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This commit is contained in:
David Rose 2000-11-22 01:29:42 +00:00
parent 1a05db3f46
commit d01a189d8f
3 changed files with 32 additions and 11 deletions
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15
panda/src/express/config_express.cxx
View File

@ -49,6 +49,21 @@ get_leak_memory() {
//const bool track_memory_usage = config_express.GetBool("track-memory-usage", false); //const bool track_memory_usage = config_express.GetBool("track-memory-usage", false);
// Set this to false to avoid using the high-precision clock, even if
// it is available.
bool
get_use_high_res_clock() {
static bool got_use_high_res_clock = false;
static bool use_high_res_clock;
if (!got_use_high_res_clock) {
use_high_res_clock = config_express.GetBool("use-high-res-clock", true);
got_use_high_res_clock = true;
}
return use_high_res_clock;
}
const int patchfile_window_size = const int patchfile_window_size =
config_express.GetInt("patchfile-window-size", 16); config_express.GetInt("patchfile-window-size", 16);

1
panda/src/express/config_express.h
View File

@ -21,6 +21,7 @@ NotifyCategoryDecl(express, EXPCL_PANDAEXPRESS, EXPTP_PANDAEXPRESS);
//extern EXPCL_PANDAEXPRESS const bool track_memory_usage; //extern EXPCL_PANDAEXPRESS const bool track_memory_usage;
bool get_leak_memory(); bool get_leak_memory();
bool get_use_high_res_clock();
extern const int patchfile_window_size; extern const int patchfile_window_size;
extern const int patchfile_increment_size; extern const int patchfile_increment_size;

27
panda/src/express/trueClock.cxx
View File

@ -37,14 +37,6 @@ get_real_time() const {
LARGE_INTEGER count; LARGE_INTEGER count;
QueryPerformanceCounter(&count); QueryPerformanceCounter(&count);
if (_init_count > count.QuadPart)
_init_count = count.QuadPart;
if (_frequency < 0) {
express_cat.error()
<< "TrueClock::get_real_time() - frequency is negative!" << endl;
QueryPerformanceFrequency((LARGE_INTEGER *)&_frequency);
}
return (double)(count.QuadPart - _init_count) / (double)_frequency; return (double)(count.QuadPart - _init_count) / (double)_frequency;
} else { } else {
@ -57,12 +49,25 @@ get_real_time() const {
TrueClock:: TrueClock::
TrueClock() { TrueClock() {
_has_high_res = QueryPerformanceFrequency((LARGE_INTEGER *)&_frequency); _has_high_res = false;
if (get_use_high_res_clock()) {
_has_high_res = QueryPerformanceFrequency((LARGE_INTEGER *)&_frequency);
}
if (_has_high_res) { if (_has_high_res) {
QueryPerformanceCounter((LARGE_INTEGER *)&_init_count); LARGE_INTEGER count;
QueryPerformanceCounter(&count);
_init_count = count.QuadPart;
} else { if (_frequency <= 0) {
express_cat.error()
<< "TrueClock::get_real_time() - frequency is negative!" << endl;
_has_high_res = false;
}
}
if (!_has_high_res) {
express_cat.warning() express_cat.warning()
<< "No high resolution clock available." << endl; << "No high resolution clock available." << endl;