Ram Gandikota / Mbed OS IOTMetronome

FRDM K64F Metronome

easy-connect/esp8266-driver/ESP8266/ATParser/BufferedSerial/BufferedPrint.c@0:dbad57390bd1, 2017-05-14 (annotated)

Committer:
ram54288
Date:
Sun May 14 18:37:05 2017 +0000
Revision:
0:dbad57390bd1
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ram54288 0:dbad57390bd1 1 /*
ram54288 0:dbad57390bd1 2 * Copyright (c) 2014-2015 ARM Limited. All rights reserved.
ram54288 0:dbad57390bd1 3 * SPDX-License-Identifier: Apache-2.0
ram54288 0:dbad57390bd1 4 * Licensed under the Apache License, Version 2.0 (the License); you may
ram54288 0:dbad57390bd1 5 * not use this file except in compliance with the License.
ram54288 0:dbad57390bd1 6 * You may obtain a copy of the License at
ram54288 0:dbad57390bd1 7 *
ram54288 0:dbad57390bd1 8 * http://www.apache.org/licenses/LICENSE-2.0
ram54288 0:dbad57390bd1 9 *
ram54288 0:dbad57390bd1 10 * Unless required by applicable law or agreed to in writing, software
ram54288 0:dbad57390bd1 11 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
ram54288 0:dbad57390bd1 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ram54288 0:dbad57390bd1 13 * See the License for the specific language governing permissions and
ram54288 0:dbad57390bd1 14 * limitations under the License.
ram54288 0:dbad57390bd1 15 */
ram54288 0:dbad57390bd1 16
ram54288 0:dbad57390bd1 17 #include <stdarg.h>
ram54288 0:dbad57390bd1 18 #include <stdint.h>
ram54288 0:dbad57390bd1 19 #include <stdio.h>
ram54288 0:dbad57390bd1 20 #include <string.h>
ram54288 0:dbad57390bd1 21
ram54288 0:dbad57390bd1 22 #include "mbed_error.h"
ram54288 0:dbad57390bd1 23
ram54288 0:dbad57390bd1 24 size_t BufferedSerialThunk(void *buf_serial, const void *s, size_t length);
ram54288 0:dbad57390bd1 25
ram54288 0:dbad57390bd1 26 int BufferedPrintfC(void *stream, int size, const char* format, va_list arg)
ram54288 0:dbad57390bd1 27 {
ram54288 0:dbad57390bd1 28 int r;
ram54288 0:dbad57390bd1 29 char buffer[512];
ram54288 0:dbad57390bd1 30 if (size >= 512) {
ram54288 0:dbad57390bd1 31 return -1;
ram54288 0:dbad57390bd1 32 }
ram54288 0:dbad57390bd1 33 memset(buffer, 0, size);
ram54288 0:dbad57390bd1 34 r = vsprintf(buffer, format, arg);
ram54288 0:dbad57390bd1 35 // this may not hit the heap but should alert the user anyways
ram54288 0:dbad57390bd1 36 if(r > (int32_t) size) {
ram54288 0:dbad57390bd1 37 error("%s %d buffer overwrite (max_buf_size: %d exceeded: %d)!\r\n", __FILE__, __LINE__, size, r);
ram54288 0:dbad57390bd1 38 return 0;
ram54288 0:dbad57390bd1 39 }
ram54288 0:dbad57390bd1 40 if ( r > 0 ) {
ram54288 0:dbad57390bd1 41 BufferedSerialThunk(stream, buffer, r);
ram54288 0:dbad57390bd1 42 }
ram54288 0:dbad57390bd1 43 return r;
ram54288 0:dbad57390bd1 44 }