struct RaceRecord {
modelclock_t *readClock;
thread_id_t *thread;
- int capacity;
- int numReads;
+ int numReads : 31;
+ int isAtomic : 1;
thread_id_t writeThread;
modelclock_t writeClock;
};
#define WRITEMASK READMASK
#define WRITEVECTOR(x) (((x)>>38)&WRITEMASK)
+#define ATOMICMASK (0x1ULL << 63)
+#define NONATOMICMASK ~(0x1ULL << 63)
+
/**
* The basic encoding idea is that (void *) either:
* -# points to a full record (RaceRecord) or
* - next 25 bits are read clock vector
* - next 6 bits are write thread id
* - next 25 bits are write clock vector
+ * - highest bit is 1 if the write is from an atomic
*/
#define ENCODEOP(rdthread, rdtime, wrthread, wrtime) (0x1ULL | ((rdthread)<<1) | ((rdtime) << 7) | (((uint64_t)wrthread)<<32) | (((uint64_t)wrtime)<<38))