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Revert "Cygwin: select: Improve select/poll response." 

... because this commit (23bb19ef) causes high CPU load.
This commit is contained in:
Takashi Yano 2021-09-08 19:22:40 +09:00 committed by Corinna Vinschen
parent 99be238347
commit b07660ac19
1 changed files with 4 additions and 28 deletions
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24
winsup/cygwin/select.cc
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@ -726,7 +726,6 @@ thread_pipe (void *arg)
select_pipe_info *pi = (select_pipe_info *) arg; select_pipe_info *pi = (select_pipe_info *) arg;
DWORD sleep_time = 0; DWORD sleep_time = 0;
bool looping = true; bool looping = true;
DWORD t0 = GetTickCount ();
while (looping) while (looping)
{ {
@ -746,12 +745,7 @@ thread_pipe (void *arg)
break; break;
cygwait (pi->bye, sleep_time >> 3); cygwait (pi->bye, sleep_time >> 3);
if (sleep_time < 80) if (sleep_time < 80)
{
DWORD t1 = GetTickCount ();
if (t0 != t1)
++sleep_time; ++sleep_time;
t0 = t1;
}
if (pi->stop_thread) if (pi->stop_thread)
break; break;
} }
@ -927,7 +921,6 @@ thread_fifo (void *arg)
select_fifo_info *pi = (select_fifo_info *) arg; select_fifo_info *pi = (select_fifo_info *) arg;
DWORD sleep_time = 0; DWORD sleep_time = 0;
bool looping = true; bool looping = true;
DWORD t0 = GetTickCount ();
while (looping) while (looping)
{ {
@ -947,12 +940,7 @@ thread_fifo (void *arg)
break; break;
cygwait (pi->bye, sleep_time >> 3); cygwait (pi->bye, sleep_time >> 3);
if (sleep_time < 80) if (sleep_time < 80)
{
DWORD t1 = GetTickCount ();
if (t0 != t1)
++sleep_time; ++sleep_time;
t0 = t1;
}
if (pi->stop_thread) if (pi->stop_thread)
break; break;
} }
@ -1128,7 +1116,6 @@ thread_console (void *arg)
select_console_info *ci = (select_console_info *) arg; select_console_info *ci = (select_console_info *) arg;
DWORD sleep_time = 0; DWORD sleep_time = 0;
bool looping = true; bool looping = true;
DWORD t0 = GetTickCount ();
while (looping) while (looping)
{ {
@ -1148,12 +1135,7 @@ thread_console (void *arg)
break; break;
cygwait (ci->bye, sleep_time >> 3); cygwait (ci->bye, sleep_time >> 3);
if (sleep_time < 80) if (sleep_time < 80)
{
DWORD t1 = GetTickCount ();
if (t0 != t1)
++sleep_time; ++sleep_time;
t0 = t1;
}
if (ci->stop_thread) if (ci->stop_thread)
break; break;
} }
@ -1373,7 +1355,6 @@ thread_pty_slave (void *arg)
select_pipe_info *pi = (select_pipe_info *) arg; select_pipe_info *pi = (select_pipe_info *) arg;
DWORD sleep_time = 0; DWORD sleep_time = 0;
bool looping = true; bool looping = true;
DWORD t0 = GetTickCount ();
while (looping) while (looping)
{ {
@ -1393,12 +1374,7 @@ thread_pty_slave (void *arg)
break; break;
cygwait (pi->bye, sleep_time >> 3); cygwait (pi->bye, sleep_time >> 3);
if (sleep_time < 80) if (sleep_time < 80)
{
DWORD t1 = GetTickCount ();
if (t0 != t1)
++sleep_time; ++sleep_time;
t0 = t1;
}
if (pi->stop_thread) if (pi->stop_thread)
break; break;
} }