| /**************************************************************************** |
| * apps/testing/ostest/setvbuf.c |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. The |
| * ASF licenses this file to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the |
| * License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations |
| * under the License. |
| * |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| |
| #include <assert.h> |
| #include <stdio.h> |
| |
| #ifndef CONFIG_STDIO_DISABLE_BUFFERING |
| |
| /**************************************************************************** |
| * Public Functions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * setvbuf_test |
| ****************************************************************************/ |
| |
| int setvbuf_test(void) |
| { |
| FILE *stream; |
| char buffer[64]; |
| int ret; |
| |
| printf("setvbuf_test: Test NO buffering\n"); |
| |
| stream = fopen("/dev/console", "w"); |
| if (stream == NULL) |
| { |
| printf("setvbuf_test ERROR: fopen(dev/console, rw) failed\n"); |
| ASSERT(false); |
| return ERROR; |
| } |
| |
| ret = setvbuf(stream, NULL, _IONBF, 0); |
| if (ret < 0) |
| { |
| printf("setvbuf_test ERROR: " |
| "setvbuf(stream, NULL, _IONBF, 0) failed\n"); |
| ASSERT(false); |
| } |
| |
| fprintf(stream, "setvbuf_test: Using NO buffering\r\n"); |
| |
| /* Close the stream. setvbuf() may only be called AFTER the stream has |
| * been opened and BEFORE any operations have been performed on the |
| * stream. |
| */ |
| |
| fclose(stream); |
| |
| printf("setvbuf_test: Test default FULL buffering\n"); |
| |
| stream = fopen("/dev/console", "w"); |
| if (stream == NULL) |
| { |
| printf("setvbuf_test ERROR: fopen(dev/console, rw) failed\n"); |
| ASSERT(false); |
| return ERROR; |
| } |
| |
| ret = setvbuf(stream, NULL, _IOFBF, 0); |
| if (ret < 0) |
| { |
| printf("ssetvbuf_test ERROR: " |
| "setvbuf(stream, NULL, _IOFBF, 0) failed\n"); |
| ASSERT(false); |
| } |
| |
| fprintf(stream, "setvbuf_test: Using default FULL buffering\r\n"); |
| |
| /* Close the stream. setvbuf() may only be called AFTER the stream has |
| * been opened and BEFORE any operations have been performed on the |
| * stream. |
| */ |
| |
| fclose(stream); |
| |
| printf("setvbuf_test: Test FULL buffering, buffer size 64\n"); |
| |
| stream = fopen("/dev/console", "w"); |
| if (stream == NULL) |
| { |
| printf("setvbuf_test ERROR: fopen(dev/console, rw) failed\n"); |
| ASSERT(false); |
| return ERROR; |
| } |
| |
| ret = setvbuf(stream, NULL, _IOFBF, 64); |
| if (ret < 0) |
| { |
| printf("ssetvbuf_test ERROR: " |
| "setvbuf(stream, NULL, _IOFBF, 64) failed\n"); |
| ASSERT(false); |
| } |
| |
| fprintf(stream, "setvbuf_test: Using FULL buffering, buffer size 64\r\n"); |
| |
| /* Close the stream. setvbuf() may only be called AFTER the stream has |
| * been opened and BEFORE any operations have been performed on the |
| * stream. |
| */ |
| |
| fclose(stream); |
| |
| printf("setvbuf_test: Test FULL buffering, pre-allocated buffer\n"); |
| |
| stream = fopen("/dev/console", "w"); |
| if (stream == NULL) |
| { |
| printf("setvbuf_test ERROR: fopen(dev/console, rw) failed\n"); |
| ASSERT(false); |
| return ERROR; |
| } |
| |
| ret = setvbuf(stream, buffer, _IOFBF, 64); |
| if (ret < 0) |
| { |
| printf("ssetvbuf_test ERROR: " |
| "setvbuf(stream, buffer, _IOFBF, 64) failed\n"); |
| ASSERT(false); |
| } |
| |
| fprintf(stream, |
| "setvbuf_test: Using FULL buffering, pre-allocated buffer\r\n"); |
| |
| /* Close the stream. setvbuf() may only be called AFTER the stream has |
| * been opened and BEFORE any operations have been performed on the |
| * stream. |
| */ |
| |
| fclose(stream); |
| |
| printf("setvbuf_test: Test LINE buffering, buffer size 64\n"); |
| |
| stream = fopen("/dev/console", "w"); |
| if (stream == NULL) |
| { |
| printf("setvbuf_test ERROR: fopen(dev/console, rw) failed\n"); |
| ASSERT(false); |
| return ERROR; |
| } |
| |
| ret = setvbuf(stream, NULL, _IOLBF, 64); |
| if (ret < 0) |
| { |
| printf("setvbuf_test ERROR: " |
| "setvbuf(stream, NULL, _IOLBF, 64) failed\n"); |
| ASSERT(false); |
| } |
| |
| fprintf(stream, "setvbuf_test: Using LINE buffering, buffer size 64\r\n"); |
| |
| /* Close the stream. setvbuf() may only be called AFTER the stream has |
| * been opened and BEFORE any operations have been performed on the |
| * stream. |
| */ |
| |
| fclose(stream); |
| |
| printf("setvbuf_test: Test FULL buffering, pre-allocated buffer\n"); |
| |
| stream = fopen("/dev/console", "w"); |
| if (stream == NULL) |
| { |
| printf("setvbuf_test ERROR: fopen(dev/console, rw) failed\n"); |
| ASSERT(false); |
| return ERROR; |
| } |
| |
| ret = setvbuf(stream, buffer, _IOLBF, 64); |
| if (ret < 0) |
| { |
| printf("setvbuf_test ERROR: " |
| "setvbuf(stream, buffer, _IOLBF, 64) failed\n"); |
| ASSERT(false); |
| } |
| |
| fprintf(stream, |
| "setvbuf_test: Using FULL buffering, pre-allocated buffer\r\n"); |
| |
| fclose(stream); |
| return 0; |
| } |
| |
| #endif /* CONFIG_STDIO_DISABLE_BUFFERING */ |