1 files changed, 134 insertions, 0 deletions
diff --git a/services/logging.h b/services/logging.h
new file mode 100644
index 0000000..5dd04ad
--- /dev/null
+++ b/services/logging.h
@@ -0,0 +1,134 @@
+/*
+    This file is part of Icecream.
+
+    Copyright (c) 2004 Stephan Kulow <coolo@suse.de>
+
+    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 2 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, write to the Free Software
+    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+*/
+
+#ifndef _LOGGING_H
+#define _LOGGING_H
+
+#include <sys/time.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string>
+#include <iostream>
+#include <cassert>
+#include <cstring>
+
+enum DebugLevels { Info = 1, Warning = 2, Error = 4, Debug = 8};
+extern std::ostream *logfile_info;
+extern std::ostream *logfile_warning;
+extern std::ostream *logfile_error;
+extern std::ostream *logfile_trace;
+extern std::string logfile_prefix;
+
+void setup_debug(int level, const std::string &logfile = "", const std::string& prefix="");
+void reset_debug(int);
+void close_debug();
+void flush_debug();
+
+static inline std::ostream & output_date( std::ostream &os )
+{
+    time_t t = time( 0 );
+    struct tm* tmp = localtime(&t);
+    char buf[64];
+    strftime(buf, sizeof(buf), "%T: ", tmp);
+    if (logfile_prefix.size())
+        os << logfile_prefix;
+    os << "[" << getpid() << "] ";
+
+    os << buf;
+    return os;
+}
+
+static inline std::ostream& log_info() {
+    if(!logfile_info) return std::cerr;
+    return output_date( *logfile_info);
+}
+
+static inline std::ostream& log_warning() {
+    if(!logfile_warning) return std::cerr;
+    return output_date( *logfile_warning );
+}
+
+
+static inline std::ostream& log_error() {
+    if(!logfile_error) return std::cerr;
+    return output_date( *logfile_error );
+}
+
+static inline std::ostream& trace() {
+    if(!logfile_trace) return std::cerr;
+    return output_date( *logfile_trace);
+}
+
+std::string get_backtrace();
+static inline void log_perror(const char *prefix) {
+    int tmp_errno = errno;
+    log_error() << prefix << " " << strerror( tmp_errno ) << std::endl;
+}
+
+class log_block 
+{
+    static unsigned nesting;
+    timeval m_start;
+    char* m_label;
+public:
+    log_block(const char* label =0)
+    {
+#ifndef NDEBUG
+        for (unsigned i = 0; i < nesting; ++i) 
+            log_info() << "  "; 
+
+        log_info() << "<" << (label ? label : "") << ">\n";
+
+        m_label = strdup(label ? label : "");
+        ++nesting;
+        gettimeofday( &m_start, 0);
+#endif
+    }
+
+    ~log_block()
+    {
+#ifndef NDEBUG
+        timeval end;
+        gettimeofday (&end, 0);
+
+        --nesting;
+        for (unsigned i = 0; i < nesting; ++i) 
+            log_info() << "  "; 
+        log_info() << "</" << m_label << ": "
+            << (end.tv_sec - m_start.tv_sec ) * 1000 + ( end.tv_usec - m_start.tv_usec ) / 1000 << "ms>\n";
+
+        free(m_label);
+#endif
+    }
+};
+
+#include <sstream>
+#include <iostream>
+
+template<class T>
+std::string toString(const T& val)
+{
+    std::ostringstream os;
+    os << val;
+    return os.str();
+}
+
+#endif