Ram Gandikota / Mbed OS ABCD

A metronome using the FRDM K64F board

easy-connect/esp8266-driver/ESP8266/ATParser/BufferedSerial/BufferedPrint.c@0:a7a43371b306, 2017-05-14 (annotated)

Committer:
ram54288
Date:
Sun May 14 18:40:18 2017 +0000
Revision:
0:a7a43371b306
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ram54288 0:a7a43371b306 1 /*
ram54288 0:a7a43371b306 2 * Copyright (c) 2014-2015 ARM Limited. All rights reserved.
ram54288 0:a7a43371b306 3 * SPDX-License-Identifier: Apache-2.0
ram54288 0:a7a43371b306 4 * Licensed under the Apache License, Version 2.0 (the License); you may
ram54288 0:a7a43371b306 5 * not use this file except in compliance with the License.
ram54288 0:a7a43371b306 6 * You may obtain a copy of the License at
ram54288 0:a7a43371b306 7 *
ram54288 0:a7a43371b306 8 * http://www.apache.org/licenses/LICENSE-2.0
ram54288 0:a7a43371b306 9 *
ram54288 0:a7a43371b306 10 * Unless required by applicable law or agreed to in writing, software
ram54288 0:a7a43371b306 11 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
ram54288 0:a7a43371b306 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ram54288 0:a7a43371b306 13 * See the License for the specific language governing permissions and
ram54288 0:a7a43371b306 14 * limitations under the License.
ram54288 0:a7a43371b306 15 */
ram54288 0:a7a43371b306 16
ram54288 0:a7a43371b306 17 #include <stdarg.h>
ram54288 0:a7a43371b306 18 #include <stdint.h>
ram54288 0:a7a43371b306 19 #include <stdio.h>
ram54288 0:a7a43371b306 20 #include <string.h>
ram54288 0:a7a43371b306 21
ram54288 0:a7a43371b306 22 #include "mbed_error.h"
ram54288 0:a7a43371b306 23
ram54288 0:a7a43371b306 24 size_t BufferedSerialThunk(void *buf_serial, const void *s, size_t length);
ram54288 0:a7a43371b306 25
ram54288 0:a7a43371b306 26 int BufferedPrintfC(void *stream, int size, const char* format, va_list arg)
ram54288 0:a7a43371b306 27 {
ram54288 0:a7a43371b306 28 int r;
ram54288 0:a7a43371b306 29 char buffer[512];
ram54288 0:a7a43371b306 30 if (size >= 512) {
ram54288 0:a7a43371b306 31 return -1;
ram54288 0:a7a43371b306 32 }
ram54288 0:a7a43371b306 33 memset(buffer, 0, size);
ram54288 0:a7a43371b306 34 r = vsprintf(buffer, format, arg);
ram54288 0:a7a43371b306 35 // this may not hit the heap but should alert the user anyways
ram54288 0:a7a43371b306 36 if(r > (int32_t) size) {
ram54288 0:a7a43371b306 37 error("%s %d buffer overwrite (max_buf_size: %d exceeded: %d)!\r\n", __FILE__, __LINE__, size, r);
ram54288 0:a7a43371b306 38 return 0;
ram54288 0:a7a43371b306 39 }
ram54288 0:a7a43371b306 40 if ( r > 0 ) {
ram54288 0:a7a43371b306 41 BufferedSerialThunk(stream, buffer, r);
ram54288 0:a7a43371b306 42 }
ram54288 0:a7a43371b306 43 return r;
ram54288 0:a7a43371b306 44 }