sfw/sfwl/core/thread.h
2024-01-19 22:37:03 +01:00

105 lines
2.6 KiB
C++

//--STRIP
#ifndef THREAD_H
#define THREAD_H
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/*************************************************************************/
/* thread.h */
/* From https://github.com/Relintai/pandemonium_engine (MIT) */
/*************************************************************************/
//--STRIP
#include "core/typedefs.h"
#if !defined(NO_THREADS)
#include "core/safe_refcount.h"
#endif
//--STRIP
#if !defined(NO_THREADS)
#include <thread>
#endif
class String;
class Thread {
public:
typedef void (*Callback)(void *p_userdata);
typedef uint64_t ID;
enum Priority {
PRIORITY_LOW,
PRIORITY_NORMAL,
PRIORITY_HIGH
};
struct Settings {
Priority priority;
Settings() { priority = PRIORITY_NORMAL; }
};
private:
#if !defined(NO_THREADS)
friend class Main;
static ID main_thread_id;
static uint64_t _thread_id_hash(const std::thread::id &p_t);
ID id = _thread_id_hash(std::thread::id());
std::thread thread;
static void callback(Thread *p_self, const Settings &p_settings, Thread::Callback p_callback, void *p_userdata);
static Error (*set_name_func)(const String &);
static void (*set_priority_func)(Thread::Priority);
static void (*init_func)();
static void (*term_func)();
#endif
public:
static void _set_platform_funcs(
Error (*p_set_name_func)(const String &),
void (*p_set_priority_func)(Thread::Priority),
void (*p_init_func)() = nullptr,
void (*p_term_func)() = nullptr);
#if !defined(NO_THREADS)
_FORCE_INLINE_ ID get_id() const { return id; }
// get the ID of the caller thread
static ID get_caller_id();
// get the ID of the main thread
_FORCE_INLINE_ static ID get_main_id() { return main_thread_id; }
_FORCE_INLINE_ static bool is_main_thread() { return get_caller_id() == main_thread_id; }
static Error set_name(const String &p_name);
void start(Thread::Callback p_callback, void *p_user, const Settings &p_settings = Settings());
bool is_started() const;
///< waits until thread is finished, and deallocates it.
void wait_to_finish();
~Thread();
#else
_FORCE_INLINE_ ID get_id() const { return 0; }
// get the ID of the caller thread
_FORCE_INLINE_ static ID get_caller_id() { return 0; }
// get the ID of the main thread
_FORCE_INLINE_ static ID get_main_id() { return 0; }
_FORCE_INLINE_ static bool is_main_thread() { return true; }
static Error set_name(const String &p_name) { return ERR_UNAVAILABLE; }
void start(Thread::Callback p_callback, void *p_user, const Settings &p_settings = Settings()) {}
bool is_started() const { return false; }
void wait_to_finish() {}
#endif
};
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#endif // THREAD_H
//--STRIP