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#include "Globals.h"
#include "ace/Log_Msg.h"
#include "ace/OS_NS_string.h"
#include "ace/OS_NS_errno.h"
#include "ace/Null_Mutex.h"
Globals::Globals ()
: thr_create_flags (0),
default_priority (0),
ior_file (0),
num_of_objs (2),
thread_per_rate (0),
use_multiple_priority (0),
ready_ (0),
ready_cnd_ (ready_mtx_),
barrier_ (0)
{
const ACE_TCHAR default_endpoint[] = ACE_TEXT("iiop://");
// Default to iiop
ACE_OS::strcpy (endpoint, default_endpoint);
}
int
Globals::parse_args (int argc, ACE_TCHAR *argv[])
{
ACE_Get_Opt opts (argc, argv, ACE_TEXT("e:t:f:rm"));
int c;
while ((c = opts ()) != -1)
{
switch (c)
{
case 'm':
use_multiple_priority = 1;
break;
case 'r':
thread_per_rate = 1;
break;
case 'f':
ACE_NEW_RETURN (ior_file,
ACE_TCHAR[BUFSIZ],
-1);
ACE_OS::strcpy (ior_file,
opts.opt_arg ());
break;
case 'e':
ACE_OS::strcpy (endpoint,
opts.opt_arg ());
break;
case 't':
num_of_objs = ACE_OS::atoi (opts.opt_arg ());
break;
case '?':
default:
ACE_ERROR_RETURN ((LM_ERROR,
"usage: %s \t"
"[-e <endpoint>] // starting endpoint \n\t\t\t"
"[-t <number_of_servants>] // # of servant threads to create \n\t\t\t"
"[-f <ior_file> ] // specify a file to output all ior's \n\t\t\t"
"[-m ] // Use multiple priorities for threads\n\t\t\t"
"[-r ] // Run the thread-per-rate test \n"
,argv [0]),
-1);
}
}
if (thread_per_rate == 1)
num_of_objs = THREAD_PER_RATE_OBJS;
// Indicates successful parsing of the command-line.
return 0;
}
int
Globals::sched_fifo_init ()
{
#if defined (ACE_HAS_THREADS)
// Enable FIFO scheduling, e.g., RT scheduling class on Solaris.
# if defined (__APPLE__) || defined (BSD)
int scope = ACE_SCOPE_THREAD;
# else
int scope = ACE_SCOPE_PROCESS;
# endif /* __APPLE__ || BSD */
if (ACE_OS::sched_params (ACE_Sched_Params (ACE_SCHED_FIFO,
SCHED_PRIORITY,
scope)))
{
if (ACE_OS::last_error () == EPERM)
{
ACE_DEBUG ((LM_MAX,
"User is not superuser, "
"so remain in time-sharing class\n"));
ACE_SET_BITS (GLOBALS::instance ()->thr_create_flags, THR_NEW_LWP);
GLOBALS::instance ()->default_priority = ACE_THR_PRI_OTHER_DEF;
return 1;
}
else
ACE_ERROR_RETURN ((LM_ERROR,
"%n: ACE_OS::sched_params failed\n%a"),
-1);
}
ACE_SET_BITS (GLOBALS::instance ()->thr_create_flags, THR_BOUND);
ACE_SET_BITS (GLOBALS::instance ()->thr_create_flags, THR_SCHED_FIFO);
GLOBALS::instance ()->default_priority = ACE_THR_PRI_FIFO_DEF;
return 0;
#else
ACE_ERROR_RETURN ((LM_ERROR,
"Test will not run. This platform doesn't seem to have threads.\n"),
-1);
#endif /* ACE_HAS_THREADS */
}
MT_Priority::MT_Priority ()
: num_priorities_ (0),
grain_ (0)
{
}
MT_Priority::~MT_Priority ()
{
}
ACE_Sched_Priority
MT_Priority::get_high_priority ()
{
ACE_Sched_Priority high_priority;
#if defined (VXWORKS)
high_priority = GLOBALS::instance ()->default_priority;
#elif defined (ACE_WIN32)
high_priority =
ACE_Sched_Params::priority_max (ACE_SCHED_FIFO,
ACE_SCOPE_THREAD);
#else
high_priority = GLOBALS::instance ()->default_priority;
#endif /* VXWORKS */
return high_priority;
}
ACE_Sched_Priority
MT_Priority::get_low_priority (u_int num_low_priority,
ACE_Sched_Priority prev_priority,
u_int use_multiple_priority)
{
#if !defined (ACE_HAS_THREADS)
ACE_UNUSED_ARG (num_low_priority);
ACE_UNUSED_ARG (prev_priority);
ACE_UNUSED_ARG (use_multiple_priority);
return -1;
#else
ACE_Sched_Priority low_priority = ACE_THR_PRI_FIFO_DEF;
int policy = ACE_SCHED_FIFO;
if (!ACE_BIT_ENABLED (GLOBALS::instance ()->thr_create_flags,
THR_SCHED_FIFO))
{
low_priority = ACE_THR_PRI_OTHER_DEF;
policy = ACE_SCHED_OTHER;
}
// Drop the priority.
if (use_multiple_priority)
{
this->num_priorities_ = 0;
for (ACE_Sched_Priority_Iterator priority_iterator
(policy, ACE_SCOPE_THREAD);
priority_iterator.more ();
priority_iterator.next ())
this->num_priorities_++;
// 1 priority is exclusive for the high priority client.
this->num_priorities_--;
// Drop the priority, so that the priority of clients will
// increase with increasing client number.
for (u_int j = 0;
j < num_low_priority;
j++)
{
low_priority =
ACE_Sched_Params::previous_priority (policy,
prev_priority,
ACE_SCOPE_THREAD);
prev_priority = low_priority;
}
// Granularity of the assignment of the priorities. Some OSs
// have fewer levels of priorities than we have threads in our
// test, so with this mechanism we assign priorities to groups
// of threads when there are more threads than priorities.
this->grain_ = num_low_priority / this->num_priorities_;
if (this->grain_ <= 0)
this->grain_ = 1;
}
else
low_priority =
ACE_Sched_Params::previous_priority (policy,
prev_priority,
ACE_SCOPE_THREAD);
return low_priority;
#endif /* ACE_HAS_THREADS */
}
u_int
MT_Priority::number_of_priorities ()
{
return this->num_priorities_;
}
u_int
MT_Priority::grain ()
{
return this->grain_;
}
ACE_SINGLETON_TEMPLATE_INSTANTIATE(ACE_Singleton, Globals, ACE_Null_Mutex);
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