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