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std.Thread: fix posix

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This commit is contained in:
kprotty 2021-06-26 10:52:34 -05:00
parent fd4a607bb2
commit c6fb968a3d
1 changed files with 9 additions and 4 deletions
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13
lib/std/Thread.zig
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@ -376,11 +376,16 @@ const PosixThreadImpl = struct {
fn spawn(config: SpawnConfig, comptime f: anytype, args: anytype) !Impl {
const Args = @TypeOf(args);
const allocator = std.heap.c_allocator;
const Instance = struct {
fn entryFn(raw_arg: ?*c_void) callconv(.C) ?*c_void {
const args_ptr = @ptrCast(*Args, @alignCast(@alignOf(Args), raw_arg orelse unreachable));
defer allocator.destroy(args_ptr);
return callFn(f, args_ptr.*);
if (@sizeOf(Args) < 1) {
return callFn(f, @as(Args, undefined));
}
const args_ptr = @ptrCast(*Args, @alignCast(@alignOf(Args), raw_arg));
defer allocator.destroy(args_ptr);
return callFn(f, args_ptr.*);
}
};
@ -402,7 +407,7 @@ const PosixThreadImpl = struct {
&handle,
&attr,
Instance.entryFn,
@ptrCast(*c_void, args_ptr),
if (@sizeOf(Args) > 1) @ptrCast(*c_void, args_ptr) else undefined,
)) {
0 => return Impl{ .handle = handle },
os.EAGAIN => return error.SystemResources,