os_linux.v

vlib/os/os_linux.v

@@ -0,0 +1,48 @@
+// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+
+module os
+
+const (
+	PROT_READ = 1
+	PROT_WRITE = 2
+	
+	MAP_PRIVATE = 0x02
+	MAP_ANONYMOUS = 0x20
+)
+
+
+/*
+// TODO no pub => error
+pub fn write(fd int, data voidptr, nbytes int) int {
+	return syscall5(
+          1, // SYS_write
+          fd,
+          data,
+          nbytes,
+          0, // ignored
+          0  // ignored
+	)
+}
+
+pub fn println(s string) {
+	write(1, (s + '\n').str, s.len)
+}
+
+fn mmap(start voidptr, len, prot, flags, fd, off int) byteptr {
+	return syscall6(9, start, len, prot, flags, fd, off) // sys_mmap
+}	
+
+pub fn malloc(n int) byteptr {
+	println('malloc($n)')
+	return mmap(0, n, 3, 		4098, //PROT_READ|PROT_WRITE,
+	 -1,0)			//MAP_PRIVATE|MAP_ANONYMOUS,
+}
+
+pub fn free(b byteptr) {
+	
+}
+*/
+
+