40 #include <sys/resource.h>
47 #include "BESMemoryGlobalArea.h"
48 #include "BESInternalFatalError.h"
51 #include "TheBESKeys.h"
53 int BESMemoryGlobalArea::_counter = 0;
54 unsigned long BESMemoryGlobalArea::_size = 0;
55 void* BESMemoryGlobalArea::_buffer = 0;
57 BESMemoryGlobalArea::BESMemoryGlobalArea()
62 if (_counter++ == 0) {
65 string key =
"BES.Memory.GlobalArea.";
79 if ((eps ==
"") || (mhs ==
"") || (verbose ==
"") || (control_heap ==
"")) {
80 string line =
"cannot determine memory keys.";
81 line += (string)
"Please set values for" +
" BES.Memory.GlobalArea.EmergencyPoolSize,"
82 +
" BES.Memory.GlobalArea.MaxiumumHeapSize," +
" BES.Memory.GlobalArea.Verbose, and"
83 +
" BES.Memory.GlobalArea.ControlHeap" +
" in the BES configuration file.";
87 if (verbose ==
"no") BESLog::TheLog()->
suspend();
89 unsigned int emergency = atol(eps.c_str());
91 if (control_heap ==
"yes") {
92 unsigned int max = atol(mhs.c_str());
94 LOG(
"Initialize emergency heap size to " << (
unsigned long)emergency <<
" and heap size to " << (
unsigned long)(max + 1) <<
" MB" << endl);
95 if (emergency > max) {
96 string s = string(
"BES: ") +
"unable to start since the emergency "
97 +
"pool is larger than the maximum size of " +
"the heap.\n";
101 log_limits(
"before setting limits: ");
102 limit.rlim_cur = megabytes(max + 1);
103 limit.rlim_max = megabytes(max + 1);
104 if (setrlimit( RLIMIT_DATA, &limit) < 0) {
105 string s = string(
"BES: ") +
"Could not set limit for the heap " +
"because " + strerror(errno)
107 if ( errno == EPERM) {
108 s = s +
"Attempting to increase the soft/hard " +
"limit above the current hard limit, "
109 +
"must be superuser\n";
114 log_limits(
"after setting limits: ");
116 _buffer = malloc(megabytes(max));
118 string s = string(
"BES: ") +
"cannot get heap of size " + mhs +
" to start running";
125 if (emergency > 10) {
126 string s =
"Emergency pool is larger than 10 Megabytes";
131 _size = megabytes(emergency);
133 _buffer = malloc(_size);
135 string s = (string)
"BES: cannot expand heap to " + eps +
" to start running";
142 cerr <<
"BES: unable to start properly because " << ex.
get_message() << endl;
146 cerr <<
"BES: unable to start: undefined exception happened\n";
151 BESLog::TheLog()->
resume();
154 BESMemoryGlobalArea::~BESMemoryGlobalArea()
156 if (--_counter == 0) {
157 if (_buffer) free(_buffer);
162 inline void BESMemoryGlobalArea::log_limits(
const string &msg)
164 if (getrlimit( RLIMIT_DATA, &limit) < 0) {
165 LOG(msg <<
"Could not get limits because " << strerror( errno) << endl);
169 if (limit.rlim_cur == RLIM_INFINITY)
170 LOG(msg <<
"BES heap size soft limit is infinite" << endl);
172 LOG(msg <<
"BES heap size soft limit is " << (
long int) limit.rlim_cur <<
" bytes ("
173 << (
long int) (limit.rlim_cur) / (MEGABYTE) <<
" MB - may be rounded up)" << endl);
174 if (limit.rlim_max == RLIM_INFINITY)
175 LOG(msg <<
"BES heap size hard limit is infinite" << endl);
177 LOG(
"BES heap size hard limit is " << (
long int) limit.rlim_max <<
" bytes ("
178 << (
long int) (limit.rlim_max) / (MEGABYTE) <<
" MB - may be rounded up)" << endl);
181 void BESMemoryGlobalArea::release_memory()
189 bool BESMemoryGlobalArea::reclaim_memory()
191 if (!_buffer) _buffer = malloc(_size);
207 strm << BESIndent::LMarg <<
"BESMemoryGlobalArea::dump - (" << (
void *)
this <<
")" << endl;
209 strm << BESIndent::LMarg <<
"area set? " << _counter << endl;
210 strm << BESIndent::LMarg <<
"emergency buffer: " << (
void *) _buffer << endl;
211 strm << BESIndent::LMarg <<
"buffer size: " << _size << endl;
212 strm << BESIndent::LMarg <<
"rlimit current: " << limit.rlim_cur << endl;
213 strm << BESIndent::LMarg <<
"rlimit max: " << limit.rlim_max << endl;
214 BESIndent::UnIndent();