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Add basic PTY support.

Browse source 
For now, there are four hard-coded PTYs: /dev/pt{m,s}[0123]
Use this in the Terminal to open a pty pair and spawn a shell.
This commit is contained in:
Andreas Kling 2019-01-15 06:30:19 +01:00
parent ecb4ab0943
commit 2f74c2f430
21 changed files with 287 additions and 10 deletions
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24
VirtualFileSystem/FileDescriptor.cpp
View file

@ -8,6 +8,7 @@
#ifdef SERENITY
#include "TTY.h"
#include "MasterPTY.h"
#endif
RetainPtr<FileDescriptor> FileDescriptor::create(RetainPtr<Vnode>&& vnode)
@ -258,6 +259,29 @@ TTY* FileDescriptor::tty()
return static_cast<TTY*>(device);
return nullptr;
}
bool FileDescriptor::is_master_pty() const
{
if (is_fifo())
return false;
if (auto* device = m_vnode->characterDevice())
return device->is_master_pty();
return false;
}
const MasterPTY* FileDescriptor::master_pty() const
{
if (!is_master_pty())
return nullptr;
return static_cast<const MasterPTY*>(m_vnode->characterDevice());
}
MasterPTY* FileDescriptor::master_pty()
{
if (!is_master_pty())
return nullptr;
return static_cast<MasterPTY*>(m_vnode->characterDevice());
}
#endif
int FileDescriptor::close()