Contiki 2.6

log.c

00001 /*
00002  * Copyright (c) 2006, Swedish Institute of Computer Science.
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  * 3. Neither the name of the Institute nor the names of its contributors
00014  *    may be used to endorse or promote products derived from this software
00015  *    without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
00018  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
00021  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00023  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00024  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00025  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00026  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00027  * SUCH DAMAGE.
00028  *
00029  * $Id: log.c,v 1.8 2010/01/25 12:34:05 fros4943 Exp $
00030  */
00031 
00032 #include <stdio.h>
00033 #include <stdarg.h>
00034 #include <string.h>
00035 #include "sys/log.h"
00036 #include "lib/simEnvChange.h"
00037 
00038 #define IMPLEMENT_PRINTF 1
00039 
00040 #if WITH_UIP
00041 /* uIP packets via SLIP */
00042 #include "uip.h"
00043 #define MAX_LOG_LENGTH (2*UIP_BUFSIZE)
00044 #else /* WITH_UIP */
00045 #define MAX_LOG_LENGTH 1024
00046 #endif /* WITH_UIP */
00047 
00048 #if MAX_LOG_LENGTH < 1024
00049 #undef MAX_LOG_LENGTH
00050 #define MAX_LOG_LENGTH 1024
00051 #endif /* MAX_LOG_LENGTH < 1024 */
00052 
00053 
00054 const struct simInterface simlog_interface;
00055 
00056 /* Variables shared between COOJA and Contiki */
00057 char simLoggedData[MAX_LOG_LENGTH];
00058 int simLoggedLength;
00059 char simLoggedFlag;
00060 
00061 /*-----------------------------------------------------------------------------------*/
00062 void
00063 simlog_char(char c)
00064 {
00065   if (simLoggedLength + 1 > MAX_LOG_LENGTH) {
00066     /* Dropping message due to buffer overflow */
00067     return;
00068   }
00069 
00070   simLoggedData[simLoggedLength] = c;
00071   simLoggedLength += 1;
00072   simLoggedFlag = 1;
00073 }
00074 /*-----------------------------------------------------------------------------------*/
00075 void
00076 simlog(const char *message)
00077 {
00078   if (simLoggedLength + strlen(message) > MAX_LOG_LENGTH) {
00079     /* Dropping message due to buffer overflow */
00080     return;
00081   }
00082 
00083   memcpy(simLoggedData + simLoggedLength, message, strlen(message));
00084   simLoggedLength += strlen(message);
00085   simLoggedFlag = 1;
00086 }
00087 /*-----------------------------------------------------------------------------------*/
00088 void
00089 log_message(const char *part1, const char *part2)
00090 {
00091   simlog(part1);
00092   simlog(part2);
00093 }
00094 /*-----------------------------------------------------------------------------------*/
00095 static void
00096 doInterfaceActionsBeforeTick(void)
00097 {
00098 }
00099 /*-----------------------------------------------------------------------------------*/
00100 static void
00101 doInterfaceActionsAfterTick(void)
00102 {
00103 }
00104 /*-----------------------------------------------------------------------------------*/
00105 #if IMPLEMENT_PRINTF
00106 int
00107 putchar(int c)
00108 {
00109   simlog_char(c);
00110   return c;
00111 }
00112 /*-----------------------------------------------------------------------------------*/
00113 int
00114 puts(const char* s)
00115 {
00116   simlog(s);
00117   simlog_char('\n');
00118   return 0;
00119 }
00120 /*-----------------------------------------------------------------------------------*/
00121 int
00122 printf(const char *fmt, ...)
00123 {
00124   int res;
00125   static char buf[MAX_LOG_LENGTH];
00126   va_list ap;
00127   va_start(ap, fmt);
00128   res = vsnprintf(buf, MAX_LOG_LENGTH, fmt, ap);
00129   va_end(ap);
00130 
00131   simlog(buf);
00132   return res;
00133 }
00134 #endif /* IMPLEMENT_PRINTF */
00135 /*-----------------------------------------------------------------------------------*/
00136 
00137 SIM_INTERFACE(simlog_interface,
00138           doInterfaceActionsBeforeTick,
00139           doInterfaceActionsAfterTick);