No-op: remove all trailing whitespace.

[dcpomatic.git] / src / lib / log.cc

diff --git a/src/lib/log.cc b/src/lib/log.cc
index 9ddf460d43ccc1c382270e607a7634a66be09049..42184ec4582662bf09d21896f4332d9ab6bae24b 100644 (file)
--- a/src/lib/log.cc
+++ b/src/lib/log.cc
@@ -21,28 +21,43 @@
  *  @brief A very simple logging class.
  */
 
-#include <time.h>
-#include <cstdio>
 #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_DEBUG   = 0x8;
+int const Log::TYPE_TIMING  = 0x10;
+
 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;
        }
 
@@ -50,47 +65,59 @@ Log::log (string m, Level l)
        time (&t);
        string a = ctime (&t);
 
-       stringstream s;
-       s << a.substr (0, a.length() - 1) << N_(": ") << 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;
+       SafeStringStream s;
        s << tv.tv_sec << N_(":") << tv.tv_usec << N_(" ") << m;
        do_log (s.str ());
-}      
+}
 
 void
-Log::set_level (Level l)
+Log::dcp_log (dcp::NoteType type, string m)
 {
-       boost::mutex::scoped_lock lm (_mutex);
-       _level = l;
+       switch (type) {
+       case dcp::DCP_PROGRESS:
+               log (m, TYPE_GENERAL);
+               break;
+       case dcp::DCP_ERROR:
+               log (m, TYPE_ERROR);
+               break;
+       case dcp::DCP_NOTE:
+               log (m, TYPE_WARNING);
+               break;
+       }
 }
 
 void
-Log::set_level (string l)
+Log::set_types (int t)
 {
-       if (l == N_("verbose")) {
-               set_level (VERBOSE);
-               return;
-       } else if (l == N_("timing")) {
-               set_level (TIMING);
-               return;
-       }
-
-       set_level (STANDARD);
+       boost::mutex::scoped_lock lm (_mutex);
+       _types = t;
 }
 
 /** @param file Filename to write log to */
@@ -104,7 +131,54 @@ void
 FileLog::do_log (string m)
 {
        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;
+}