vfs_dentry.h File Reference

#include <zrtos/str.h>
#include <zrtos/types.h>
#include <zrtos/clist.h>
#include <zrtos/vfs_inode.h>
#include <zrtos/vfs/module/null/null.h>

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Data Structures
struct	_zrtos_vfs_dentry_t
struct	_zrtos_vfs_dentry__each_child_cb_inode_t

Typedefs
typedef struct _zrtos_vfs_dentry_t	zrtos_vfs_dentry_t
typedef struct _zrtos_vfs_dentry__each_child_cb_inode_t	zrtos_vfs_dentry__each_child_cb_inode_t

Functions
bool	zrtos_vfs_dentry__init (zrtos_vfs_dentry_t *thiz, char *name, struct _zrtos_vfs_dentry_t *parent)
bool	zrtos_vfs_dentry__is_filesystem (zrtos_vfs_dentry_t *node)
static bool	zrtos_vfs_dentry__each_child_cb (zrtos_clist_node_t *node, void *arg)
void	zrtos_vfs_dentry__each_child (zrtos_vfs_dentry_t *thiz, bool(*callback)(zrtos_vfs_dentry_t *node, void *arg), void *callback_arg, bool(*filter)(zrtos_vfs_dentry_t *node, void *arg), void *filter_arg)
bool	zrtos_vfs_dentry__each_child_filter_name_cb (zrtos_vfs_dentry_t *thiz, void *arg)
static bool	zrtos_vfs_dentry__lookup_callback_cb (zrtos_vfs_dentry_t *node, void *arg)
zrtos_vfs_dentry_t *	zrtos_vfs_dentry__lookup (zrtos_vfs_dentry_t *thiz, char *path)
zrtos_error_t	zrtos_vfs_dentry__mount (zrtos_vfs_dentry_t *thiz, zrtos_vfs_plugin_t *plugin, void *inode_ctx)
zrtos_error_t	zrtos_vfs_dentry__umount (zrtos_vfs_dentry_t *thiz)
void	zrtos_vfs_dentry__set_inode_data (zrtos_vfs_dentry_t *thiz, void *ctx)
void *	zrtos_vfs_dentry__get_inode_data (zrtos_vfs_dentry_t *thiz)

Variables
zrtos_clist_t	zrtos_vfs_dentry__index = {}

Typedef Documentation

zrtos_vfs_dentry__each_child_cb_inode_t

typedef struct _zrtos_vfs_dentry__each_child_cb_inode_t zrtos_vfs_dentry__each_child_cb_inode_t

zrtos_vfs_dentry_t

typedef struct _zrtos_vfs_dentry_t zrtos_vfs_dentry_t

Function Documentation

zrtos_vfs_dentry__each_child()

void zrtos_vfs_dentry__each_child	(	zrtos_vfs_dentry_t *	thiz,
		bool(*)(zrtos_vfs_dentry_t *node, void *arg)	callback,
		void *	callback_arg,
		bool(*)(zrtos_vfs_dentry_t *node, void *arg)	filter,
		void *	filter_arg
	)

Definition at line 92 of file vfs_dentry.h.

 {
    zrtos_vfs_dentry__each_child_cb_inode_t args = {
         .parent = thiz
        ,.callback = callback
        ,.callback_arg = callback_arg
        ,.filter = filter
        ,.filter_arg = filter_arg
    };
    zrtos_clist__each(
         &zrtos_vfs_dentry__index
        ,zrtos_vfs_dentry__each_child_cb
        ,&args
    );
}

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zrtos_vfs_dentry__each_child_cb()

static bool zrtos_vfs_dentry__each_child_cb ( zrtos_clist_node_t *  node, void *  arg  )

static

Definition at line 74 of file vfs_dentry.h.

                                                                               {
    bool ret = true;
    zrtos_vfs_dentry_t *dentry = zrtos_types__get_container_of_ex(
         node
        ,zrtos_vfs_dentry_t
        ,node
    );
    zrtos_vfs_dentry__each_child_cb_inode_t *args = ZRTOS_CAST(
         zrtos_vfs_dentry__each_child_cb_inode_t *
        ,arg
    );
    if(args->parent == dentry->parent
    && args->filter(dentry,args->filter_arg)){
        ret = args->callback(dentry,args->callback_arg);
    }
    return ret;
}

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zrtos_vfs_dentry__each_child_filter_name_cb()

bool zrtos_vfs_dentry__each_child_filter_name_cb	(	zrtos_vfs_dentry_t *	thiz,
		void *	arg
	)

Definition at line 113 of file vfs_dentry.h.

 {
    return 0 == zrtos_str__cmp(thiz->name,(char*)arg);
}

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zrtos_vfs_dentry__get_inode_data()

void* zrtos_vfs_dentry__get_inode_data

(

zrtos_vfs_dentry_t *

thiz

)

Definition at line 196 of file vfs_dentry.h.

                                                                {
    return thiz->inode.ctx;
}

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zrtos_vfs_dentry__init()

bool zrtos_vfs_dentry__init	(	zrtos_vfs_dentry_t *	thiz,
		char *	name,
		struct _zrtos_vfs_dentry_t *	parent
	)

Definition at line 31 of file vfs_dentry.h.

 {
    zrtos_clist_node__init(&thiz->node);
    thiz->name = name;
    thiz->parent = parent;
    zrtos_vfs_inode__init(
         &thiz->inode
        ,ZRTOS_VFS_PLUGIN(null)
        ,0
    );
    thiz->count = 0;

    zrtos_clist__push(&zrtos_vfs_dentry__index,&thiz->node);

    return true;
}

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zrtos_vfs_dentry__is_filesystem()

bool zrtos_vfs_dentry__is_filesystem

(

zrtos_vfs_dentry_t *

node

)

Definition at line 51 of file vfs_dentry.h.

                                                              {
    //return ZRTOS_VFS_PLUGIN_TYPE__FILESYSTEM == node->inode.plugin->type;
    return false;
}

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zrtos_vfs_dentry__lookup()

zrtos_vfs_dentry_t* zrtos_vfs_dentry__lookup	(	zrtos_vfs_dentry_t *	thiz,
		char *	path
	)

Definition at line 126 of file vfs_dentry.h.

 {
    char               *token;
    zrtos_vfs_dentry_t *ret = 0;

    while((token = zrtos_str__tok_r(path,"/", &path))){
        zrtos_vfs_dentry__each_child(
             thiz
            ,zrtos_vfs_dentry__lookup_callback_cb
            ,&thiz
            ,zrtos_vfs_dentry__each_child_filter_name_cb
            ,token
        );
        if(thiz){
            ret = thiz;
        }else{
            if(!zrtos_vfs_dentry__is_filesystem(ret)){
                ret = 0;
            }
            break;
        }
    }

    return ret;
}

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zrtos_vfs_dentry__lookup_callback_cb()

static bool zrtos_vfs_dentry__lookup_callback_cb ( zrtos_vfs_dentry_t *  node, void *  arg  )

static

Definition at line 120 of file vfs_dentry.h.

                                                                                    {
    zrtos_vfs_dentry_t **args = (zrtos_vfs_dentry_t **)arg;
    *args = node;
    return false;
}

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zrtos_vfs_dentry__mount()

zrtos_error_t zrtos_vfs_dentry__mount	(	zrtos_vfs_dentry_t *	thiz,
		zrtos_vfs_plugin_t *	plugin,
		void *	inode_ctx
	)

Definition at line 154 of file vfs_dentry.h.

 {
    zrtos_error_t ret = ZRTOS_ERROR__BUSY;
    if(0 == thiz->count){
        zrtos_vfs_inode__init(
             &thiz->inode
            ,plugin
            ,inode_ctx
        );
        ret = ZRTOS_VFS_PLUGIN__INVOKE(
             plugin
            ,ZRTOS_VFS_PLUGIN_OPERATION__MOUNT
            ,thiz
        );
    }
    return ret;
}

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zrtos_vfs_dentry__set_inode_data()

void zrtos_vfs_dentry__set_inode_data	(	zrtos_vfs_dentry_t *	thiz,
		void *	ctx
	)

Definition at line 192 of file vfs_dentry.h.

                                                                         {
    thiz->inode.ctx = ctx;
}

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zrtos_vfs_dentry__umount()

zrtos_error_t zrtos_vfs_dentry__umount

(

zrtos_vfs_dentry_t *

thiz

)

Definition at line 175 of file vfs_dentry.h.

 {
    zrtos_error_t ret = ZRTOS_ERROR__BUSY;
    if(0 == thiz->count){
        ret = ZRTOS_VFS_PLUGIN__INVOKE(
             thiz->inode.plugin
            ,ZRTOS_VFS_PLUGIN_OPERATION__UMOUNT
            ,thiz
        );
        if(zrtos_error__is_success(ret)){
            zrtos_vfs_inode__deinit(&thiz->inode);
        }
    }
    return ret;
}

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Variable Documentation

zrtos_vfs_dentry__index

zrtos_clist_t zrtos_vfs_dentry__index = {}

Definition at line 29 of file vfs_dentry.h.