538 }
539 }
540 if (id_array != NULL) {
541 FREE_C_HEAP_ARRAY(processorid_t, id_array);
542 }
543 return result;
544 }
545
546 bool os::bind_to_processor(uint processor_id) {
547 // We assume that a processorid_t can be stored in a uint.
548 assert(sizeof(uint) == sizeof(processorid_t),
549 "can't convert uint to processorid_t");
550 int bind_result =
551 processor_bind(P_LWPID, // bind LWP.
552 P_MYID, // bind current LWP.
553 (processorid_t) processor_id, // id.
554 NULL); // don't return old binding.
555 return (bind_result == 0);
556 }
557
558 bool os::getenv(const char* name, char* buffer, int len) {
559 char* val = ::getenv(name);
560 if (val == NULL || strlen(val) + 1 > len) {
561 if (len > 0) buffer[0] = 0; // return a null string
562 return false;
563 }
564 strcpy(buffer, val);
565 return true;
566 }
567
568
569 // Return true if user is running as root.
570
571 bool os::have_special_privileges() {
572 static bool init = false;
573 static bool privileges = false;
574 if (!init) {
575 privileges = (getuid() != geteuid()) || (getgid() != getegid());
576 init = true;
577 }
578 return privileges;
579 }
580
581
582 void os::init_system_properties_values() {
583 // The next steps are taken in the product version:
584 //
585 // Obtain the JAVA_HOME value from the location of libjvm.so.
586 // This library should be located at:
587 // <JAVA_HOME>/jre/lib/<arch>/{client|server}/libjvm.so.
588 //
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538 }
539 }
540 if (id_array != NULL) {
541 FREE_C_HEAP_ARRAY(processorid_t, id_array);
542 }
543 return result;
544 }
545
546 bool os::bind_to_processor(uint processor_id) {
547 // We assume that a processorid_t can be stored in a uint.
548 assert(sizeof(uint) == sizeof(processorid_t),
549 "can't convert uint to processorid_t");
550 int bind_result =
551 processor_bind(P_LWPID, // bind LWP.
552 P_MYID, // bind current LWP.
553 (processorid_t) processor_id, // id.
554 NULL); // don't return old binding.
555 return (bind_result == 0);
556 }
557
558 // Return true if user is running as root.
559
560 bool os::have_special_privileges() {
561 static bool init = false;
562 static bool privileges = false;
563 if (!init) {
564 privileges = (getuid() != geteuid()) || (getgid() != getegid());
565 init = true;
566 }
567 return privileges;
568 }
569
570
571 void os::init_system_properties_values() {
572 // The next steps are taken in the product version:
573 //
574 // Obtain the JAVA_HOME value from the location of libjvm.so.
575 // This library should be located at:
576 // <JAVA_HOME>/jre/lib/<arch>/{client|server}/libjvm.so.
577 //
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