mirror of https://gitee.com/openkylin/libvirt.git
virsh: simplify printing of typed parameters
No need to repeat code for formatting typed parameters. * tools/virsh.c (vshGetTypedParamValue): Support strings, and exit on OOM. (cmdSchedinfo, cmdBlkiotune, cmdMemtune, cmdBlkdeviotune): Use it for less code.
This commit is contained in:
Eric Blake
parent
60f99824d4
commit
f8616336a3
153
tools/virsh.c
153
tools/virsh.c
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@ -387,7 +387,8 @@ static bool vshConnectionUsability(vshControl *ctl, virConnectPtr conn);
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static virTypedParameterPtr vshFindTypedParamByName(const char *name,
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virTypedParameterPtr list,
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int count);
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static char *vshGetTypedParamValue(vshControl *ctl, virTypedParameterPtr item);
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static char *vshGetTypedParamValue(vshControl *ctl, virTypedParameterPtr item)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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static char *editWriteToTempFile (vshControl *ctl, const char *doc);
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static int editFile (vshControl *ctl, const char *filename);
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@ -1186,8 +1187,7 @@ cmdDomblkstat (vshControl *ctl, const vshCmd *cmd)
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nparams)))
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continue;
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if (!(value = vshGetTypedParamValue(ctl, par)))
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continue;
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value = vshGetTypedParamValue(ctl, par);
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/* to print other not supported fields, mark the already printed */
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par->field[0] = '\0'; /* set the name to empty string */
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@ -1214,9 +1214,7 @@ cmdDomblkstat (vshControl *ctl, const vshCmd *cmd)
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if (!*params[i].field)
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continue;
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if (!(value = vshGetTypedParamValue(ctl, params+i)))
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continue;
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value = vshGetTypedParamValue(ctl, params+i);
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vshPrint(ctl, "%s %s %s\n", device, params[i].field, value);
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VIR_FREE(value);
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}
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@ -2975,28 +2973,9 @@ cmdSchedinfo(vshControl *ctl, const vshCmd *cmd)
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ret_val = true;
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for (i = 0; i < nparams; i++) {
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switch (params[i].type) {
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case VIR_TYPED_PARAM_INT:
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vshPrint(ctl, "%-15s: %d\n", params[i].field, params[i].value.i);
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break;
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case VIR_TYPED_PARAM_UINT:
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vshPrint(ctl, "%-15s: %u\n", params[i].field, params[i].value.ui);
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break;
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case VIR_TYPED_PARAM_LLONG:
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vshPrint(ctl, "%-15s: %lld\n", params[i].field, params[i].value.l);
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break;
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case VIR_TYPED_PARAM_ULLONG:
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vshPrint(ctl, "%-15s: %llu\n", params[i].field, params[i].value.ul);
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break;
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case VIR_TYPED_PARAM_DOUBLE:
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vshPrint(ctl, "%-15s: %f\n", params[i].field, params[i].value.d);
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break;
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case VIR_TYPED_PARAM_BOOLEAN:
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vshPrint(ctl, "%-15s: %d\n", params[i].field, params[i].value.b);
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break;
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default:
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vshPrint(ctl, "not implemented scheduler parameter type\n");
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}
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char *str = vshGetTypedParamValue(ctl, ¶ms[i]);
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vshPrint(ctl, "%-15s: %s\n", params[i].field, str);
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VIR_FREE(str);
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}
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}
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@ -4935,38 +4914,9 @@ cmdBlkiotune(vshControl * ctl, const vshCmd * cmd)
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}
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for (i = 0; i < nparams; i++) {
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switch (params[i].type) {
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case VIR_TYPED_PARAM_INT:
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vshPrint(ctl, "%-15s: %d\n", params[i].field,
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params[i].value.i);
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break;
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case VIR_TYPED_PARAM_UINT:
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vshPrint(ctl, "%-15s: %u\n", params[i].field,
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params[i].value.ui);
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break;
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case VIR_TYPED_PARAM_LLONG:
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vshPrint(ctl, "%-15s: %lld\n", params[i].field,
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params[i].value.l);
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break;
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case VIR_TYPED_PARAM_ULLONG:
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vshPrint(ctl, "%-15s: %llu\n", params[i].field,
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params[i].value.ul);
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break;
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case VIR_TYPED_PARAM_DOUBLE:
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vshPrint(ctl, "%-15s: %f\n", params[i].field,
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params[i].value.d);
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break;
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case VIR_TYPED_PARAM_BOOLEAN:
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vshPrint(ctl, "%-15s: %d\n", params[i].field,
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params[i].value.b);
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break;
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case VIR_TYPED_PARAM_STRING:
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vshPrint(ctl, "%-15s: %s\n", params[i].field,
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params[i].value.s);
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break;
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default:
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vshPrint(ctl, "unimplemented blkio parameter type\n");
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}
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char *str = vshGetTypedParamValue(ctl, ¶ms[i]);
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vshPrint(ctl, "%-15s: %s\n", params[i].field, str);
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VIR_FREE(str);
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}
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} else {
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/* set the blkio parameters */
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@ -5112,36 +5062,13 @@ cmdMemtune(vshControl * ctl, const vshCmd * cmd)
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}
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for (i = 0; i < nparams; i++) {
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switch (params[i].type) {
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case VIR_TYPED_PARAM_INT:
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vshPrint(ctl, "%-15s: %d\n", params[i].field,
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params[i].value.i);
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break;
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case VIR_TYPED_PARAM_UINT:
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vshPrint(ctl, "%-15s: %u\n", params[i].field,
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params[i].value.ui);
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break;
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case VIR_TYPED_PARAM_LLONG:
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vshPrint(ctl, "%-15s: %lld\n", params[i].field,
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params[i].value.l);
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break;
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case VIR_TYPED_PARAM_ULLONG:
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if (params[i].value.ul == VIR_DOMAIN_MEMORY_PARAM_UNLIMITED)
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vshPrint(ctl, "%-15s: unlimited\n", params[i].field);
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else
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vshPrint(ctl, "%-15s: %llu kB\n", params[i].field,
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params[i].value.ul);
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break;
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case VIR_TYPED_PARAM_DOUBLE:
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vshPrint(ctl, "%-15s: %f\n", params[i].field,
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params[i].value.d);
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break;
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case VIR_TYPED_PARAM_BOOLEAN:
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vshPrint(ctl, "%-15s: %d\n", params[i].field,
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params[i].value.b);
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break;
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default:
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vshPrint(ctl, "unimplemented memory parameter type\n");
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if (params[i].type == VIR_TYPED_PARAM_ULLONG &&
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params[i].value.ul == VIR_DOMAIN_MEMORY_PARAM_UNLIMITED) {
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vshPrint(ctl, "%-15s: %s\n", params[i].field, _("unlimited"));
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} else {
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char *str = vshGetTypedParamValue(ctl, ¶ms[i]);
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vshPrint(ctl, "%-15s: %s\n", params[i].field, str);
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VIR_FREE(str);
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}
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}
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@ -6562,34 +6489,9 @@ cmdBlkdeviotune(vshControl *ctl, const vshCmd *cmd)
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}
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for (i = 0; i < nparams; i++) {
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switch(params[i].type) {
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case VIR_TYPED_PARAM_INT:
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vshPrint(ctl, "%-15s: %d\n", params[i].field,
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params[i].value.i);
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break;
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case VIR_TYPED_PARAM_UINT:
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vshPrint(ctl, "%-15s: %u\n", params[i].field,
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params[i].value.ui);
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break;
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case VIR_TYPED_PARAM_LLONG:
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vshPrint(ctl, "%-15s: %lld\n", params[i].field,
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params[i].value.l);
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break;
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case VIR_TYPED_PARAM_ULLONG:
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vshPrint(ctl, "%-15s: %llu\n", params[i].field,
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params[i].value.ul);
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break;
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case VIR_TYPED_PARAM_DOUBLE:
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vshPrint(ctl, "%-15s: %f\n", params[i].field,
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params[i].value.d);
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break;
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case VIR_TYPED_PARAM_BOOLEAN:
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vshPrint(ctl, "%-15s: %d\n", params[i].field,
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params[i].value.b);
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break;
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default:
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vshPrint(ctl, "unimplemented block I/O throttle parameter type\n");
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}
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char *str = vshGetTypedParamValue(ctl, ¶ms[i]);
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vshPrint(ctl, "%-15s: %s\n", params[i].field, str);
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VIR_FREE(str);
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}
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ret = true;
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@ -17052,15 +16954,14 @@ vshDomainStateReasonToString(int state, int reason)
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return N_("unknown");
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}
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/* Return a non-NULL string representation of a typed parameter; exit
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* if we are out of memory. */
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static char *
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vshGetTypedParamValue(vshControl *ctl, virTypedParameterPtr item)
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{
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int ret = 0;
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char *str = NULL;
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if (!ctl || !item)
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return NULL;
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switch(item->type) {
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case VIR_TYPED_PARAM_INT:
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ret = virAsprintf(&str, "%d", item->value.i);
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@ -17086,12 +16987,18 @@ vshGetTypedParamValue(vshControl *ctl, virTypedParameterPtr item)
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ret = virAsprintf(&str, "%s", item->value.b ? _("yes") : _("no"));
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break;
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case VIR_TYPED_PARAM_STRING:
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str = vshStrdup(ctl, item->value.s);
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break;
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default:
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vshError(ctl, _("unimplemented block statistics parameter type"));
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vshError(ctl, _("unimplemented parameter type %d"), item->type);
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}
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if (ret < 0)
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if (ret < 0) {
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vshError(ctl, "%s", _("Out of memory"));
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exit(EXIT_FAILURE);
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}
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return str;
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}
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