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43 lines
1.3 KiB
C
43 lines
1.3 KiB
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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#include <task.h>
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#define SEEK_CUR 0
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#define SEEK_END 1
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#define SEEK_SET 2
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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(struct tcb *sender, int fd, void *buf, int count);
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int sys_write(struct tcb *sender, int fd, void *buf, int count);
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int sys_lseek(struct tcb *sender, int fd, off_t offset, int whence);
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int sys_close(struct tcb *sender, int fd);
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int sys_fsync(struct tcb *sender, int fd);
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int file_open(struct tcb *opener, int fd);
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int vfs_open_bypath(const char *pathname, unsigned long *vnum, unsigned long *length);
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struct vm_file *do_open2(struct tcb *task, int fd, unsigned long vnum, unsigned long length);
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int flush_file_pages(struct vm_file *f);
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int read_file_pages(struct vm_file *vmfile, unsigned long pfn_start,
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unsigned long pfn_end);
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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 link vm_file_list;
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#endif /* __MM0_FILE_H__ */
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