96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
#ifndef __LIB_UNISTD_H__
|
|
# define __LIB_UNISTD_H__
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include <fxlibc/sys/types.h>
|
|
|
|
//---
|
|
// Process part
|
|
///---
|
|
/* Get the process ID of the calling process. */
|
|
extern pid_t getpid(void);
|
|
|
|
/* Get the process group ID of the calling process. */
|
|
extern pid_t getpgid(void);
|
|
|
|
/* Get the process ID of the calling process's parent. */
|
|
extern pid_t getppid(void);
|
|
|
|
/*
|
|
** Set the process group ID of the process matching PID to PGID.
|
|
** If PID is zero, the current process's process group ID is set.
|
|
** If PGID is zero, the process ID of the process is used.
|
|
*/
|
|
extern int setpgid(pid_t __pid, pid_t __pgid);
|
|
|
|
// CUSTOM syscall for Vhex (fork() + exeve()) !
|
|
//TODO: move me !!
|
|
extern pid_t fork_execve(const char *pathname, char **argv, char **envp);
|
|
|
|
//---
|
|
// File part
|
|
//---
|
|
/* Standard file descriptors. */
|
|
#define STDIN_FILENO 0 /* Standard input. */
|
|
#define STDOUT_FILENO 1 /* Standard output. */
|
|
#define STDERR_FILENO 2 /* Standard error output. */
|
|
|
|
/*
|
|
** Write N bytes of BUF to FD.
|
|
** Return the number written, or -1.
|
|
*/
|
|
extern ssize_t write(int __fd, const void *__buf, size_t __nbytes);
|
|
|
|
/*
|
|
** Read NBYTES into BUF from FD.
|
|
** Return the number read, -1 for errors or 0 for EOF.
|
|
*/
|
|
extern ssize_t read(int __fd, void *__buf, size_t __nbytes);
|
|
|
|
/*
|
|
** Read NBYTES into BUF from FD at the given position OFFSET without
|
|
** changing the file pointer.
|
|
** Return the number read, -1 for errors or 0 for EOF.
|
|
*/
|
|
extern ssize_t pread (int __fd, void *__buf, size_t __nbytes, off_t __offset);
|
|
|
|
/*
|
|
** Write N bytes of BUF to FD at the given position OFFSET without
|
|
** changing the file pointer.
|
|
** Return the number written, or -1.
|
|
*/
|
|
extern ssize_t pwrite (int __fd, const void *__buf, size_t __n, off_t __offset);
|
|
|
|
/* Values for the WHENCE argument to lseek. */
|
|
#define SEEK_SET 0 /* Seek from beginning of file. */
|
|
#define SEEK_CUR 1 /* Seek from current position. */
|
|
#define SEEK_END 2 /* Seek from end of file. */
|
|
|
|
/*
|
|
** Move FD's file position to OFFSET bytes from the beginning of the file
|
|
** (if WHENCE is SEEK_SET), the current position (if WHENCE is SEEK_CUR),
|
|
** or the end of the file (if WHENCE is SEEK_END).
|
|
** Return the new file position.
|
|
*/
|
|
extern off_t lseek (int __fd, off_t __offset, int __whence);
|
|
|
|
/* Close the file descriptor FD */
|
|
extern int close(int __fd);
|
|
|
|
//---
|
|
// System part
|
|
//---
|
|
/*
|
|
** Get the `_PC_*' symbols for the NAME argument to `pathconf' and `fpathconf';
|
|
** the `_SC_*' symbols for the NAME argument to `sysconf'; and the `_CS_*'
|
|
** symbols for the NAME argument to `confstr'.
|
|
*/
|
|
#include <fxlibc/bits/confname.h>
|
|
|
|
/* Get the value of the system variable NAME. */
|
|
extern long int sysconf(int __name);
|
|
|
|
#endif /*__LIB_UNISTD_H__*/
|