yaffs trying to recreate timothy_tests after I deleated them.

[yaffs2.git] / direct / timothy_tests / dev / message_buffer.c

diff --git a/direct/timothy_tests/dev/message_buffer.c b/direct/timothy_tests/dev/message_buffer.c
new file mode 100644 (file)
index 0000000..1ff21e0
--- /dev/null
+++ b/direct/timothy_tests/dev/message_buffer.c
@@ -0,0 +1,112 @@
+/*
+ * 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");
+       }
+
+}
+
+
+