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make sure we don't generate an heapexpansion in the middle of a write.

This commit is contained in:
Vitor Santos Costa 2009-05-21 01:04:13 -05:00
parent a58e3d812d
commit 3a3220d1a1
1 changed files with 17 additions and 6 deletions
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23
C/write.c
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@ -539,16 +539,21 @@ writeTerm(Term t, int p, int depth, int rinfixarg, struct write_globs *wglb)
char *s;
s = (char *) Yap_PreAllocCodeSpace();
while (s+3+mpz_sizeinbase(big, 10) >= (char *)AuxSp) {
if (!Yap_ExpandPreAllocCodeSpace(mpz_sizeinbase(big, 10),NULL)) {
#if USE_SYSTEM_MALLOC
/* may require stack expansion */
if (!Yap_ExpandPreAllocCodeSpace(3+mpz_sizeinbase(big, 10),NULL)) {
s = NULL;
break;
}
s = (char *) Yap_PreAllocCodeSpace();
#else
s = NULL;
#endif
}
if (!s) {
s = (char *)TR;
while (s+3+mpz_sizeinbase(big, 10) >= Yap_TrailTop) {
if (!Yap_growtrail(mpz_sizeinbase(big, 10)/sizeof(CELL), FALSE)) {
if (!Yap_growtrail((3+mpz_sizeinbase(big, 10))/sizeof(CELL), FALSE)) {
s = NULL;
break;
}
@ -562,8 +567,6 @@ writeTerm(Term t, int p, int depth, int rinfixarg, struct write_globs *wglb)
s = NULL;
}
}
if (!s)
return;
if (mpz_sgn(big) < 0) {
if (lastw == symbol)
wrputc(' ', wglb->writewch);
@ -571,8 +574,16 @@ writeTerm(Term t, int p, int depth, int rinfixarg, struct write_globs *wglb)
if (lastw == alphanum)
wrputc(' ', wglb->writewch);
}
mpz_get_str(s, 10, big);
wrputs(s,wglb->writewch);
if (!s) {
s = mpz_get_str(NULL, 10, big);
if (!s)
return;
wrputs(s,wglb->writewch);
free(s);
} else {
mpz_get_str(s, 10, big);
wrputs(s,wglb->writewch);
}
}
#else
{