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Diffstat (limited to 'cpukit/libblock/src/blkdev-blkstats.c')
-rw-r--r--cpukit/libblock/src/blkdev-blkstats.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/cpukit/libblock/src/blkdev-blkstats.c b/cpukit/libblock/src/blkdev-blkstats.c
new file mode 100644
index 0000000000..c870fe1080
--- /dev/null
+++ b/cpukit/libblock/src/blkdev-blkstats.c
@@ -0,0 +1,70 @@
+/*
+ * 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.com/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>
+
+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));
+ }
+}