refactor: mount system reworked

[lunaix-os.git] / lunaix-os / kernel / sched.c

diff --git a/lunaix-os/kernel/sched.c b/lunaix-os/kernel/sched.c
index 12deb174e7c90cc3fe5b6bd07055075d21f6e3ad..f8f00d40a094d62c31976cd4d54ef577673ba6de 100644 (file)
--- a/lunaix-os/kernel/sched.c
+++ b/lunaix-os/kernel/sched.c
@@ -6,6 +6,7 @@
 
 #include <lunaix/mm/kalloc.h>
 #include <lunaix/mm/pmm.h>
 
 #include <lunaix/mm/kalloc.h>
 #include <lunaix/mm/pmm.h>

+#include <lunaix/mm/valloc.h>

 #include <lunaix/mm/vmm.h>
 #include <lunaix/process.h>
 #include <lunaix/sched.h>
 #include <lunaix/mm/vmm.h>
 #include <lunaix/process.h>
 #include <lunaix/sched.h>


@@ -59,7 +60,8 @@ run(struct proc_info* proc)
     apic_done_servicing();
 
     asm volatile("pushl %0\n"
     apic_done_servicing();
 
     asm volatile("pushl %0\n"

-                 "jmp switch_to\n" ::"r"(proc)); // kernel/asm/x86/interrupt.S
+                 "jmp switch_to\n" ::"r"(proc)
+                 : "memory"); // kernel/asm/x86/interrupt.S

 }
 
 int
 }
 
 int


@@ -143,6 +145,12 @@ redo:
     run(next);
 }
 
     run(next);
 }
 

+void
+sched_yieldk()
+{
+    cpu_int(LUNAIX_SCHED);
+}
+

 __DEFINE_LXSYSCALL1(unsigned int, sleep, unsigned int, seconds)
 {
     if (!seconds) {
 __DEFINE_LXSYSCALL1(unsigned int, sleep, unsigned int, seconds)
 {
     if (!seconds) {


@@ -201,6 +209,11 @@ __DEFINE_LXSYSCALL3(pid_t, waitpid, pid_t, pid, int*, status, int, options)
     return _wait(pid, status, options);
 }
 
     return _wait(pid, status, options);
 }
 

+__DEFINE_LXSYSCALL(int, geterrno)
+{
+    return __current->k_status;
+}
+

 pid_t
 _wait(pid_t wpid, int* status, int options)
 {
 pid_t
 _wait(pid_t wpid, int* status, int options)
 {


@@ -212,7 +225,6 @@ _wait(pid_t wpid, int* status, int options)
     }
 
     wpid = wpid ? wpid : -__current->pgid;
     }
 
     wpid = wpid ? wpid : -__current->pgid;

-    cpu_enable_interrupt();

 repeat:
     llist_for_each(proc, n, &__current->children, siblings)
     {
 repeat:
     llist_for_each(proc, n, &__current->children, siblings)
     {


@@ -231,13 +243,14 @@ repeat:
         return 0;
     }
     // 放弃当前的运行机会
         return 0;
     }
     // 放弃当前的运行机会

-    sched_yield();
+    sched_yieldk();

     goto repeat;
 
 done:
     goto repeat;
 
 done:

-    cpu_disable_interrupt();

     status_flags |= PEXITSIG * (proc->sig_inprogress != 0);
     status_flags |= PEXITSIG * (proc->sig_inprogress != 0);

-    *status = proc->exit_code | status_flags;
+    if (status) {
+        *status = proc->exit_code | status_flags;
+    }

     return destroy_process(proc->pid);
 }
 
     return destroy_process(proc->pid);
 }
 


@@ -264,8 +277,9 @@ alloc_process()
     proc->pid = i;
     proc->created = clock_systime();
     proc->pgid = proc->pid;
     proc->pid = i;
     proc->created = clock_systime();
     proc->pgid = proc->pid;

+    proc->fdtable = vzalloc(sizeof(struct v_fdtable));

 
 

-    llist_init_head(&proc->mm.regions);
+    llist_init_head(&proc->mm.regions.head);

     llist_init_head(&proc->children);
     llist_init_head(&proc->grp_member);
     llist_init_head(&proc->sleep.sleepers);
     llist_init_head(&proc->children);
     llist_init_head(&proc->grp_member);
     llist_init_head(&proc->sleep.sleepers);


@@ -279,7 +293,7 @@ commit_process(struct proc_info* process)
     assert(process == &sched_ctx._procs[process->pid]);
 
     if (process->state != PS_CREATED) {
     assert(process == &sched_ctx._procs[process->pid]);
 
     if (process->state != PS_CREATED) {

-        __current->k_status = LXINVL;
+        __current->k_status = EINVAL;

         return;
     }
 
         return;
     }
 


@@ -302,17 +316,25 @@ destroy_process(pid_t pid)
 {
     int index = pid;
     if (index <= 0 || index > sched_ctx.ptable_len) {
 {
     int index = pid;
     if (index <= 0 || index > sched_ctx.ptable_len) {

-        __current->k_status = LXINVLDPID;
+        __current->k_status = EINVAL;

         return;
     }
     struct proc_info* proc = &sched_ctx._procs[index];
     proc->state = PS_DESTROY;
     llist_delete(&proc->siblings);
 
         return;
     }
     struct proc_info* proc = &sched_ctx._procs[index];
     proc->state = PS_DESTROY;
     llist_delete(&proc->siblings);
 

+    for (size_t i = 0; i < VFS_MAX_FD; i++) {
+        struct v_fd* fd = proc->fdtable->fds[i];
+        if (fd)
+            vfs_close(fd->file);
+    }
+
+    vfree(proc->fdtable);
+

     struct mm_region *pos, *n;
     llist_for_each(pos, n, &proc->mm.regions.head, head)
     {
     struct mm_region *pos, *n;
     llist_for_each(pos, n, &proc->mm.regions.head, head)
     {

-        lxfree(pos);
+        vfree(pos);

     }
 
     vmm_mount_pd(PD_MOUNT_1, proc->page_table);
     }
 
     vmm_mount_pd(PD_MOUNT_1, proc->page_table);