1 2 /* 3 * Virtio 9p backend 4 * 5 * Copyright IBM, Corp. 2011 6 * 7 * Authors: 8 * Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> 9 * 10 * This work is licensed under the terms of the GNU GPL, version 2. See 11 * the COPYING file in the top-level directory. 12 * 13 */ 14 15 #include "fsdev/qemu-fsdev.h" 16 #include "qemu-thread.h" 17 #include "qemu-coroutine.h" 18 #include "virtio-9p-coth.h" 19 20 int v9fs_co_readdir(V9fsState *s, V9fsFidState *fidp, struct dirent **dent) 21 { 22 int err; 23 24 v9fs_co_run_in_worker( 25 { 26 errno = 0; 27 /*FIXME!! need to switch to readdir_r */ 28 *dent = s->ops->readdir(&s->ctx, fidp->fs.dir); 29 if (!*dent && errno) { 30 err = -errno; 31 } else { 32 err = 0; 33 } 34 }); 35 return err; 36 } 37 38 off_t v9fs_co_telldir(V9fsState *s, V9fsFidState *fidp) 39 { 40 off_t err; 41 42 v9fs_co_run_in_worker( 43 { 44 err = s->ops->telldir(&s->ctx, fidp->fs.dir); 45 if (err < 0) { 46 err = -errno; 47 } 48 }); 49 return err; 50 } 51 52 void v9fs_co_seekdir(V9fsState *s, V9fsFidState *fidp, off_t offset) 53 { 54 v9fs_co_run_in_worker( 55 { 56 s->ops->seekdir(&s->ctx, fidp->fs.dir, offset); 57 }); 58 } 59 60 void v9fs_co_rewinddir(V9fsState *s, V9fsFidState *fidp) 61 { 62 v9fs_co_run_in_worker( 63 { 64 s->ops->rewinddir(&s->ctx, fidp->fs.dir); 65 }); 66 } 67 68 int v9fs_co_mkdir(V9fsState *s, char *name, mode_t mode, uid_t uid, gid_t gid) 69 { 70 int err; 71 FsCred cred; 72 73 cred_init(&cred); 74 cred.fc_mode = mode; 75 cred.fc_uid = uid; 76 cred.fc_gid = gid; 77 v9fs_co_run_in_worker( 78 { 79 err = s->ops->mkdir(&s->ctx, name, &cred); 80 if (err < 0) { 81 err = -errno; 82 } 83 }); 84 return err; 85 } 86