* @brief A very simple logging class.
*/
-#include <time.h>
-#include <cstdio>
-#include <boost/algorithm/string.hpp>
#include "log.h"
#include "cross.h"
#include "config.h"
+#include "safe_stringstream.h"
+#include <time.h>
+#include <cstdio>
#include "i18n.h"
using namespace std;
-using boost::algorithm::is_any_of;
-using boost::algorithm::split;
-int const Log::GENERAL = 0x1;
-int const Log::WARNING = 0x2;
-int const Log::ERROR = 0x4;
-int const Log::TIMING = 0x8;
+int const Log::TYPE_GENERAL = 0x1;
+int const Log::TYPE_WARNING = 0x2;
+int const Log::TYPE_ERROR = 0x4;
+int const Log::TYPE_DEBUG = 0x8;
+int const Log::TYPE_TIMING = 0x10;
Log::Log ()
: _types (0)
{
- Config::instance()->Changed.connect (boost::bind (&Log::config_changed, this));
+ _config_connection = Config::instance()->Changed.connect (boost::bind (&Log::config_changed, this));
config_changed ();
}
time (&t);
string a = ctime (&t);
- stringstream s;
+ SafeStringStream s;
s << a.substr (0, a.length() - 1) << N_(": ");
- if (type & ERROR) {
+ if (type & TYPE_ERROR) {
s << "ERROR: ";
}
- if (type & WARNING) {
+ if (type & TYPE_WARNING) {
s << "WARNING: ";
}
struct timeval tv;
gettimeofday (&tv, 0);
- stringstream s;
+ SafeStringStream s;
s << tv.tv_sec << N_(":") << tv.tv_usec << N_(" ") << m;
do_log (s.str ());
}
_types = t;
}
-/** @param A comma-separate list of debug types to enable */
-void
-Log::set_types (string t)
-{
- boost::mutex::scoped_lock lm (_mutex);
-
- vector<string> types;
- split (types, t, is_any_of (","));
-
- _types = 0;
-
- for (vector<string>::const_iterator i = types.begin(); i != types.end(); ++i) {
- if (*i == N_("general")) {
- _types |= GENERAL;
- } else if (*i == N_("warning")) {
- _types |= WARNING;
- } else if (*i == N_("error")) {
- _types |= ERROR;
- } else if (*i == N_("timing")) {
- _types |= TIMING;
- }
- }
-}
-
/** @param file Filename to write log to */
FileLog::FileLog (boost::filesystem::path file)
: _file (file)
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;
+}