First commit of basic collection API.

1 files changed, 87 insertions, 0 deletions

diff --git a/common/trace/trace.h b/common/trace/trace.h
new file mode 100644
index 000000000..58c979361
--- /dev/null
+++ b/common/trace/trace.h
@@ -0,0 +1,87 @@
+/*
+    COMMON TRACE
+
+    Common header file for tracing.
+
+    Copyright (C) Dmitri Pal <dpal@redhat.com> 2009
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef COMMON_TRACE_H
+#define COMMON_TRACE_H
+
+#ifdef TRACE_LEVEL
+#define HAVE_TRACE
+#include <stdio.h>
+
+/* The trace level is a bit mask */
+#define TRACE_FLOW      0x0000001  /* - trace messages that are entry exit into functions */
+#define TRACE_ERROR     0x0000002  /* - trace messages that are errors */
+#define TRACE_INFO      0x0000004  /* - trace things that are informational */
+
+
+#ifdef TRACE_HOME           /* Define this in the module that contains main */
+unsigned trace_level = TRACE_LEVEL;
+#else
+extern unsigned trace_level;
+#endif /* TRACE_HOME */
+#endif /* TRACE_LEVEL */
+
+
+
+#ifdef HAVE_TRACE
+/* Tracing strings */
+#define TRACE_STRING(level,message,str)     if(level & trace_level) \
+                                            printf("[DEBUG] %23s (%4d) %s %s\n",__FILE__,__LINE__,message,str);
+/* Convenience wrappers for strings */
+#define TRACE_FLOW_STRING(message,str)      TRACE_STRING(TRACE_FLOW,message,str)
+#define TRACE_ERROR_STRING(message,str)     TRACE_STRING(TRACE_ERROR,message,str)
+#define TRACE_INFO_STRING(message,str)      TRACE_STRING(TRACE_INFO,message,str)
+
+/* Tracing numbers */
+#define TRACE_NUMBER(level,message,number)  if(level & trace_level) \
+                                            printf("[DEBUG] %23s (%4d) %s %lu\n",__FILE__,__LINE__,message,(unsigned long int)(number));
+/* Convenience wrappers for numbers */
+#define TRACE_FLOW_NUMBER(message,number)   TRACE_NUMBER(TRACE_FLOW,message,number)
+#define TRACE_ERROR_NUMBER(message,number)  TRACE_NUMBER(TRACE_ERROR,message,number)
+#define TRACE_INFO_NUMBER(message,number)   TRACE_NUMBER(TRACE_INFO,message,number)
+
+/* Tracing doubles */
+#define TRACE_DOUBLE(level,message,number)  if(level & trace_level) \
+                                            printf("[DEBUG] %23s (%4d) %s %e\n",__FILE__,__LINE__,message,(double)(number));
+/* Convenience wrappers for numbers */
+#define TRACE_FLOW_DOUBLE(message,number)   TRACE_DOUBLE(TRACE_FLOW,message,number)
+#define TRACE_ERROR_DOUBLE(message,number)  TRACE_DOUBLE(TRACE_ERROR,message,number)
+#define TRACE_INFO_DOUBLE(message,number)   TRACE_DOUBLE(TRACE_INFO,message,number)
+
+/* Assertion */
+#define TRACE_ASSERT(expression)             expression ? ; : printf("ASSERTION FAILED\n");
+#else
+/* Noop in case the tracing is disabled */
+#define TRACE_STRING(level,message,str)     ;
+#define TRACE_NUMBER(level,message,number)  ;
+#define TRACE_DOUBLE(level,message,number)  ;
+#define TRACE_FLOW_STRING(message,str)      ;
+#define TRACE_ERROR_STRING(message,str)     ;
+#define TRACE_INFO_STRING(message,str)      ;
+#define TRACE_FLOW_NUMBER(message,str)      ;
+#define TRACE_ERROR_NUMBER(message,str)     ;
+#define TRACE_INFO_NUMBER(message,str)      ;
+#define TRACE_FLOW_DOUBLE(message,str)      ;
+#define TRACE_ERROR_DOUBLE(message,str)     ;
+#define TRACE_INFO_DOUBLE(message,str)      ;
+#define TRACE_ASSERT(expression)            ;
+#endif /* HAVE_TRACE */
+
+
+#endif /* COMMON_TRACE_H */