ladybird/Kernel/SlavePTY.cpp
Andreas Kling 027d26cd5d Add a String::format() and use that in place of ksprintf() in the Kernel.
You're never gonna be right 100% of the time when guessing how much buffer
space you need. This avoids having to make that type of decision in a bunch
of cases. :^)
2019-01-30 16:28:51 +01:00

39 lines
802 B
C++

#include "SlavePTY.h"
#include "MasterPTY.h"
#include "DevPtsFS.h"
SlavePTY::SlavePTY(MasterPTY& master, unsigned index)
: TTY(11, index)
, m_master(master)
, m_index(index)
{
VFS::the().register_character_device(*this);
DevPtsFS::the().register_slave_pty(*this);
set_size(80, 25);
}
SlavePTY::~SlavePTY()
{
DevPtsFS::the().unregister_slave_pty(*this);
}
String SlavePTY::tty_name() const
{
return String::format("/dev/pts/%u", m_index);
}
void SlavePTY::on_master_write(const byte* buffer, size_t size)
{
for (size_t i = 0; i < size; ++i)
emit(buffer[i]);
}
void SlavePTY::on_tty_write(const byte* data, size_t size)
{
m_master.on_slave_write(data, size);
}
bool SlavePTY::can_write(Process&) const
{
return m_master.can_write_from_slave();
}