hare

commit c9c76d9a3540d454b1a331d0550e92c0408886ce
parent 88644f79ebf937c2b15477b0228480707aa8afc8
Author: Drew DeVault <sir@cmpwn.com>
Date:   Mon,  8 Nov 2021 13:30:57 +0100

io: add munmap

Signed-off-by: Drew DeVault <sir@cmpwn.com>

Diffstat:
M
io/+freebsd/mmap.ha
 | 
10
++++++++++
M
io/+linux/mmap.ha
 | 
10
++++++++++

2 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/io/+freebsd/mmap.ha b/io/+freebsd/mmap.ha
@@ -45,3 +45,13 @@ export fn mmap(
 		return errors::errno(err);
 	};
 };
+
+// Unmaps memory previously mapped with [[mmap]].
+export fn munmap(addr: *void, length: size) (void | errors::error) = {
+	match (rt::munmap(addr, length)) {
+	case void =>
+		return;
+	case err: rt::errno =>
+		return errors::errno(err);
+	};
+};
diff --git a/io/+linux/mmap.ha b/io/+linux/mmap.ha
@@ -65,3 +65,13 @@ export fn mmap(
 		return errors::errno(err);
 	};
 };
+
+// Unmaps memory previously mapped with [[mmap]].
+export fn munmap(addr: *void, length: size) (void | errors::error) = {
+	match (rt::munmap(addr, length)) {
+	case void =>
+		return;
+	case err: rt::errno =>
+		return errors::errno(err);
+	};
+};