syscall.h File Reference

#include <stdbool.h>
#include <debug.h>

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Macros
#define	PID_ERROR   ((pid_t) -1)
#define	MAP_FAILED   ((mapid_t) -1)
#define	READDIR_MAX_LEN   14
	Maximum characters in a filename written by readdir(). More...
#define	EXIT_SUCCESS   0
	Typical return values from main() and arguments to exit(). More...
#define	EXIT_FAILURE   1
	Unsuccessful execution. More...

Typedefs
typedef int	pid_t
	Process identifier. More...
typedef int	mapid_t
	Map region identifier. More...

Functions
void	halt (void) NO_RETURN
	Projects 2 and later. More...
void	exit (int status) NO_RETURN
pid_t	exec (const char *file)
int	wait (pid_t)
bool	create (const char *file, unsigned initial_size)
bool	remove (const char *file)
int	open (const char *file)
int	filesize (int fd)
int	read (int fd, void *buffer, unsigned length)
int	write (int fd, const void *buffer, unsigned length)
void	seek (int fd, unsigned position)
unsigned	tell (int fd)
void	close (int fd)
mapid_t	mmap (int fd, void *addr)
	Project 3 and optionally project 4. More...
void	munmap (mapid_t)
bool	chdir (const char *dir)
	Project 4 only. More...
bool	mkdir (const char *dir)
bool	readdir (int fd, char name[READDIR_MAX_LEN+1])
bool	isdir (int fd)
int	inumber (int fd)
	lib/user/syscall.h More...

Macro Definition Documentation

EXIT_FAILURE

#define EXIT_FAILURE   1

Unsuccessful execution.

Definition at line 20 of file syscall.h.

EXIT_SUCCESS

#define EXIT_SUCCESS   0

Typical return values from main() and arguments to exit().

Successful execution.

Definition at line 19 of file syscall.h.

MAP_FAILED

#define MAP_FAILED   ((mapid_t) -1)

Definition at line 13 of file syscall.h.

PID_ERROR

#define PID_ERROR   ((pid_t) -1)

Definition at line 9 of file syscall.h.

READDIR_MAX_LEN

#define READDIR_MAX_LEN   14

Maximum characters in a filename written by readdir().

Definition at line 16 of file syscall.h.

Typedef Documentation

mapid_t

typedef int mapid_t

Map region identifier.

Definition at line 12 of file syscall.h.

pid_t

typedef int pid_t

Process identifier.

Definition at line 8 of file syscall.h.

Function Documentation

chdir()

bool chdir

(

const char *

dir

)

Project 4 only.

Definition at line 157 of file syscall.c.

References SYS_CHDIR, and syscall1.

Referenced by main(), and test_main().

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close()

void close

(

int

fd

)

Definition at line 139 of file syscall.c.

References SYS_CLOSE, and syscall1.

Referenced by archive_file(), check_file(), get_inumber(), getcwd(), handle_error(), list_dir(), main(), make_tar_archive(), make_tree(), seq_test(), sort_chunks(), test_main(), and try_write().

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create()

bool create	(	const char *	file,
		unsigned	initial_size
	)

Definition at line 91 of file syscall.c.

References SYS_CREATE, and syscall2.

Referenced by do_touch(), lookup_page(), main(), make_tar_archive(), seq_test(), sort_chunks(), and test_main().

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exec()

pid_t exec

(

const char *

file

)

Definition at line 79 of file syscall.c.

References SYS_EXEC, and syscall1.

Referenced by exec_children(), main(), sort_chunks(), spawn_child(), and test_main().

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exit()

void exit

(

int

status

)

Definition at line 72 of file syscall.c.

References NOT_REACHED, SYS_EXIT, and syscall1.

Referenced by _start(), consume_some_resources_and_die(), debug_panic(), fail(), fail_io(), main(), relay(), test_main(), and usage().

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filesize()

int filesize

(

int

fd

)

Definition at line 109 of file syscall.c.

References SYS_FILESIZE, and syscall1.

Referenced by archive_ordinary_file(), check_file_handle(), check_file_size(), list_dir(), and main().

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halt()

void halt

(

void

)

Projects 2 and later.

Definition at line 65 of file syscall.c.

References NOT_REACHED, SYS_HALT, and syscall0.

Referenced by main(), and test_main().

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inumber()

int inumber

(

int

fd

)

lib/user/syscall.h

Definition at line 181 of file syscall.c.

References SYS_INUMBER, and syscall1.

Referenced by archive_file(), get_inumber(), getcwd(), list_dir(), and test_main().

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isdir()

bool isdir

(

int

fd

)

Definition at line 175 of file syscall.c.

References SYS_ISDIR, and syscall1.

Referenced by archive_file(), and list_dir().

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mkdir()

bool mkdir

(

const char *

dir

)

Definition at line 163 of file syscall.c.

References SYS_MKDIR, and syscall1.

Referenced by do_mkdir(), main(), and test_main().

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mmap()

mapid_t mmap	(	int	fd,
		void *	addr
	)

Project 3 and optionally project 4.

Definition at line 145 of file syscall.c.

References SYS_MMAP, and syscall2.

Referenced by main(), and test_main().

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munmap()

void munmap

(

mapid_t

)

Definition at line 151 of file syscall.c.

References SYS_MUNMAP, and syscall1.

Referenced by main(), and test_main().

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open()

int open

(

const char *

file

)

Definition at line 103 of file syscall.c.

References SYS_OPEN, and syscall1.

Referenced by archive_file(), check_file(), consume_some_resources(), consume_some_resources_and_die(), get_inumber(), getcwd(), list_dir(), main(), make_tar_archive(), make_tree(), remove_tree(), seq_test(), sort_chunks(), test_main(), try_write(), and wrap_open().

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read()

int read	(	int	fd,
		void *	buffer,
		unsigned	length
	)

Definition at line 115 of file syscall.c.

References buffer, SYS_READ, and syscall3.

Referenced by archive_ordinary_file(), check_file_handle(), main(), read_line(), relay(), sort_chunks(), and test_main().

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readdir()

bool readdir	(	int	fd,
		char	name[READDIR_MAX_LEN+1]
	)

Definition at line 169 of file syscall.c.

References name, SYS_READDIR, and syscall2.

Referenced by archive_directory(), getcwd(), list_dir(), and test_main().

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remove()

bool remove

(

const char *

file

)

Definition at line 97 of file syscall.c.

References SYS_REMOVE, and syscall1.

Referenced by do_remove(), main(), and test_main().

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seek()

void seek	(	int	fd,
		unsigned	position
	)

Definition at line 127 of file syscall.c.

References SYS_SEEK, and syscall2.

Referenced by main(), and test_main().

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tell()

unsigned tell

(

int

fd

)

Definition at line 133 of file syscall.c.

References SYS_TELL, and syscall1.

Referenced by check_tell(), and main().

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wait()

int wait

(

pid_t

)

Definition at line 85 of file syscall.c.

References SYS_WAIT, and syscall1.

write()

int write	(	int	fd,
		const void *	buffer,
		unsigned	length
	)

Definition at line 121 of file syscall.c.

References buffer, SYS_WRITE, and syscall3.

Referenced by do_write(), flush(), main(), page_fault(), putchar(), puts(), relay(), seq_test(), sigchld_handler(), sort_chunks(), test_main(), try_write(), vmsg(), and write_some_bytes().

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