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[Qemu-devel] [V3 08/24] hw/9pfs: Add yield support for readdir related c
From: |
Venkateswararao Jujjuri (JV) |
Subject: |
[Qemu-devel] [V3 08/24] hw/9pfs: Add yield support for readdir related coroutines |
Date: |
Wed, 18 May 2011 19:56:58 -0700 |
From: Aneesh Kumar K.V <address@hidden>
This include readdir, telldir, seekdir, rewinddir.
Signed-off-by: Aneesh Kumar K.V <address@hidden>
Signed-off-by: Venkateswararao Jujjuri "<address@hidden>
---
Makefile.objs | 2 +-
hw/9pfs/codir.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++
hw/9pfs/virtio-9p-coth.h | 5 +++
3 files changed, 72 insertions(+), 1 deletions(-)
create mode 100644 hw/9pfs/codir.c
diff --git a/Makefile.objs b/Makefile.objs
index 36005bb..614bcaf 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -297,7 +297,7 @@ hw-obj-$(CONFIG_SOUND) += $(sound-obj-y)
9pfs-nested-$(CONFIG_VIRTFS) = virtio-9p.o virtio-9p-debug.o
9pfs-nested-$(CONFIG_VIRTFS) += virtio-9p-local.o virtio-9p-xattr.o
9pfs-nested-$(CONFIG_VIRTFS) += virtio-9p-xattr-user.o virtio-9p-posix-acl.o
-9pfs-nested-$(CONFIG_VIRTFS) += virtio-9p-coth.o cofs.o
+9pfs-nested-$(CONFIG_VIRTFS) += virtio-9p-coth.o cofs.o codir.o
hw-obj-$(CONFIG_REALLY_VIRTFS) += $(addprefix 9pfs/, $(9pfs-nested-y))
$(addprefix 9pfs/, $(9pfs-nested-y)): QEMU_CFLAGS+=$(GLIB_CFLAGS)
diff --git a/hw/9pfs/codir.c b/hw/9pfs/codir.c
new file mode 100644
index 0000000..47b10df
--- /dev/null
+++ b/hw/9pfs/codir.c
@@ -0,0 +1,66 @@
+
+/*
+ * Virtio 9p backend
+ *
+ * Copyright IBM, Corp. 2011
+ *
+ * Authors:
+ * Aneesh Kumar K.V <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include "fsdev/qemu-fsdev.h"
+#include "qemu-thread.h"
+#include "qemu-coroutine.h"
+#include "virtio-9p-coth.h"
+
+int v9fs_co_readdir(V9fsState *s, V9fsFidState *fidp, struct dirent **dent)
+{
+ int err;
+
+ v9fs_co_run_in_worker(
+ {
+ errno = 0;
+ /*FIXME!! need to switch to readdir_r */
+ *dent = s->ops->readdir(&s->ctx, fidp->fs.dir);
+ if (!*dent && errno) {
+ err = -errno;
+ } else {
+ err = 0;
+ }
+ });
+ return err;
+}
+
+off_t v9fs_co_telldir(V9fsState *s, V9fsFidState *fidp)
+{
+ off_t err;
+
+ v9fs_co_run_in_worker(
+ {
+ err = s->ops->telldir(&s->ctx, fidp->fs.dir);
+ if (err < 0) {
+ err = -errno;
+ }
+ });
+ return err;
+}
+
+void v9fs_co_seekdir(V9fsState *s, V9fsFidState *fidp, off_t offset)
+{
+ v9fs_co_run_in_worker(
+ {
+ s->ops->seekdir(&s->ctx, fidp->fs.dir, offset);
+ });
+}
+
+void v9fs_co_rewinddir(V9fsState *s, V9fsFidState *fidp)
+{
+ v9fs_co_run_in_worker(
+ {
+ s->ops->rewinddir(&s->ctx, fidp->fs.dir);
+ });
+}
diff --git a/hw/9pfs/virtio-9p-coth.h b/hw/9pfs/virtio-9p-coth.h
index 94c5147..9aa5953 100644
--- a/hw/9pfs/virtio-9p-coth.h
+++ b/hw/9pfs/virtio-9p-coth.h
@@ -57,4 +57,9 @@ typedef struct V9fsThPool {
extern void co_run_in_worker_bh(void *);
extern int v9fs_init_worker_threads(void);
extern int v9fs_co_readlink(V9fsState *, V9fsString *, V9fsString *);
+extern int v9fs_co_readdir(V9fsState *, V9fsFidState *,
+ struct dirent **);
+extern off_t v9fs_co_telldir(V9fsState *, V9fsFidState *);
+extern void v9fs_co_seekdir(V9fsState *, V9fsFidState *, off_t);
+extern void v9fs_co_rewinddir(V9fsState *, V9fsFidState *);
#endif
--
1.7.1
- [Qemu-devel] [V3 0/24] Async threading for VirtFS using glib threads & coroutines., Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 03/24] [virtio-9p] Remove post functions for v9fs_readlink., Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 02/24] [virtio-9p] Change all pdu handlers to coroutines., Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 06/24] [virtio-9p] Remove post functions for v9fs_mkdir., Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 09/24] hw/9pfs: Update v9fs_readdir to use coroutines, Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 05/24] [virtio-9p] coroutines for readlink, Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 10/24] hw/9pfs: Add yield support to statfs coroutine, Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 04/24] [virtio-9p] clean up v9fs_readlink., Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 07/24] [virtio-9p] clean up v9fs_mkdir., Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 08/24] hw/9pfs: Add yield support for readdir related coroutines,
Venkateswararao Jujjuri (JV) <=
- [Qemu-devel] [V3 11/24] hw/9pfs: Update v9fs_statfs to use coroutines, Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 12/24] hw/9pfs: Add yield support to lstat coroutine, Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 15/24] hw/9pfs: Update v9fs_setattr to use coroutines, Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 14/24] hw/9pfs: Add yield support to setattr related coroutines, Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 13/24] hw/9pfs: Update v9fs_getattr to use coroutines, Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 01/24] [virtio-9p] Add infrastructure to support glib threads and coroutines., Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 17/24] hw/9pfs: Update v9fs_xattrwalk to coroutines, Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 18/24] hw/9pfs: Update v9fs_xattrcreate to use coroutines, Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 16/24] hw/9pfs: Add yield support to xattr related coroutine, Venkateswararao Jujjuri (JV), 2011/05/18
- [Qemu-devel] [V3 20/24] hw/9pfs: Update v9fs_mknod to use coroutines, Venkateswararao Jujjuri (JV), 2011/05/18