[Libvirt-cim] [PATCH 1 of 2] Change xmlgen core to handle batches of devices

# HG changeset patch # User Dan Smith <danms(a)us.ibm.com&gt; # Date 1200414819 28800 # Node ID f90450901ee0e616bda311a5da2e7d14c570f6fa # Parent b2a79064df2639a6b7ade2f2bbcb21af9c66a267 Change xmlgen core to handle batches of devices in preparation for the next patch to fix vcpu xml generation Signed-off-by: Dan Smith <danms(a)us.ibm.com&gt; diff -r b2a79064df26 -r f90450901ee0 libxkutil/xmlgen.c --- a/libxkutil/xmlgen.c Mon Jan 14 13:01:22 2008 -0800 +++ b/libxkutil/xmlgen.c Tue Jan 15 08:33:39 2008 -0800 @@ -93,6 +93,26 @@ static char *tagify(char *tagname, char return result; } +static int astrcat(char **dest, char *source) +{ + char *tmp; + int ret; + + if (*dest) { + ret = asprintf(&tmp, "%s%s", *dest, source); + if (ret == -1) + return 0; + } else { + tmp = strdup(source); + } + + free(*dest); + + *dest = tmp; + + return 1; +} + static char *disk_block_xml(const char *path, const char *vdev) { char *xml; @@ -129,26 +149,34 @@ static char *disk_file_xml(const char *p return xml; } -static char *disk_to_xml(struct disk_device *disk) -{ +static bool disk_to_xml(char **xml, struct virt_device *dev) +{ + char *_xml = NULL; + struct disk_device *disk = &dev->dev.disk; + if (disk->disk_type == DISK_PHY) - return disk_block_xml(disk->source, disk->virtual_dev); + _xml = disk_block_xml(disk->source, disk->virtual_dev); else if (disk->disk_type == DISK_FILE) /* If it's not a block device, we assume a file, which should be a reasonable fail-safe */ - return disk_file_xml(disk->source, disk->virtual_dev); - else - return strdup("<!-- Unknown disk type -->\n"); -} - -static char *net_to_xml(struct net_device *net) -{ - int ret; - char *xml; - + _xml = disk_file_xml(disk->source, disk->virtual_dev); + else + return false; + + astrcat(xml, _xml); + free(_xml); + + return true; +} + +static bool net_to_xml(char **xml, struct virt_device *dev) +{ + int ret; + char *_xml; char *script = "vif-bridge"; - - ret = asprintf(&xml, + struct net_device *net = &dev->dev.net; + + ret = asprintf(&_xml, "<interface type='%s'>\n" " <mac address='%s'/>\n" " <script path='%s'/>\n" @@ -158,22 +186,28 @@ static char *net_to_xml(struct net_devic script); if (ret == -1) - xml = NULL; - - return xml; -} - -static char *proc_to_xml(struct vcpu_device *proc) -{ - return strdup(""); -} - -static char *mem_to_xml(struct mem_device *mem) -{ - int ret; - char *xml; - - ret = asprintf(&xml, + return false; + else + astrcat(xml, _xml); + + free(_xml); + + return true; +} + +static bool vcpu_to_xml(char **xml, struct virt_device *dev) +{ + astrcat(xml, "<vcpu>1</vcpu>\n"); + return true; +} + +static bool mem_to_xml(char **xml, struct virt_device *dev) +{ + int ret; + char *_xml; + struct mem_device *mem = &dev->dev.mem; + + ret = asprintf(&_xml, "<currentMemory>%" PRIu64 "</currentMemory>\n" "<memory>%" PRIu64 "</memory>\n", mem->size, @@ -181,91 +215,107 @@ static char *mem_to_xml(struct mem_devic if (ret == 1) - xml = NULL; - - return xml; -} - -static char *emu_to_xml(struct emu_device *emu) -{ - int ret; - char *xml; - - ret = asprintf(&xml, + return false; + else + astrcat(xml, _xml); + + free(_xml); + + return true; +} + +static bool emu_to_xml(char **xml, struct virt_device *dev) +{ + int ret; + char *_xml; + struct emu_device *emu = &dev->dev.emu; + + ret = asprintf(&_xml, "<emulator>%s</emulator>\n", emu->path); if (ret == -1) - xml = NULL; - - return xml; -} - -static char *graphics_to_xml(struct graphics_device *graphics) -{ - int ret; - char *xml; - - ret = asprintf(&xml, + return false; + else + astrcat(xml, _xml); + + free(_xml); + + return true; +} + +static bool graphics_to_xml(char **xml, struct virt_device *dev) +{ + int ret; + char *_xml; + struct graphics_device *graphics = &dev->dev.graphics; + + ret = asprintf(&_xml, "<graphics type='%s' port='%s'/>\n", graphics->type, graphics->port); if (ret == -1) - xml = NULL; - - return xml; + return false; + else + astrcat(xml, _xml); + + free(_xml); + + return true; +} + +static bool concat_devxml(char **xml, + struct virt_device *list, + int count, + bool (*func)(char **, struct virt_device *)) +{ + char *_xml = NULL; + int i; + + for (i = 0; i < count; i++) { + func(&_xml, &list[i]); + } + + astrcat(xml, _xml); + free(_xml); + + return true; } char *device_to_xml(struct virt_device *dev) { - switch (dev->type) { + char *xml = NULL; + int type = dev->type; + bool (*func)(char **, struct virt_device *); + + switch (type) { + case VIRT_DEV_DISK: + func = disk_to_xml; + break; + case VIRT_DEV_VCPU: + func = vcpu_to_xml; + break; case VIRT_DEV_NET: - return net_to_xml(&dev->dev.net); - case VIRT_DEV_DISK: - return disk_to_xml(&dev->dev.disk); + func = net_to_xml; + break; case VIRT_DEV_MEM: - return mem_to_xml(&dev->dev.mem); - case VIRT_DEV_VCPU: - return proc_to_xml(&dev->dev.vcpu); + func = mem_to_xml; + break; case VIRT_DEV_EMU: - return emu_to_xml(&dev->dev.emu); + func = emu_to_xml; + break; case VIRT_DEV_GRAPHICS: - return graphics_to_xml(&dev->dev.graphics); + func = graphics_to_xml; + break; default: return NULL; - }; -} - -static int astrcat(char **dest, char *source) -{ - char *tmp; - int ret; - - ret = asprintf(&tmp, "%s%s", *dest, source); - if (ret == -1) - return 0; - - free(*dest); - - *dest = tmp; - - return 1; -} - -static int concat_devxml(char ** xml, struct virt_device *list, int count) -{ - int i; - - for (i = 0; i < count; i++) { - char *devxml; - - devxml = device_to_xml(&list[i]); - if (devxml) { - astrcat(xml, devxml); - free(devxml); - } } - return count; + if (concat_devxml(&xml, dev, 1, func)) + return xml; + + free(xml); + + return NULL; } static char *system_xml(struct domain *domain) @@ -458,17 +508,35 @@ char *system_to_xml(struct domain *domin uuid_unparse(uuid, uuidstr); } - concat_devxml(&devxml, dominfo->dev_net, dominfo->dev_net_ct); - concat_devxml(&devxml, dominfo->dev_disk, dominfo->dev_disk_ct); + concat_devxml(&devxml, + dominfo->dev_net, + dominfo->dev_net_ct, + net_to_xml); + concat_devxml(&devxml, + dominfo->dev_disk, + dominfo->dev_disk_ct, + disk_to_xml); if (dominfo->dev_emu) - concat_devxml(&devxml, dominfo->dev_emu, 1); + concat_devxml(&devxml, + dominfo->dev_emu, + 1, + emu_to_xml); if (dominfo->dev_graphics) - concat_devxml(&devxml, dominfo->dev_graphics, 1); - - concat_devxml(&sysdevxml, dominfo->dev_mem, dominfo->dev_mem_ct); - concat_devxml(&sysdevxml, dominfo->dev_vcpu, dominfo->dev_vcpu_ct); + concat_devxml(&devxml, + dominfo->dev_graphics, + 1, + graphics_to_xml); + + concat_devxml(&sysdevxml, + dominfo->dev_mem, + dominfo->dev_mem_ct, + mem_to_xml); + concat_devxml(&sysdevxml, + dominfo->dev_vcpu, + dominfo->dev_vcpu_ct, + vcpu_to_xml); sysxml = system_xml(dominfo); osxml = os_xml(dominfo);