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ICU-1779 add debugging code to track Entry object usage

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X-SVN-Rev: 8155
This commit is contained in:
Alan Liu 2002-03-20 18:29:10 +00:00
parent b7682efdab
commit 1f73d4904a
1 changed files with 81 additions and 1 deletions
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82
icu4c/source/i18n/transreg.cpp
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@ -21,6 +21,17 @@
#include "unicode/uscript.h"
#include "charstr.h"
// Enable the following symbol to add debugging code that tracks the
// allocation, deletion, and use of Entry objects. BoundsChecker has
// reported dangling pointer errors with these objects, but I have
// been unable to confirm them. I suspect BoundsChecker is getting
// confused with pointers going into and coming out of a UHashtable,
// despite the hinting code that is designed to help it.
// #define DEBUG_MEM
#ifdef DEBUG_MEM
#include <stdio.h>
#endif
// UChar constants
static const UChar LOCALE_SEP = 95; // '_'
static const UChar ID_SEP = 0x002D; /*-*/
@ -225,6 +236,71 @@ ResourceBundle& Spec::getBundle() const {
return *res;
}
//----------------------------------------------------------------------
#ifdef DEBUG_MEM
// Vector of Entry pointers currently in use
static UVector* DEBUG_entries = NULL;
static void DEBUG_setup() {
if (DEBUG_entries == NULL) {
UErrorCode ec = U_ZERO_ERROR;
DEBUG_entries = new UVector(ec);
}
}
// Caller must call DEBUG_setup first. Return index of given Entry,
// if it is in use (not deleted yet), or -1 if not found.
static int DEBUG_findEntry(Entry* e) {
for (int i=0; i<DEBUG_entries->size(); ++i) {
if (e == (Entry*) DEBUG_entries->elementAt(i)) {
return i;
}
}
return -1;
}
// Track object creation
static void DEBUG_newEntry(Entry* e) {
DEBUG_setup();
if (DEBUG_findEntry(e) >= 0) {
// This should really never happen unless the heap is broken
printf("ERROR DEBUG_newEntry duplicate new pointer %08X\n", e);
return;
}
UErrorCode ec = U_ZERO_ERROR;
DEBUG_entries->addElement(e, ec);
}
// Track object deletion
static void DEBUG_delEntry(Entry* e) {
DEBUG_setup();
int i = DEBUG_findEntry(e);
if (i < 0) {
printf("ERROR DEBUG_delEntry possible double deletion %08X\n", e);
return;
}
DEBUG_entries->removeElementAt(i);
}
// Track object usage
static void DEBUG_useEntry(Entry* e) {
if (e == NULL) return;
DEBUG_setup();
int i = DEBUG_findEntry(e);
if (i < 0) {
printf("ERROR DEBUG_useEntry possible dangling pointer %08X\n", e);
}
}
#else
// If we're not debugging then make these macros into NOPs
#define DEBUG_newEntry(x)
#define DEBUG_delEntry(x)
#define DEBUG_useEntry(x)
#endif
//----------------------------------------------------------------------
// class Entry
//----------------------------------------------------------------------
@ -276,9 +352,11 @@ Entry::Entry() {
u.prototype = 0;
compoundFilter = NULL;
entryType = NONE;
DEBUG_newEntry(this);
}
Entry::~Entry() {
DEBUG_delEntry(this);
if (entryType == PROTOTYPE) {
delete u.prototype;
} else if (entryType == RBT_DATA || entryType == COMPOUND_RBT) {
@ -660,7 +738,9 @@ Entry* TransliteratorRegistry::findInDynamicStore(const Spec& src,
const UnicodeString& variant) {
UnicodeString ID;
STVtoID(src, trg, variant, ID);
return (Entry*) registry.get(ID);
Entry *e = (Entry*) registry.get(ID);
DEBUG_useEntry(e);
return e;
}
/**