Yeah many calls

1 files changed, 159 insertions, 0 deletions

diff --git a/toxcore/logger.c b/toxcore/logger.c
new file mode 100644
index 00000000..e700fe71
--- /dev/null
+++ b/toxcore/logger.c
@@ -0,0 +1,159 @@
+/*  logger.c
+ * 
+ *  Wrapping logger functions in nice macros
+ *
+ *  Copyright (C) 2013 Tox project All Rights Reserved.
+ *
+ *  This file is part of Tox.
+ *
+ *  Tox 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.
+ *
+ *  Tox 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 Tox.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+
+#include "logger.h"
+
+#ifdef LOGGING
+
+#include "network.h" /* for time */
+
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <time.h>
+
+#if defined(_WIN32) || defined(__WIN32__) || defined (WIN32)
+#define strerror_r(errno,buf,len) strerror_s(buf,len,errno)
+#endif
+
+static struct logger_config {
+    FILE* log_file;
+    LoggerLevel level;
+    uint64_t start_time; /* Time when lib loaded */
+} 
+logger = { 
+    NULL, 
+    DEBUG,
+    0
+};
+
+void __attribute__((destructor)) terminate_logger()
+{
+    if ( !logger.log_file ) return;
+    
+    time_t tim = time(NULL);
+    
+    logger_write(ERROR, "============== Closing logger ==============\n"
+                        "Time: %s", asctime(localtime(&tim)));
+    
+    fclose(logger.log_file);
+}
+
+unsigned logger_get_pid()
+{
+    return
+    #if defined(_WIN32) || defined(__WIN32__) || defined (WIN32)
+    GetCurrentProcessId();
+    #else
+    getpid();
+    #endif
+}
+
+const char* logger_stringify_level(LoggerLevel level)
+{
+    static const char* strings [] = 
+    {
+        "INFO",
+        "DEBUG",
+        "WARNING",
+        "ERROR"
+    };
+    
+    return strings[level];
+}
+
+
+int logger_init(const char* file_name, LoggerLevel level)
+{
+    char* final_l = calloc(sizeof(char), strlen(file_name) + 32);
+    sprintf(final_l, "%s"/*.%u"*/, file_name, logger_get_pid());
+    
+    if ( logger.log_file ) { 
+        fprintf(stderr, "Error opening logger name: %s with level %d: already opened!\n", final_l, level);
+        free (final_l);
+        return -1;
+    }
+    
+    logger.log_file = fopen(final_l, "wb");
+    
+    if ( logger.log_file == NULL ) {
+        char error[1000];
+        if ( strerror_r(errno, error, 1000) == 0 ) 
+            fprintf(stderr, "Error opening logger file: %s; info: %s\n", final_l, error);
+        else
+            fprintf(stderr, "Error opening logger file: %s\n", final_l);
+        
+        free (final_l);
+        return -1;
+    }
+    
+    
+    logger.level = level;
+    logger.start_time = current_time();
+    
+    
+    time_t tim = time(NULL);
+    logger_write(ERROR, "============== Starting logger ==============\n"
+                        "Time: %s", asctime(localtime(&tim)));
+    
+    
+    
+    free (final_l);
+    return 0;
+}
+
+
+void logger_write (LoggerLevel level, const char* format, ...)
+{    
+    if (logger.log_file == NULL) {
+        /*fprintf(stderr, "Logger file is NULL!\n");*/
+        return;
+    }
+    
+    if (logger.level > level) return; /* Don't print some levels xuh */
+        
+    va_list _arg;
+    va_start (_arg, format);
+    vfprintf (logger.log_file, format, _arg);
+    va_end (_arg);
+    
+    fflush(logger.log_file);
+}
+
+char* logger_timestr(char* dest)
+{
+    uint64_t diff = (current_time() - logger.start_time) / 1000; /* ms */
+    sprintf(dest, "%"PRIu64"", diff);
+    
+    return dest;
+}
+
+
+#endif /* LOGGING */
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