Base revisions

Author: jgg
Date: 1998-07-02 02:58:12 GMT
Base revisions

1 files changed, 139 insertions, 0 deletions

diff --git a/apt-pkg/contrib/error.cc b/apt-pkg/contrib/error.cc
new file mode 100644
index 000000000..59d2b8c8b
--- /dev/null
+++ b/apt-pkg/contrib/error.cc
@@ -0,0 +1,139 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+// $Id: error.cc,v 1.1 1998/07/02 02:58:13 jgg Exp $
+/* ######################################################################
+   
+   Global Erorr Class - Global error mechanism
+
+   We use a simple STL vector to store each error record. A PendingFlag
+   is kept which indicates when the vector contains a Sever error.
+   
+   This source is placed in the Public Domain, do with it what you will
+   It was originally written by Jason Gunthorpe.
+   
+   ##################################################################### */
+									/*}}}*/
+// Include Files							/*{{{*/
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+
+#include <pkglib/error.h>
+   									/*}}}*/
+
+GlobalError *_error = new GlobalError;
+
+// GlobalError::GlobalError - Constructor				/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+GlobalError::GlobalError() : PendingFlag(false)
+{
+}
+									/*}}}*/
+// GlobalError::Errno - Get part of the error string from errno		/*{{{*/
+// ---------------------------------------------------------------------
+/* Function indicates the stdlib function that failed and Description is
+   a user string that leads the text. Form is:
+     Description - Function (errno: strerror)
+   Carefull of the buffer overrun, sprintf.
+ */
+bool GlobalError::Errno(const char *Function,const char *Description,...)
+{
+   va_list args;
+   va_start(args,Description);
+
+   // sprintf the description
+   char S[400];
+   vsprintf(S,Description,args);
+   sprintf(S + strlen(S)," - %s (%i %s)",Function,errno,strerror(errno));
+
+   // Put it on the list
+   Item Itm;
+   Itm.Text = S;
+   Itm.Error = true;
+   List.push_back(Itm);
+   
+   PendingFlag = true;
+
+   return false;   
+}
+									/*}}}*/
+// GlobalError::Error - Add an error to the list			/*{{{*/
+// ---------------------------------------------------------------------
+/* Just vsprintfs and pushes */
+bool GlobalError::Error(const char *Description,...)
+{
+   va_list args;
+   va_start(args,Description);
+
+   // sprintf the description
+   char S[400];
+   vsprintf(S,Description,args);
+
+   // Put it on the list
+   Item Itm;
+   Itm.Text = S;
+   Itm.Error = true;
+   List.push_back(Itm);
+   
+   PendingFlag = true;
+   
+   return false;
+}
+									/*}}}*/
+// GlobalError::Warning - Add a warning to the list			/*{{{*/
+// ---------------------------------------------------------------------
+/* This doesn't set the pending error flag */
+bool GlobalError::Warning(const char *Description,...)
+{
+   va_list args;
+   va_start(args,Description);
+
+   // sprintf the description
+   char S[400];
+   vsprintf(S,Description,args);
+
+   // Put it on the list
+   Item Itm;
+   Itm.Text = S;
+   Itm.Error = false;
+   List.push_back(Itm);
+   
+   return false;
+}
+									/*}}}*/
+// GlobalError::PopMessage - Pulls a single message out			/*{{{*/
+// ---------------------------------------------------------------------
+/* This should be used in a loop checking empty() each cycle. It returns
+   true if the message is an error. */
+bool GlobalError::PopMessage(string &Text)
+{
+   bool Ret = List.front().Error;
+   Text = List.front().Text;
+   List.erase(List.begin());
+
+   // This really should check the list to see if only warnings are left..
+   if (empty())
+      PendingFlag = false;
+   
+   return Ret;
+}
+									/*}}}*/
+// GlobalError::DumpErrors - Dump all of the errors/warns to cerr	/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void GlobalError::DumpErrors()
+{
+   // Print any errors or warnings found
+   string Err;
+   while (empty() == false)
+   {
+      bool Type = PopMessage(Err);
+      if (Type == true)
+	 cerr << "E: " << Err << endl;
+      else
+	 cerr << "W: " << Err << endl;
+   }
+}
+									/*}}}*/