6949307: G1: raise a vm error, do not core dump, if target pause time and target interval are inconsistent
Summary: First, change the guarantee to raising a vm error. Second, set the interval dynamically, and based on the pause time target, if it is not set explicitly.
Reviewed-by: ysr, johnc
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/* Posix threads (Solaris and Linux) */
#include <unistd.h>
#include <sys/wait.h>
#include <time.h>
#include <sys/time.h>
#include <pthread.h>
#define MUTEX_T pthread_mutex_t
#define MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
#define MUTEX_LOCK(x) (void)pthread_mutex_lock(&x)
#define MUTEX_UNLOCK(x) (void)pthread_mutex_unlock(&x)
#define GET_THREAD_ID() pthread_self()
#define THREAD_T pthread_t
#define PID_T pid_t
#define GETPID() getpid()
#define GETMILLSECS(millisecs) \
{ \
struct timeval tval; \
(void)gettimeofday(&tval,NULL); \
millisecs = ((int)(tval.tv_usec/1000)); \
}