libvirtd: fix bug when shrinking number of clients

* daemon/libvirtd.c (qemudRunLoop): Pass allocation size, not
current count, to VIR_SHRINK_N.
* docs/hacking.html.in: Update doc example.
* HACKING: Regenerate.

1 files changed, 3 insertions, 2 deletions

diff --git a/HACKING b/HACKING
index 35ceb2982..cd7559d58 100644
--- a/HACKING
+++ b/HACKING
@@ -347,13 +347,14 @@ scales better, but requires tracking allocation separately from usage)
 
 
 
-- To trim an array of domains to have one less element:
+- To trim an array of domains from its allocated size down to the actual used
+size:
 
   virDomainPtr domains;
   size_t ndomains = x;
   size_t ndomains_max = y;
 
-  VIR_SHRINK_N(domains, ndomains_max, 1);
+  VIR_SHRINK_N(domains, ndomains_max, ndomains_max - ndomains);