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added GC_remove_roots()

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git-svn-id: svn://10.0.0.236/trunk@49404 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
beard%netscape.com
1999-09-30 05:15:24 +00:00
parent 6d22bd8146
commit 5b60a26d2b
1 changed files with 37 additions and 1 deletions
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38
mozilla/gc/boehm/mark_rts.c
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@@ -160,7 +160,6 @@ char * b; char * e;
ENABLE_SIGNALS();
}
/* Add [b,e) to the root set. Adding the same interval a second time */
/* is a moderately fast noop, and hence benign. We do not handle */
/* different but overlapping intervals efficiently. (We do handle */
@@ -250,6 +249,43 @@ GC_bool tmp;
n_root_sets++;
}
void GC_remove_roots(b, e)
char * b; char * e;
{
DCL_LOCK_STATE;
DISABLE_SIGNALS();
LOCK();
GC_remove_roots_inner(b, e);
UNLOCK();
ENABLE_SIGNALS();
}
void GC_remove_roots_inner(b, e)
char * b; char * e;
{
register int i;
for (i = 0; i < n_root_sets; ) {
if (GC_static_roots[i].r_start == (ptr_t)b && GC_static_roots[i].r_end == (ptr_t)e) {
GC_root_size -=
(GC_static_roots[i].r_end - GC_static_roots[i].r_start);
GC_static_roots[i].r_start = GC_static_roots[n_root_sets-1].r_start;
GC_static_roots[i].r_end = GC_static_roots[n_root_sets-1].r_end;
GC_static_roots[i].r_tmp = GC_static_roots[n_root_sets-1].r_tmp;
n_root_sets--;
} else {
i++;
}
}
# ifndef MSWIN32
/* rehash the root table. */
for (i = 0; i < RT_SIZE; i++) GC_root_index[i] = 0;
for (i = 0; i < n_root_sets; i++)
add_roots_to_index(GC_static_roots + i);
# endif
}
void GC_clear_roots GC_PROTO((void))
{
DCL_LOCK_STATE;