
     return unless @_ and defined $LOGGER_FD;
     my $prefix = '';
     if ($LOGGER_FD->fileno != fileno STDERR) {
-        $prefix = strftime "%b %e %H:%M:%S ", localtime;
+        my ($s, $us) = Time::HiRes::gettimeofday();
+        $prefix = POSIX::strftime("%b %e %H:%M:%S", localtime($s)).".$us ";
     }
     $prefix .= "$name: " if defined $name;
     $LOGGER_FD->say($prefix, @_);
diff --git a/lib/Net/IMAP/Sync.pm b/lib/Net/IMAP/Sync.pm
index b44f0a6..4a9d431 100644
--- a/lib/Net/IMAP/Sync.pm
+++ b/lib/Net/IMAP/Sync.pm
@@ -23,7 +23,6 @@ use strict;
 use Config::Tiny ();
 use IO::Select ();
 use List::Util 'first';
-use POSIX 'strftime';
 use Socket 'SO_KEEPALIVE';
 
 use Exporter 'import';
@@ -288,6 +287,11 @@ sub new($%) {
     # are considered.
     $self->{_MODIFIED} = {};
 
+    if (defined $self->{'logger-fd'} and $self->{'logger-fd'}->fileno != fileno STDERR) {
+        require 'POSIX.pm';
+        require 'Time/HiRes.pm';
+    }
+
     # wait for the greeting
     my $x = $self->_getline();
     $x =~ s/\A\* (OK|PREAUTH) // or $self->panic($x);
@@ -402,7 +406,8 @@ sub logger($@) {
     return unless @_ and defined $self->{'logger-fd'};
     my $prefix = '';
     if ($self->{'logger-fd'}->fileno != fileno STDERR) {
-        $prefix = strftime "%b %e %H:%M:%S ", localtime;
+        my ($s, $us) = Time::HiRes::gettimeofday();
+        $prefix = POSIX::strftime("%b %e %H:%M:%S", localtime($s)).".$us ";
     }
     $prefix .= defined "$self->{name}" ? $self->{name} : '';
     $prefix .= "($self->{_SELECTED})" if $self->{_STATE} eq 'SELECTED';
-- 
2.39.2