Module syscalls

This module exposes SafaOS’s syscalls and their rust counterparts

Modules

types

Contains documentation-only types for syscall arguments

Enums

SyscallNum

defines Syscall numbers

Functions

chdir

Changes the current work dir to path

close

Closes the file with the resource id fd

create

Creates the file with the path path

createdir

Creates the directory with the path path

diriter_close

Closes the directory iterator with the resource id fd

diriter_next

Gets the next directory entry from a directory iterator,

diriter_open

Opens a directory iterator for the directory with the resource id dir_ri, returns the resource id of the directory iterator

dup

Duplicates the resource refered to by the resource id ri and returns the new resource id

exit

fattrs

Gets the file attributes of the file with the resource id fd

fsize

Gets the size of the file with the resource id fd

getcwd

Retrives the current work dir

getdirentry

open

Opens the path path and returns the resource id of the file descriptor

pspawn

same as unsafe_pspawn but safe because it makes it clear that argv is consumed`

read

Reads buf.len() bytes from the file with the resource id fd at offset offset into buf

reboot

sbrk

Increases the range of the process’s data break by size bytes returns the new break pointer

shutdown

sync

Syncs the resource with the resource id ri

syschdir

Changes the current working directory to the path buf with length buf_len (expects given buffer to be utf-8)

sysclose

Closes the file with the resource id fd

syscreate_dir

Creates the directory with the path path

syscreate_file

Creates the file with the path path path must be valid utf-8

sysdiriter_close

Closes a directory iterator

sysdiriter_next

Gets the next directory entry from a directory iterator,

sysdiriter_open

Opens a directory iterator for the directory with the resource id dir_ri

sysdup

Duplicates the resource refered to by the resource id ri and puts the new resource id in dest_ri

sysexit

Exits the process with the exit code code

sysfattrs

Gets the file attributes of the file with the resource id fd and puts them in dest_attrs

sysfsize

Gets the size of the file with the resource id fd and puts it in dest_size

sysgetcwd

Gets the current working directory and puts it in cwd_buf with length cwd_buf_len if dest_len is not null, it will be set to the length of the cwd if the cwd is too long to fit in cwd_buf, the syscall will return ErrorStatus::Generic (1) the cwd is currently maximumally 1024 bytes

sysgetdirentry

Gets the directory entry for the path path and puts it in dest_direntry path must be valid utf-8 if dest_direntry is not null, it will be set to the directory entry

sysopen

Opens the file with the path path and puts the resource id in dest_fd

sysread

Reads len bytes from the file with the resource id fd at offset offset into buf

sysreboot

Reboots the system

syssbrk

Increases the range of the process’s data break by size bytes and puts the new break pointer in target_ptr

sysshutdown

Shuts down the system

syssync

Syncs the resource with the resource id fd

systruncate

Truncates the file with the resource id fd to len bytes

syswait

Waits for the process with the resource id pid to exit if exit_code is not null, it will be set to the exit code of the process

syswrite

Writes len bytes from buf to the file with the resource id fd at offset offset

sysyield

Switches to the next process/thread

truncate

Truncates the file with the resource id fd to len bytes

unsafe_pspawn^⚠

spawns a new process

wait

Waits for the process with the resource id pid to exit and returns the exit code of the process

write

Writes buf.len() bytes from buf to the file with the resource id fd at offset offset and returns the number of bytes written

yield_now