Made the Error object thread safe.

1 files changed, 15 insertions, 1 deletions

diff --git a/src/error.cc b/src/error.cc
index b166042..4e3f045 100644
--- a/src/error.cc
+++ b/src/error.cc
@@ -30,12 +30,21 @@ Error::Error()
 {
   // Initialize
   lastError = NULL;
+
+  pthread_mutex_init (&mutex, NULL);
 }
 
 Error::~Error()
 {
 }
 
+/*
+      pthread_mutex_lock(&mutex);
+      // ... do something
+      pthread_mutex_unlock(&mutex);
+
+ */
+
 bool Error::hasError()
 {
   return lastError != NULL;
@@ -52,17 +61,20 @@ string Error::popAllErrorStrings()
 
 string Error::popErrorString()
 {
+  pthread_mutex_lock(&mutex);
   if(lastError == NULL) return string("");
 
   _err_entry *err = lastError;
   string le = err->errstr;
   lastError = err->prev;
   delete err;
+  pthread_mutex_unlock(&mutex);
   return le;
 }
 
 void Error::pushError(char* errstr)
 {
+  pthread_mutex_lock(&mutex);
   printf("New Error: [%s]\n", errstr);
 
   _err_entry *err = new _err_entry;
@@ -70,19 +82,21 @@ void Error::pushError(char* errstr)
   err->errstr = errstr;
   err->prev = lastError;
   lastError = err;
+  pthread_mutex_unlock(&mutex);
 }
 
 void Error::pushError(string &errstr)
 {
+  pthread_mutex_lock(&mutex);
   _err_entry *err = new _err_entry;
 
   err->errstr = errstr;
   err->prev = lastError;
   lastError = err;
+  pthread_mutex_unlock(&mutex);
 }
 
 void Error::removeAllErrors()
 {
   while(lastError) popErrorString();
-  
 }