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65 lines
1.5 KiB
65 lines
1.5 KiB
3 years ago
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#ifndef _SPIKE_FILE_H_
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#define _SPIKE_FILE_H_
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#include <unistd.h>
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#include <sys/stat.h>
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#include "util/types.h"
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typedef struct file {
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int kfd; // file descriptor of the host file
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uint32 refcnt;
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} spike_file_t;
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extern spike_file_t spike_files[];
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#define O_RDONLY 00
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#define O_WRONLY 01
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#define O_RDWR 02
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#define ENOMEM 12 /* Out of memory */
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#define stdin (spike_files + 0)
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#define stdout (spike_files + 1)
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#define stderr (spike_files + 2)
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#define INIT_FILE_REF 3
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struct frontend_stat {
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uint64 dev;
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uint64 ino;
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uint32 mode;
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uint32 nlink;
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uint32 uid;
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uint32 gid;
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uint64 rdev;
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uint64 __pad1;
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uint64 size;
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uint32 blksize;
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uint32 __pad2;
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uint64 blocks;
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uint64 atime;
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uint64 __pad3;
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uint64 mtime;
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uint64 __pad4;
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uint64 ctime;
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uint64 __pad5;
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uint32 __unused4;
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uint32 __unused5;
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};
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void copy_stat(struct stat* dest, struct frontend_stat* src);
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spike_file_t* spike_file_open(const char* fn, int flags, int mode);
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int spike_file_close(spike_file_t* f);
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spike_file_t* spike_file_openat(int dirfd, const char* fn, int flags, int mode);
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ssize_t spike_file_lseek(spike_file_t* f, size_t ptr, int dir);
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ssize_t spike_file_read(spike_file_t* f, void* buf, size_t size);
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ssize_t spike_file_pread(spike_file_t* f, void* buf, size_t n, off_t off);
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ssize_t spike_file_write(spike_file_t* f, const void* buf, size_t n);
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void spike_file_decref(spike_file_t* f);
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void spike_file_init(void);
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int spike_file_dup(spike_file_t* f);
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int spike_file_truncate(spike_file_t* f, off_t len);
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int spike_file_stat(spike_file_t* f, struct stat* s);
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#endif
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