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Added per-task curdir. and chdir, pager_read/write, mmap and munmap calls.

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They look like what they should look like, but untested.
This commit is contained in:
Bahadir Balban
2008-02-20 00:50:03 +00:00
parent a160f6f151
commit f078116901
15 changed files with 200 additions and 59 deletions
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2
tasks/fs0/include/fs.h
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@@ -86,7 +86,7 @@ struct dentry {
struct list_head children; /* List of children dentries */
struct list_head vref; /* For vnode's dirent reference list */
struct list_head cache_list; /* Dentry cache reference */
struct vnode *vnode; /* The vnode associated with dirent */
struct vnode *vnode; /* The vnode associated with dentry */
struct dentry_ops ops;
};

13
tasks/fs0/include/syscalls.h
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@@ -6,9 +6,16 @@
#ifndef __FS0_SYSCALLS_H__
#define __FS0_SYSCALLS_H__
/* Posix calls */
int sys_open(l4id_t sender, char *pathname, int flags, u32 mode);
int sys_read(l4id_t sender, int fd, void *buf, int cnt);
int sys_write(l4id_t sender, int fd, void *buf, int cnt);
int sys_lseek(l4id_t sender, int fd, unsigned long offset, int whence);
int sys_readdir(l4id_t sender, int fd, void *buf, int count);
int sys_mkdir(l4id_t sender, const char *pathname, unsigned int mode);
int sys_chdir(l4id_t sender, const char *pathname);
/* Calls from pager that completes a posix call */
int pager_sys_read(l4id_t sender, unsigned long vnum, unsigned long f_offset,
unsigned long npages, void *pagebuf);
int pager_sys_write(l4id_t sender, unsigned long vnum, unsigned long f_offset,
unsigned long npages, void *pagebuf);
#endif /* __FS0_SYSCALLS_H__ */

2
tasks/fs0/include/task.h
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@@ -18,6 +18,8 @@ struct tcb {
struct list_head list;
int fd[TASK_OFILES_MAX];
struct id_pool *fdpool;
struct vnode *curdir;
struct vnode *rootdir;
};
struct tcb *find_task(int tid);

3
tasks/fs0/include/vfs.h
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@@ -7,6 +7,7 @@
#include <memfs/memfs.h>
#include <l4/macros.h>
#include <stdio.h>
#include <task.h>
extern struct list_head vnode_cache;
extern struct list_head dentry_cache;
@@ -92,7 +93,7 @@ extern struct vfs_mountpoint vfs_root;
int vfs_mount_root(struct superblock *sb);
struct vnode *generic_vnode_lookup(struct vnode *thisnode, char *path);
struct vnode *vfs_lookup_bypath(struct superblock *sb, char *path);
struct vnode *vfs_lookup_bypath(struct tcb *task, char *path);
struct vnode *vfs_lookup_byvnum(struct superblock *sb, unsigned long vnum);
#endif /* __VFS_H__ */