optimize gettimeofday

3 files changed, 6 insertions, 7 deletions

diff --git a/src/library.js b/src/library.js
index 74ebdc07..acbda42b 100644
--- a/src/library.js
+++ b/src/library.js
@@ -5983,14 +5983,13 @@ LibraryManager.library = {
     return 0;
   },
 
-  // TODO: Implement remaining functions.
   // http://pubs.opengroup.org/onlinepubs/000095399/basedefs/sys/time.h.html
   gettimeofday: function(ptr) {
     // %struct.timeval = type { i32, i32 }
-    var indexes = Runtime.calculateStructAlignment({ fields: ['i32', 'i32'] });
+    {{{ (LibraryManager.structs.gettimeofday = Runtime.calculateStructAlignment({ fields: ['i32', 'i32'] }), null) }}}
     var now = Date.now();
-    {{{ makeSetValue('ptr', 'indexes[0]', 'Math.floor(now/1000)', 'i32') }}} // seconds
-    {{{ makeSetValue('ptr', 'indexes[1]', 'Math.floor((now-1000*Math.floor(now/1000))*1000)', 'i32') }}} // microseconds
+    {{{ makeSetValue('ptr', LibraryManager.structs.gettimeofday[0], 'Math.floor(now/1000)', 'i32') }}}; // seconds
+    {{{ makeSetValue('ptr', LibraryManager.structs.gettimeofday[1], 'Math.floor((now-1000*Math.floor(now/1000))*1000)', 'i32') }}}; // microseconds
     return 0;
   },
 
diff --git a/src/modules.js b/src/modules.js
index f33f302b..695abbe7 100644
--- a/src/modules.js
+++ b/src/modules.js
@@ -347,6 +347,7 @@ var Functions = {
 
 var LibraryManager = {
   library: null,
+  structs: {},
   loaded: false,
 
   load: function() {
diff --git a/src/parseTools.js b/src/parseTools.js
index 3410c4c9..f3ae7a22 100644
--- a/src/parseTools.js
+++ b/src/parseTools.js
@@ -6,11 +6,10 @@
 // Does simple 'macro' substitution, using Django-like syntax,
 // {{{ code }}} will be replaced with |eval(code)|.
 function processMacros(text) {
-  return text.replace(/{{{[^}]+}}}/g, function(str) {
+  return text.replace(/{{{([^}]|}(?!}))+}}}/g, function(str) {
     str = str.substr(3, str.length-6);
     var ret = eval(str);
-    if (ret !== undefined) ret = ret.toString();
-    return ret;
+    return ret ? ret.toString() : '';
   });
 }