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Merge pull request #1199 from mitchellh/termio-surface-dl

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termio/exec: avoid potential deadlock with surface message
This commit is contained in:
Mitchell Hashimoto
2024-01-02 15:44:48 -08:00
committed by GitHub
parent 143de07aaa 797da2f737
commit f79a4d32f7
1 changed files with 19 additions and 13 deletions
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32
src/termio/Exec.zig
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@ -1695,6 +1695,19 @@ const StreamHandler = struct {
try self.ev.queueRender();
}
inline fn surfaceMessageWriter(
self: *StreamHandler,
msg: apprt.surface.Message,
) void {
// See messageWriter which has similar logic and explains why
// we may have to do this.
if (self.ev.surface_mailbox.push(msg, .{ .instant = {} }) == 0) {
self.ev.renderer_state.mutex.unlock();
defer self.ev.renderer_state.mutex.lock();
_ = self.ev.surface_mailbox.push(msg, .{ .forever = {} });
}
}
inline fn messageWriter(self: *StreamHandler, msg: termio.Message) void {
// Try to write to the mailbox with an instant timeout. This is the
// fast path because we can queue without a lock.
@ -2487,10 +2500,7 @@ const StreamHandler = struct {
// Mark that we've seen a title
self.ev.seen_title = true;
_ = self.ev.surface_mailbox.push(.{
.set_title = buf,
}, .{ .forever = {} });
self.surfaceMessageWriter(.{ .set_title = buf });
}
pub fn setMouseShape(
@ -2502,9 +2512,7 @@ const StreamHandler = struct {
if (self.terminal.mouse_shape == shape) return;
self.terminal.mouse_shape = shape;
_ = self.ev.surface_mailbox.push(.{
.set_mouse_shape = shape,
}, .{ .forever = {} });
self.surfaceMessageWriter(.{ .set_mouse_shape = shape });
}
pub fn clipboardContents(self: *StreamHandler, kind: u8, data: []const u8) !void {
@ -2521,14 +2529,12 @@ const StreamHandler = struct {
// Get clipboard contents
if (data.len == 1 and data[0] == '?') {
_ = self.ev.surface_mailbox.push(.{
.clipboard_read = clipboard_type,
}, .{ .forever = {} });
self.surfaceMessageWriter(.{ .clipboard_read = clipboard_type });
return;
}
// Write clipboard contents
_ = self.ev.surface_mailbox.push(.{
self.surfaceMessageWriter(.{
.clipboard_write = .{
.req = try apprt.surface.Message.WriteReq.init(
self.alloc,
@ -2536,7 +2542,7 @@ const StreamHandler = struct {
),
.clipboard_type = clipboard_type,
},
}, .{ .forever = {} });
});
}
pub fn promptStart(self: *StreamHandler, aid: ?[]const u8, redraw: bool) !void {
@ -2808,6 +2814,6 @@ const StreamHandler = struct {
@memcpy(message.desktop_notification.body[0..body_len], body[0..body_len]);
message.desktop_notification.body[body_len] = 0;
_ = self.ev.surface_mailbox.push(message, .{ .forever = {} });
self.surfaceMessageWriter(message);
}
};