Split the reading of libvirt's save image metadata from the opening
of the fd that will be passed to QEMU. This provides flexibility for
an upcoming patch adding mapped-ram support for restore.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
---
src/qemu/qemu_driver.c | 37 ++++++++--------
src/qemu/qemu_saveimage.c | 89 ++++++++++++++++++++++++---------------
src/qemu/qemu_saveimage.h | 16 ++++---
src/qemu/qemu_snapshot.c | 9 ++--
4 files changed, 89 insertions(+), 62 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 716eddba09..5afc2ea846 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -5792,9 +5792,12 @@ qemuDomainRestoreInternal(virConnectPtr conn,
if (flags & VIR_DOMAIN_SAVE_RESET_NVRAM)
reset_nvram = true;
- fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
+ if (qemuSaveImageGetMetadata(driver, NULL, path, &def, &data, false) < 0)
+ goto cleanup;
+
+ fd = qemuSaveImageOpen(driver, path,
(flags & VIR_DOMAIN_SAVE_BYPASS_CACHE) != 0,
- &wrapperFd, false, false);
+ &wrapperFd, false);
if (fd < 0)
goto cleanup;
@@ -5923,15 +5926,11 @@ qemuDomainSaveImageGetXMLDesc(virConnectPtr conn, const char *path,
virQEMUDriver *driver = conn->privateData;
char *ret = NULL;
g_autoptr(virDomainDef) def = NULL;
- int fd = -1;
virQEMUSaveData *data = NULL;
virCheckFlags(VIR_DOMAIN_SAVE_IMAGE_XML_SECURE, NULL);
- fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
- false, NULL, false, false);
-
- if (fd < 0)
+ if (qemuSaveImageGetMetadata(driver, NULL, path, &def, &data, false) < 0)
goto cleanup;
if (virDomainSaveImageGetXMLDescEnsureACL(conn, def) < 0)
@@ -5941,7 +5940,6 @@ qemuDomainSaveImageGetXMLDesc(virConnectPtr conn, const char *path,
cleanup:
virQEMUSaveDataFree(data);
- VIR_FORCE_CLOSE(fd);
return ret;
}
@@ -5965,8 +5963,10 @@ qemuDomainSaveImageDefineXML(virConnectPtr conn, const char *path,
else if (flags & VIR_DOMAIN_SAVE_PAUSED)
state = 0;
- fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
- false, NULL, true, false);
+ if (qemuSaveImageGetMetadata(driver, NULL, path, &def, &data, false) < 0)
+ goto cleanup;
+
+ fd = qemuSaveImageOpen(driver, path, 0, NULL, false);
if (fd < 0)
goto cleanup;
@@ -6024,7 +6024,6 @@ qemuDomainManagedSaveGetXMLDesc(virDomainPtr dom, unsigned int flags)
g_autofree char *path = NULL;
char *ret = NULL;
g_autoptr(virDomainDef) def = NULL;
- int fd = -1;
virQEMUSaveData *data = NULL;
qemuDomainObjPrivate *priv;
@@ -6046,15 +6045,14 @@ qemuDomainManagedSaveGetXMLDesc(virDomainPtr dom, unsigned int flags)
goto cleanup;
}
- if ((fd = qemuSaveImageOpen(driver, priv->qemuCaps, path, &def, &data,
- false, NULL, false, false)) < 0)
+ if (qemuSaveImageGetMetadata(driver, priv->qemuCaps, path,
+ &def, &data, false) < 0)
goto cleanup;
ret = qemuDomainDefFormatXML(driver, priv->qemuCaps, def, flags);
cleanup:
virQEMUSaveDataFree(data);
- VIR_FORCE_CLOSE(fd);
virDomainObjEndAPI(&vm);
return ret;
}
@@ -6110,14 +6108,17 @@ qemuDomainObjRestore(virConnectPtr conn,
virQEMUSaveData *data = NULL;
virFileWrapperFd *wrapperFd = NULL;
- fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
- bypass_cache, &wrapperFd, false, true);
- if (fd < 0) {
- if (fd == -3)
+ ret = qemuSaveImageGetMetadata(driver, NULL, path, &def, &data, true);
+ if (ret < 0) {
+ if (ret == -3)
ret = 1;
goto cleanup;
}
+ fd = qemuSaveImageOpen(driver, path, bypass_cache, &wrapperFd, false);
+ if (fd < 0)
+ goto cleanup;
+
if (virHookPresent(VIR_HOOK_DRIVER_QEMU)) {
int hookret;
diff --git a/src/qemu/qemu_saveimage.c b/src/qemu/qemu_saveimage.c
index 245bbf9dfc..3a71c23c01 100644
--- a/src/qemu/qemu_saveimage.c
+++ b/src/qemu/qemu_saveimage.c
@@ -536,58 +536,35 @@ qemuSaveImageGetCompressionProgram(const char *imageFormat,
/**
- * qemuSaveImageOpen:
+ * qemuSaveImageGetMetadata:
* @driver: qemu driver data
* @qemuCaps: pointer to qemuCaps if the domain is running or NULL
* @path: path of the save image
* @ret_def: returns domain definition created from the XML stored in the image
* @ret_data: returns structure filled with data from the image header
- * @bypass_cache: bypass cache when opening the file
- * @wrapperFd: returns the file wrapper structure
- * @open_write: open the file for writing (for updates)
* @unlink_corrupt: remove the image file if it is corrupted
*
- * Returns the opened fd of the save image file and fills the appropriate fields
- * on success. On error returns -1 on most failures, -3 if corrupt image was
- * unlinked (no error raised).
+ * Open the save image file, read libvirt's save image metadata, and populate
+ * the @ret_def and @ret_data structures. Returns 0 on success and -1 on most
+ * failures. Returns -3 if corrupt image was unlinked (no error raised).
*/
int
-qemuSaveImageOpen(virQEMUDriver *driver,
- virQEMUCaps *qemuCaps,
- const char *path,
- virDomainDef **ret_def,
- virQEMUSaveData **ret_data,
- bool bypass_cache,
- virFileWrapperFd **wrapperFd,
- bool open_write,
- bool unlink_corrupt)
+qemuSaveImageGetMetadata(virQEMUDriver *driver,
+ virQEMUCaps *qemuCaps,
+ const char *path,
+ virDomainDef **ret_def,
+ virQEMUSaveData **ret_data,
+ bool unlink_corrupt)
{
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
VIR_AUTOCLOSE fd = -1;
- int ret = -1;
g_autoptr(virQEMUSaveData) data = NULL;
virQEMUSaveHeader *header;
g_autoptr(virDomainDef) def = NULL;
- int oflags = open_write ? O_RDWR : O_RDONLY;
size_t xml_len;
size_t cookie_len;
- if (bypass_cache) {
- int directFlag = virFileDirectFdFlag();
- if (directFlag < 0) {
- virReportError(VIR_ERR_OPERATION_FAILED, "%s",
- _("bypass cache unsupported by this system"));
- return -1;
- }
- oflags |= directFlag;
- }
-
- if ((fd = qemuDomainOpenFile(cfg, NULL, path, oflags, NULL)) < 0)
- return -1;
-
- if (bypass_cache &&
- !(*wrapperFd = virFileWrapperFdNew(&fd, path,
- VIR_FILE_WRAPPER_BYPASS_CACHE)))
+ if ((fd = qemuDomainOpenFile(cfg, NULL, path, O_RDONLY, NULL)) < 0)
return -1;
data = g_new0(virQEMUSaveData, 1);
@@ -685,6 +662,50 @@ qemuSaveImageOpen(virQEMUDriver *driver,
*ret_def = g_steal_pointer(&def);
*ret_data = g_steal_pointer(&data);
+ return 0;
+}
+
+
+/**
+ * qemuSaveImageOpen:
+ * @driver: qemu driver data
+ * @path: path of the save image
+ * @bypass_cache: bypass cache when opening the file
+ * @wrapperFd: returns the file wrapper structure
+ * @open_write: open the file for writing (for updates)
+ *
+ * Returns the opened fd of the save image file on success, -1 on failure.
+ */
+int
+qemuSaveImageOpen(virQEMUDriver *driver,
+ const char *path,
+ bool bypass_cache,
+ virFileWrapperFd **wrapperFd,
+ bool open_write)
+{
+ g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOCLOSE fd = -1;
+ int ret = -1;
+ int oflags = open_write ? O_RDWR : O_RDONLY;
+
+ if (bypass_cache) {
+ int directFlag = virFileDirectFdFlag();
+ if (directFlag < 0) {
+ virReportError(VIR_ERR_OPERATION_FAILED, "%s",
+ _("bypass cache unsupported by this system"));
+ return -1;
+ }
+ oflags |= directFlag;
+ }
+
+ if ((fd = qemuDomainOpenFile(cfg, NULL, path, oflags, NULL)) < 0)
+ return -1;
+
+ if (bypass_cache &&
+ !(*wrapperFd = virFileWrapperFdNew(&fd, path,
+ VIR_FILE_WRAPPER_BYPASS_CACHE)))
+ return -1;
+
ret = fd;
fd = -1;
diff --git a/src/qemu/qemu_saveimage.h b/src/qemu/qemu_saveimage.h
index 481e280d75..7340925274 100644
--- a/src/qemu/qemu_saveimage.h
+++ b/src/qemu/qemu_saveimage.h
@@ -89,17 +89,21 @@ qemuSaveImageStartVM(virConnectPtr conn,
virDomainAsyncJob asyncJob)
ATTRIBUTE_NONNULL(4) ATTRIBUTE_NONNULL(5) ATTRIBUTE_NONNULL(6);
+int
+qemuSaveImageGetMetadata(virQEMUDriver *driver,
+ virQEMUCaps *qemuCaps,
+ const char *path,
+ virDomainDef **ret_def,
+ virQEMUSaveData **ret_data,
+ bool unlink_corrupt)
+ ATTRIBUTE_NONNULL(4) ATTRIBUTE_NONNULL(5);
+
int
qemuSaveImageOpen(virQEMUDriver *driver,
- virQEMUCaps *qemuCaps,
const char *path,
- virDomainDef **ret_def,
- virQEMUSaveData **ret_data,
bool bypass_cache,
virFileWrapperFd **wrapperFd,
- bool open_write,
- bool unlink_corrupt)
- ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4);
+ bool open_write);
int
qemuSaveImageGetCompressionProgram(const char *imageFormat,
diff --git a/src/qemu/qemu_snapshot.c b/src/qemu/qemu_snapshot.c
index 07883d67fa..5991455a4e 100644
--- a/src/qemu/qemu_snapshot.c
+++ b/src/qemu/qemu_snapshot.c
@@ -2389,11 +2389,12 @@ qemuSnapshotRevertExternalPrepare(virDomainObj *vm,
g_autoptr(virDomainDef) savedef = NULL;
memdata->path = snapdef->memorysnapshotfile;
- memdata->fd = qemuSaveImageOpen(driver, NULL, memdata->path,
- &savedef, &memdata->data,
- false, NULL,
- false, false);
+ if (qemuSaveImageGetMetadata(driver, NULL, memdata->path, &savedef,
+ &memdata->data, false) < 0)
+ return -1;
+ memdata->fd = qemuSaveImageOpen(driver, memdata->path,
+ false, NULL, false);
if (memdata->fd < 0)
return -1;
--
2.43.0On 1/22/25 16:16, Jim Fehlig wrote:
> Split the reading of libvirt's save image metadata from the opening
> of the fd that will be passed to QEMU. This provides flexibility for
> an upcoming patch adding mapped-ram support for restore.
This patch may be useful on it's own. I've included it, along with another small
fix, for consideration outside of this series
https://lists.libvirt.org/archives/list/devel@lists.libvirt.org/thread/DATZFZY6ETRYOQ6ORQ2JIVHBTFGKUBJM/
Regards,
Jim
>
> Signed-off-by: Jim Fehlig <jfehlig@suse.com>
> ---
> src/qemu/qemu_driver.c | 37 ++++++++--------
> src/qemu/qemu_saveimage.c | 89 ++++++++++++++++++++++++---------------
> src/qemu/qemu_saveimage.h | 16 ++++---
> src/qemu/qemu_snapshot.c | 9 ++--
> 4 files changed, 89 insertions(+), 62 deletions(-)
>
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index 716eddba09..5afc2ea846 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -5792,9 +5792,12 @@ qemuDomainRestoreInternal(virConnectPtr conn,
> if (flags & VIR_DOMAIN_SAVE_RESET_NVRAM)
> reset_nvram = true;
>
> - fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
> + if (qemuSaveImageGetMetadata(driver, NULL, path, &def, &data, false) < 0)
> + goto cleanup;
> +
> + fd = qemuSaveImageOpen(driver, path,
> (flags & VIR_DOMAIN_SAVE_BYPASS_CACHE) != 0,
> - &wrapperFd, false, false);
> + &wrapperFd, false);
> if (fd < 0)
> goto cleanup;
>
> @@ -5923,15 +5926,11 @@ qemuDomainSaveImageGetXMLDesc(virConnectPtr conn, const char *path,
> virQEMUDriver *driver = conn->privateData;
> char *ret = NULL;
> g_autoptr(virDomainDef) def = NULL;
> - int fd = -1;
> virQEMUSaveData *data = NULL;
>
> virCheckFlags(VIR_DOMAIN_SAVE_IMAGE_XML_SECURE, NULL);
>
> - fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
> - false, NULL, false, false);
> -
> - if (fd < 0)
> + if (qemuSaveImageGetMetadata(driver, NULL, path, &def, &data, false) < 0)
> goto cleanup;
>
> if (virDomainSaveImageGetXMLDescEnsureACL(conn, def) < 0)
> @@ -5941,7 +5940,6 @@ qemuDomainSaveImageGetXMLDesc(virConnectPtr conn, const char *path,
>
> cleanup:
> virQEMUSaveDataFree(data);
> - VIR_FORCE_CLOSE(fd);
> return ret;
> }
>
> @@ -5965,8 +5963,10 @@ qemuDomainSaveImageDefineXML(virConnectPtr conn, const char *path,
> else if (flags & VIR_DOMAIN_SAVE_PAUSED)
> state = 0;
>
> - fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
> - false, NULL, true, false);
> + if (qemuSaveImageGetMetadata(driver, NULL, path, &def, &data, false) < 0)
> + goto cleanup;
> +
> + fd = qemuSaveImageOpen(driver, path, 0, NULL, false);
>
> if (fd < 0)
> goto cleanup;
> @@ -6024,7 +6024,6 @@ qemuDomainManagedSaveGetXMLDesc(virDomainPtr dom, unsigned int flags)
> g_autofree char *path = NULL;
> char *ret = NULL;
> g_autoptr(virDomainDef) def = NULL;
> - int fd = -1;
> virQEMUSaveData *data = NULL;
> qemuDomainObjPrivate *priv;
>
> @@ -6046,15 +6045,14 @@ qemuDomainManagedSaveGetXMLDesc(virDomainPtr dom, unsigned int flags)
> goto cleanup;
> }
>
> - if ((fd = qemuSaveImageOpen(driver, priv->qemuCaps, path, &def, &data,
> - false, NULL, false, false)) < 0)
> + if (qemuSaveImageGetMetadata(driver, priv->qemuCaps, path,
> + &def, &data, false) < 0)
> goto cleanup;
>
> ret = qemuDomainDefFormatXML(driver, priv->qemuCaps, def, flags);
>
> cleanup:
> virQEMUSaveDataFree(data);
> - VIR_FORCE_CLOSE(fd);
> virDomainObjEndAPI(&vm);
> return ret;
> }
> @@ -6110,14 +6108,17 @@ qemuDomainObjRestore(virConnectPtr conn,
> virQEMUSaveData *data = NULL;
> virFileWrapperFd *wrapperFd = NULL;
>
> - fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
> - bypass_cache, &wrapperFd, false, true);
> - if (fd < 0) {
> - if (fd == -3)
> + ret = qemuSaveImageGetMetadata(driver, NULL, path, &def, &data, true);
> + if (ret < 0) {
> + if (ret == -3)
> ret = 1;
> goto cleanup;
> }
>
> + fd = qemuSaveImageOpen(driver, path, bypass_cache, &wrapperFd, false);
> + if (fd < 0)
> + goto cleanup;
> +
> if (virHookPresent(VIR_HOOK_DRIVER_QEMU)) {
> int hookret;
>
> diff --git a/src/qemu/qemu_saveimage.c b/src/qemu/qemu_saveimage.c
> index 245bbf9dfc..3a71c23c01 100644
> --- a/src/qemu/qemu_saveimage.c
> +++ b/src/qemu/qemu_saveimage.c
> @@ -536,58 +536,35 @@ qemuSaveImageGetCompressionProgram(const char *imageFormat,
>
>
> /**
> - * qemuSaveImageOpen:
> + * qemuSaveImageGetMetadata:
> * @driver: qemu driver data
> * @qemuCaps: pointer to qemuCaps if the domain is running or NULL
> * @path: path of the save image
> * @ret_def: returns domain definition created from the XML stored in the image
> * @ret_data: returns structure filled with data from the image header
> - * @bypass_cache: bypass cache when opening the file
> - * @wrapperFd: returns the file wrapper structure
> - * @open_write: open the file for writing (for updates)
> * @unlink_corrupt: remove the image file if it is corrupted
> *
> - * Returns the opened fd of the save image file and fills the appropriate fields
> - * on success. On error returns -1 on most failures, -3 if corrupt image was
> - * unlinked (no error raised).
> + * Open the save image file, read libvirt's save image metadata, and populate
> + * the @ret_def and @ret_data structures. Returns 0 on success and -1 on most
> + * failures. Returns -3 if corrupt image was unlinked (no error raised).
> */
> int
> -qemuSaveImageOpen(virQEMUDriver *driver,
> - virQEMUCaps *qemuCaps,
> - const char *path,
> - virDomainDef **ret_def,
> - virQEMUSaveData **ret_data,
> - bool bypass_cache,
> - virFileWrapperFd **wrapperFd,
> - bool open_write,
> - bool unlink_corrupt)
> +qemuSaveImageGetMetadata(virQEMUDriver *driver,
> + virQEMUCaps *qemuCaps,
> + const char *path,
> + virDomainDef **ret_def,
> + virQEMUSaveData **ret_data,
> + bool unlink_corrupt)
> {
> g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
> VIR_AUTOCLOSE fd = -1;
> - int ret = -1;
> g_autoptr(virQEMUSaveData) data = NULL;
> virQEMUSaveHeader *header;
> g_autoptr(virDomainDef) def = NULL;
> - int oflags = open_write ? O_RDWR : O_RDONLY;
> size_t xml_len;
> size_t cookie_len;
>
> - if (bypass_cache) {
> - int directFlag = virFileDirectFdFlag();
> - if (directFlag < 0) {
> - virReportError(VIR_ERR_OPERATION_FAILED, "%s",
> - _("bypass cache unsupported by this system"));
> - return -1;
> - }
> - oflags |= directFlag;
> - }
> -
> - if ((fd = qemuDomainOpenFile(cfg, NULL, path, oflags, NULL)) < 0)
> - return -1;
> -
> - if (bypass_cache &&
> - !(*wrapperFd = virFileWrapperFdNew(&fd, path,
> - VIR_FILE_WRAPPER_BYPASS_CACHE)))
> + if ((fd = qemuDomainOpenFile(cfg, NULL, path, O_RDONLY, NULL)) < 0)
> return -1;
>
> data = g_new0(virQEMUSaveData, 1);
> @@ -685,6 +662,50 @@ qemuSaveImageOpen(virQEMUDriver *driver,
> *ret_def = g_steal_pointer(&def);
> *ret_data = g_steal_pointer(&data);
>
> + return 0;
> +}
> +
> +
> +/**
> + * qemuSaveImageOpen:
> + * @driver: qemu driver data
> + * @path: path of the save image
> + * @bypass_cache: bypass cache when opening the file
> + * @wrapperFd: returns the file wrapper structure
> + * @open_write: open the file for writing (for updates)
> + *
> + * Returns the opened fd of the save image file on success, -1 on failure.
> + */
> +int
> +qemuSaveImageOpen(virQEMUDriver *driver,
> + const char *path,
> + bool bypass_cache,
> + virFileWrapperFd **wrapperFd,
> + bool open_write)
> +{
> + g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
> + VIR_AUTOCLOSE fd = -1;
> + int ret = -1;
> + int oflags = open_write ? O_RDWR : O_RDONLY;
> +
> + if (bypass_cache) {
> + int directFlag = virFileDirectFdFlag();
> + if (directFlag < 0) {
> + virReportError(VIR_ERR_OPERATION_FAILED, "%s",
> + _("bypass cache unsupported by this system"));
> + return -1;
> + }
> + oflags |= directFlag;
> + }
> +
> + if ((fd = qemuDomainOpenFile(cfg, NULL, path, oflags, NULL)) < 0)
> + return -1;
> +
> + if (bypass_cache &&
> + !(*wrapperFd = virFileWrapperFdNew(&fd, path,
> + VIR_FILE_WRAPPER_BYPASS_CACHE)))
> + return -1;
> +
> ret = fd;
> fd = -1;
>
> diff --git a/src/qemu/qemu_saveimage.h b/src/qemu/qemu_saveimage.h
> index 481e280d75..7340925274 100644
> --- a/src/qemu/qemu_saveimage.h
> +++ b/src/qemu/qemu_saveimage.h
> @@ -89,17 +89,21 @@ qemuSaveImageStartVM(virConnectPtr conn,
> virDomainAsyncJob asyncJob)
> ATTRIBUTE_NONNULL(4) ATTRIBUTE_NONNULL(5) ATTRIBUTE_NONNULL(6);
>
> +int
> +qemuSaveImageGetMetadata(virQEMUDriver *driver,
> + virQEMUCaps *qemuCaps,
> + const char *path,
> + virDomainDef **ret_def,
> + virQEMUSaveData **ret_data,
> + bool unlink_corrupt)
> + ATTRIBUTE_NONNULL(4) ATTRIBUTE_NONNULL(5);
> +
> int
> qemuSaveImageOpen(virQEMUDriver *driver,
> - virQEMUCaps *qemuCaps,
> const char *path,
> - virDomainDef **ret_def,
> - virQEMUSaveData **ret_data,
> bool bypass_cache,
> virFileWrapperFd **wrapperFd,
> - bool open_write,
> - bool unlink_corrupt)
> - ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4);
> + bool open_write);
>
> int
> qemuSaveImageGetCompressionProgram(const char *imageFormat,
> diff --git a/src/qemu/qemu_snapshot.c b/src/qemu/qemu_snapshot.c
> index 07883d67fa..5991455a4e 100644
> --- a/src/qemu/qemu_snapshot.c
> +++ b/src/qemu/qemu_snapshot.c
> @@ -2389,11 +2389,12 @@ qemuSnapshotRevertExternalPrepare(virDomainObj *vm,
> g_autoptr(virDomainDef) savedef = NULL;
>
> memdata->path = snapdef->memorysnapshotfile;
> - memdata->fd = qemuSaveImageOpen(driver, NULL, memdata->path,
> - &savedef, &memdata->data,
> - false, NULL,
> - false, false);
> + if (qemuSaveImageGetMetadata(driver, NULL, memdata->path, &savedef,
> + &memdata->data, false) < 0)
> + return -1;
>
> + memdata->fd = qemuSaveImageOpen(driver, memdata->path,
> + false, NULL, false);
> if (memdata->fd < 0)
> return -1;
>
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