diff options
Diffstat (limited to 'lnode.h')
| -rw-r--r-- | lnode.h | 54 |
1 files changed, 34 insertions, 20 deletions
@@ -5,7 +5,7 @@ /*----------------------------------------------------------------------------*/ /*Based on the code of unionfs translator.*/ /*----------------------------------------------------------------------------*/ -/*Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc. +/*Copyright (C) 2001, 2002, 2005, 2008 Free Software Foundation, Inc. Written by Sergiu Ivanov <unlimitedscolobb@gmail.com>. This program is free software; you can redistribute it and/or @@ -35,14 +35,25 @@ /*--------Macros--------------------------------------------------------------*/ /*The possible flags in an lnode*/ #define FLAG_LNODE_DIR 0x00000001 /*the lnode is a directory*/ -#define FLAG_LNODE_TRANSLATED 0x00000002 /*all appropriate translators - have already been set on this node*/ /*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/ +/*--------Types---------------------------------------------------------------*/ /*A candy synonym for the fundamental libnetfs node*/ typedef struct node node_t; /*----------------------------------------------------------------------------*/ +/*A list of lnodes*/ +struct node_element + { + /*the node associated with the current entry*/ + node_t * node; + + /*the next element in the list*/ + struct node_element * next; + };/*struct node_element*/ +/*----------------------------------------------------------------------------*/ +typedef struct node_element * node_list_t; +/*----------------------------------------------------------------------------*/ /*The light node*/ struct lnode { @@ -56,26 +67,19 @@ struct lnode /*the full path to the lnode*/ char * path; - /*the malloced set of translators which have to be stacked upon this node - and upon its children; the corresponding translators will have to decide - on their own whether to accept directories or not*/ - char * trans; - - /*the number of translators listed in `translators`*/ - size_t ntrans; - - /*the length of the list of translators (in bytes)*/ - size_t translen; - /*the associated flags*/ int flags; /*the number of references to this lnode*/ int references; - /*the reference to the real node*/ + /*the reference to the real netfs node*/ node_t * node; + /*the references to the proxy nodes of this lnode; + lnodes do not hold references to */ + node_list_t proxies; + /*the next lnode and the pointer to this lnode from the previous one*/ struct lnode * next, **prevp; @@ -85,7 +89,7 @@ struct lnode /*the beginning of the list of entries contained in this lnode (directory)*/ struct lnode * entries; - /*a lock*/ + /*the lock, protecting this lnode*/ struct mutex lock; };/*struct lnode*/ /*----------------------------------------------------------------------------*/ @@ -159,13 +163,23 @@ lnode_uninstall lnode_t * node ); /*----------------------------------------------------------------------------*/ -/*Constructs a list of translators that were set on the ancestors of `node`*/ +/*Makes the specified lnode aware of another proxy. Both `node` and `proxy` + must be locked*/ error_t -lnode_list_translators +lnode_add_proxy ( lnode_t * node, - char ** trans, /*the malloced list of 0-separated strings*/ - size_t * ntrans /*the number of elements in `trans`*/ + node_t * proxy + ); +/*----------------------------------------------------------------------------*/ +/*Removes the specified proxy from the list of proxies of the supplied lnode. + `proxy` must not be locked*/ +void +lnode_remove_proxy + ( + lnode_t * node, + node_t * proxy ); /*----------------------------------------------------------------------------*/ #endif /*__LNODE_H__*/ + |