* @brief A very simple logging class.
*/
-#include <fstream>
-#include <time.h>
#include "log.h"
+#include "cross.h"
+#include "config.h"
+#include "safe_stringstream.h"
+#include <time.h>
+#include <cstdio>
+
+#include "i18n.h"
using namespace std;
+int const Log::TYPE_GENERAL = 0x1;
+int const Log::TYPE_WARNING = 0x2;
+int const Log::TYPE_ERROR = 0x4;
+int const Log::TYPE_TIMING = 0x8;
+
Log::Log ()
- : _level (STANDARD)
+ : _types (0)
{
+ _config_connection = Config::instance()->Changed.connect (boost::bind (&Log::config_changed, this));
+ config_changed ();
+}
+void
+Log::config_changed ()
+{
+ set_types (Config::instance()->log_types ());
}
/** @param n String to log */
void
-Log::log (string m, Level l)
+Log::log (string message, int type)
{
boost::mutex::scoped_lock lm (_mutex);
- if (l > _level) {
+ if ((_types & type) == 0) {
return;
}
time (&t);
string a = ctime (&t);
- stringstream s;
- s << a.substr (0, a.length() - 1) << ": " << m;
+ SafeStringStream s;
+ s << a.substr (0, a.length() - 1) << N_(": ");
+
+ if (type & TYPE_ERROR) {
+ s << "ERROR: ";
+ }
+
+ if (type & TYPE_WARNING) {
+ s << "WARNING: ";
+ }
+
+ s << message;
do_log (s.str ());
}
void
-Log::microsecond_log (string m, Level l)
+Log::microsecond_log (string m, int t)
{
boost::mutex::scoped_lock lm (_mutex);
- if (l > _level) {
+ if ((_types & t) == 0) {
return;
}
struct timeval tv;
gettimeofday (&tv, 0);
- stringstream s;
- s << tv.tv_sec << ":" << tv.tv_usec << " " << m;
+ SafeStringStream s;
+ s << tv.tv_sec << N_(":") << tv.tv_usec << N_(" ") << m;
do_log (s.str ());
}
void
-Log::set_level (Level l)
+Log::set_types (int t)
{
boost::mutex::scoped_lock lm (_mutex);
- _level = l;
-}
-
-void
-Log::set_level (string l)
-{
- if (l == "verbose") {
- set_level (VERBOSE);
- return;
- } else if (l == "timing") {
- set_level (TIMING);
- return;
- }
-
- set_level (STANDARD);
+ _types = t;
}
/** @param file Filename to write log to */
-FileLog::FileLog (string file)
+FileLog::FileLog (boost::filesystem::path file)
: _file (file)
{
void
FileLog::do_log (string m)
{
- ofstream f (_file.c_str(), fstream::app);
- f << m << "\n";
+ FILE* f = fopen_boost (_file, "a");
+ if (!f) {
+ cout << "(could not log to " << _file.string() << "): " << m << "\n";
+ return;
+ }
+
+ fprintf (f, "%s\n", m.c_str ());
+ fclose (f);
}
+string
+FileLog::head_and_tail (int amount) const
+{
+ boost::mutex::scoped_lock lm (_mutex);
+
+ uintmax_t head_amount = amount;
+ uintmax_t tail_amount = amount;
+ uintmax_t size = boost::filesystem::file_size (_file);
+
+ if (size < (head_amount + tail_amount)) {
+ head_amount = size;
+ tail_amount = 0;
+ }
+
+ FILE* f = fopen_boost (_file, "r");
+ if (!f) {
+ return "";
+ }
+
+ string out;
+
+ char* buffer = new char[max(head_amount, tail_amount) + 1];
+
+ int N = fread (buffer, 1, head_amount, f);
+ buffer[N] = '\0';
+ out += string (buffer);
+
+ if (tail_amount > 0) {
+ out += "\n .\n .\n .\n";
+
+ fseek (f, - tail_amount - 1, SEEK_END);
+
+ N = fread (buffer, 1, tail_amount, f);
+ buffer[N] = '\0';
+ out += string (buffer) + "\n";
+ }
+
+ delete[] buffer;
+ fclose (f);
+
+ return out;
+}