handle.h

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#ifndef __SYS_HANDLE_H__
#define __SYS_HANDLE_H__
 
#include <sys/queue.h>
#include <sys/disk.h>
#include <sys/vfs.h>
 
struct Handle;
typedef struct Handle Handle;
 
#define HANDLE_TYPE_FILE        1
#define HANDLE_TYPE_CONSOLE     2
 
typedef TAILQ_HEAD(HandleQueue, Handle) HandleQueue;
 
typedef struct Handle {
    uint64_t            fd;                             // FD Number
    uint64_t            type;                           // Type
    uint64_t            processId;                      // Process ID
    VNode               *vnode;                         // File VNode
    TAILQ_ENTRY(Handle) handleList;                     // Hash table
    int (*read)(Handle *, void *, uint64_t, uint64_t);  // Read
    int (*write)(Handle *, void *, uint64_t, uint64_t); // Write
    int (*flush)(Handle *);                             // Flush
    int (*close)(Handle *);                             // Close
} Handle;
 
DECLARE_SLAB(Handle);
 
#endif /* __SYS_HANDLE_H__ */