#ifndef __LUNAIX_PROCESS_H
#define __LUNAIX_PROCESS_H
-#include <stdint.h>
#include <arch/x86/interrupts.h>
-#include <lunaix/mm/mm.h>
-#include <lunaix/types.h>
#include <lunaix/clock.h>
+#include <lunaix/mm/mm.h>
+#include <lunaix/signal.h>
#include <lunaix/timer.h>
+#include <lunaix/types.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_STOPPED 0
-#define PROC_RUNNING 1
-#define PROC_TERMNAT 2
-#define PROC_DESTROY 4
-#define PROC_BLOCKED 8
-#define PROC_CREATED 16
+#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_TERMMASK 0x6
+#define PROC_TERMINATED(state) (state & 0x6)
+#define PROC_FINPAUSE 1
-struct proc_mm {
+struct proc_mm
+{
heap_context_t u_heap;
- struct mm_region* regions;
+ 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;
struct proc_info* parent;
- isr_param intr_ctx;
+ 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;
- void* page_table;
time_t created;
uint8_t state;
int32_t exit_code;
int32_t k_status;
- struct lx_timer* timer;
+ sigset_t sig_pending;
+ sigset_t sig_mask;
+ sigset_t sig_inprogress;
+ int flags;
+ void* sig_handler[_SIG_NUM];
+ pid_t pgid;
};
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();
-
-void init_proc(struct proc_info *pcb);
+/**
+ * @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);
-pid_t destroy_process(pid_t pid);
+pid_t
+destroy_process(pid_t pid);
-void setup_proc_mem(struct proc_info* proc, uintptr_t kstack_from);
+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)
- *
+ *
*/
-pid_t 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_proc(int exit_code);
+void
+terminate_proc(int exit_code);
-int orphaned_proc(pid_t pid);
+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 */