diff options
Diffstat (limited to 'src/backend/utils')
| -rw-r--r-- | src/backend/utils/time/combocid.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/src/backend/utils/time/combocid.c b/src/backend/utils/time/combocid.c index 6d67d38f252..44fe2f3dbe1 100644 --- a/src/backend/utils/time/combocid.c +++ b/src/backend/utils/time/combocid.c @@ -14,8 +14,8 @@ * real cmin and cmax using a backend-private array, which is managed by * this module. * - * To allow reusing existing combo cids, we also keep a hash table that - * maps cmin,cmax pairs to combo cids. This keeps the data structure size + * To allow reusing existing combo CIDs, we also keep a hash table that + * maps cmin,cmax pairs to combo CIDs. This keeps the data structure size * reasonable in most cases, since the number of unique pairs used by any * one transaction is likely to be small. * @@ -49,7 +49,7 @@ #include "utils/hsearch.h" #include "utils/memutils.h" -/* Hash table to lookup combo cids by cmin and cmax */ +/* Hash table to lookup combo CIDs by cmin and cmax */ static HTAB *comboHash = NULL; /* Key and entry structures for the hash table */ @@ -75,7 +75,7 @@ typedef ComboCidEntryData *ComboCidEntry; /* * An array of cmin,cmax pairs, indexed by combo command id. - * To convert a combo cid to cmin and cmax, you do a simple array lookup. + * To convert a combo CID to cmin and cmax, you do a simple array lookup. */ static ComboCidKey comboCids = NULL; static int usedComboCids = 0; /* number of elements in comboCids */ @@ -259,11 +259,11 @@ GetComboCommandId(CommandId cmin, CommandId cmax) if (found) { - /* Reuse an existing combo cid */ + /* Reuse an existing combo CID */ return entry->combocid; } - /* We have to create a new combo cid; we already made room in the array */ + /* We have to create a new combo CID; we already made room in the array */ combocid = usedComboCids; comboCids[combocid].cmin = cmin; @@ -290,7 +290,7 @@ GetRealCmax(CommandId combocid) } /* - * Estimate the amount of space required to serialize the current ComboCID + * Estimate the amount of space required to serialize the current combo CID * state. */ Size @@ -301,14 +301,14 @@ EstimateComboCIDStateSpace(void) /* Add space required for saving usedComboCids */ size = sizeof(int); - /* Add space required for saving the combocids key */ + /* Add space required for saving ComboCidKeyData */ size = add_size(size, mul_size(sizeof(ComboCidKeyData), usedComboCids)); return size; } /* - * Serialize the ComboCID state into the memory, beginning at start_address. + * Serialize the combo CID state into the memory, beginning at start_address. * maxsize should be at least as large as the value returned by * EstimateComboCIDStateSpace. */ @@ -317,7 +317,7 @@ SerializeComboCIDState(Size maxsize, char *start_address) { char *endptr; - /* First, we store the number of currently-existing ComboCIDs. */ + /* First, we store the number of currently-existing combo CIDs. */ *(int *) start_address = usedComboCids; /* If maxsize is too small, throw an error. */ @@ -333,9 +333,9 @@ SerializeComboCIDState(Size maxsize, char *start_address) } /* - * Read the ComboCID state at the specified address and initialize this - * backend with the same ComboCIDs. This is only valid in a backend that - * currently has no ComboCIDs (and only makes sense if the transaction state + * Read the combo CID state at the specified address and initialize this + * backend with the same combo CIDs. This is only valid in a backend that + * currently has no combo CIDs (and only makes sense if the transaction state * is serialized and restored as well). */ void @@ -348,11 +348,11 @@ RestoreComboCIDState(char *comboCIDstate) Assert(!comboCids && !comboHash); - /* First, we retrieve the number of ComboCIDs that were serialized. */ + /* First, we retrieve the number of combo CIDs that were serialized. */ num_elements = *(int *) comboCIDstate; keydata = (ComboCidKeyData *) (comboCIDstate + sizeof(int)); - /* Use GetComboCommandId to restore each ComboCID. */ + /* Use GetComboCommandId to restore each combo CID. */ for (i = 0; i < num_elements; i++) { cid = GetComboCommandId(keydata[i].cmin, keydata[i].cmax); |