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33 lines
902 B
33 lines
902 B
2 years ago
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#ifndef _PROC_FILE_H_
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#define _PROC_FILE_H_
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#include "spike_interface/spike_file.h"
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#include "util/types.h"
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#include "vfs.h"
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//
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// file operations
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//
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int do_open(char *pathname, int flags);
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int do_read(int fd, char *buf, uint64 count);
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int do_write(int fd, char *buf, uint64 count);
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int do_lseek(int fd, int offset, int whence);
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int do_stat(int fd, struct istat *istat);
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int do_disk_stat(int fd, struct istat *istat);
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int do_close(int fd);
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void fs_init(void);
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// data structure that manages all openned files in a PCB
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typedef struct proc_file_management_t {
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struct dentry *cwd; // vfs dentry of current working directory
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struct file opened_files[MAX_FILES]; // opened files array
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int nfiles; // the number of files opened by a process
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} proc_file_management;
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proc_file_management *init_proc_file_management(void);
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void reclaim_proc_file_management(proc_file_management *pfiles);
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#endif
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