Remove any Heap Allocation

1 files changed, 30 insertions, 31 deletions

diff --git a/libraries/fifo.h b/libraries/fifo.h
index c56d410..700d2ec 100644
--- a/libraries/fifo.h
+++ b/libraries/fifo.h
@@ -1,30 +1,30 @@
 
 
-/* 
-    FIFO Ring Buffer uint8_t array ring_buffer (example length is 8) 
-       with data (x) and read and write index:
-
-     --- --- --- --- --- --- --- ---
-    |   |   | x | x | x |   |   |   |
-     --- --- --- --- --- --- --- ---
-              ^           ^
-              |           |
-          read_index      |
-                     write_index
-
-     --- --- --- --- --- --- --- ---
-    | x | x |   |   |   | x | x | x |
-     --- --- --- --- --- --- --- ---
-              ^           ^
-              |           |
-         write_index      |
-                      read_index
-
-    - input data goes to position of write_index
-    - output data comes from read_index position
-    - after input/output operation the according index has to be modified
-    - according to the idea of ring buffers the write_index could be 
-      smaller than the read_index
+/*
+	FIFO Ring Buffer uint8_t array ring_buffer (example length is 8) 
+	   with data (x) and read and write index:
+
+	 --- --- --- --- --- --- --- ---
+	|   |   | x | x | x |   |   |   |
+	 --- --- --- --- --- --- --- ---
+			  ^		   ^
+			  |		   |
+		  read_index	  |
+					 write_index
+
+	 --- --- --- --- --- --- --- ---
+	| x | x |   |   |   | x | x | x |
+	 --- --- --- --- --- --- --- ---
+			  ^		   ^
+			  |		   |
+		 write_index	  |
+					  read_index
+
+	- input data goes to position of write_index
+	- output data comes from read_index position
+	- after input/output operation the according index has to be modified
+	- according to the idea of ring buffers the write_index could be 
+	  smaller than the read_index
 */
 
 
@@ -37,15 +37,14 @@
 
 
 typedef struct FIFO{
-    uint8_t *buffer_ptr;
-    uint16_t read_index;
-    uint16_t write_index;
-    uint16_t bufferlength;
+	uint8_t *buffer_ptr;
+	uint16_t bufferlength;
+	uint16_t read_index;
+	uint16_t write_index;
 } FIFO;
 
 
-void fifo_init(FIFO *fifo, uint16_t bufferlength);
-void fifo_deinit(FIFO *fifo);
+void fifo_init(FIFO *fifo, uint8_t *buffer, uint16_t bufferlength);
 
 uint16_t fifo_get_buffersize(FIFO *fifo);