From: Florian Festi <ffesti@redhat.com>
Date: Wed, 5 May 2010 10:49:16 +0000 (+0200)
Subject: Convert tsmem->removedPackages to a hash table and remove rpmdbPruneIterator from... 
X-Git-Tag: rpm-4.9.0-beta1~624
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=70e9b035ff33d649adb32028258f9676fc12d126;p=platform%2Fupstream%2Frpm.git

Convert tsmem->removedPackages to a hash table and remove rpmdbPruneIterator from the API
---

diff --git a/lib/depends.c b/lib/depends.c
index b069268..1cfc610 100644
--- a/lib/depends.c
+++ b/lib/depends.c
@@ -36,6 +36,16 @@ static rpmds rpmlibP = NULL;
 #define HTDATATYPE int
 #include "lib/rpmhash.H"
 #include "lib/rpmhash.C"
+#undef HASHTYPE
+#undef HTKEYTYPE
+#undef HTDATATYPE
+
+#define HASHTYPE intHash
+#define HTKEYTYPE unsigned int
+#include "rpmhash.C"
+#undef HASHTYPE
+#undef HASHKEYTYPE
+
 
 /**
  * Compare removed package instances (qsort/bsearch).
@@ -67,26 +77,11 @@ static int removePackage(tsMembers tsmem, Header h, rpmte depends)
     if (dboffset == 0) return 1;
 
     /* Filter out duplicate erasures. */
-    if (tsmem->numRemovedPackages > 0 && tsmem->removedPackages != NULL) {
-	if (bsearch(&dboffset,
-		    tsmem->removedPackages, tsmem->numRemovedPackages,
-		    sizeof(*tsmem->removedPackages), intcmp) != NULL)
-	    return 0;
-    }
-
-    if (tsmem->numRemovedPackages == tsmem->allocedRemovedPackages) {
-	tsmem->allocedRemovedPackages += tsmem->delta;
-	tsmem->removedPackages = xrealloc(tsmem->removedPackages,
-		sizeof(tsmem->removedPackages) * tsmem->allocedRemovedPackages);
+    if (intHashHasEntry(tsmem->removedPackages, dboffset)) {
+        return 0;
     }
 
-    if (tsmem->removedPackages != NULL) {	/* XXX can't happen. */
-	tsmem->removedPackages[tsmem->numRemovedPackages] = dboffset;
-	tsmem->numRemovedPackages++;
-	if (tsmem->numRemovedPackages > 1)
-	    qsort(tsmem->removedPackages, tsmem->numRemovedPackages,
-			sizeof(*tsmem->removedPackages), intcmp);
-    }
+    intHashAddEntry(tsmem->removedPackages, dboffset);
 
     if (tsmem->orderCount >= tsmem->orderAlloced) {
 	tsmem->orderAlloced += (tsmem->orderCount - tsmem->orderAlloced) + tsmem->delta;
@@ -107,7 +102,7 @@ static rpmdbMatchIterator rpmtsPrunedIterator(rpmts ts, rpmTag tag, const char *
 {
     rpmdbMatchIterator mi = rpmtsInitIterator(ts, tag, key, 0);
     tsMembers tsmem = rpmtsMembers(ts);
-    rpmdbPruneIterator(mi, tsmem->removedPackages, tsmem->numRemovedPackages,1);
+    rpmdbPruneIterator(mi, tsmem->removedPackages);
     return mi;
 }
 
diff --git a/lib/rpmdb.c b/lib/rpmdb.c
index 43f86e9..194e47a 100644
--- a/lib/rpmdb.c
+++ b/lib/rpmdb.c
@@ -1916,14 +1916,29 @@ static int rpmdbGrowIterator(rpmdbMatchIterator mi)
     return rc;
 }
 
-int rpmdbPruneIterator(rpmdbMatchIterator mi, int * hdrNums,
-	int nHdrNums, int sorted)
+int rpmdbPruneIterator(rpmdbMatchIterator mi, intHash hdrNums)
 {
-    if (mi == NULL || hdrNums == NULL || nHdrNums <= 0)
+    if (mi == NULL || hdrNums == NULL || intHashNumKeys(hdrNums) <= 0)
 	return 1;
 
-    if (mi->mi_set)
-	(void) dbiPruneSet(mi->mi_set, hdrNums, nHdrNums, sizeof(*hdrNums), sorted);
+    if (!mi->mi_set)
+        return 0;
+
+    unsigned int from;
+    unsigned int to = 0;
+    unsigned int num = mi->mi_set->count;
+
+    assert(mi->mi_set->count > 0);
+
+    for (from = 0; from < num; from++) {
+	if (intHashHasEntry(hdrNums, mi->mi_set->recs[from].hdrNum)) {
+	    mi->mi_set->count--;
+	    continue;
+	}
+	if (from != to)
+	    mi->mi_set->recs[to] = mi->mi_set->recs[from]; /* structure assignment */
+	to++;
+    }
     return 0;
 }
 
diff --git a/lib/rpmdb.h b/lib/rpmdb.h
index dc21184..a4b61bc 100644
--- a/lib/rpmdb.h
+++ b/lib/rpmdb.h
@@ -144,18 +144,6 @@ int rpmdbAppendIterator(rpmdbMatchIterator mi,
 		const int * hdrNums, int nHdrNums);
 
 /** \ingroup rpmdb
- * Remove items from set of package instances to iterate.
- * @note Sorted hdrNums are always passed in rpmlib.
- * @param mi		rpm database iterator
- * @param hdrNums	array of package instances
- * @param nHdrNums	number of elements in array
- * @param sorted	is the array sorted? (array will be sorted on return)
- * @return		0 on success, 1 on failure (bad args)
- */
-int rpmdbPruneIterator(rpmdbMatchIterator mi,
-		int * hdrNums, int nHdrNums, int sorted);
-
-/** \ingroup rpmdb
  * Add pattern to iterator selector.
  * @param mi		rpm database iterator
  * @param tag		rpm tag
diff --git a/lib/rpmdb_internal.h b/lib/rpmdb_internal.h
index 1f7be34..c738d68 100644
--- a/lib/rpmdb_internal.h
+++ b/lib/rpmdb_internal.h
@@ -56,6 +56,25 @@ int rpmdbExtendIterator(rpmdbMatchIterator mi,
  */
 void rpmdbSortIterator(rpmdbMatchIterator mi);
 
+/* avoid importing rpmts_internal.h */
+#undef HASHTYPE
+#undef HTKEYTYPE
+#undef HTDATATYPE
+#define HASHTYPE intHash
+#define HTKEYTYPE unsigned int
+#include "rpmhash.H"
+#undef HASHTYPE
+#undef HTKEYTYPE
+
+/** \ingroup rpmdb
+ * Remove items from set of package instances to iterate.
+ * @note Sorted hdrNums are always passed in rpmlib.
+ * @param mi		rpm database iterator
+ * @param hdrNums	hash of package instances
+ * @return		0 on success, 1 on failure (bad args)
+ */
+int rpmdbPruneIterator(rpmdbMatchIterator mi, intHash hdrNums);
+
 #ifndef __APPLE__
 /**
  *  * Mergesort, same arguments as qsort(2).
diff --git a/lib/rpmts.c b/lib/rpmts.c
index 433160d..1688889 100644
--- a/lib/rpmts.c
+++ b/lib/rpmts.c
@@ -515,6 +515,18 @@ void rpmtsClean(rpmts ts)
     rpmtsCleanProblems(ts);
 }
 
+/* hash comparison function */
+static int uintCmp(unsigned int a, unsigned int b)
+{
+    return (a != b);
+}
+
+/* "hash"function*/ 
+static unsigned int uintId(unsigned int a)
+{
+    return a;
+}
+
 void rpmtsEmpty(rpmts ts)
 {
     tsMembers tsmem = rpmtsMembers(ts);
@@ -528,7 +540,7 @@ void rpmtsEmpty(rpmts ts)
     }
 
     tsmem->orderCount = 0;
-    tsmem->numRemovedPackages = 0;
+    intHashEmpty(tsmem->removedPackages);
     return;
 }
 
@@ -577,7 +589,7 @@ rpmts rpmtsFree(rpmts ts)
 
     (void) rpmtsCloseDB(ts);
 
-    tsmem->removedPackages = _free(tsmem->removedPackages);
+    tsmem->removedPackages = intHashFree(tsmem->removedPackages);
     tsmem->order = _free(tsmem->order);
     ts->members = _free(ts->members);
 
@@ -906,13 +918,9 @@ rpmts rpmtsCreate(void)
     }
 
     tsmem = xcalloc(1, sizeof(*ts->members));
-    tsmem->delta = 5;
     tsmem->numAddedPackages = 0;
     tsmem->addedPackages = NULL;
-    tsmem->numRemovedPackages = 0;
-    tsmem->allocedRemovedPackages = tsmem->delta;
-    tsmem->removedPackages = xcalloc(tsmem->allocedRemovedPackages,
-				     sizeof(*tsmem->removedPackages));
+    tsmem->removedPackages = intHashCreate(128, uintId, uintCmp, NULL);
     tsmem->orderAlloced = 0;
     tsmem->orderCount = 0;
     tsmem->order = NULL;
diff --git a/lib/rpmts_internal.h b/lib/rpmts_internal.h
index 551cdd7..f70401a 100644
--- a/lib/rpmts_internal.h
+++ b/lib/rpmts_internal.h
@@ -12,9 +12,7 @@ typedef struct diskspaceInfo_s * rpmDiskSpaceInfo;
 
 /* Transaction set elements information */
 typedef struct tsMembers_s {
-    int * removedPackages;	/*!< Set of packages being removed. */
-    int numRemovedPackages;	/*!< No. removed package instances. */
-    int allocedRemovedPackages;	/*!< Size of removed packages array. */
+    intHash removedPackages;	/*!< Set of packages being removed. */
 
     rpmal addedPackages;	/*!< Set of packages being installed. */
     int numAddedPackages;	/*!< No. added package instances. */
diff --git a/lib/transaction.c b/lib/transaction.c
index 93903fb..e9e1f0c 100644
--- a/lib/transaction.c
+++ b/lib/transaction.c
@@ -954,14 +954,7 @@ void checkInstalledFiles(rpmts ts, uint64_t fileCount, rpmFpHash ht, fingerPrint
 
 	/* Is this package being removed? */
 	installedPkg = rpmdbGetIteratorOffset(mi);
-	beingRemoved = 0;
-	if (tsmem->removedPackages != NULL)
-	for (j = 0; j < tsmem->numRemovedPackages; j++) {
-	    if (tsmem->removedPackages[j] != installedPkg)
-	        continue;
-	    beingRemoved = 1;
-	    break;
-	}
+	beingRemoved = intHashHasEntry(tsmem->removedPackages, installedPkg);
 
 	h = headerLink(h);
 	headerGet(h, RPMTAG_BASENAMES, &bnames, hgflags);