Greg Steiert / pegasus_dev

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Dependents:   blinky_max32630fthr

TESTS/mbed_drivers/dev_null/main.cpp@0:5c4d7b2438d3, 2016-11-11 (annotated)

Committer:
switches
Date:
Fri Nov 11 20:59:50 2016 +0000
Revision:
0:5c4d7b2438d3
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
switches 0:5c4d7b2438d3 1 /* mbed Microcontroller Library
switches 0:5c4d7b2438d3 2 * Copyright (c) 2013-2014 ARM Limited
switches 0:5c4d7b2438d3 3 *
switches 0:5c4d7b2438d3 4 * Licensed under the Apache License, Version 2.0 (the "License");
switches 0:5c4d7b2438d3 5 * you may not use this file except in compliance with the License.
switches 0:5c4d7b2438d3 6 * You may obtain a copy of the License at
switches 0:5c4d7b2438d3 7 *
switches 0:5c4d7b2438d3 8 * http://www.apache.org/licenses/LICENSE-2.0
switches 0:5c4d7b2438d3 9 *
switches 0:5c4d7b2438d3 10 * Unless required by applicable law or agreed to in writing, software
switches 0:5c4d7b2438d3 11 * distributed under the License is distributed on an "AS IS" BASIS,
switches 0:5c4d7b2438d3 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
switches 0:5c4d7b2438d3 13 * See the License for the specific language governing permissions and
switches 0:5c4d7b2438d3 14 * limitations under the License.
switches 0:5c4d7b2438d3 15 */
switches 0:5c4d7b2438d3 16
switches 0:5c4d7b2438d3 17 #include "mbed.h"
switches 0:5c4d7b2438d3 18 #include "greentea-client/test_env.h"
switches 0:5c4d7b2438d3 19
switches 0:5c4d7b2438d3 20 class DevNull : public Stream {
switches 0:5c4d7b2438d3 21 public:
switches 0:5c4d7b2438d3 22 DevNull(const char *name = NULL) : Stream(name) {}
switches 0:5c4d7b2438d3 23
switches 0:5c4d7b2438d3 24 protected:
switches 0:5c4d7b2438d3 25 virtual int _getc() {
switches 0:5c4d7b2438d3 26 return 0;
switches 0:5c4d7b2438d3 27 }
switches 0:5c4d7b2438d3 28 virtual int _putc(int c) {
switches 0:5c4d7b2438d3 29 return c;
switches 0:5c4d7b2438d3 30 }
switches 0:5c4d7b2438d3 31 };
switches 0:5c4d7b2438d3 32
switches 0:5c4d7b2438d3 33 DevNull null("null");
switches 0:5c4d7b2438d3 34
switches 0:5c4d7b2438d3 35 int main() {
switches 0:5c4d7b2438d3 36 GREENTEA_SETUP(2, "dev_null_auto");
switches 0:5c4d7b2438d3 37
switches 0:5c4d7b2438d3 38 printf("MBED: before re-routing stdout to /null\n"); // This shouldn't appear
switches 0:5c4d7b2438d3 39 greentea_send_kv("to_stdout", "re-routing stdout to /null");
switches 0:5c4d7b2438d3 40
switches 0:5c4d7b2438d3 41 if (freopen("/null", "w", stdout)) {
switches 0:5c4d7b2438d3 42 // This shouldn't appear on serial
switches 0:5c4d7b2438d3 43 // We should use pure printf here to send KV
switches 0:5c4d7b2438d3 44 printf("{{to_null;printf redirected to /null}}\n");
switches 0:5c4d7b2438d3 45 printf("MBED: this printf is already redirected to /null\n");
switches 0:5c4d7b2438d3 46 }
switches 0:5c4d7b2438d3 47
switches 0:5c4d7b2438d3 48 while(1) {
switches 0:5c4d7b2438d3 49 // Success is determined by the host test at this point, so busy wait
switches 0:5c4d7b2438d3 50 }
switches 0:5c4d7b2438d3 51 }