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Add a /dev/pts filesystem and make PTY allocation dynamic.

Browse source 
You can now open as many PTY pairs as you like. Well, it's actually capped
at 8 for now, but it's just a constant and trivial to change.

Unregistering a PTY pair is untested because I didn't want to start
mucking with that in Terminal right now.
This commit is contained in:
Andreas Kling 2019-01-30 00:49:20 +01:00
parent c30e2c8d44
commit e9b948103d
12 changed files with 124 additions and 20 deletions
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6
Kernel/SlavePTY.cpp
View file

@ -1,22 +1,26 @@
#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
{
char buffer[32];
ksprintf(buffer, "/dev/pts%u", m_index);
ksprintf(buffer, "/dev/pts/%u", m_index);
return buffer;
}