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e9b948103d
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.
30 lines
793 B
C++
30 lines
793 B
C++
#include "PTYMultiplexer.h"
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#include "MasterPTY.h"
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#include <LibC/errno_numbers.h>
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static const unsigned s_max_pty_pairs = 8;
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PTYMultiplexer::PTYMultiplexer()
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: CharacterDevice(5, 2)
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{
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m_freelist.ensure_capacity(s_max_pty_pairs);
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for (int i = s_max_pty_pairs; i > 0; --i)
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m_freelist.unchecked_append(i - 1);
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}
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PTYMultiplexer::~PTYMultiplexer()
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{
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}
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RetainPtr<FileDescriptor> PTYMultiplexer::open(int& error, int options)
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{
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LOCKER(m_lock);
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if (m_freelist.is_empty()) {
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error = -EBUSY;
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return nullptr;
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}
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auto master_index = m_freelist.take_last();
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auto master = adopt(*new MasterPTY(master_index));
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dbgprintf("PTYMultiplexer::open: Vending master %u\n", master->index());
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return VFS::the().open(move(master), error, options);
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}
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