mirror/zig
1
0
Fork 0
mirror of https://github.com/ziglang/zig.git synced 2026-02-13 12:59:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

Some POSIX stuff, including a primitive write

Browse Source
This commit is contained in:
Andrea Orru 2018-03-15 17:57:56 -07:00
parent 681c62941e
commit 4c16deed3e
1 changed files with 40 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
std/os/zen.zig
View File

@ -7,13 +7,21 @@ pub const Message = struct {
receiver: MailboxId,
payload: usize,
pub fn withReceiver(mailbox_id: &const MailboxId) Message {
pub fn from(mailbox_id: &const MailboxId) Message {
return Message {
.sender = undefined,
.receiver = *mailbox_id,
.payload = undefined,
};
}
pub fn to(mailbox_id: &const MailboxId, payload: usize) Message {
return Message {
.sender = MailboxId.This,
.receiver = *mailbox_id,
.payload = payload,
};
}
};
pub const MailboxId = union(enum) {
@ -29,11 +37,40 @@ pub const MailboxId = union(enum) {
///////////////////////////////////////
pub const Service = struct {
pub const Terminal = MailboxId { .Port = 0 };
pub const Keyboard = MailboxId { .Port = 1 };
pub const Keyboard = MailboxId { .Port = 0 };
pub const Terminal = MailboxId { .Port = 1 };
};
////////////////////////
//// POSIX things ////
////////////////////////
// Standard streams.
pub const STDIN_FILENO = 0;
pub const STDOUT_FILENO = 1;
pub const STDERR_FILENO = 2;
// FIXME: let's borrow Linux's error numbers for now.
pub const getErrno = @import("linux/index.zig").getErrno;
use @import("linux/errno.zig");
// TODO: implement this correctly.
pub fn write(fd: i32, buf: &const u8, count: usize) usize {
switch (fd) {
STDIN_FILENO => unreachable,
STDOUT_FILENO, STDERR_FILENO => {
var i: usize = 0;
while (i < count) : (i += 1) {
send(Message.to(Service.Terminal, buf[i]));
}
},
else => unreachable,
}
return count;
}
///////////////////////////
//// Syscall numbers ////
///////////////////////////