[libvirt] [PREPOST 08/17] src/xenxs:Refactor graphics config parsing code

Jim Fehlig jfehlig at suse.com
Mon Jul 14 21:43:13 UTC 2014


David Kiarie wrote:
> From: Kiarie Kahurani <davidkiarie4 at gmail.com>
>
> introduce function
>
>   xenParseXMVfb(.....);
>
> which parses the graphics config
>
> signed-off-by: David Kiarie<davidkiarie4 at gmail.com>
> ---
>  src/xenxs/xen_xm.c | 247 ++++++++++++++++++++++++++++-------------------------
>  1 file changed, 131 insertions(+), 116 deletions(-)
>
> diff --git a/src/xenxs/xen_xm.c b/src/xenxs/xen_xm.c
> index 80a7941..89d5739 100644
> --- a/src/xenxs/xen_xm.c
> +++ b/src/xenxs/xen_xm.c
> @@ -872,125 +872,14 @@ static int xenParseXMDisk(virConfPtr conf, virDomainDefPtr def,
>  
>      return 0;
>  }
> -virDomainDefPtr
> -xenParseXM(virConfPtr conf, int xendConfigVersion,
> -                       virCapsPtr caps)
> +static int xenParseXMVfb(virConfPtr conf, virDomainDefPtr def,
> +                  int xendConfigVersion)
>  {
> -    const char *str;
> -    int hvm = 0;
> +    char *listenAddr;
>      int val;
> -    virConfValuePtr list;
> -    virDomainDefPtr def = NULL;
> -    virDomainDiskDefPtr disk = NULL;
> -    virDomainNetDefPtr net = NULL;
> +    virConfValuePtr list = NULL;
>      virDomainGraphicsDefPtr graphics = NULL;
> -    size_t i;
> -    char *script = NULL;
> -    char *listenAddr = NULL;
> -
> -    if (VIR_ALLOC(def) < 0)
> -        return NULL;
> -
> -    def->virtType = VIR_DOMAIN_VIRT_XEN;
> -    def->id = -1;
> -    if (xenParseXMGeneral(conf, def, caps) < 0)
> -        goto cleanup;
> -    hvm = (STREQ(def->os.type, "hvm"));
> -    if (hvm) {
> -        const char *boot;
> -        if (xenXMConfigCopyString(conf, "kernel", &def->os.loader) < 0)
> -            goto cleanup;
> -
> -        if (xenXMConfigGetString(conf, "boot", &boot, "c") < 0)
> -            goto cleanup;
> -
> -        for (i = 0; i < VIR_DOMAIN_BOOT_LAST && boot[i]; i++) {
> -            switch (*boot) {
> -            case 'a':
> -                def->os.bootDevs[i] = VIR_DOMAIN_BOOT_FLOPPY;
> -                break;
> -            case 'd':
> -                def->os.bootDevs[i] = VIR_DOMAIN_BOOT_CDROM;
> -                break;
> -            case 'n':
> -                def->os.bootDevs[i] = VIR_DOMAIN_BOOT_NET;
> -                break;
> -            case 'c':
> -            default:
> -                def->os.bootDevs[i] = VIR_DOMAIN_BOOT_DISK;
> -                break;
> -            }
> -            def->os.nBootDevs++;
> -        }
> -    } else {
> -        const char *extra, *root;
> -
> -        if (xenXMConfigCopyStringOpt(conf, "bootloader", &def->os.bootloader) < 0)
> -            goto cleanup;
> -        if (xenXMConfigCopyStringOpt(conf, "bootargs", &def->os.bootloaderArgs) < 0)
> -            goto cleanup;
> -
> -        if (xenXMConfigCopyStringOpt(conf, "kernel", &def->os.kernel) < 0)
> -            goto cleanup;
> -        if (xenXMConfigCopyStringOpt(conf, "ramdisk", &def->os.initrd) < 0)
> -            goto cleanup;
> -        if (xenXMConfigGetString(conf, "extra", &extra, NULL) < 0)
> -            goto cleanup;
> -        if (xenXMConfigGetString(conf, "root", &root, NULL) < 0)
> -            goto cleanup;
> -
> -        if (root) {
> -            if (virAsprintf(&def->os.cmdline, "root=%s %s", root, extra) < 0)
> -                goto cleanup;
> -        } else {
> -            if (VIR_STRDUP(def->os.cmdline, extra) < 0)
> -                goto cleanup;
> -        }
> -    }
> -    if (xenParseXMMem(conf, def) < 0)
> -        goto cleanup;
> -    if (xenXMConfigCopyStringOpt(conf, "device_model", &def->emulator) < 0)
> -        goto cleanup;
> -   if (xenParseXMVif(conf, def) < 0)
> -       goto cleanup;
> -
> -   if (xenParseXMTimeOffset(conf, def, xendConfigVersion) < 0)
> -       goto cleanup;
> -   if (xenParseXMEventsActions(conf, def) < 0)
> -       goto cleanup;
> -   if (xenParseXMPCI(conf, def) < 0)
> -       goto cleanup;
> -   if (xenParseXMCPUFeatures(conf, def) < 0)
> -       goto cleanup;
> -   if (xenParseXMDisk(conf, def, xendConfigVersion) < 0)
> -       goto cleanup;
> -
> -   if (hvm) {
> -        if (xenXMConfigGetString(conf, "usbdevice", &str, NULL) < 0)
> -            goto cleanup;
> -        if (str &&
> -            (STREQ(str, "tablet") ||
> -             STREQ(str, "mouse") ||
> -             STREQ(str, "keyboard"))) {
> -            virDomainInputDefPtr input;
> -            if (VIR_ALLOC(input) < 0)
> -                goto cleanup;
> -            input->bus = VIR_DOMAIN_INPUT_BUS_USB;
> -            if (STREQ(str, "mouse"))
> -                input->type = VIR_DOMAIN_INPUT_TYPE_MOUSE;
> -            else if (STREQ(str, "tablet"))
> -                input->type = VIR_DOMAIN_INPUT_TYPE_TABLET;
> -            else if (STREQ(str, "keyboard"))
> -                input->type = VIR_DOMAIN_INPUT_TYPE_KBD;
> -            if (VIR_ALLOC_N(def->inputs, 1) < 0) {
> -                virDomainInputDefFree(input);
> -                goto cleanup;
> -            }
> -            def->inputs[0] = input;
> -            def->ninputs = 1;
> -        }
> -    }
> -
> +    int hvm = STREQ(def->os.type, "hvm");
>   

The usual whitespace comments: blank lines between functions,
indentation of the function params, and blank line after local variables.

>      /* HVM guests, or old PV guests use this config format */
>      if (hvm || xendConfigVersion < XEND_CONFIG_VERSION_3_0_4) {
>          if (xenXMConfigGetBool(conf, "vnc", &val, 0) < 0)
> @@ -1125,6 +1014,132 @@ xenParseXM(virConfPtr conf, int xendConfigVersion,
>          }
>      }
>  
> +    return 0;
> +
> + cleanup:
> +    virDomainGraphicsDefFree(graphics);
> +    return -1;
> +}
> +virDomainDefPtr
> +xenParseXM(virConfPtr conf, int xendConfigVersion,
> +                       virCapsPtr caps)
> +{
> +    const char *str;
> +    int hvm = 0;
> +    virConfValuePtr list;
> +    virDomainDefPtr def = NULL;
> +    virDomainDiskDefPtr disk = NULL;
> +    virDomainNetDefPtr net = NULL;
> +    virDomainGraphicsDefPtr graphics = NULL;
> +    size_t i;
> +    char *script = NULL;
> +    char *listenAddr = NULL;
>   

'graphics' and 'listenAddr' are no longer used in this function and can
be dropped.

Regards,
Jim

> +
> +    if (VIR_ALLOC(def) < 0)
> +        return NULL;
> +
> +    def->virtType = VIR_DOMAIN_VIRT_XEN;
> +    def->id = -1;
> +    if (xenParseXMGeneral(conf, def, caps) < 0)
> +        goto cleanup;
> +    hvm = (STREQ(def->os.type, "hvm"));
> +    if (hvm) {
> +        const char *boot;
> +        if (xenXMConfigCopyString(conf, "kernel", &def->os.loader) < 0)
> +            goto cleanup;
> +
> +        if (xenXMConfigGetString(conf, "boot", &boot, "c") < 0)
> +            goto cleanup;
> +
> +        for (i = 0; i < VIR_DOMAIN_BOOT_LAST && boot[i]; i++) {
> +            switch (*boot) {
> +            case 'a':
> +                def->os.bootDevs[i] = VIR_DOMAIN_BOOT_FLOPPY;
> +                break;
> +            case 'd':
> +                def->os.bootDevs[i] = VIR_DOMAIN_BOOT_CDROM;
> +                break;
> +            case 'n':
> +                def->os.bootDevs[i] = VIR_DOMAIN_BOOT_NET;
> +                break;
> +            case 'c':
> +            default:
> +                def->os.bootDevs[i] = VIR_DOMAIN_BOOT_DISK;
> +                break;
> +            }
> +            def->os.nBootDevs++;
> +        }
> +    } else {
> +        const char *extra, *root;
> +
> +        if (xenXMConfigCopyStringOpt(conf, "bootloader", &def->os.bootloader) < 0)
> +            goto cleanup;
> +        if (xenXMConfigCopyStringOpt(conf, "bootargs", &def->os.bootloaderArgs) < 0)
> +            goto cleanup;
> +
> +        if (xenXMConfigCopyStringOpt(conf, "kernel", &def->os.kernel) < 0)
> +            goto cleanup;
> +        if (xenXMConfigCopyStringOpt(conf, "ramdisk", &def->os.initrd) < 0)
> +            goto cleanup;
> +        if (xenXMConfigGetString(conf, "extra", &extra, NULL) < 0)
> +            goto cleanup;
> +        if (xenXMConfigGetString(conf, "root", &root, NULL) < 0)
> +            goto cleanup;
> +
> +        if (root) {
> +            if (virAsprintf(&def->os.cmdline, "root=%s %s", root, extra) < 0)
> +                goto cleanup;
> +        } else {
> +            if (VIR_STRDUP(def->os.cmdline, extra) < 0)
> +                goto cleanup;
> +        }
> +    }
> +    if (xenParseXMMem(conf, def) < 0)
> +        goto cleanup;
> +    if (xenXMConfigCopyStringOpt(conf, "device_model", &def->emulator) < 0)
> +        goto cleanup;
> +   if (xenParseXMVif(conf, def) < 0)
> +       goto cleanup;
> +
> +   if (xenParseXMTimeOffset(conf, def, xendConfigVersion) < 0)
> +       goto cleanup;
> +   if (xenParseXMEventsActions(conf, def) < 0)
> +       goto cleanup;
> +   if (xenParseXMPCI(conf, def) < 0)
> +       goto cleanup;
> +   if (xenParseXMCPUFeatures(conf, def) < 0)
> +       goto cleanup;
> +   if (xenParseXMDisk(conf, def, xendConfigVersion) < 0)
> +       goto cleanup;
> +
> +   if (hvm) {
> +        if (xenXMConfigGetString(conf, "usbdevice", &str, NULL) < 0)
> +            goto cleanup;
> +        if (str &&
> +            (STREQ(str, "tablet") ||
> +             STREQ(str, "mouse") ||
> +             STREQ(str, "keyboard"))) {
> +            virDomainInputDefPtr input;
> +            if (VIR_ALLOC(input) < 0)
> +                goto cleanup;
> +            input->bus = VIR_DOMAIN_INPUT_BUS_USB;
> +            if (STREQ(str, "mouse"))
> +                input->type = VIR_DOMAIN_INPUT_TYPE_MOUSE;
> +            else if (STREQ(str, "tablet"))
> +                input->type = VIR_DOMAIN_INPUT_TYPE_TABLET;
> +            else if (STREQ(str, "keyboard"))
> +                input->type = VIR_DOMAIN_INPUT_TYPE_KBD;
> +            if (VIR_ALLOC_N(def->inputs, 1) < 0) {
> +                virDomainInputDefFree(input);
> +                goto cleanup;
> +            }
> +            def->inputs[0] = input;
> +            def->ninputs = 1;
> +        }
> +    }
> +    if (xenParseXMVfb(conf, def, xendConfigVersion) < 0)
> +        goto cleanup;
> +
>      if (hvm) {
>          virDomainChrDefPtr chr = NULL;
>  
>   




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