greg/stasis-aries-wal
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Regions are 1 offset;iterator was totally broken.

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This commit is contained in:
Sears Russell 2008-02-20 22:56:52 +00:00
parent 17d4f95d03
commit 043b9a7a01
1 changed files with 6 additions and 5 deletions
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11
src/stasis/operations/regions.c
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@ -105,7 +105,7 @@ int TregionReadBoundaryTag(int xid, pageid_t page, boundary_tag* tag) {
pthread_mutex_lock(&region_mutex);
assert(0 == holding_mutex);
holding_mutex = pthread_self();
int ret = readBoundaryTag(xid,page,tag);
int ret = readBoundaryTag(xid,page-1,tag);
holding_mutex = 0;
pthread_mutex_unlock(&region_mutex);
return ret;
@ -173,16 +173,17 @@ int TregionNextBoundaryTag(int xid, pageid_t* pid, boundary_tag * tag, int type)
holding_mutex = pthread_self();
int ret = readBoundaryTag(xid, *pid, tag);
int ret = readBoundaryTag(xid, *pid-1, tag);
if(ret) {
while(1) {
if(tag->size == UINT32_MAX) {
ret = 0;
break;
}
*pid += tag->size;
ret = readBoundaryTag(xid,*pid, tag);
assert(ret); // detected boundary tag corruption.
*pid += tag->size+1;
int succ = readBoundaryTag(xid,*pid-1, tag);
assert(succ); // detect missing boundary tags
DEBUG("tag status = %d\n",tag->status);
if(tag->status == REGION_ZONED && ((!type) || (tag->allocation_manager == type))) {
break;
}