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authorArch Librarian <arch@canonical.com>2004-09-20 16:50:57 +0000
committerArch Librarian <arch@canonical.com>2004-09-20 16:50:57 +0000
commit6f27a7fc6c8471534c5cee39cffdc2def1388bdc (patch)
treebcf6145945cff4c721ffc1f9256bffe43e965069 /apt-pkg/contrib
parenta246f2dc8c6084d857edb2792ce6b37c794e3d69 (diff)
Sync
Author: jgg Date: 1998-09-12 02:46:25 GMT Sync
Diffstat (limited to 'apt-pkg/contrib')
-rw-r--r--apt-pkg/contrib/error.cc37
-rw-r--r--apt-pkg/contrib/error.h8
2 files changed, 38 insertions, 7 deletions
diff --git a/apt-pkg/contrib/error.cc b/apt-pkg/contrib/error.cc
index d31aaf1b1..42e01e9fe 100644
--- a/apt-pkg/contrib/error.cc
+++ b/apt-pkg/contrib/error.cc
@@ -1,6 +1,6 @@
// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: error.cc,v 1.3 1998/07/12 23:58:46 jgg Exp $
+// $Id: error.cc,v 1.4 1998/09/12 02:46:26 jgg Exp $
/* ######################################################################
Global Erorr Class - Global error mechanism
@@ -18,15 +18,46 @@
#pragma implementation "apt-pkg/error.h"
#endif
+#include <apt-pkg/error.h>
+
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
+#include <unistd.h>
-#include <apt-pkg/error.h>
/*}}}*/
-GlobalError *_error = new GlobalError;
+// Global Error Object /*{{{*/
+/* If the implementation supports posix threads then the accessor function
+ is compiled to be thread safe otherwise a non-safe version is used. A
+ Per-Thread error object is maintained in much the same manner as libc
+ manages errno */
+#if _POSIX_THREADS == 1
+ #include <pthread.h>
+
+ static pthread_key_t ErrorKey;
+ static void ErrorDestroy(void *Obj) {delete (GlobalError *)Obj;};
+ static void KeyAlloc() {pthread_key_create(&ErrorKey,ErrorDestroy);};
+
+ GlobalError *_GetErrorObj()
+ {
+ static pthread_once_t Once = PTHREAD_ONCE_INIT;
+ pthread_once(&Once,KeyAlloc);
+
+ void *Res = pthread_getspecific(ErrorKey);
+ if (Res == 0)
+ pthread_setspecific(ErrorKey,Res = new GlobalError);
+ return (GlobalError *)Res;
+ }
+#else
+ GlobalError *_GetErrorObj()
+ {
+ static GlobalError *Obj = new GlobalError;
+ return Obj;
+ }
+#endif
+ /*}}}*/
// GlobalError::GlobalError - Constructor /*{{{*/
// ---------------------------------------------------------------------
diff --git a/apt-pkg/contrib/error.h b/apt-pkg/contrib/error.h
index 5d015c417..7250bb1c0 100644
--- a/apt-pkg/contrib/error.h
+++ b/apt-pkg/contrib/error.h
@@ -1,6 +1,6 @@
// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: error.h,v 1.3 1998/07/12 23:58:47 jgg Exp $
+// $Id: error.h,v 1.4 1998/09/12 02:46:27 jgg Exp $
/* ######################################################################
Global Erorr Class - Global error mechanism
@@ -82,8 +82,8 @@ class GlobalError
GlobalError();
};
-/* The 'extra-ansi' syntax is used to help with collisions. This is the
- single global instance of this class. */
-extern GlobalError *_error;
+// The 'extra-ansi' syntax is used to help with collisions.
+GlobalError *_GetErrorObj();
+#define _error _GetErrorObj()
#endif