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7a7956a595
We now make three VirtualConsoles at boot: tty0, tty1, and tty2. We launch an instance of /bin/sh in each one. You switch between them with Alt+1/2/3 How very very cool :^)
40 lines
720 B
C++
40 lines
720 B
C++
#include "TTY.h"
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TTY::TTY(unsigned major, unsigned minor)
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: CharacterDevice(major, minor)
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{
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}
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TTY::~TTY()
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{
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}
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ssize_t TTY::read(byte* buffer, size_t size)
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{
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ssize_t nread = min(m_buffer.size(), size);
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memcpy(buffer, m_buffer.data(), nread);
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if (nread == m_buffer.size())
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m_buffer.clear();
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else {
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dbgprintf("had %u, read %u\n", m_buffer.size(), nread);
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ASSERT_NOT_REACHED();
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}
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return nread;
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}
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ssize_t TTY::write(const byte* buffer, size_t size)
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{
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for (size_t i = 0; i < size; ++i)
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onTTYWrite(buffer[i]);
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return 0;
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}
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bool TTY::hasDataAvailableForRead() const
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{
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return !m_buffer.isEmpty();
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}
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void TTY::emit(byte ch)
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{
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m_buffer.append(ch);
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}
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