#ifndef __LIB_USER_SYSCALL_H
#define __LIB_USER_SYSCALL_H
#include "stdint.h"
#include "fs.h"
#include "thread.h"

enum SYSCALL_NR {
   SYS_GETPID,
   SYS_WRITE,
   SYS_MALLOC,
   SYS_FREE,
   SYS_FORK,
   SYS_READ,
   SYS_PUTCHAR,
   SYS_CLEAR,
   SYS_GETCWD,
   SYS_OPEN,
   SYS_CLOSE,
   SYS_LSEEK,
   SYS_UNLINK,
   SYS_MKDIR,
   SYS_OPENDIR,
   SYS_CLOSEDIR,
   SYS_CHDIR,
   SYS_RMDIR,
   SYS_READDIR,
   SYS_REWINDDIR,
   SYS_STAT,
   SYS_PS,
   SYS_EXECV,
   SYS_EXIT,
   SYS_WAIT,
   SYS_PIPE
};
uint32_t getpid(void);
uint32_t write(int32_t fd, const void* buf, uint32_t count);
void* malloc(uint32_t size);
void free(void* ptr);
int16_t fork(void);
int32_t read(int32_t fd, void* buf, uint32_t count);
void putchar(char char_asci);
void clear(void);
char* getcwd(char* buf, uint32_t size);
int32_t open(char* pathname, uint8_t flag);
int32_t close(int32_t fd);
int32_t lseek(int32_t fd, int32_t offset, uint8_t whence);
int32_t unlink(const char* pathname);
int32_t mkdir(const char* pathname);
struct dir* opendir(const char* name);
int32_t closedir(struct dir* dir);
int32_t rmdir(const char* pathname);
struct dir_entry* readdir(struct dir* dir);
void rewinddir(struct dir* dir);
int32_t stat(const char* path, struct stat* buf);
int32_t chdir(const char* path);
void ps(void);
int32_t execv(const char* pathname, char** argv);
void exit(int32_t status);
pid_t wait(int32_t* status);
int32_t pipe(int32_t pipefd[2]);
#endif