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[Qemu-devel] [PATCH -V4 09/26] hw/9pfs: Add yield support for readdir re
From: |
Aneesh Kumar K.V |
Subject: |
[Qemu-devel] [PATCH -V4 09/26] hw/9pfs: Add yield support for readdir related coroutines |
Date: |
Mon, 8 Aug 2011 22:33:57 +0530 |
This include readdir, telldir, seekdir, rewinddir.
Signed-off-by: Aneesh Kumar K.V <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 a534c1c..faa2a12 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -305,7 +305,7 @@ 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
--
1.7.4.1
- [Qemu-devel] [PATCHSET 1] VirtFS coroutine changes, Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 07/26] [virtio-9p] Remove post functions for v9fs_mkdir., Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 01/26] coroutine: add gthread dependency, Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 05/26] [virtio-9p] clean up v9fs_readlink., Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 06/26] [virtio-9p] coroutines for readlink, Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 09/26] hw/9pfs: Add yield support for readdir related coroutines,
Aneesh Kumar K.V <=
- [Qemu-devel] [PATCH -V4 04/26] [virtio-9p] Remove post functions for v9fs_readlink., Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 03/26] [virtio-9p] Change all pdu handlers to coroutines., Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 10/26] hw/9pfs: Update v9fs_readdir to use coroutines, Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 12/26] hw/9pfs: Update v9fs_statfs to use coroutines, Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 13/26] hw/9pfs: Add yield support to lstat coroutine, Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 02/26] [virtio-9p] Add infrastructure to support glib threads and coroutines., Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 14/26] hw/9pfs: Update v9fs_getattr to use coroutines, Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 15/26] hw/9pfs: Add yield support to setattr related coroutines, Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 17/26] hw/9pfs: Add yield support to xattr related coroutine, Aneesh Kumar K.V, 2011/08/08
- [Qemu-devel] [PATCH -V4 16/26] hw/9pfs: Update v9fs_setattr to use coroutines, Aneesh Kumar K.V, 2011/08/08