From 8e201d18a88d4cf4ca1163c32bdc2400c28ead8d Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Thu, 23 Dec 2010 14:23:31 +0000
Subject: a few more EPA tweaks (from 2.X)

git-svn-id: svn://localhost/ardour2/branches/3.0@8340 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/pbd/epa.cc | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

(limited to 'libs/pbd/epa.cc')

diff --git a/libs/pbd/epa.cc b/libs/pbd/epa.cc
index 71387b4c23..8665823d77 100644
--- a/libs/pbd/epa.cc
+++ b/libs/pbd/epa.cc
@@ -29,14 +29,25 @@ using namespace std;
 
 EnvironmentalProtectionAgency* EnvironmentalProtectionAgency::_global_epa = 0;
 
-EnvironmentalProtectionAgency::EnvironmentalProtectionAgency ()
+EnvironmentalProtectionAgency::EnvironmentalProtectionAgency (bool arm)
+        : _armed (arm)
 {
-        save ();
+        if (_armed) {
+                save ();
+        }
 }
 
 EnvironmentalProtectionAgency::~EnvironmentalProtectionAgency()
 {
-        restore ();
+        if (_armed) {
+                restore ();
+        }
+}
+
+void
+EnvironmentalProtectionAgency::arm ()
+{
+        _armed = true;
 }
 
 void
@@ -63,9 +74,9 @@ EnvironmentalProtectionAgency::save ()
         }
 }                         
 void
-EnvironmentalProtectionAgency::restore ()
+EnvironmentalProtectionAgency::restore () const
 {
-        for (map<string,string>::iterator i = e.begin(); i != e.end(); ++i) {
+        for (map<string,string>::const_iterator i = e.begin(); i != e.end(); ++i) {
                 cerr << "Restore [" << i->first << "] = " << i->second << endl;
                 setenv (i->first.c_str(), i->second.c_str(), 1);
         }
-- 
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