Kernel: Move TTY-related files into Kernel/TTY/.

Kernel/TTY/SlavePTY.cpp

@@ -0,0 +1,65 @@
+#include "SlavePTY.h"
+#include "MasterPTY.h"
+#include <Kernel/FileSystem/DevPtsFS.h>
+#include <Kernel/Process.h>
+
+//#define SLAVEPTY_DEBUG
+
+SlavePTY::SlavePTY(MasterPTY& master, unsigned index)
+    : TTY(11, index)
+    , m_master(master)
+    , m_index(index)
+{
+    set_uid(current->process().uid());
+    set_gid(current->process().gid());
+    DevPtsFS::the().register_slave_pty(*this);
+    set_size(80, 25);
+}
+
+SlavePTY::~SlavePTY()
+{
+#ifdef SLAVEPTY_DEBUG
+    dbgprintf("~SlavePTY(%u)\n", m_index);
+#endif
+    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, ssize_t size)
+{
+    for (ssize_t i = 0; i < size; ++i)
+        emit(buffer[i]);
+}
+
+ssize_t SlavePTY::on_tty_write(const byte* data, ssize_t size)
+{
+    return m_master->on_slave_write(data, size);
+}
+
+bool SlavePTY::can_write(Process&) const
+{
+    return m_master->can_write_from_slave();
+}
+
+bool SlavePTY::can_read(Process& process) const
+{
+    if (m_master->is_closed())
+        return true;
+    return TTY::can_read(process);
+}
+
+ssize_t SlavePTY::read(Process& process, byte* buffer, ssize_t size)
+{
+    if (m_master->is_closed())
+        return 0;
+    return TTY::read(process, buffer, size);
+}
+
+void SlavePTY::close()
+{
+    m_master->notify_slave_closed(Badge<SlavePTY>());
+}