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Add a new function vshPrintPinInfo.

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This is a helper function to print vcpu pin info.
This commit is contained in:
Hu Tao 2012-08-21 17:18:39 +08:00 committed by Daniel Veillard
parent ca5c99aecb
commit 272570dffb
1 changed files with 42 additions and 23 deletions
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65
tools/virsh-domain.c
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@ -4577,6 +4577,45 @@ static const vshCmdOptDef opts_vcpupin[] = {
{NULL, 0, 0, NULL}
};
/*
* Helper function to print vcpupin info.
*/
static bool
vshPrintPinInfo(unsigned char *cpumaps, size_t cpumaplen,
int maxcpu, int vcpuindex)
{
int cpu, lastcpu;
bool bit, lastbit, isInvert;
if (!cpumaps || cpumaplen <= 0 || maxcpu <= 0 || vcpuindex < 0) {
return false;
}
bit = lastbit = isInvert = false;
lastcpu = -1;
for (cpu = 0; cpu < maxcpu; cpu++) {
bit = VIR_CPU_USABLE(cpumaps, cpumaplen, vcpuindex, cpu);
isInvert = (bit ^ lastbit);
if (bit && isInvert) {
if (lastcpu == -1)
vshPrint(ctl, "%d", cpu);
else
vshPrint(ctl, ",%d", cpu);
lastcpu = cpu;
}
if (!bit && isInvert && lastcpu != cpu - 1)
vshPrint(ctl, "-%d", cpu - 1);
lastbit = bit;
}
if (bit && !isInvert) {
vshPrint(ctl, "-%d", maxcpu - 1);
}
return true;
}
static bool
cmdVcpuPin(vshControl *ctl, const vshCmd *cmd)
{
@ -4589,7 +4628,6 @@ cmdVcpuPin(vshControl *ctl, const vshCmd *cmd)
unsigned char *cpumap = NULL;
unsigned char *cpumaps = NULL;
size_t cpumaplen;
bool bit, lastbit, isInvert;
int i, cpu, lastcpu, maxcpu, ncpus;
bool unuse = false;
const char *cur;
@ -4674,30 +4712,11 @@ cmdVcpuPin(vshControl *ctl, const vshCmd *cmd)
if (vcpu != -1 && i != vcpu)
continue;
bit = lastbit = isInvert = false;
lastcpu = -1;
vshPrint(ctl, "%4d: ", i);
for (cpu = 0; cpu < maxcpu; cpu++) {
bit = VIR_CPU_USABLE(cpumaps, cpumaplen, i, cpu);
isInvert = (bit ^ lastbit);
if (bit && isInvert) {
if (lastcpu == -1)
vshPrint(ctl, "%d", cpu);
else
vshPrint(ctl, ",%d", cpu);
lastcpu = cpu;
}
if (!bit && isInvert && lastcpu != cpu - 1)
vshPrint(ctl, "-%d", cpu - 1);
lastbit = bit;
}
if (bit && !isInvert) {
vshPrint(ctl, "-%d", maxcpu - 1);
}
ret = vshPrintPinInfo(cpumaps, cpumaplen, maxcpu, i);
vshPrint(ctl, "\n");
if (!ret)
break;
}
} else {