refactor: keep in mind the stack layout is crucial. Move context switching & signal...

[lunaix-os.git] / lunaix-os / includes / lunaix / process.h

diff --git a/lunaix-os/includes/lunaix/process.h b/lunaix-os/includes/lunaix/process.h
index efa11666674b9602bdc07100d8bd6bc35fe2896b..0b743d39c3058fff0d1d61b702ff149ae3a67d78 100644 (file)
--- a/lunaix-os/includes/lunaix/process.h
+++ b/lunaix-os/includes/lunaix/process.h
@@ -1,74 +1,110 @@
 #ifndef __LUNAIX_PROCESS_H
 #define __LUNAIX_PROCESS_H
 
-#include <stdint.h>
 #include <arch/x86/interrupts.h>
+#include <lunaix/clock.h>
 #include <lunaix/mm/mm.h>
+#include <lunaix/signal.h>
+#include <lunaix/timer.h>
 #include <lunaix/types.h>
-#include <lunaix/clock.h>
+#include <stdint.h>
 
 // 虽然内核不是进程，但为了区分，这里使用Pid=-1来指代内核。这主要是方便物理页所有权检查。
 #define KERNEL_PID -1
 
-#define PROC_CREATED 0
+#define PROC_STOPPED 0
 #define PROC_RUNNING 1
-#define PROC_STOPPED 2
-#define PROC_TERMNAT 3
+#define PROC_TERMNAT 2
 #define PROC_DESTROY 4
+#define PROC_BLOCKED 8
+#define PROC_CREATED 16
 
+#define PROC_TERMMASK 0x6
 
-struct proc_mm {
+struct proc_mm
+{
     heap_context_t u_heap;
-    struct mm_region* region;
+    struct mm_region* regions;
+};
+
+struct proc_sig
+{
+    void* signal_handler;
+    int sig_num;
+    isr_param prev_context;
 };
 
-struct proc_info {
+#define PROC_SIG_SIZE sizeof(struct proc_sig) // size=84
+
+struct proc_info
+{
     pid_t pid;
-    pid_t parent;
-    isr_param intr_ctx;
-    struct proc_mm mm;
+    struct proc_info* parent;
+    isr_param intr_ctx; // size=76
+    uintptr_t ustack_top;
     void* page_table;
+    struct llist_header siblings;
+    struct llist_header children;
+    struct llist_header grp_member;
+    struct proc_mm mm;
     time_t created;
-    time_t parent_created;
     uint8_t state;
     int32_t exit_code;
     int32_t k_status;
+    sigset_t sig_pending;
+    sigset_t sig_mask;
+    void* sig_handler[_SIG_NUM];
+    pid_t pgid;
+    struct lx_timer* timer;
 };
 
-extern struct proc_info* __current;
+extern volatile struct proc_info* __current;
 
+pid_t
+alloc_pid();
 
-pid_t alloc_pid();
+void
+init_proc(struct proc_info* pcb);
 
 /**
  * @brief 向系统发布一个进程，使其可以被调度。
- * 
- * @param process 
+ *
+ * @param process
  */
-void push_process(struct proc_info* process);
+void
+push_process(struct proc_info* process);
 
-void destroy_process(pid_t pid);
+pid_t
+destroy_process(pid_t pid);
 
-void* dup_pagetable(pid_t pid);
+void
+setup_proc_mem(struct proc_info* proc, uintptr_t kstack_from);
 
 /**
  * @brief 复制当前进程（LunaixOS的类 fork (unix) 实现）
- * 
+ *
  */
-void dup_proc();
+pid_t
+dup_proc();
 
 /**
  * @brief 创建新进程（LunaixOS的类 CreateProcess (Windows) 实现）
- * 
+ *
  */
-void new_proc();
+void
+new_proc();
 
 /**
  * @brief 终止（退出）当前进程
- * 
+ *
  */
-void terminate_process(int exit_code);
+void
+terminate_proc(int exit_code);
+
+int
+orphaned_proc(pid_t pid);
 
-struct proc_info* get_process(pid_t pid);
+struct proc_info*
+get_process(pid_t pid);
 
 #endif /* __LUNAIX_PROCESS_H */