#endif
#ifndef I_MULTIPLICITY
-# if defined(MULTIPLICITY) || defined(PERL_IMPLICIT_CONTEXT)
+# if defined(MULTIPLICITY)
# define I_MULTIPLICITY 1
# else
# define I_MULTIPLICITY 0
# endif
#endif
+#if I_MULTIPLICITY
+# ifndef PERL_IMPLICIT_CONTEXT
+# error MULTIPLICITY builds must set PERL_IMPLICIT_CONTEXT
+# endif
+#endif
#if I_MULTIPLICITY && !defined(tTHX)
# define tTHX PerlInterpreter*
#endif
/* --- Helpers ------------------------------------------------------------- */
+/* ... Check if the module is loaded ....................................... */
+
+#if I_THREADSAFE
+
+#define PTABLE_NAME ptable_loaded
+#define PTABLE_VAL_FREE(V) NOOP
+
+#include "ptable.h"
+
+#define ptable_loaded_store(T, K, V) ptable_loaded_store(aPTBLMS_ (T), (K), (V))
+#define ptable_loaded_delete(T, K) ptable_loaded_delete(aPTBLMS_ (T), (K))
+#define ptable_loaded_free(T) ptable_loaded_free(aPTBLMS_ (T))
+
+#define indirect_loaded()
+
+static ptable *indirect_loaded_cxts = NULL;
+static U32 indirect_loaded_cxts_refcount = 0;
+
+/* We must use preexistent global mutexes or we will never be able to destroy
+ * them. */
+#if I_HAS_PERL(5, 9, 3)
+# define I_LOADED_LOCK MUTEX_LOCK(&PL_my_ctx_mutex)
+# define I_LOADED_UNLOCK MUTEX_UNLOCK(&PL_my_ctx_mutex)
+#else
+# define I_LOADED_LOCK OP_REFCNT_LOCK
+# define I_LOADED_UNLOCK OP_REFCNT_UNLOCK
+#endif
+
+static int indirect_is_loaded(pTHX_ void *cxt) {
+#define indirect_is_loaded(C) indirect_is_loaded(aTHX_ (C))
+ int res = 0;
+
+ I_LOADED_LOCK;
+ if (indirect_loaded_cxts && ptable_fetch(indirect_loaded_cxts, cxt))
+ res = 1;
+ I_LOADED_UNLOCK;
+
+ return res;
+}
+
+static void indirect_set_loaded(pTHX_ void *cxt) {
+#define indirect_set_loaded(C) indirect_set_loaded(aTHX_ (C))
+ I_LOADED_LOCK;
+ if (!indirect_loaded_cxts) {
+ indirect_loaded_cxts = ptable_new();
+ indirect_loaded_cxts_refcount = 0;
+ }
+ ++indirect_loaded_cxts_refcount;
+ ptable_loaded_store(indirect_loaded_cxts, cxt, cxt);
+ I_LOADED_UNLOCK;
+}
+
+static void indirect_clear_loaded(pTHX_ void *cxt) {
+#define indirect_clear_loaded(C) indirect_clear_loaded(aTHX_ (C))
+ I_LOADED_LOCK;
+ if (indirect_loaded_cxts_refcount <= 1) {
+ ptable_loaded_free(indirect_loaded_cxts);
+ indirect_loaded_cxts = NULL;
+ indirect_loaded_cxts_refcount = 0;
+ } else {
+ --indirect_loaded_cxts_refcount;
+ ptable_loaded_delete(indirect_loaded_cxts, cxt);
+ }
+ I_LOADED_UNLOCK;
+}
+
+#else
+
+#define indirect_is_loaded(C) (1)
+#define indirect_set_loaded(C) NOOP
+#define indirect_clear_loaded(C) NOOP
+
+#endif
+
/* ... Thread-safe hints ................................................... */
#if I_WORKAROUND_REQUIRE_PROPAGATION
static void indirect_thread_cleanup(pTHX_ void *ud) {
dMY_CXT;
+ indirect_clear_loaded(&MY_CXT);
+
SvREFCNT_dec(MY_CXT.global_code);
MY_CXT.global_code = NULL;
+
ptable_free(MY_CXT.map);
MY_CXT.map = NULL;
+
ptable_hints_free(MY_CXT.tbl);
MY_CXT.tbl = NULL;
}
return I_HINT_CODE(h);
}
-static U32 indirect_hash = 0;
+static VOL U32 indirect_hash = 0;
static SV *indirect_hint(pTHX) {
#define indirect_hint() indirect_hint(aTHX)
}
#endif
- if (hint && SvIOK(hint))
+ if (hint && SvIOK(hint)) {
return indirect_detag(hint);
- else {
+ } else {
dMY_CXT;
- return MY_CXT.global_code;
+ if (indirect_is_loaded(&MY_CXT))
+ return MY_CXT.global_code;
+ else
+ return NULL;
}
}
#define indirect_map_delete(O) indirect_map_delete(aTHX_ (O))
dMY_CXT;
- if (MY_CXT.map)
+ if (indirect_is_loaded(&MY_CXT) && MY_CXT.map)
ptable_delete(MY_CXT.map, o);
}
return o;
}
-static U32 indirect_initialized = 0;
+/* --- Global setup/teardown ------------------------------------------------ */
+
+static VOL U32 indirect_initialized = 0;
-static void indirect_teardown(pTHX_ void *root) {
+static void indirect_global_teardown(pTHX_ void *root) {
if (!indirect_initialized)
return;
return;
#endif
- {
- dMY_CXT;
- ptable_free(MY_CXT.map);
- MY_CXT.map = NULL;
-#if I_THREADSAFE
- ptable_hints_free(MY_CXT.tbl);
- MY_CXT.tbl = NULL;
-#endif
- }
-
indirect_ck_restore(OP_CONST, &indirect_old_ck_const);
indirect_ck_restore(OP_RV2SV, &indirect_old_ck_rv2sv);
indirect_ck_restore(OP_PADANY, &indirect_old_ck_padany);
indirect_ck_restore(OP_ENTERSUB, &indirect_old_ck_entersub);
indirect_initialized = 0;
+
+ return;
}
-static void indirect_setup(pTHX) {
-#define indirect_setup() indirect_setup(aTHX)
+static void indirect_global_setup(pTHX) {
+#define indirect_global_setup() indirect_global_setup(aTHX)
+ HV *stash;
+
if (indirect_initialized)
return;
- {
- MY_CXT_INIT;
-#if I_THREADSAFE
- MY_CXT.tbl = ptable_new();
- MY_CXT.owner = aTHX;
-#endif
- MY_CXT.map = ptable_new();
- MY_CXT.global_code = NULL;
- }
+ PERL_HASH(indirect_hash, __PACKAGE__, __PACKAGE_LEN__);
+
+ stash = gv_stashpvn(__PACKAGE__, __PACKAGE_LEN__, 1);
+ newCONSTSUB(stash, "I_THREADSAFE", newSVuv(I_THREADSAFE));
+ newCONSTSUB(stash, "I_FORKSAFE", newSVuv(I_FORKSAFE));
indirect_ck_replace(OP_CONST, indirect_ck_const, &indirect_old_ck_const);
indirect_ck_replace(OP_RV2SV, indirect_ck_rv2sv, &indirect_old_ck_rv2sv);
&indirect_old_ck_entersub);
#if I_MULTIPLICITY
- call_atexit(indirect_teardown, aTHX);
+ call_atexit(indirect_global_teardown, aTHX);
#else
- call_atexit(indirect_teardown, NULL);
+ call_atexit(indirect_global_teardown, NULL);
#endif
indirect_initialized = 1;
+
+ return;
+}
+
+/* --- Interpreter setup/teardown ------------------------------------------ */
+
+static void indirect_local_teardown(pTHX_ void *param) {
+ dMY_CXT;
+
+ indirect_clear_loaded(&MY_CXT);
+
+ ptable_free(MY_CXT.map);
+ MY_CXT.map = NULL;
+
+#if I_THREADSAFE
+ ptable_hints_free(MY_CXT.tbl);
+ MY_CXT.tbl = NULL;
+#endif
+
+ return;
}
-static U32 indirect_booted = 0;
+static void indirect_local_setup(pTHX) {
+#define indirect_local_setup() indirect_local_setup(aTHX)
+ MY_CXT_INIT;
+
+#if I_THREADSAFE
+ MY_CXT.tbl = ptable_new();
+ MY_CXT.owner = aTHX;
+#endif
+
+ MY_CXT.map = ptable_new();
+ MY_CXT.global_code = NULL;
+
+ indirect_set_loaded(&MY_CXT);
+
+ call_atexit(indirect_local_teardown, NULL);
+
+ return;
+}
/* --- XS ------------------------------------------------------------------ */
BOOT:
{
- if (!indirect_booted++) {
- HV *stash;
-
- PERL_HASH(indirect_hash, __PACKAGE__, __PACKAGE_LEN__);
-
- stash = gv_stashpvn(__PACKAGE__, __PACKAGE_LEN__, 1);
- newCONSTSUB(stash, "I_THREADSAFE", newSVuv(I_THREADSAFE));
- newCONSTSUB(stash, "I_FORKSAFE", newSVuv(I_FORKSAFE));
- }
-
- indirect_setup();
+ indirect_global_setup();
+ indirect_local_setup();
}
#if I_THREADSAFE
MY_CXT.tbl = t;
MY_CXT.owner = aTHX;
MY_CXT.global_code = global_code_dup;
+ indirect_set_loaded(&MY_CXT);
}
gv = gv_fetchpv(__PACKAGE__ "::_THREAD_CLEANUP", 0, SVt_PVCV);
if (gv) {
projects / perl / modules / indirect.git / blobdiff