vfs_notify.h File Reference

#include <zrtos/bitfield.h>
#include <zrtos/vfs_fd.h>

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Data Structures
struct	_zrtos_vfs_notify_entry_t
struct	_zrtos_vfs_notify_t

Typedefs
typedef void(*	zrtos_vfs_notify_callback_t) (struct _zrtos_vfs_notify_t *thiz, zrtos_vfs_fd_t fd, zrtos_vfs_notify_event_type_t event_type)
typedef struct _zrtos_vfs_notify_entry_t	zrtos_vfs_notify_entry_t
typedef struct _zrtos_vfs_notify_t	zrtos_vfs_notify_t

Enumerations
enum	zrtos_vfs_notify_event_type_t {   ZRTOS_VFS_NOTIFY_EVENT_TYPE__READ,   ZRTOS_VFS_NOTIFY_EVENT_TYPE__WRITE }

Functions
bool	zrtos_vfs_notify__init (zrtos_vfs_notify_t *thiz)
void	zrtos_vfs_notify__add (zrtos_vfs_notify_t *thiz, zrtos_vfs_fd_t fd, zrtos_vfs_notify_callback_t callback)
void	zrtos_vfs_notify__remove (zrtos_vfs_notify_t *thiz, zrtos_vfs_fd_t fd)
void	zrtos_vfs_notify__start (zrtos_vfs_notify_t *thiz)
void	zrtos_vfs_notify__stop (zrtos_vfs_notify_t *thiz)

Typedef Documentation

zrtos_vfs_notify_callback_t

typedef void(* zrtos_vfs_notify_callback_t) (struct _zrtos_vfs_notify_t *thiz,zrtos_vfs_fd_t fd,zrtos_vfs_notify_event_type_t event_type)

Definition at line 24 of file vfs_notify.h.

zrtos_vfs_notify_entry_t

typedef struct _zrtos_vfs_notify_entry_t zrtos_vfs_notify_entry_t

zrtos_vfs_notify_t

typedef struct _zrtos_vfs_notify_t zrtos_vfs_notify_t

Enumeration Type Documentation

zrtos_vfs_notify_event_type_t

enum zrtos_vfs_notify_event_type_t

Enumerator
ZRTOS_VFS_NOTIFY_EVENT_TYPE__READ
ZRTOS_VFS_NOTIFY_EVENT_TYPE__WRITE

Definition at line 19 of file vfs_notify.h.

            {
     ZRTOS_VFS_NOTIFY_EVENT_TYPE__READ
    ,ZRTOS_VFS_NOTIFY_EVENT_TYPE__WRITE
}zrtos_vfs_notify_event_type_t;

Function Documentation

zrtos_vfs_notify__add()

void zrtos_vfs_notify__add	(	zrtos_vfs_notify_t *	thiz,
		zrtos_vfs_fd_t	fd,
		zrtos_vfs_notify_callback_t	callback
	)

Definition at line 51 of file vfs_notify.h.

 {
    zrtos_vfs_fd_set__set(&thiz->fdset,fd);
    zrtos_vfs_notify_entry_t *entry = &thiz->data[fd.fd];
    entry->callback = callback;
}

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zrtos_vfs_notify__init()

bool zrtos_vfs_notify__init

(

zrtos_vfs_notify_t *

thiz

)

Definition at line 40 of file vfs_notify.h.

                                                     {
    zrtos_vfs_fd_set__init(&thiz->fdset);
    zrtos_mem__zero(
         &thiz->data
        ,sizeof(zrtos_vfs_notify_entry_t)*ZRTOS_VFS_FILE_DESCRIPTOR__CFG_MAX
    );
    thiz->error = ZRTOS_ERROR__SUCCESS;

    return true;
}

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zrtos_vfs_notify__remove()

void zrtos_vfs_notify__remove	(	zrtos_vfs_notify_t *	thiz,
		zrtos_vfs_fd_t	fd
	)

Definition at line 61 of file vfs_notify.h.

 {
    zrtos_vfs_fd_set__clear(&thiz->fdset,fd);
    zrtos_vfs_notify_entry_t *entry = &thiz->data[fd.fd];
    entry->callback = 0;
}

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zrtos_vfs_notify__start()

void zrtos_vfs_notify__start

(

zrtos_vfs_notify_t *

thiz

)

Definition at line 70 of file vfs_notify.h.

 {
    zrtos_vfs_fd_set_t fdset_can_read;
    zrtos_vfs_fd_set_t fdset_can_write;

    while(zrtos_error__is_success(thiz->error)){
        zrtos_vfs_fd_set__copy(&fdset_can_read,&thiz->fdset);
        zrtos_vfs_fd_set__copy(&fdset_can_write,&thiz->fdset);
        if(zrtos_vfs_fd__select(&fdset_can_read,&fdset_can_write)>0){
            ZRTOS_VFS_FD_SET__EACH_BEGIN(&fdset_can_read,fd){
                if(thiz->data[fd.fd].callback){
                    thiz->data[fd.fd].callback(
                         thiz
                        ,fd
                        ,ZRTOS_VFS_NOTIFY_EVENT_TYPE__READ
                    );
                }
            }ZRTOS_VFS_FD_SET__EACH_END;

            ZRTOS_VFS_FD_SET__EACH_BEGIN(&fdset_can_write,fd){
                if(thiz->data[fd.fd].callback){
                    thiz->data[fd.fd].callback(
                         thiz
                        ,fd
                        ,ZRTOS_VFS_NOTIFY_EVENT_TYPE__WRITE
                    );
                }
            }ZRTOS_VFS_FD_SET__EACH_END;
        }
    }
}

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zrtos_vfs_notify__stop()

void zrtos_vfs_notify__stop

(

zrtos_vfs_notify_t *

thiz

)

Definition at line 103 of file vfs_notify.h.

 {
    thiz->error = ZRTOS_ERROR__INTR;
}