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From: | Richard Henderson |
Subject: | Re: [Qemu-devel] [PATCH v2 06/13] qemu-thread: add simple test-and-set spinlock |
Date: | Fri, 8 Apr 2016 14:31:18 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.7.1 |
On 04/08/2016 02:26 PM, Paolo Bonzini wrote: > > > On 08/04/2016 23:24, Alex Bennée wrote: >>> Except that quite a lot of hosts can only (efficiently) do atomic >>> operations on >>> a minimum of 4 byte quantities. I'd rather continue to use int here. >> >> I suspect bool == unsigned int underneath. But having true/false and 0/1 >> mixed up >> gets confusing even if they are equivalent. > > Sometimes sizeof(bool) == 1. sizeof(bool) == 1 everywhere except MacOSX, where it's 4. r~
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