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81ebffdc87
Separated vfs file as a specific file. vm file is not always a vfs file. Updated the README sys_open was not returning back to client, added that. Added comments for future vfs additions.
33 lines
925 B
C
33 lines
925 B
C
#ifndef __MM0_FILE_H__
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#define __MM0_FILE_H__
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#include <l4/lib/list.h>
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#include <l4lib/types.h>
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#include <posix/sys/types.h>
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void vmfile_init(void);
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struct vm_file *vmfile_alloc_init(void);
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int vfs_receive_sys_open(l4id_t sender, l4id_t opener, int fd,
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unsigned long vnum, unsigned long size);
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int vfs_read(unsigned long vnum, unsigned long f_offset, unsigned long npages,
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void *pagebuf);
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int vfs_write(unsigned long vnum, unsigned long f_offset, unsigned long npages,
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void *pagebuf);
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int sys_read(l4id_t sender, int fd, void *buf, int count);
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int sys_write(l4id_t sender, int fd, void *buf, int count);
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int sys_lseek(l4id_t sender, int fd, off_t offset, int whence);
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struct vfs_file_data {
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unsigned long vnum;
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};
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#define vm_file_to_vnum(f) \
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(((struct vfs_file_data *)((f)->priv_data))->vnum)
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struct vm_file *vfs_file_create(void);
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extern struct list_head vm_file_list;
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#endif /* __MM0_FILE_H__ */
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