11:18 p.m.
Move them to the single corresponding function rather than having them
in the common chunk of code.
---
src/qemu/qemu_driver.c | 76 +++++++++++++++++++++++++++-----------------------
1 file changed, 41 insertions(+), 35 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 0151fd2..1d82e93 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -5373,10 +5373,22 @@ qemuDomainSaveImageUpdateDef(virQEMUDriverPtr driver,
}
-/* Return -1 on most failures after raising error, -2 if edit was specified
- * but xmlin and state (-1 for no change, 0 for paused, 1 for running) do
- * not represent any changes (no error raised), -3 if corrupt image was
- * unlinked (no error raised), and opened fd on success. */
+/**
+ * qemuDomainSaveImageOpen:
+ * @driver: qemu driver data
+ * @path: path of the save image
+ * @ret_def: returns domain definition created from the XML stored in the image
+ * @ret_header: returns structure filled with data from the image header
+ * @xmlout: returns the XML from the image file (may be NULL)
+ * @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 apropriate fields
+ * on success. On error returns -1 on most failures, -3 if corrupt image was
+ * unlinked (no error raised).
+ */
static int ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4)
qemuDomainSaveImageOpen(virQEMUDriverPtr driver,
const char *path,
@@ -5385,14 +5397,14 @@ qemuDomainSaveImageOpen(virQEMUDriverPtr driver,
char **xmlout,
bool bypass_cache,
virFileWrapperFdPtr *wrapperFd,
- const char *xmlin, int state, bool edit,
+ bool open_write,
bool unlink_corrupt)
{
int fd = -1;
virQEMUSaveHeader header;
char *xml = NULL;
virDomainDefPtr def = NULL;
- int oflags = edit ? O_RDWR : O_RDONLY;
+ int oflags = open_write ? O_RDWR : O_RDONLY;
virCapsPtr caps = NULL;
if (bypass_cache) {
@@ -5477,18 +5489,6 @@ qemuDomainSaveImageOpen(virQEMUDriverPtr driver,
goto error;
}
- if (edit && STREQ(xml, xmlin) &&
- (state < 0 || state == header.was_running)) {
- VIR_FREE(xml);
- if (VIR_CLOSE(fd) < 0) {
- virReportSystemError(errno, _("cannot close file: %s"), path);
- goto error;
- }
- return -2;
- }
- if (state >= 0)
- header.was_running = state;
-
/* Create a domain from this XML */
if (!(def = virDomainDefParseString(xml, caps, driver->xmlopt,
QEMU_EXPECTED_VIRT_TYPES,
@@ -5643,21 +5643,15 @@ qemuDomainRestoreFlags(virConnectPtr conn,
int ret = -1;
virQEMUSaveHeader header;
virFileWrapperFdPtr wrapperFd = NULL;
- int state = -1;
virCheckFlags(VIR_DOMAIN_SAVE_BYPASS_CACHE |
VIR_DOMAIN_SAVE_RUNNING |
VIR_DOMAIN_SAVE_PAUSED, -1);
- if (flags & VIR_DOMAIN_SAVE_RUNNING)
- state = 1;
- else if (flags & VIR_DOMAIN_SAVE_PAUSED)
- state = 0;
-
fd = qemuDomainSaveImageOpen(driver, path, &def, &header, NULL,
(flags & VIR_DOMAIN_SAVE_BYPASS_CACHE) != 0,
- &wrapperFd, dxml, state, false, false);
+ &wrapperFd, false, false);
if (fd < 0)
goto cleanup;
@@ -5680,6 +5674,11 @@ qemuDomainRestoreFlags(virConnectPtr conn,
goto cleanup;
def = NULL;
+ if (flags & VIR_DOMAIN_SAVE_RUNNING)
+ header.was_running = 1;
+ else if (flags & VIR_DOMAIN_SAVE_PAUSED)
+ header.was_running = 0;
+
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
@@ -5725,7 +5724,7 @@ qemuDomainSaveImageGetXMLDesc(virConnectPtr conn, const char *path,
virCheckFlags(VIR_DOMAIN_XML_SECURE, NULL);
fd = qemuDomainSaveImageOpen(driver, path, &def, &header, NULL,
- false, NULL, NULL, -1, false, false);
+ false, NULL, false, false);
if (fd < 0)
goto cleanup;
@@ -5763,22 +5762,30 @@ qemuDomainSaveImageDefineXML(virConnectPtr conn, const char
*path,
else if (flags & VIR_DOMAIN_SAVE_PAUSED)
state = 0;
- fd = qemuDomainSaveImageOpen(driver, path, &def, &header, NULL,
- false, NULL, dxml, state, true, false);
+ fd = qemuDomainSaveImageOpen(driver, path, &def, &header, &xml,
+ false, NULL, true, false);
- if (fd < 0) {
- /* Check for special case of no change needed. */
- if (fd == -2)
- ret = 0;
+ if (fd < 0)
goto cleanup;
- }
if (virDomainSaveImageDefineXMLEnsureACL(conn, def) < 0)
goto cleanup;
+ if (STREQ(xml, dxml) &&
+ (state < 0 || state == header.was_running)) {
+ /* no change to the XML */
+ ret = 0;
+ goto cleanup;
+ }
+
+ if (state > 0)
+ header.was_running = state;
+
if (!(newdef = qemuDomainSaveImageUpdateDef(driver, def, dxml)))
goto cleanup;
+ VIR_FREE(xml);
+
xml = qemuDomainDefFormatXML(driver, newdef,
VIR_DOMAIN_XML_INACTIVE |
VIR_DOMAIN_XML_SECURE |
@@ -5833,8 +5840,7 @@ qemuDomainObjRestore(virConnectPtr conn,
virFileWrapperFdPtr wrapperFd = NULL;
fd = qemuDomainSaveImageOpen(driver, path, &def, &header, NULL,
- bypass_cache, &wrapperFd, NULL, -1, false,
- true);
+ bypass_cache, &wrapperFd, false, true);
if (fd < 0) {
if (fd == -3)
ret = 1;
--
2.1.0