#ifndef __LUNAIX_PROCESS_H
#define __LUNAIX_PROCESS_H
-#include <arch/x86/interrupts.h>
#include <lunaix/clock.h>
#include <lunaix/ds/waitq.h>
#include <lunaix/fs.h>
#include <lunaix/timer.h>
#include <lunaix/types.h>
#include <stdint.h>
+#include <sys/interrupts.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 PS_GrBP (PS_PAUSED | PS_BLOCKED)
#define PS_GrDT (PS_TERMNAT | PS_DESTROY)
-#define PROC_TERMINATED(state) ((state)&PS_GrDT)
-#define PROC_HANGED(state) ((state)&PS_BLOCKED)
-#define PROC_RUNNABLE(state) ((state)&PS_PAUSED)
-
-#define PROC_FINPAUSE 1
-
-struct proc_sigstate
-{
- isr_param proc_regs;
- char fxstate[512] __attribute__((aligned(16)));
-};
+#define proc_terminated(proc) (((proc)->state) & PS_GrDT)
+#define proc_hanged(proc) (((proc)->state) & PS_BLOCKED)
+#define proc_runnable(proc) (((proc)->state) & PS_PAUSED)
struct sigact
{
int sig_num;
void* sigact;
void* sighand;
- struct proc_sigstate prev_context;
+ isr_param* saved_ictx;
} __attribute__((packed));
struct proc_info
{
/*
Any change to *critical section*, including layout, size
- must be reflected in kernel/asm/x86/interrupt.S to avoid
+ must be reflected in arch/i386/interrupt.S.inc to avoid
disaster!
*/
/* ---- critical section start ---- */
- pid_t pid; // offset = 0
- struct proc_info* parent; // offset = 4
- isr_param* intr_ctx; // offset = 8
- ptr_t ustack_top; // offset = 84 -> 56 -> 60 -> 12
- ptr_t page_table; // offset = 88 -> 60 -> 64 -> 16
- void* fxstate; // offset = 92 -> 64 -> 68 -> 20
+ pid_t pid;
+ struct proc_info* parent;
+ isr_param* intr_ctx;
+ ptr_t ustack_top;
+ ptr_t page_table;
/* ---- critical section end ---- */
u8_t state;
int32_t exit_code;
int32_t k_status;
- int flags;
struct sighail sigctx;
struct v_fdtable* fdtable;
struct v_dnode* cwd;
void
proc_setsignal(struct proc_info* proc, int signum);
+void
+proc_clear_signal(struct proc_info* proc);
+
+// enable interrupt upon transfer
+#define TRANSFER_IE 1
+
+/**
+ * @brief Setup process initial context, used to initiate first switch
+ *
+ * @param proc
+ * @param stop
+ * @param target
+ * @param flags
+ */
+void
+proc_init_transfer(struct proc_info* proc, ptr_t stop, ptr_t target, int flags);
+
#endif /* __LUNAIX_PROCESS_H */