hare

commit 1749a9a0ebc46a4cfad00791fca871ce48af8873
parent ebb81682f2a1aff982b85ce66279967f0ed1fd6e
Author: Drew DeVault <sir@cmpwn.com>
Date:   Mon,  8 Feb 2021 15:15:38 -0500

os::exec: add fork()

Diffstat:
M
os/exec/+linux.ha
 | 
8
++++++++

1 file changed, 8 insertions(+), 0 deletions(-)
diff --git a/os/exec/+linux.ha b/os/exec/+linux.ha
@@ -10,6 +10,14 @@ export type os_error = struct {
 	data: *void,
 };
 
+// Forks the current process, returning the pid of the child (to the parent) and
+// void (to the child), or an error.
+export fn fork() (int | void | error) = match (rt::fork()) {
+	err: rt::errno => errno_to_os(err),
+	i: int => i,
+	void   => void,
+};
+
 fn errno_errstr(data: *void) str = {
 	const errno = data: uintptr: int: rt::errno;
 	return rt::errstr(errno);