template <class KEY, class VALUE, class CONTAINER, class ITERATOR, class ATTRIBUTES> int
ACE_Refcounted_Recyclable_Handler_Caching_Utility<KEY, VALUE, CONTAINER, ITERATOR, ATTRIBUTES>::clear_cache (CONTAINER &container,
double purge_percent)
{
// Check that the purge_percent is non-zero.
if (purge_percent == 0)
return 0;
// Get the number of entries in the container which can be considered for purging.
size_t const available_entries =
container.current_size () - this->marked_as_closed_entries_;
// Also whether the number of entries in the cache zero.
// Oops! then there is no way out but exiting.
if (available_entries <= 0)
return 0;
// Calculate the no of entries to remove from the cache depending
// upon the <purge_percent>.
size_t entries_to_remove
= ACE_MAX (static_cast<size_t> (1),
static_cast<size_t> (static_cast<double> (purge_percent)
/ 100 * available_entries));
if (entries_to_remove >= available_entries || entries_to_remove == 0)
entries_to_remove = available_entries - 1;
KEY *key_to_remove = 0;
VALUE *value_to_remove = 0;
for (size_t i = 0; i < entries_to_remove ; ++i)
{
this->minimum (container,
key_to_remove,
value_to_remove);
// Simply verifying that the key is non-zero.
// This is important for strategies where the minimum
// entry cant be found due to constraints on the type of entry
// to remove.
if (key_to_remove == 0)
return 0;
if (this->cleanup_strategy_->cleanup (container,
key_to_remove,
value_to_remove) == -1)
return -1;
++this->marked_as_closed_entries_;
}
return 0;
}
template <class KEY, class VALUE, class CONTAINER, class ITERATOR, class ATTRIBUTES> int
ACE_Recyclable_Handler_Caching_Utility<KEY, VALUE, CONTAINER, ITERATOR, ATTRIBUTES>::clear_cache (CONTAINER &container,
double purge_percent)
{
// Check that the purge_percent is non-zero.
if (purge_percent == 0)
return 0;
// Get the number of entries in the container.
size_t current_map_size = container.current_size ();
// Also whether the number of entries in the cache is just one!
// Oops! then there is no way out but exiting. So return an error.
// if (current_map_size <= 1)
if (current_map_size == 0)
return 0;
// Calculate the no of entries to remove from the cache depending
// upon the <purge_percent>.
size_t const entries_to_remove
= ACE_MAX (static_cast<size_t> (1),
static_cast<size_t> (static_cast<double> (purge_percent)
/ 100 * current_map_size));
KEY *key_to_remove = 0;
VALUE *value_to_remove = 0;
for (size_t i = 0; i < entries_to_remove ; ++i)
{
this->minimum (container,
key_to_remove,
value_to_remove);
// Simply verifying that the key is non-zero.
// This is important for strategies where the minimum
// entry cant be found due to constraints on the type of entry
// to remove.
if (key_to_remove == 0)
return 0;
if (this->cleanup_strategy_->cleanup (container,
key_to_remove,
value_to_remove) == -1)
return -1;
}
return 0;
}
template <class KEY, class VALUE, class CONTAINER, class ITERATOR, class ATTRIBUTES> int
ACE_Handler_Caching_Utility<KEY, VALUE, CONTAINER, ITERATOR, ATTRIBUTES>::clear_cache (CONTAINER &container,
double purge_percent)
{
// Check that the purge_percent is non-zero.
if (ACE::is_equal (purge_percent, 0.0))
return 0;
// Get the number of entries in the container.
size_t current_map_size = container.current_size ();
// Also whether the number of entries in the cache is just one!
// Oops! then there is no way out but exiting. So return an error.
if (current_map_size == 0)
return 0;
// Calculate the no of entries to remove from the cache depending
// upon the <purge_percent>.
size_t entries_to_remove
= ACE_MAX (static_cast<size_t> (1),
static_cast<size_t> (static_cast<double> (purge_percent)
/ 100 * current_map_size));
KEY *key_to_remove = 0;
VALUE *value_to_remove = 0;
for (size_t i = 0; i < entries_to_remove ; ++i)
{
this->minimum (container,
key_to_remove,
value_to_remove);
if (this->cleanup_strategy_->cleanup (container,
key_to_remove,
value_to_remove) == -1)
return -1;
}
return 0;
}
int
MCT_Config::open (int argc, ACE_TCHAR *argv[])
{
int retval = 0;
int help = 0;
//FUZZ: disable check_for_lack_ACE_OS
ACE_Get_Opt getopt (argc, argv, ACE_TEXT (":?"), 1, 1);
//FUZZ: enable check_for_lack_ACE_OS
if (getopt.long_option (ACE_TEXT ("GroupStart"),
'g',
ACE_Get_Opt::ARG_REQUIRED) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT (" Unable to add GroupStart option.\n")),
1);
if (getopt.long_option (ACE_TEXT ("Groups"),
'n',
ACE_Get_Opt::ARG_REQUIRED) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT (" Unable to add Groups option.\n")), 1);
if (getopt.long_option (ACE_TEXT ("Debug"),
'd',
ACE_Get_Opt::NO_ARG) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT (" Unable to add Debug option.\n")), 1);
if (getopt.long_option (ACE_TEXT ("Role"),
'r',
ACE_Get_Opt::ARG_REQUIRED) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT (" Unable to add Role option.\n")), 1);
if (getopt.long_option (ACE_TEXT ("SDM_options"),
'm',
ACE_Get_Opt::ARG_REQUIRED) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT (" Unable to add Multicast_Options option.\n")),
1);
if (getopt.long_option (ACE_TEXT ("Iterations"),
'i',
ACE_Get_Opt::ARG_REQUIRED) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT (" Unable to add iterations option.\n")),
1);
if (getopt.long_option (ACE_TEXT ("TTL"),
't',
ACE_Get_Opt::ARG_REQUIRED) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT (" Unable to add TTL option.\n")),
1);
if (getopt.long_option (ACE_TEXT ("Wait"),
'w',
ACE_Get_Opt::ARG_REQUIRED) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT (" Unable to add wait option.\n")),
1);
if (getopt.long_option (ACE_TEXT ("help"),
'h',
ACE_Get_Opt::NO_ARG) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT (" Unable to add help option.\n")),
1);
//FUZZ: disable check_for_lack_ACE_OS
// Now, let's parse it...
int c = 0;
while ((c = getopt ()) != EOF)
{
//FUZZ: enable check_for_lack_ACE_OS
switch (c)
{
case 0:
// Long Option. This should never happen.
retval = -1;
break;
case 'g':
{
// @todo validate all these, i.e., must be within range
// 224.255.0.0 to 238.255.255.255, but we only allow the
// administrative "site local" range, 239.255.0.0 to
// 239.255.255.255.
ACE_TCHAR *group = getopt.opt_arg ();
if (this->group_start_.set (group) != 0)
{
ACE_ERROR ((LM_ERROR, ACE_TEXT ("Bad group address:%s\n"),
group));
}
}
break;
case 'i':
this->iterations_ = ACE_OS::atoi (getopt.opt_arg ());
break;
case 'n':
{
int n = ACE_OS::atoi (getopt.opt_arg ());
// I'm assuming 0 means unlimited, so just use whatever the
// user provides. Seems to work okay on Solaris 5.8.
if (IP_MAX_MEMBERSHIPS == 0)
this->groups_ = n;
else
this->groups_ = ACE_MIN (ACE_MAX (n, MCT_MIN_GROUPS),
IP_MAX_MEMBERSHIPS);
break;
}
case 'd':
this->debug_ = 1;
break;
case 'r':
{
ACE_TCHAR *c = getopt.opt_arg ();
if (ACE_OS::strcasecmp (c, ACE_TEXT ("CONSUMER")) == 0)
this->role_ = CONSUMER;
else if (ACE_OS::strcasecmp (c, ACE_TEXT ("PRODUCER")) == 0)
this->role_ = PRODUCER;
else
{
help = 1;
retval = -1;
}
}
break;
case 'm':
{
//@todo add back OPT_BINDADDR_NO...
ACE_TCHAR *c = getopt.opt_arg ();
if (ACE_OS::strcasecmp (c, ACE_TEXT ("OPT_BINDADDR_YES")) == 0)
ACE_SET_BITS (this->sdm_opts_,
ACE_SOCK_Dgram_Mcast::OPT_BINDADDR_YES);
else if (ACE_OS::strcasecmp (c, ACE_TEXT ("OPT_BINDADDR_NO")) == 0)
ACE_CLR_BITS (this->sdm_opts_,
ACE_SOCK_Dgram_Mcast::OPT_BINDADDR_YES);
else if (ACE_OS::strcasecmp (c, ACE_TEXT ("DEFOPT_BINDADDR")) == 0)
{
ACE_CLR_BITS (this->sdm_opts_,
ACE_SOCK_Dgram_Mcast::OPT_BINDADDR_YES);
ACE_SET_BITS (this->sdm_opts_,
ACE_SOCK_Dgram_Mcast::DEFOPT_BINDADDR);
}
else if (ACE_OS::strcasecmp (c, ACE_TEXT ("OPT_NULLIFACE_ALL")) == 0)
ACE_SET_BITS (this->sdm_opts_,
ACE_SOCK_Dgram_Mcast::OPT_NULLIFACE_ALL);
else if (ACE_OS::strcasecmp (c, ACE_TEXT ("OPT_NULLIFACE_ONE")) == 0)
ACE_CLR_BITS (this->sdm_opts_,
ACE_SOCK_Dgram_Mcast::OPT_NULLIFACE_ALL);
else if (ACE_OS::strcasecmp (c, ACE_TEXT ("DEFOPT_NULLIFACE")) == 0)
{
ACE_CLR_BITS (this->sdm_opts_,
ACE_SOCK_Dgram_Mcast::OPT_NULLIFACE_ALL);
ACE_SET_BITS (this->sdm_opts_,
ACE_SOCK_Dgram_Mcast::DEFOPT_NULLIFACE);
}
else if (ACE_OS::strcasecmp (c, ACE_TEXT ("DEFOPTS")) == 0)
this->sdm_opts_ = ACE_SOCK_Dgram_Mcast::DEFOPTS;
else
{
help = 1;
retval = -1;
}
}
break;
case 't':
this->ttl_ = ACE_OS::atoi (getopt.opt_arg ());
break;
case 'w':
this->wait_ = ACE_OS::atoi (getopt.opt_arg ());
break;
case ':':
// This means an option requiring an argument didn't have one.
ACE_ERROR ((LM_ERROR,
ACE_TEXT (" Option '%c' requires an argument but ")
ACE_TEXT ("none was supplied\n"),
getopt.opt_opt ()));
help = 1;
retval = -1;
break;
case '?':
case 'h':
default:
if (ACE_OS::strcmp (argv[getopt.opt_ind () - 1], ACE_TEXT ("-?")) != 0
&& getopt.opt_opt () != 'h')
// Don't allow unknown options.
ACE_ERROR ((LM_ERROR,
ACE_TEXT (" Found an unknown option (%c) ")
ACE_TEXT ("we couldn't handle.\n"),
getopt.opt_opt ()));
// getopt.last_option ())); //readd with "%s" when
// last_option() is available.
help = 1;
retval = -1;
break;
}
}
if (retval == -1)
{
if (help)
// print usage here
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("usage: %s [options]\n")
ACE_TEXT ("Options:\n")
ACE_TEXT (" -g {STRING} --GroupStart={STRING} ")
ACE_TEXT ("starting multicast group address\n")
ACE_TEXT (" ")
ACE_TEXT ("(default=239.255.0.1:16000)\n")
ACE_TEXT (" -n {#} --Groups={#} ")
ACE_TEXT ("number of groups (default=5)\n")
ACE_TEXT (" -d --Debug ")
ACE_TEXT ("debug flag (default=off)\n")
ACE_TEXT (" -r {STRING} --Role={STRING} ")
ACE_TEXT ("role {PRODUCER|CONSUMER|BOTH}\n")
ACE_TEXT (" ")
ACE_TEXT ("(default=BOTH)\n")
ACE_TEXT (" -m {STRING} --SDM_options={STRING} ")
ACE_TEXT ("ACE_SOCK_Dgram_Mcast ctor options\n")
ACE_TEXT (" ")
ACE_TEXT ("(default=DEFOPTS)\n")
ACE_TEXT (" -i {#} --Iterations={#} ")
ACE_TEXT ("number of iterations (default=100)\n")
ACE_TEXT (" -t {#} --TTL={#} ")
ACE_TEXT ("time to live (default=1)\n")
ACE_TEXT (" -w {#} --Wait={#} ")
ACE_TEXT ("number of seconds to wait on CONSUMER\n")
ACE_TEXT (" ")
ACE_TEXT ("(default=2)\n")
ACE_TEXT (" -h/? --help ")
ACE_TEXT ("show this message\n"),
argv[0]));
return -1;
}
return 0;
}
static inline size_t
determine_starting_frame (ssize_t initial_frame, ssize_t offset)
{
return ACE_MAX( initial_frame + offset, static_cast<ssize_t>(0));
}
