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Dependencies: mbed CANBuffer Watchdog MODSERIAL mbed-rtos xbeeRelay IAP
Fork of SystemManagement by
Diff: Libs/MODSERIAL/RESIZE.cpp
- Revision:
- 33:6bc82b6b62e5
- Parent:
- 32:e70407021ad2
- Child:
- 34:18bcf276d3bf
--- a/Libs/MODSERIAL/RESIZE.cpp Sun Nov 16 02:43:58 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,123 +0,0 @@
-/*
- Copyright (c) 2010 Andy Kirkham
-
- Permission is hereby granted, free of charge, to any person obtaining a copy
- of this software and associated documentation files (the "Software"), to deal
- in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
-
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- THE SOFTWARE.
-*/
-
-#include "MODSERIAL.h"
-#include "MACROS.h"
-
-namespace AjK {
-
-int
-MODSERIAL::resizeBuffer(int size, IrqType type, bool memory_check)
-{
- int rval = Ok;
-
- // If the requested size is the same as the current size there's nothing to do,
- // just continue to use the same buffer as it's fine as it is.
- if (buffer_size[type] == size) return rval;
-
- // Make sure the ISR cannot use the buffers while we are manipulating them.
- disableIrq();
-
- // If the requested buffer size is larger than the current size,
- // attempt to create a new buffer and use it.
- if (buffer_size[type] < size) {
- rval = upSizeBuffer(size, type, memory_check);
- }
- else if (buffer_size[type] > size) {
- rval = downSizeBuffer(size, type, memory_check);
- }
-
- // Start the ISR system again with the new buffers.
- enableIrq();
-
- return rval;
-}
-
-int
-MODSERIAL::downSizeBuffer(int size, IrqType type, bool memory_check)
-{
- if (size >= buffer_count[type]) {
- return BufferOversize;
- }
-
- char *s = (char *)malloc(size);
-
- if (s == (char *)NULL) {
- if (memory_check) {
- error("Failed to allocate memory for %s buffer", type == TxIrq ? "TX" : "RX");
- }
- return NoMemory;
- }
-
- int c, new_in = 0;
-
- do {
- c = __getc(false);
- if (c != -1) s[new_in++] = (char)c;
- if (new_in >= size) new_in = 0;
- }
- while (c != -1);
-
- free((char *)buffer[type]);
- buffer[type] = s;
- buffer_in[type] = new_in;
- buffer_out[type] = 0;
- return Ok;
-}
-
-int
-MODSERIAL::upSizeBuffer(int size, IrqType type, bool memory_check)
-{
- char *s = (char *)malloc(size);
-
- if (s == (char *)NULL) {
- if (memory_check) {
- error("Failed to allocate memory for %s buffer", type == TxIrq ? "TX" : "RX");
- }
- return NoMemory;
- }
-
- if (buffer_count[type] == 0) { // Current buffer empty?
- free((char *)buffer[type]);
- buffer[type] = s;
- buffer_in[type] = 0;
- buffer_out[type] = 0;
- }
- else { // Copy the current contents into the new buffer.
- int c, new_in = 0;
- do {
- c = __getc(false);
- if (c != -1) s[new_in++] = (char)c;
- if (new_in >= size) new_in = 0; // Shouldn't happen, but be sure.
- }
- while (c != -1);
- free((char *)buffer[type]);
- buffer[type] = s;
- buffer_in[type] = new_in;
- buffer_out[type] = 0;
- }
-
- buffer_size[type] = size;
- return Ok;
-}
-
-}; // namespace AjK ends
