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Remove configFile/autostartLink vars from virDomainObj struct

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This commit is contained in:
Daniel P. Berrange 2008-08-20 19:42:36 +00:00
parent b1e5880740
commit 6334cd16df
7 changed files with 153 additions and 100 deletions
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9
ChangeLog
View File

@ -1,3 +1,12 @@
Wed Aug 20 42:42:09 BST 2008 Daniel P. Berrange <berrange@redhat.com>
* src/util.c, src/util.h: Add convenience APIs for stripping
a file extension
* src/domain_conf.c, src/domain_conf.h, src/lxc_driver.c,
src/qemu_driver.c: Remove fixed configfile/autostartlink
fields in virDomainObjPtr. Generate paths on-demand at time
of use
Wed Aug 20 15:42:09 CEST 2008 Daniel Veillard <veillard@redhat.com>
* src/openvz_conf.c src/openvz_driver.c: patch from Evgeniy Sokolov

133
src/domain_conf.c
View File

@ -421,8 +421,6 @@ void virDomainObjFree(virDomainObjPtr dom)
virDomainDefFree(dom->newDef);
VIR_FREE(dom->vcpupids);
VIR_FREE(dom->configFile);
VIR_FREE(dom->autostartLink);
VIR_FREE(dom);
}
@ -3220,31 +3218,19 @@ char *virDomainDefFormat(virConnectPtr conn,
int virDomainSaveConfig(virConnectPtr conn,
const char *configDir,
const char *autostartDir,
virDomainObjPtr dom)
virDomainDefPtr def)
{
char *xml;
char *configFile = NULL;
int fd = -1, ret = -1;
size_t towrite;
int err;
if (!dom->configFile &&
asprintf(&dom->configFile, "%s/%s.xml",
configDir, dom->def->name) < 0) {
dom->configFile = NULL;
virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL);
if ((configFile = virDomainConfigFile(conn, configDir, def->name)) == NULL)
goto cleanup;
}
if (!dom->autostartLink &&
asprintf(&dom->autostartLink, "%s/%s.xml",
autostartDir, dom->def->name) < 0) {
dom->autostartLink = NULL;
virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL);
goto cleanup;
}
if (!(xml = virDomainDefFormat(conn,
dom->newDef ? dom->newDef : dom->def,
def,
VIR_DOMAIN_XML_SECURE)))
goto cleanup;
@ -3255,34 +3241,27 @@ int virDomainSaveConfig(virConnectPtr conn,
goto cleanup;
}
if ((err = virFileMakePath(autostartDir))) {
virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot create autostart directory %s: %s"),
autostartDir, strerror(err));
goto cleanup;
}
if ((fd = open(dom->configFile,
if ((fd = open(configFile,
O_WRONLY | O_CREAT | O_TRUNC,
S_IRUSR | S_IWUSR )) < 0) {
virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot create config file %s: %s"),
dom->configFile, strerror(errno));
_("cannot create config file %s: %s"),
configFile, strerror(errno));
goto cleanup;
}
towrite = strlen(xml);
if (safewrite(fd, xml, towrite) < 0) {
virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot write config file %s: %s"),
dom->configFile, strerror(errno));
_("cannot write config file %s: %s"),
configFile, strerror(errno));
goto cleanup;
}
if (close(fd) < 0) {
virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot save config file %s: %s"),
dom->configFile, strerror(errno));
_("cannot save config file %s: %s"),
configFile, strerror(errno));
goto cleanup;
}
@ -3302,25 +3281,18 @@ virDomainObjPtr virDomainLoadConfig(virConnectPtr conn,
virDomainObjPtr *doms,
const char *configDir,
const char *autostartDir,
const char *file)
const char *name)
{
char *configFile = NULL, *autostartLink = NULL;
virDomainDefPtr def = NULL;
virDomainObjPtr dom;
int autostart;
if (asprintf(&configFile, "%s/%s",
configDir, file) < 0) {
configFile = NULL;
virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL);
if ((configFile = virDomainConfigFile(conn, configDir, name)) == NULL)
goto error;
}
if (asprintf(&autostartLink, "%s/%s",
autostartDir, file) < 0) {
autostartLink = NULL;
virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL);
if ((autostartLink = virDomainConfigFile(conn, autostartDir, name)) == NULL)
goto error;
}
if ((autostart = virFileLinkPointsTo(autostartLink, configFile)) < 0)
goto error;
@ -3328,20 +3300,10 @@ virDomainObjPtr virDomainLoadConfig(virConnectPtr conn,
if (!(def = virDomainDefParseFile(conn, caps, configFile)))
goto error;
if (!virFileMatchesNameSuffix(file, def->name, ".xml")) {
virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("Domain config filename '%s'"
" does not match domain name '%s'"),
configFile, def->name);
goto error;
}
if (!(dom = virDomainAssignDef(conn, doms, def)))
goto error;
dom->state = VIR_DOMAIN_SHUTOFF;
dom->configFile = configFile;
dom->autostartLink = autostartLink;
dom->autostart = autostart;
return dom;
@ -3372,20 +3334,24 @@ int virDomainLoadAllConfigs(virConnectPtr conn,
}
while ((entry = readdir(dir))) {
virDomainObjPtr dom;
if (entry->d_name[0] == '.')
continue;
if (!virFileHasSuffix(entry->d_name, ".xml"))
if (!virFileStripSuffix(entry->d_name, ".xml"))
continue;
/* NB: ignoring errors, so one malformed config doesn't
kill the whole process */
virDomainLoadConfig(conn,
caps,
doms,
configDir,
autostartDir,
entry->d_name);
dom = virDomainLoadConfig(conn,
caps,
doms,
configDir,
autostartDir,
entry->d_name);
if (dom)
dom->persistent = 1;
}
closedir(dir);
@ -3394,25 +3360,50 @@ int virDomainLoadAllConfigs(virConnectPtr conn,
}
int virDomainDeleteConfig(virConnectPtr conn,
virDomainObjPtr dom)
const char *configDir,
const char *autostartDir,
virDomainObjPtr dom)
{
if (!dom->configFile || !dom->autostartLink) {
virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("no config file for %s"), dom->def->name);
return -1;
}
char *configFile = NULL, *autostartLink = NULL;
int ret = -1;
if ((configFile = virDomainConfigFile(conn, configDir, dom->def->name)) == NULL)
goto cleanup;
if ((autostartLink = virDomainConfigFile(conn, autostartDir, dom->def->name)) == NULL)
goto cleanup;
/* Not fatal if this doesn't work */
unlink(dom->autostartLink);
unlink(autostartLink);
if (unlink(dom->configFile) < 0) {
if (unlink(configFile) < 0 &&
errno != ENOENT) {
virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot remove config for %s: %s"),
_("cannot remove config for %s: %s"),
dom->def->name, strerror(errno));
return -1;
goto cleanup;
}
return 0;
ret = 0;
cleanup:
VIR_FREE(configFile);
VIR_FREE(autostartLink);
return ret;
}
char *virDomainConfigFile(virConnectPtr conn,
const char *dir,
const char *name)
{
char *ret = NULL;
if (asprintf(&ret, "%s/%s.xml", dir, name) < 0) {
virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL);
return NULL;
}
return ret;
}
#endif /* ! PROXY */

14
src/domain_conf.h
View File

@ -458,9 +458,6 @@ struct _virDomainObj {
unsigned int autostart : 1;
unsigned int persistent : 1;
char *configFile;
char *autostartLink;
virDomainDefPtr def; /* The current definition */
virDomainDefPtr newDef; /* New definition to activate at shutdown */
@ -532,15 +529,14 @@ char *virDomainCpuSetFormat(virConnectPtr conn,
int virDomainSaveConfig(virConnectPtr conn,
const char *configDir,
const char *autostartDir,
virDomainObjPtr dom);
virDomainDefPtr def);
virDomainObjPtr virDomainLoadConfig(virConnectPtr conn,
virCapsPtr caps,
virDomainObjPtr *doms,
const char *configDir,
const char *autostartDir,
const char *file);
const char *name);
int virDomainLoadAllConfigs(virConnectPtr conn,
virCapsPtr caps,
@ -549,8 +545,14 @@ int virDomainLoadAllConfigs(virConnectPtr conn,
const char *autostartDir);
int virDomainDeleteConfig(virConnectPtr conn,
const char *configDir,
const char *autostartDir,
virDomainObjPtr dom);
char *virDomainConfigFile(virConnectPtr conn,
const char *dir,
const char *name);
virDomainNetDefPtr virDomainNetDefParseXML(virConnectPtr conn,
xmlNodePtr node);

15
src/lxc_driver.c
View File

@ -250,11 +250,11 @@ static virDomainPtr lxcDomainDefine(virConnectPtr conn, const char *xml)
virDomainDefFree(def);
return NULL;
}
vm->persistent = 1;
if (virDomainSaveConfig(conn,
driver->configDir,
driver->autostartDir,
vm) < 0) {
vm->newDef ? vm->newDef : vm->def) < 0) {
virDomainRemoveInactive(&driver->domains, vm);
return NULL;
}
@ -284,10 +284,17 @@ static int lxcDomainUndefine(virDomainPtr dom)
return -1;
}
if (virDomainDeleteConfig(dom->conn, vm) <0)
if (!vm->persistent) {
lxcError(dom->conn, dom, VIR_ERR_INTERNAL_ERROR,
"%s", _("cannot undefine transient domain"));
return -1;
}
vm->configFile[0] = '\0';
if (virDomainDeleteConfig(dom->conn,
driver->configDir,
driver->autostartDir,
vm) <0)
return -1;
virDomainRemoveInactive(&driver->domains, vm);

62
src/qemu_driver.c
View File

@ -351,7 +351,7 @@ qemudShutdown(void) {
virDomainObjPtr next = vm->next;
if (virDomainIsActive(vm))
qemudShutdownVMDaemon(NULL, qemu_driver, vm);
if (!vm->configFile)
if (!vm->persistent)
virDomainRemoveInactive(&qemu_driver->domains,
vm);
vm = next;
@ -1072,7 +1072,7 @@ static void qemudShutdownVMDaemon(virConnectPtr conn ATTRIBUTE_UNUSED,
static int qemudDispatchVMLog(struct qemud_driver *driver, virDomainObjPtr vm, int fd) {
if (qemudVMData(driver, vm, fd) < 0) {
qemudShutdownVMDaemon(NULL, driver, vm);
if (!vm->configFile)
if (!vm->persistent)
virDomainRemoveInactive(&driver->domains,
vm);
}
@ -1082,7 +1082,7 @@ static int qemudDispatchVMLog(struct qemud_driver *driver, virDomainObjPtr vm, i
static int qemudDispatchVMFailure(struct qemud_driver *driver, virDomainObjPtr vm,
int fd ATTRIBUTE_UNUSED) {
qemudShutdownVMDaemon(NULL, driver, vm);
if (!vm->configFile)
if (!vm->persistent)
virDomainRemoveInactive(&driver->domains,
vm);
return 0;
@ -2162,7 +2162,7 @@ static int qemudDomainDestroy(virDomainPtr dom) {
}
qemudShutdownVMDaemon(dom->conn, driver, vm);
if (!vm->configFile)
if (!vm->persistent)
virDomainRemoveInactive(&driver->domains,
vm);
@ -2493,7 +2493,7 @@ static int qemudDomainSave(virDomainPtr dom,
/* Shut it down */
qemudShutdownVMDaemon(dom->conn, driver, vm);
if (!vm->configFile)
if (!vm->persistent)
virDomainRemoveInactive(&driver->domains,
vm);
@ -2785,7 +2785,7 @@ static int qemudDomainRestore(virConnectPtr conn,
if (ret < 0) {
qemudReportError(conn, NULL, NULL, VIR_ERR_OPERATION_FAILED,
"%s", _("failed to start VM"));
if (!vm->configFile)
if (!vm->persistent)
virDomainRemoveInactive(&driver->domains,
vm);
return -1;
@ -2891,11 +2891,11 @@ static virDomainPtr qemudDomainDefine(virConnectPtr conn, const char *xml) {
virDomainDefFree(def);
return NULL;
}
vm->persistent = 1;
if (virDomainSaveConfig(conn,
driver->configDir,
driver->autostartDir,
vm) < 0) {
vm->newDef ? vm->newDef : vm->def) < 0) {
virDomainRemoveInactive(&driver->domains,
vm);
return NULL;
@ -2922,7 +2922,13 @@ static int qemudDomainUndefine(virDomainPtr dom) {
return -1;
}
if (virDomainDeleteConfig(dom->conn, vm) < 0)
if (!vm->persistent) {
qemudReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
"%s", _("cannot undefine transient domain"));
return -1;
}
if (virDomainDeleteConfig(dom->conn, driver->configDir, driver->autostartDir, vm) < 0)
return -1;
virDomainRemoveInactive(&driver->domains,
@ -3162,9 +3168,11 @@ static int qemudDomainGetAutostart(virDomainPtr dom,
}
static int qemudDomainSetAutostart(virDomainPtr dom,
int autostart) {
int autostart) {
struct qemud_driver *driver = (struct qemud_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(driver->domains, dom->uuid);
char *configFile = NULL, *autostartLink = NULL;
int ret = -1;
if (!vm) {
qemudReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
@ -3172,11 +3180,22 @@ static int qemudDomainSetAutostart(virDomainPtr dom,
return -1;
}
if (!vm->persistent) {
qemudReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
"%s", _("cannot set autostart for transient domain"));
return -1;
}
autostart = (autostart != 0);
if (vm->autostart == autostart)
return 0;
if ((configFile = virDomainConfigFile(dom->conn, driver->configDir, vm->def->name)) == NULL)
goto cleanup;
if ((autostartLink = virDomainConfigFile(dom->conn, driver->autostartDir, vm->def->name)) == NULL)
goto cleanup;
if (autostart) {
int err;
@ -3184,27 +3203,32 @@ static int qemudDomainSetAutostart(virDomainPtr dom,
qemudReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
_("cannot create autostart directory %s: %s"),
driver->autostartDir, strerror(err));
return -1;
goto cleanup;
}
if (symlink(vm->configFile, vm->autostartLink) < 0) {
if (symlink(configFile, autostartLink) < 0) {
qemudReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
_("Failed to create symlink '%s' to '%s': %s"),
vm->autostartLink, vm->configFile, strerror(errno));
return -1;
_("Failed to create symlink '%s to '%s': %s"),
autostartLink, configFile, strerror(errno));
goto cleanup;
}
} else {
if (unlink(vm->autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) {
if (unlink(autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) {
qemudReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
_("Failed to delete symlink '%s': %s"),
vm->autostartLink, strerror(errno));
return -1;
autostartLink, strerror(errno));
goto cleanup;
}
}
vm->autostart = autostart;
ret = 0;
return 0;
cleanup:
VIR_FREE(configFile);
VIR_FREE(autostartLink);
return ret;
}
/* This uses the 'info blockstats' monitor command which was

17
src/util.c
View File

@ -89,6 +89,23 @@ ReportError(virConnectPtr conn,
NULL, NULL, NULL, -1, -1, "%s", errorMessage);
}
int virFileStripSuffix(char *str,
const char *suffix)
{
int len = strlen(str);
int suffixlen = strlen(suffix);
if (len < suffixlen)
return 0;
if (!STREQ(str + len - suffixlen, suffix))
return 0;
str[len-suffixlen] = '\0';
return 1;
}
#ifndef __MINGW32__
static int virSetCloseExec(int fd) {

3
src/util.h
View File

@ -55,6 +55,9 @@ int virFileMatchesNameSuffix(const char *file,
int virFileHasSuffix(const char *str,
const char *suffix);
int virFileStripSuffix(char *str,
const char *suffix);
int virFileLinkPointsTo(const char *checkLink,
const char *checkDest);