77 lines
3.2 KiB
Diff
77 lines
3.2 KiB
Diff
Fix garbage collection for Guile versions >= 2.0.12. This issue showed
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up when running the tests on i686-linux.
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Taken from this upstream commit:
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https://github.com/swig/swig/commit/38f2ab0c30e369e63bbd0a6152108488d0de68e1
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diff --git a/Lib/guile/guile_scm_run.swg b/Lib/guile/guile_scm_run.swg
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index 274f197158..0d04cb7c62 100644
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--- a/Lib/guile/guile_scm_run.swg
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+++ b/Lib/guile/guile_scm_run.swg
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@@ -99,6 +99,7 @@ SWIG_Guile_scm2newstr(SCM str, size_t *len) {
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static int swig_initialized = 0;
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static scm_t_bits swig_tag = 0;
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static scm_t_bits swig_collectable_tag = 0;
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+static scm_t_bits swig_finalized_tag = 0;
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static scm_t_bits swig_destroyed_tag = 0;
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static scm_t_bits swig_member_function_tag = 0;
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static SCM swig_make_func = SCM_EOL;
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@@ -163,7 +164,19 @@ SWIG_Guile_PointerType(SCM object)
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}
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else scm_wrong_type_arg("SWIG-Guile-PointerType", 1, object);
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}
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-
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+
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+SWIGINTERN int
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+SWIG_Guile_IsValidSmob(SCM smob)
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+{
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+ /* We do not accept smobs representing destroyed pointers, but we have to
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+ allow finalized smobs because Guile >= 2.0.12 sets all smob instances
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+ to the 'finalized' type before calling their 'free' function. This change
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+ was introduced to Guile in commit 8dff3af087c6eaa83ae0d72aa8b22aef5c65d65d */
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+ return SCM_SMOB_PREDICATE(swig_tag, smob)
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+ || SCM_SMOB_PREDICATE(swig_collectable_tag, smob)
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+ || SCM_SMOB_PREDICATE(swig_finalized_tag, smob);
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+}
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+
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SWIGINTERN int
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SWIG_Guile_ConvertPtr(SCM s, void **result, swig_type_info *type, int flags)
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{
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@@ -179,8 +192,7 @@ SWIG_Guile_ConvertPtr(SCM s, void **result, swig_type_info *type, int flags)
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*result = SCM_POINTER_VALUE(s);
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return SWIG_OK;
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#endif /* if SCM_MAJOR_VERSION >= 2 */
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- } else if (SCM_SMOB_PREDICATE(swig_tag, smob) || SCM_SMOB_PREDICATE(swig_collectable_tag, smob)) {
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- /* we do not accept smobs representing destroyed pointers */
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+ } else if (SWIG_Guile_IsValidSmob(smob)) {
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from = (swig_type_info *) SCM_CELL_WORD_2(smob);
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if (!from) return SWIG_ERROR;
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if (type) {
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@@ -239,7 +251,7 @@ SWIG_Guile_MarkPointerNoncollectable(SCM s)
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{
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SCM smob = SWIG_Guile_GetSmob(s);
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if (!SCM_NULLP(smob)) {
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- if (SCM_SMOB_PREDICATE(swig_tag, smob) || SCM_SMOB_PREDICATE(swig_collectable_tag, smob)) {
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+ if (SWIG_Guile_IsValidSmob(smob)) {
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SCM_SET_CELL_TYPE(smob, swig_tag);
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}
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else scm_wrong_type_arg(NULL, 0, s);
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@@ -252,7 +264,7 @@ SWIG_Guile_MarkPointerDestroyed(SCM s)
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{
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SCM smob = SWIG_Guile_GetSmob(s);
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if (!SCM_NULLP(smob)) {
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- if (SCM_SMOB_PREDICATE(swig_tag, smob) || SCM_SMOB_PREDICATE(swig_collectable_tag, smob)) {
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+ if (SWIG_Guile_IsValidSmob(smob)) {
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SCM_SET_CELL_TYPE(smob, swig_destroyed_tag);
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}
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else scm_wrong_type_arg(NULL, 0, s);
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@@ -419,6 +431,8 @@ SWIG_Guile_Init ()
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scm_set_smob_print(swig_collectable_tag, print_collectable_swig);
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scm_set_smob_equalp(swig_collectable_tag, equalp_swig);
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scm_set_smob_free(swig_collectable_tag, free_swig);
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+ /* For Guile >= 2.0.12. See libguile/smob.c:clear_smobnum */
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+ swig_finalized_tag = swig_collectable_tag & ~0xff00;
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}
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if (ensure_smob_tag(swig_module, &swig_destroyed_tag,
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"destroyed-swig-pointer", "destroyed-swig-pointer-tag")) {
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