X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/48b4a227035048fdebcd32532deb7a857c6199ac..8b3a34da459067723ad288b2eb51a14473e0944f:/lunaix-os/includes/lunaix/process.h?ds=sidebyside

diff --git a/lunaix-os/includes/lunaix/process.h b/lunaix-os/includes/lunaix/process.h
index 25b1d60..d35bfe7 100644
--- a/lunaix-os/includes/lunaix/process.h
+++ b/lunaix-os/includes/lunaix/process.h
@@ -1,73 +1,142 @@
 #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_RUNNING 1
-#define PROC_STOPPED 2
-#define PROC_TERMNAT 3
-#define PROC_DESTROY 4
+#define PS_STOPPED 0
+#define PS_RUNNING 1
+#define PS_TERMNAT 2
+#define PS_DESTROY 4
+#define PS_BLOCKED 8
+#define PS_CREATED 16
+
+#define PROC_TERMINATED(state) (state & 0x6)
 
+#define PROC_FINPAUSE 1
 
-struct proc_mm {
-    heap_context_t k_heap;
+struct proc_mm
+{
     heap_context_t u_heap;
-    struct mm_region* region;
+    struct mm_region regions;
 };
 
-struct proc_info {
+struct proc_sig
+{
+    void* signal_handler;
+    int sig_num;
+    isr_param prev_context;
+};
+
+#define PROC_SIG_SIZE sizeof(struct proc_sig) // size=84
+
+struct proc_info
+{
+    /*
+        Any change to *critical section*, including layout, size
+        must be reflected in kernel/asm/x86/interrupt.S to avoid
+        disaster!
+     */
+
+    /* ---- critical section start ---- */
+
     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;
+
+    /* ---- critical section end ---- */
+
+    struct llist_header siblings;
+    struct llist_header children;
+    struct llist_header grp_member;
+
+    struct
+    {
+        struct llist_header sleepers;
+        time_t wakeup_time;
+        time_t alarm_time;
+    } sleep;
+
+    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;
+    sigset_t sig_inprogress;
+    int flags;
+    void* sig_handler[_SIG_NUM];
+    pid_t pgid;
 };
 
-extern struct proc_info* __current;
+extern volatile struct proc_info* __current;
 
+/**
+ * @brief 分配并初始化一个进程控制块
+ *
+ * @return struct proc_info*
+ */
+struct proc_info*
+alloc_process();
 
-pid_t alloc_pid();
+/**
+ * @brief 初始化进程用户空间
+ *
+ * @param pcb
+ */
+void
+init_proc_user_space(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
+commit_process(struct proc_info* process);
 
-void destroy_process(pid_t pid);
+pid_t
+destroy_process(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 */