archives/zig
1
0
Fork 0
mirror of https://codeberg.org/ziglang/zig.git synced 2026-03-08 04:24:33 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

feat(libzigc): add common linux errno syscall helper

Browse source
This commit is contained in:
GasInfinity 2026-01-21 12:02:08 +01:00
parent 4f652fb4e3
commit 1ab6bf59a6
No known key found for this signature in database
2 changed files with 15 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

14
lib/c/common.zig
View file

@ -13,3 +13,17 @@ pub const visibility: std.builtin.SymbolVisibility = if (linkage != .internal)
.hidden
else
.default;
/// Checks whether the syscall has had an error, storing it in `std.c.errno` and returning -1.
/// Otherwise returns the result.
pub fn linuxErrno(r: usize) isize {
const linux = std.os.linux;
return switch (linux.errno(r)) {
.SUCCESS => @bitCast(r),
else => |err| blk: {
std.c._errno().* = @intFromEnum(err);
break :blk -1;
},
};
}

10
lib/c/sys/utsname.zig
View file

@ -13,15 +13,7 @@ comptime {
}
fn unameLinux(uts: *std.os.linux.utsname) callconv(.c) c_int {
const linux = std.os.linux;
return switch (linux.errno(linux.uname(uts))) {
.SUCCESS => 0,
else => |err| blk: {
std.c._errno().* = @intFromEnum(err);
break :blk -1;
},
};
return @intCast(common.linuxErrno(std.os.linux.uname(uts)));
}
fn unameWasi(uts: *std.c.utsname) callconv(.c) c_int {