- Added/moved ddm string-length and buffer-size constants to DiskDeviceDefs.h

- Converted all uses of B_{FILE,OS}_NAME_LENGTH in ddm_userland_interface.cpp
  to appropriate ddm constants.
- Made module names B_PATH_NAME_LENGTH long.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5181 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/storage/DiskDeviceDefs.h

@@ -148,6 +148,14 @@ enum {
 	B_DISK_DEVICE_JOB_CAN_PAUSE				= 0x08,
 };
 
+// string length constants, all of which include the NULL terminator
+#define B_DISK_DEVICE_TYPE_LENGTH B_FILE_NAME_LENGTH
+#define B_DISK_DEVICE_NAME_LENGTH B_FILE_NAME_LENGTH
+#define B_DISK_SYSTEM_NAME_LENGTH B_PATH_NAME_LENGTH
+
+// max size of parameter string buffers, including NULL terminator
+#define B_DISK_DEVICE_MAX_PARAMETER_SIZE (32 * 1024)
+
 #ifdef __cplusplus
 }
 #endif