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feat(pty): add multithread support

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Adds the option `use_threads` to PTY (enabled by default) which improves
performance when enabled. For example, running `time cat file.txt` where
file is ~4.5MB will take ~0.250s with threads enabled, versus >20s when
disabled.
This commit is contained in:
Leroy Hopson 2024-03-02 13:20:33 +13:00
parent 46f3aa12bf
commit a0c9777264
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GPG key ID: D2747312A6DB51AA
3 changed files with 118 additions and 42 deletions
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17
addons/godot_xterm/native/src/pty.h
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@ -3,8 +3,11 @@
#pragma once
#include <godot_cpp/classes/mutex.hpp>
#include <godot_cpp/classes/node.hpp>
#include <godot_cpp/classes/os.hpp>
#include <godot_cpp/classes/semaphore.hpp>
#include <godot_cpp/classes/thread.hpp>
#include <uv.h>
namespace godot
@ -52,6 +55,9 @@ namespace godot
bool get_use_os_env() const;
void set_use_os_env(const bool value);
void set_use_threads(bool p_use);
bool is_using_threads() const;
String get_pts() const;
Error fork(const String &file = "", const PackedStringArray &args = PackedStringArray(), const String &cwd = ".", const int cols = 80, const int rows = 24);
@ -62,7 +68,6 @@ namespace godot
void write(const Variant &data) const;
void _notification(int p_what);
void _run(uv_run_mode mode);
protected:
static void _bind_methods();
@ -85,11 +90,21 @@ namespace godot
void _on_exit(int exit_code, int exit_signal);
void _close();
Ref<Thread> thread;
Ref<Mutex> buffer_write_mutex;
Ref<Semaphore> buffer_cleared;
PackedByteArray buffer;
SafeFlag stop_thread;
uv_async_t async_handle;
bool use_threads;
void _thread_func();
#if defined(__linux__) || defined(__APPLE__)
uv_pipe_t pipe;
Error _pipe_open(const int fd);
#endif
static void _read_cb(uv_stream_t *pipe, ssize_t nread, const uv_buf_t *buf);
static Error uv_err_to_godot_err(const int uv_err);
};
} // namespace godot