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win32: make sure bytes_read/written is set to 0 on error
If we fail to PeekMessage or PostMessage we should make sure that the output parameter bytes_read/written is set 0 instead of being left uninitialized. This fixes an assertion in the io channel call where the following invariant is checked: (status == G_IO_STATUS_NORMAL) || (read_size == 0)
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@ -1033,7 +1033,9 @@ g_io_win32_msg_read (GIOChannel *channel,
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{
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GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
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MSG msg; /* In case of alignment problems */
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*bytes_read = 0;
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if (count < sizeof (MSG))
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{
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g_set_error_literal (err, G_IO_CHANNEL_ERROR, G_IO_CHANNEL_ERROR_INVAL,
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@ -1062,7 +1064,9 @@ g_io_win32_msg_write (GIOChannel *channel,
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{
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GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
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MSG msg;
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*bytes_written = 0;
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if (count != sizeof (MSG))
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{
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g_set_error_literal (err, G_IO_CHANNEL_ERROR, G_IO_CHANNEL_ERROR_INVAL,
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