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Made changes to have shared tcb parts in fs0 in preparation for clone()

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fs_data and files structures can now be shared in the vfs task.
Currently no means to free shared structures in tcb destruction. Need to add that.
This commit is contained in:
Bahadir Balban
2008-11-09 10:07:24 +02:00
parent 5468c1833d
commit 63fb907cd0
13 changed files with 189 additions and 78 deletions
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22
tasks/fs0/src/syscalls.c
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@@ -46,12 +46,12 @@ int pager_sys_open(struct tcb *pager, l4id_t opener, int fd)
return -ESRCH;
/* Check if that fd has been opened */
if (task->fd[fd] == NILFD)
if (task->files->fd[fd] == NILFD)
return -EBADF;
/* Search the vnode by that vnum */
if (IS_ERR(v = vfs_lookup_byvnum(vfs_root.pivot->sb,
task->fd[fd])))
task->files->fd[fd])))
return (int)v;
/*
@@ -119,12 +119,12 @@ int pager_sys_close(struct tcb *sender, l4id_t closer, int fd)
BUG_ON(!(task = find_task(closer)));
if ((err = id_del(task->fdpool, fd)) < 0) {
if ((err = id_del(task->files->fdpool, fd)) < 0) {
printf("%s: Error releasing fd identifier.\n",
__FUNCTION__);
return err;
}
task->fd[fd] = NILFD;
task->files->fd[fd] = NILFD;
return 0;
}
@@ -166,11 +166,11 @@ int sys_open(struct tcb *task, const char *pathname, int flags, unsigned int mod
}
/* Get a new fd */
BUG_ON((fd = id_new(task->fdpool)) < 0);
BUG_ON((fd = id_new(task->files->fdpool)) < 0);
retval = fd;
/* Assign the new fd with the vnode's number */
task->fd[fd] = v->vnum;
task->files->fd[fd] = v->vnum;
out:
pathdata_destroy(pdata);
@@ -226,7 +226,7 @@ int sys_chdir(struct tcb *task, const char *pathname)
}
/* Assign the current directory pointer */
task->curdir = v;
task->fs_data->curdir = v;
out:
/* Destroy extracted path data */
@@ -254,10 +254,10 @@ int sys_fstat(struct tcb *task, int fd, void *statbuf)
unsigned long vnum;
/* Get the vnum */
if (fd < 0 || fd > TASK_FILES_MAX || task->fd[fd] == NILFD)
if (fd < 0 || fd > TASK_FILES_MAX || task->files->fd[fd] == NILFD)
return -EBADF;
vnum = task->fd[fd];
vnum = task->files->fd[fd];
/* Lookup vnode */
if (!(v = vfs_lookup_byvnum(vfs_root.pivot->sb, vnum)))
@@ -437,10 +437,10 @@ int sys_readdir(struct tcb *t, int fd, void *buf, int count)
(unsigned long)buf > t->utcb_address + PAGE_SIZE)
return -EINVAL;
if (fd < 0 || fd > TASK_FILES_MAX || t->fd[fd] == NILFD)
if (fd < 0 || fd > TASK_FILES_MAX || t->files->fd[fd] == NILFD)
return -EBADF;
vnum = t->fd[fd];
vnum = t->files->fd[fd];
/* Lookup vnode */
if (!(v = vfs_lookup_byvnum(vfs_root.pivot->sb, vnum)))