[libvirt] [PATCH 1/2] Rewrite vshPrintPinInfo

[Ján Tomko]

Use virBitmapDataToString instead of constructing the ranges bit
by bit, remove the checking of parameters (that is already done
by the callers).

Let the callers choose the right bitmap, since there's only
one that uses this helper on a matrix-in-an-array.
---
 tools/virsh-domain.c | 41 ++++++++++-------------------------------
 1 file changed, 10 insertions(+), 31 deletions(-)

diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index 928360c..d5352d7 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -6322,36 +6322,15 @@ static const vshCmdOptDef opts_vcpupin[] = {
  * Helper function to print vcpupin info.
  */
 static bool
-vshPrintPinInfo(unsigned char *cpumaps, size_t cpumaplen,
-                int maxcpu, int vcpuindex)
+vshPrintPinInfo(unsigned char *cpumap, size_t cpumaplen)
 {
-    int cpu, lastcpu;
-    bool bit, lastbit, isInvert;
+    char *str = NULL;
 
-    if (!cpumaps || cpumaplen <= 0 || maxcpu <= 0 || vcpuindex < 0)
+    if (!(str = virBitmapDataToString(cpumap, cpumaplen)))
         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);
-
+    vshPrint(ctl, "%s", str);
+    VIR_FREE(str);
     return true;
 }
 
@@ -6526,7 +6505,8 @@ cmdVcpuPin(vshControl *ctl, const vshCmd *cmd)
                     continue;
 
                 vshPrint(ctl, "%4zu: ", i);
-                ret = vshPrintPinInfo(cpumap, cpumaplen, maxcpu, i);
+                ret = vshPrintPinInfo(VIR_GET_CPUMAP(cpumap, cpumaplen, i),
+                                      cpumaplen);
                 vshPrint(ctl, "\n");
                 if (!ret)
                     break;
@@ -6643,12 +6623,12 @@ cmdEmulatorPin(vshControl *ctl, const vshCmd *cmd)
             flags = VIR_DOMAIN_AFFECT_CURRENT;
 
         cpumaps = vshMalloc(ctl, cpumaplen);
-        if (virDomainGetEmulatorPinInfo(dom, cpumaps,
+        if (virDomainGetEmulatorPinInfo(dom, cpumap,
                                         cpumaplen, flags) >= 0) {
             vshPrintExtra(ctl, "%s %s\n", _("emulator:"), _("CPU Affinity"));
             vshPrintExtra(ctl, "----------------------------------\n");
             vshPrintExtra(ctl, "       *: ");
-            ret = vshPrintPinInfo(cpumaps, cpumaplen, maxcpu, 0);
+            ret = vshPrintPinInfo(cpumap, cpumaplen);
             vshPrint(ctl, "\n");
         }
         VIR_FREE(cpumaps);
@@ -6865,8 +6845,7 @@ cmdIOThreadInfo(vshControl *ctl, const vshCmd *cmd)
     for (i = 0; i < niothreads; i++) {
 
         vshPrint(ctl, " %-15u ", info[i]->iothread_id);
-        ignore_value(vshPrintPinInfo(info[i]->cpumap, info[i]->cpumaplen,
-                                     maxcpu, 0));
+        ignore_value(vshPrintPinInfo(info[i]->cpumap, info[i]->cpumaplen));
         vshPrint(ctl, "\n");
         virDomainIOThreadInfoFree(info[i]);
     }
-- 
2.0.5