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Kernel: Introduce threads, and refactor everything in support of it.

Browse source 
The scheduler now operates on threads, rather than on processes.
Each process has a main thread, and can have any number of additional
threads. The process exits when the main thread exits.

This patch doesn't actually spawn any additional threads, it merely
does all the plumbing needed to make it possible. :^)
This commit is contained in:
Andreas Kling 2019-03-23 22:03:17 +01:00
parent b0de6aa8d8
commit 60d25f0f4a
32 changed files with 1356 additions and 1098 deletions
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13
Kernel/Scheduler.h
View file

@ -3,11 +3,12 @@
#include <AK/Assertions.h>
class Process;
class Thread;
struct RegisterDump;
extern Process* current;
extern Process* g_last_fpu_process;
extern Process* g_finalizer;
extern Thread* current;
extern Thread* g_last_fpu_thread;
extern Thread* g_finalizer;
class Scheduler {
public:
@ -17,9 +18,9 @@ public:
static void pick_next_and_switch_now();
static void switch_now();
static bool yield();
static bool donate_to(Process*, const char* reason);
static bool context_switch(Process&);
static void prepare_to_modify_tss(Process&);
static bool donate_to(Thread*, const char* reason);
static bool context_switch(Thread&);
static void prepare_to_modify_tss(Thread&);
static Process* colonel();
static bool is_active();
private: