On 03/08/2016 04:36, Fam Zheng wrote: > On Tue, 08/02 15:45, Paolo Bonzini wrote: >> >> >> ----- Original Message ----- >>> From: "Fam Zheng" <f...@redhat.com> >>> To: qemu-devel@nongnu.org >>> Cc: f...@redhat.com, berra...@redhat.com, pbonz...@redhat.com, >>> kw...@redhat.com, mre...@redhat.com, >>> mdr...@linux.vnet.ibm.com, arm...@redhat.com, s...@weilnetz.de, >>> qemu-bl...@nongnu.org >>> Sent: Tuesday, August 2, 2016 11:18:32 AM >>> Subject: [PATCH 1/7] util: Add UUID API >>> >>> A number of different places across the code base use CONFIG_UUID. Some >>> of them are soft dependency, some are not built if libuuid is not >>> available, some come with dummy fallback, some throws runtime error. >>> >>> It is hard to maintain, and hard to reason for users. >>> >>> Since UUID is a simple standard with only a small number of operations, >>> it is cleaner to have a central support in libqemuutil. This patch adds >>> qemu_uuid_* the functions so that all uuid users in the code base can >>> rely on. Except for qemu_uuid_generate which is new code, all other >>> functions are just copy from existing fallbacks from other files. >> >> How is g_random_* seeded? > > According to glib doc: > >> GLib changed the seeding algorithm for the pseudo-random number generator >> Mersenne Twister, as used by GRand. > > The urandom source is /dev/urandom (or time based if unavailable).
That's great then. Paolo
