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https://github.com/RGBCube/serenity
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08cd75ac4b
After reading a bunch of POSIX specs, I've learned that a file descriptor is the number that refers to a file description, not the description itself. So this patch renames FileDescriptor to FileDescription, and Process now has FileDescription* file_description(int fd).
62 lines
1.1 KiB
C++
62 lines
1.1 KiB
C++
#include <Kernel/Console.h>
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#include <Kernel/IO.h>
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#include <Kernel/kstdio.h>
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// Bytes output to 0xE9 end up on the Bochs console. It's very handy.
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#define CONSOLE_OUT_TO_E9
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static Console* s_the;
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Console& Console::the()
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{
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ASSERT(s_the);
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return *s_the;
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}
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Console::Console()
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: CharacterDevice(5, 1)
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{
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s_the = this;
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}
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Console::~Console()
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{
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}
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bool Console::can_read(FileDescription&) const
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{
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return false;
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}
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ssize_t Console::read(FileDescription&, byte*, ssize_t)
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{
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// FIXME: Implement reading from the console.
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// Maybe we could use a ring buffer for this device?
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return 0;
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}
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ssize_t Console::write(FileDescription&, const byte* data, ssize_t size)
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{
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if (!size)
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return 0;
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if (!m_implementation)
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return 0;
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for (ssize_t i = 0; i < size; ++i)
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put_char(data[i]);
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return size;
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}
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void Console::put_char(char ch)
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{
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#ifdef CONSOLE_OUT_TO_E9
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//if (ch != 27)
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IO::out8(0xe9, ch);
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#endif
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m_logbuffer.enqueue(ch);
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if (m_implementation)
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m_implementation->on_sysconsole_receive(ch);
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}
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ConsoleImplementation::~ConsoleImplementation()
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{
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}
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