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cont.c (struct rb_fiber_struct): bitfields for trasnferred and status

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On 32-bit x86, this reduces the struct from 836 to 832 bytes and
brings us down to 13 (64-byte) cachelines (from 14).

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64487 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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normal 2018-08-20 23:48:03 +00:00
parent 39c64117f6
commit aba0929a5a
1 changed files with 2 additions and 2 deletions
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4
cont.c
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@ -175,12 +175,12 @@ struct rb_fiber_struct {
rb_context_t cont; rb_context_t cont;
VALUE first_proc; VALUE first_proc;
struct rb_fiber_struct *prev; struct rb_fiber_struct *prev;
enum fiber_status status; BITFIELD(enum fiber_status status) : 2;
/* If a fiber invokes "transfer", /* If a fiber invokes "transfer",
* then this fiber can't "resume" any more after that. * then this fiber can't "resume" any more after that.
* You shouldn't mix "transfer" and "resume". * You shouldn't mix "transfer" and "resume".
*/ */
int transferred; unsigned int transferred : 1;
#if FIBER_USE_NATIVE #if FIBER_USE_NATIVE
#ifdef _WIN32 #ifdef _WIN32