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// See LICENSE for license details.
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#ifndef _FILE_H
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#define _FILE_H
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#include <sys/stat.h>
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#include <machine/syscall.h>
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#include "atomic.h"
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typedef struct file
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{
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int kfd; // file descriptor on the appserver side
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atomic_t refcnt;
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} file_t;
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extern file_t *stdin, *stdout, *stderr;
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file_t* file_get(int fd);
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file_t* file_open(const char* fn, int flags, int mode);
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void file_decref(file_t*);
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void file_incref(file_t*);
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int file_dup(file_t*);
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ssize_t file_pwrite(file_t* f, const void* buf, size_t n, off_t off);
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ssize_t file_pread(file_t* f, void* buf, size_t n, off_t off);
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ssize_t file_write(file_t* f, const void* buf, size_t n);
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ssize_t file_read(file_t* f, void* buf, size_t n);
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ssize_t file_lseek(file_t* f, size_t ptr, int dir);
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int file_stat(file_t* f, struct stat* s);
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int fd_close(int fd);
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void file_init();
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#endif
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