void
biffMove(const char *destKey, const char *err, const char *srcKey) {
unsigned int ii;
size_t len; // to match signature of strlen() on 64 bits
size_t max;
char me[] = "biffMove", *buf;
_biffEntry *dest, *src;
_biffInit();
_biffCheckKey(destKey);
_biffCheckKey(srcKey);
/* if srcKey and destKey are the same, this degenerates to biffAdd() */
if (!strcmp(destKey, srcKey)) {
biffAdd(srcKey, err);
return;
}
dest = _biffFindKey(destKey);
if (!dest) {
dest = _biffAddKey(destKey);
}
src = _biffFindKey(srcKey);
if (!src) {
fprintf(stderr, "%s: WARNING: key \"%s\" unknown\n", me, srcKey);
return;
}
max = 0;
for (ii=0; ii<src->num; ii++) {
len = strlen(src->err[ii]) + strlen(src->key) + 4;
max = AIR_MAX(max, len);
}
buf = (char*)calloc(max+1, sizeof(char));
if (!buf) {
fprintf(stderr, "%s: PANIC: can't allocate buffer\n", me);
exit(1);
}
for (ii=0; ii<src->num; ii++) {
sprintf(buf, "[%s] %s", srcKey, src->err[ii]);
/* printf("%s: HEY: moving \"%s\" to %s\n", me, buf, destKey); */
_biffAddErr(dest, buf);
}
if (err) {
_biffAddErr(dest, err);
}
biffDone(srcKey);
free(buf);
return;
}
/*
******** biffSetStr()
**
** for when you want to allocate the buffer for the biff string, this is
** how you get the error message itself
*/
void
biffSetStr(char *str, const char *key) {
unsigned int max, sum;
char me[] = "biffSetStr", *buf;
_biffEntry *ent;
if (!str) {
fprintf(stderr, "%s: ERROR: got NULL buffer \"%s\"\n", me, key);
return;
}
_biffInit();
_biffCheckKey(key);
ent = _biffFindKey(key);
if (!ent) {
/* error: not a key we remember seeing */
fprintf(stderr, "%s: WARNING: no information for key \"%s\"\n", me, key);
return;
}
_biffFindMaxAndSum(&max, &sum, ent);
buf = (char*)calloc(max, sizeof(char));
if (!buf) {
fprintf(stderr, "%s: PANIC: unable to allocate buffer\n", me);
exit(1);
}
_biffGetStr(str, buf, ent);
free(buf);
return;
}
/*
******** biffGet()
**
** creates a string which records all the errors at given key and
** returns it. Returns NULL in case of error. This function should
** be considered a glorified strdup(): it is the callers responsibility
** to free this string later
*/
char *
biffGet(const char *key) {
unsigned int max, sum;
char me[] = "biffGet", *ret, *buf;
_biffEntry *ent;
_biffInit();
_biffCheckKey(key);
ent = _biffFindKey(key);
if (!ent) {
/* error: not a key we remember seeing */
fprintf(stderr, "%s: WARNING: no information for key \"%s\"\n", me, key);
return NULL;
}
_biffFindMaxAndSum(&max, &sum, ent);
buf = (char*)calloc(max, sizeof(char));
ret = (char*)calloc(sum, sizeof(char));
if (!(buf && ret)) {
fprintf(stderr, "%s: PANIC: unable to allocate buffers\n", me);
exit(1);
}
_biffGetStr(ret, buf, ent);
free(buf);
return ret;
}
/*
******** biffCheck()
**
** sees how many messages there are for a given key
** returns 0 if the key doesn't exist.
*/
int
biffCheck(const char *key) {
_biffEntry *ent;
_biffInit();
_biffCheckKey(key);
ent = _biffFindKey(key);
if (!ent) {
return 0;
}
return ent->num;
}
/*
******** biffAdd()
**
** Adds string "err" at key "key", whether or not there are any
** existing messages there. Since biffSet() was killed
** Wed Apr 20 11:11:51 EDT 2005, this has become the main biff
** function.
*/
void
biffAdd(const char *key, const char *err) {
_biffEntry *ent;
_biffInit();
_biffCheckKey(key);
ent = _biffFindKey(key);
if (!ent) {
ent = _biffAddKey(key);
}
/* add the new message */
_biffAddErr(ent, err);
return;
}
/*
******** biffGetStrlen()
**
** for when you want to allocate the buffer for the biff string, this is
** how you learn its length
*/
int
biffGetStrlen(const char *key) {
unsigned int max, sum;
char me[] = "biffGetStrlen";
_biffEntry *ent;
_biffInit();
_biffCheckKey(key);
ent = _biffFindKey(key);
if (!ent) {
/* error: not a key we remember seeing */
fprintf(stderr, "%s: WARNING: no information for key \"%s\"\n", me, key);
return 0;
}
_biffFindMaxAndSum(&max, &sum, ent);
return sum;
}
/*
******** biffDone()
**
** frees everything associated with given key, and shrinks list of keys
*/
void
biffDone(const char *key) {
char me[]="biffDone";
int i, idx;
_biffEntry *ent;
_biffInit();
_biffCheckKey(key);
ent = _biffFindKey(key);
if (!ent) {
fprintf(stderr, "%s: WARNING: no information for key \"%s\"\n", me, key);
return;
}
idx = _biffIdx;
_biffNukeEntry(ent);
for (i=idx; i<(int)_biffNum-1; i++) {
_biffErr[i] = _biffErr[i+1];
}
airArrayLenIncr(_biffAA, -1);
return;
}