static const StoreEntry *
heap_walkNext(RemovalPolicyWalker * walker)
{
HeapWalkData *heap_walk = walker->_data;
RemovalPolicy *policy = walker->_policy;
HeapPolicyData *heap = policy->_data;
StoreEntry *entry;
if (heap_walk->current >= heap_nodes(heap->heap))
return NULL; /* done */
entry = (StoreEntry *) heap_peep(heap->heap, heap_walk->current++);
return entry;
}
int
storeDirWriteCleanLogs(int reopen)
{
StoreEntry *e = NULL;
int n = 0;
struct timeval start;
double dt;
SwapDir *sd;
int dirn;
int N = Config.cacheSwap.n_configured;
#if HEAP_REPLACEMENT
int node;
#else
dlink_node *m;
#endif
if (store_dirs_rebuilding) {
debug(20, 1) ("Not currently OK to rewrite swap log.\n");
debug(20, 1) ("storeDirWriteCleanLogs: Operation aborted.\n");
return 0;
}
debug(20, 1) ("storeDirWriteCleanLogs: Starting...\n");
getCurrentTime();
start = current_time;
for (dirn = 0; dirn < Config.cacheSwap.n_configured; dirn++) {
sd = &Config.cacheSwap.swapDirs[dirn];
if (sd->log.clean.open(sd) < 0) {
debug(20, 1) ("log.clean.open() failed for dir #%d\n", sd->index);
continue;
}
}
#if HEAP_REPLACEMENT
if (NULL == store_heap)
return 0;
for (node = 0; node < heap_nodes(store_heap); node++)
#else
for (m = store_list.tail; m; m = m->prev)
#endif
{
#if HEAP_REPLACEMENT
e = (StoreEntry *) heap_peep(store_heap, node);
#else
e = m->data;
#endif
if (e->swap_file_number < 0)
continue;
if (e->swap_status != SWAPOUT_DONE)
continue;
if (e->swap_file_sz <= 0)
continue;
if (EBIT_TEST(e->flags, RELEASE_REQUEST))
continue;
if (EBIT_TEST(e->flags, KEY_PRIVATE))
continue;
if (EBIT_TEST(e->flags, ENTRY_SPECIAL))
continue;
dirn = storeDirNumber(e->swap_file_number);
sd = &Config.cacheSwap.swapDirs[dirn];
if (NULL == sd->log.clean.write)
continue;
sd->log.clean.write(e, sd);
if ((++n & 0xFFFF) == 0) {
getCurrentTime();
debug(20, 1) (" %7d entries written so far.\n", n);
}
}
/* flush */
for (dirn = 0; dirn < N; dirn++) {
sd = &Config.cacheSwap.swapDirs[dirn];
if (NULL == sd->log.clean.write)
continue;
sd->log.clean.write(NULL, sd);
}
if (reopen)
storeDirOpenSwapLogs();
getCurrentTime();
dt = tvSubDsec(start, current_time);
debug(20, 1) (" Finished. Wrote %d entries.\n", n);
debug(20, 1) (" Took %3.1f seconds (%6.1f entries/sec).\n",
dt, (double) n / (dt > 0.0 ? dt : 1.0));
return n;
}
