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Allow character devices to block write attempts until there is more space.

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This commit is contained in:
Andreas Kling 2019-01-15 09:17:22 +01:00
parent 49b63281a0
commit e452303c66
21 changed files with 39 additions and 7 deletions
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5
Kernel/MasterPTY.cpp
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@ -36,6 +36,11 @@ bool MasterPTY::has_data_available_for_reading(Process&) const
return !m_buffer.is_empty();
}
bool MasterPTY::can_write(Process&) const
{
return m_buffer.bytes_in_write_buffer() < 4096;
}
void MasterPTY::on_slave_write(const byte* data, size_t size)
{
m_buffer.write(data, size);