zs39 opened a new pull request, #3279:
URL: https://github.com/apache/nuttx-apps/pull/3279
## Summary
Obtain detailed IOB information by parsing the /proc/iobinfo file.
## Impact
The new feature does not affect the functionality of existing code.
## Testing
The following code works correctly during testing.
```
/****************************************************************************
* apps/examples/hello/hello_main.c
*
* SPDX-License-Identifier: Apache-2.0
*
* 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 <stdio.h>
#include <errno.h>
#include <netutils/netlib.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* hello_main
****************************************************************************/
int main(int argc, FAR char *argv[])
{
#ifdef CONFIG_MM_IOB
struct iob_stats_s iob_stats;
int ret;
printf("Hello, World!!\n");
printf("\n=== IOB Statistics ===\n");
ret = netlib_get_iobinfo(&iob_stats);
if (ret == 0)
{
printf("Total IOBs: %d\n", iob_stats.ntotal);
printf("Free IOBs: %d\n", iob_stats.nfree);
printf("Waiting tasks: %d\n", iob_stats.nwait);
printf("Throttled: %d\n", iob_stats.nthrottle);
printf("\n");
}
else
{
printf("Failed to get IOB info: %d (errno: %d)\n", ret, errno);
}
#else
printf("Hello, World!!\n");
printf("IOB support is not enabled (CONFIG_MM_IOB)\n");
#endif
return 0;
}
```
The output is as follows
```
nsh> hello
Hello, World!!
=== IOB Statistics ===
Total IOBs: 1024
Free IOBs: 1024
Waiting tasks: 0
Throttled: 768
```
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