-/*
- * YAFFS: Yet another FFS. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2010 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Timothy Manning <timothy@yaffs.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * message_buffer.c contains code for a message buffer .
- */
-
-#include "message_buffer.h"
-
-void append_to_buffer(buffer *p_Buffer, char *message,char message_level,char print){
- /*wrapper function for add_to_buffer_root_function*/
- add_to_buffer_root_function(p_Buffer,message, message_level,APPEND_MESSAGE,print);
-}
-
-void add_to_buffer(buffer *p_Buffer, char *message,char message_level,char print){
- /*wrapper function for add_to_buffer_root_function*/
- add_to_buffer_root_function(p_Buffer,message, message_level,DO_NOT_APPEND_MESSAGE,print);
-}
-
-void add_int_to_buffer(buffer *p_Buffer, int num,char message_level,char print){
- char message[20];
- sprintf(message, "%d",num);
- add_to_buffer_root_function(p_Buffer,message, message_level,DO_NOT_APPEND_MESSAGE,print);
-}
-
-void append_int_to_buffer(buffer *p_Buffer, int num,char message_level,char print){
- char message[20];
- sprintf(message, "%d",num);
- add_to_buffer_root_function(p_Buffer,message, message_level,APPEND_MESSAGE,print);
-}
-
-
-void add_to_buffer_root_function(buffer *p_Buffer, char *message,char message_level,char append,char print){
- FILE *log_handle;
-
- if (append==APPEND_MESSAGE){ /* append current message*/
- strncat(p_Buffer->message[p_Buffer->head],message,BUFFER_MESSAGE_LENGTH);
- }
- else {
-
- /*move the head up one. the head always points at the last written data*/
- p_Buffer->head++;
-
- /*printf("p_Buffer->tail=%d\n",p_Buffer->tail);*/
- /*printf("p_Buffer->head=%d\n",p_Buffer->head);*/
- if (p_Buffer->head >=BUFFER_SIZE-1) {
- /*printf("buffer overflow\n");*/
- p_Buffer->head -= (BUFFER_SIZE-1); /*wrap the head around the buffer*/
- /*printf("new p_Buffer->head=%d\n",p_Buffer->head);*/
- }
- /*if the buffer is full then delete last entry by moving the tail*/
- if (p_Buffer->head==p_Buffer->tail){
- /*printf("moving buffer tail from %d to ",p_Buffer->tail);*/
- p_Buffer->tail++;
- if (p_Buffer->tail >=BUFFER_SIZE) p_Buffer->tail -= BUFFER_SIZE;/*wrap the tail around the buffer*/
- /*printf("%d\n",p_Buffer->tail);*/
-
- }
-
- p_Buffer->message_level[p_Buffer->head]=message_level; /*copy the message level*/
- strncpy(p_Buffer->message[p_Buffer->head],message,BUFFER_MESSAGE_LENGTH); /*copy the message*/
- /*printf("copied %s into p_Buffer->message[p_Buffer->head]: %s\n",message,p_Buffer->message[p_Buffer->head]);
- printf("extra %s\n",p_Buffer->message[p_Buffer->head]);*/
- }
- if ((p_Buffer->message_level[p_Buffer->head]<=DEBUG_LEVEL)&& (print==PRINT)){
- /*printf("printing buffer 1\n");
- // the print buffer function is not working this is just a quick fix
- print_buffer(p_Buffer,1); //if the debug level is higher enough then print the new message
- */
- printf("%s\n",p_Buffer->message[p_Buffer->head]);
- log_handle=fopen(LOG_FILE,"a");
- if (log_handle!=NULL){
- fputs(p_Buffer->message[p_Buffer->head],log_handle);
- fputs("\n",log_handle);
- fclose(log_handle);
- }
- }
-}
-
-
-
-void print_buffer(buffer *p_Buffer, int number_of_messages_to_print){
- int x=0;
- int i=0;
- printf("print buffer\n");
- printf("buffer head:%d\n",p_Buffer->head);
- printf("buffer tail:%d\n",p_Buffer->tail);
-
- if (number_of_messages_to_print==PRINT_ALL) number_of_messages_to_print=BUFFER_SIZE;
-// printf("number_of_messages_to_print=%d\n",number_of_messages_to_print);
- for (i=0,x=0; (x>=p_Buffer->tail) && (i<number_of_messages_to_print); i++, x--){
-// printf("printing buffer\n");
-// printf("x:%d\n",x);
- if (x<0) x = BUFFER_SIZE-1; /*wrap x around buffer*/
- printf("%s\n",p_Buffer->message[p_Buffer->head]);
- printf("printed buffer\n");
- }
-
-}
-
-
-