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78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/**
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* @file
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*
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* @brief Block Device Statistics Command
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* @ingroup rtems_blkdev Block Device Management
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*/
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/*
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* Copyright (c) 2012 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Obere Lagerstr. 30
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <rtems/blkdev.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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void rtems_blkstats(FILE *output, const char *device, bool reset)
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{
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int fd = open(device, O_RDONLY);
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if (fd >= 0) {
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struct stat st;
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int rv;
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rv = fstat(fd, &st);
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if (rv == 0) {
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if (S_ISBLK(st.st_mode)) {
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if (reset) {
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rv = rtems_disk_fd_reset_device_stats(fd);
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if (rv != 0) {
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fprintf(output, "error: reset stats: %s\n", strerror(errno));
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}
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} else {
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rtems_blkdev_stats stats;
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rv = rtems_disk_fd_get_device_stats(fd, &stats);
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if (rv == 0) {
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rtems_blkdev_print_stats(
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&stats,
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(rtems_printk_plugin_t) fprintf,
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output
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);
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} else {
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fprintf(output, "error: get stats: %s\n", strerror(errno));
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}
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}
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} else {
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fprintf(output, "error: not a block device\n");
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}
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} else {
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fprintf(output, "error: get file stats: %s\n", strerror(errno));
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}
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rv = close(fd);
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if (rv != 0) {
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fprintf(output, "error: close device: %s\n", strerror(errno));
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}
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} else {
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fprintf(output, "error: open device: %s\n", strerror(errno));
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}
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}
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