54 lines
1.2 KiB
Plaintext
54 lines
1.2 KiB
Plaintext
// issue-0017: Investigate data corruption in callconv(.c) callbacks
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// when accessing struct methods on global pointers.
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#import "modules/std.sx";
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Pipe :: struct {
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pw: s32;
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ph: s32;
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frame: s32;
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resize :: (self: *Pipe, nw: s32, nh: s32) {
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self.pw = nw;
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self.ph = nh;
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}
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tick :: (self: *Pipe) {
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self.frame = self.frame + 1;
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}
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}
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g_pipe : *Pipe = ---;
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g_width : s32 = 800;
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g_height : s32 = 600;
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do_render :: () {
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g_pipe.resize(g_width, g_height);
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g_pipe.tick();
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print("wrapper: pw={}, ph={}, frame={}\n", g_pipe.pw, g_pipe.ph, g_pipe.frame);
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}
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callback_inline :: (userdata: *void, code: s64) -> bool callconv(.c) {
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g_width = xx code;
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g_height = xx (code + 1);
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g_pipe.resize(xx g_width, xx g_height);
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g_pipe.tick();
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print("inline: pw={}, ph={}, frame={}\n", g_pipe.pw, g_pipe.ph, g_pipe.frame);
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true;
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}
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callback_wrapper :: (userdata: *void, code: s64) -> bool callconv(.c) {
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g_width = xx code;
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g_height = xx (code + 1);
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do_render();
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true;
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}
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main :: () {
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pipe := Pipe.{ pw = 0, ph = 0, frame = 0 };
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g_pipe = @pipe;
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callback_inline(xx 0, 320);
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callback_wrapper(xx 0, 640);
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}
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