ramdisk: Switch to CLI command for user interface

* Drop the old "echo to control device" interface in favor of an ioctl interface. * Add CLI program "ramdisk" to manage RAM disks.
2013-11-30 17:02:49 +01:00
parent 5df58b522b
commit 25a83d13b9
4 changed files with 766 additions and 275 deletions
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2013, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _PRIVATE_FILE_SYSTEMS_RAM_DISK_RAM_DISK_H
+#define _PRIVATE_FILE_SYSTEMS_RAM_DISK_RAM_DISK_H
+
+
+#include <Drivers.h>
+#include <StorageDefs.h>
+
+
+#define RAM_DISK_CONTROL_DEVICE_NAME	"disk/virtual/ram/control"
+#define RAM_DISK_RAW_DEVICE_BASE_NAME	"disk/virtual/ram"
+
+
+enum {
+	RAM_DISK_IOCTL_REGISTER		= B_DEVICE_OP_CODES_END + 1,
+	RAM_DISK_IOCTL_UNREGISTER,
+	RAM_DISK_IOCTL_FLUSH,
+	RAM_DISK_IOCTL_INFO
+};
+
+
+struct ram_disk_ioctl_register {
+	uint64	size;
+	char	path[B_PATH_NAME_LENGTH];
+
+	// return value
+	int32	id;
+};
+
+
+struct ram_disk_ioctl_unregister {
+	int32	id;
+};
+
+
+struct ram_disk_ioctl_info {
+	// return values
+	int32	id;
+	uint64	size;
+	char	path[B_PATH_NAME_LENGTH];
+};
+
+
+#endif	// _PRIVATE_FILE_SYSTEMS_RAM_DISK_RAM_DISK_H