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* pinfo.cc (_pinfo::commune_send): Set priority low when sleeping, waiting for 

commune completion so that we don't spin waiting for lower priority processes.
This commit is contained in:
Christopher Faylor 2002-11-05 04:43:02 +00:00
parent 73f7245be2
commit d263732238
2 changed files with 12 additions and 1 deletions
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6
winsup/cygwin/ChangeLog
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@ -1,3 +1,9 @@
2002-11-04 Christopher Faylor <cgf@redhat.com>
* pinfo.cc (_pinfo::commune_send): Set priority low when sleeping,
waiting for commune completion so that we don't spin waiting for lower
priority processes.
2002-11-04 Christopher Faylor <cgf@redhat.com>
* sigproc.cc (WAIT_SIG_PRIORITY): Bump to THREAD_PRIORITY_TIME_CRITICAL.

7
winsup/cygwin/pinfo.cc
View File

@ -362,12 +362,17 @@ _pinfo::commune_send (DWORD code)
if (sig_send (this, __SIGCOMMUNE))
goto err;
/* FIXME: Need something better than an busy loop here */
bool isalive;
while ((isalive = alive ()))
if (myself->hello_pid <= 0)
break;
else
Sleep (0);
{
DWORD prio = SetThreadPriority (GetCurrentThread (), THREAD_PRIORITY_IDLE);
Sleep (0);
SetThreadPriority (GetCurrentThread (), prio);
}
CloseHandle (tome);
tome = NULL;