#include "perl.h"
#include "XSUB.h"
-#define __PACKAGE__ "Variable::Magic"
+/* --- XS helpers ---------------------------------------------------------- */
-#undef VOID2
-#ifdef __cplusplus
-# define VOID2(T, P) static_cast<T>(P)
-#else
-# define VOID2(T, P) (P)
-#endif
-
-#ifndef VMG_PERL_PATCHLEVEL
-# ifdef PERL_PATCHNUM
-# define VMG_PERL_PATCHLEVEL PERL_PATCHNUM
-# else
-# define VMG_PERL_PATCHLEVEL 0
-# endif
-#endif
-
-#define VMG_HAS_PERL(R, V, S) (PERL_REVISION > (R) || (PERL_REVISION == (R) && (PERL_VERSION > (V) || (PERL_VERSION == (V) && (PERL_SUBVERSION >= (S))))))
-
-#define VMG_HAS_PERL_BRANCH(R, V, S) (PERL_REVISION == (R) && PERL_VERSION == (V) && PERL_SUBVERSION >= (S))
-
-#define VMG_HAS_PERL_MAINT(R, V, S, P) (PERL_REVISION == (R) && PERL_VERSION == (V) && (VMG_PERL_PATCHLEVEL >= (P) || (!VMG_PERL_PATCHLEVEL && PERL_SUBVERSION >= (S))))
-
-/* --- Threads and multiplicity -------------------------------------------- */
-
-#ifndef NOOP
-# define NOOP
-#endif
-
-#ifndef dNOOP
-# define dNOOP
-#endif
-
-/* Safe unless stated otherwise in Makefile.PL */
-#ifndef VMG_FORKSAFE
-# define VMG_FORKSAFE 1
-#endif
-
-#ifndef VMG_MULTIPLICITY
-# if defined(MULTIPLICITY)
-# define VMG_MULTIPLICITY 1
-# else
-# define VMG_MULTIPLICITY 0
-# endif
-#endif
-#if VMG_MULTIPLICITY
-# ifndef PERL_IMPLICIT_CONTEXT
-# error MULTIPLICITY builds must set PERL_IMPLICIT_CONTEXT
-# endif
-#endif
-
-#if VMG_MULTIPLICITY && defined(USE_ITHREADS) && defined(dMY_CXT) && defined(MY_CXT) && defined(START_MY_CXT) && defined(MY_CXT_INIT) && (defined(MY_CXT_CLONE) || defined(dMY_CXT_SV))
-# ifndef VMG_THREADSAFE
-# define VMG_THREADSAFE 1
-# endif
-# ifndef MY_CXT_CLONE
-# define MY_CXT_CLONE \
- dMY_CXT_SV; \
- my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1)); \
- Copy(INT2PTR(my_cxt_t*, SvUV(my_cxt_sv)), my_cxtp, 1, my_cxt_t); \
- sv_setuv(my_cxt_sv, PTR2UV(my_cxtp))
-# endif
-#else
-# undef VMG_THREADSAFE
-# define VMG_THREADSAFE 0
-# undef dMY_CXT
-# define dMY_CXT dNOOP
-# undef MY_CXT
-# define MY_CXT vmg_globaldata
-# undef START_MY_CXT
-# define START_MY_CXT STATIC my_cxt_t MY_CXT;
-# undef MY_CXT_INIT
-# define MY_CXT_INIT NOOP
-# undef MY_CXT_CLONE
-# define MY_CXT_CLONE NOOP
-#endif
-
-#if VMG_THREADSAFE
-# define VMG_LOCK(M) MUTEX_LOCK(M)
-# define VMG_UNLOCK(M) MUTEX_UNLOCK(M)
-#else
-# define VMG_LOCK(M)
-# define VMG_UNLOCK(M)
-#endif
-
-/* --- Compatibility ------------------------------------------------------- */
+#define XSH_PACKAGE "Variable::Magic"
-#ifndef Newx
-# define Newx(v, n, c) New(0, v, n, c)
-#endif
-
-#ifndef SvMAGIC_set
-# define SvMAGIC_set(sv, val) (SvMAGIC(sv) = (val))
-#endif
-
-#ifndef SvRV_const
-# define SvRV_const(sv) SvRV((SV *) sv)
-#endif
-
-#ifndef SvREFCNT_inc_simple_void
-# define SvREFCNT_inc_simple_void(sv) ((void) SvREFCNT_inc(sv))
-#endif
-
-#ifndef mPUSHu
-# define mPUSHu(U) PUSHs(sv_2mortal(newSVuv(U)))
-#endif
-
-#ifndef PERL_MAGIC_ext
-# define PERL_MAGIC_ext '~'
-#endif
-
-#ifndef PERL_MAGIC_tied
-# define PERL_MAGIC_tied 'P'
-#endif
+#include "xsh/caps.h"
+#include "xsh/util.h"
-#ifndef MGf_LOCAL
-# define MGf_LOCAL 0
-#endif
-
-#ifndef IN_PERL_COMPILETIME
-# define IN_PERL_COMPILETIME (PL_curcop == &PL_compiling)
-#endif
-
-#ifndef OP_NAME
-# define OP_NAME(O) (PL_op_name[(O)->op_type])
-#endif
-
-#ifndef OP_CLASS
-# define OP_CLASS(O) (PL_opargs[(O)->op_type] & OA_CLASS_MASK)
-#endif
-
-#ifdef DEBUGGING
-# define VMG_ASSERT(C) assert(C)
-#else
-# define VMG_ASSERT(C)
-#endif
+/* ... Features ............................................................ */
/* uvar magic and Hash::Util::FieldHash were commited with 28419, but we only
* enable them on 5.10 */
-#if VMG_HAS_PERL(5, 10, 0)
+#if XSH_HAS_PERL(5, 10, 0)
# define VMG_UVAR 1
#else
# define VMG_UVAR 0
#endif
-#if VMG_HAS_PERL_MAINT(5, 11, 0, 32969) || VMG_HAS_PERL(5, 12, 0)
+#if XSH_HAS_PERL_MAINT(5, 11, 0, 32969) || XSH_HAS_PERL(5, 12, 0)
# define VMG_COMPAT_SCALAR_LENGTH_NOLEN 1
#else
# define VMG_COMPAT_SCALAR_LENGTH_NOLEN 0
#endif
-#if VMG_HAS_PERL(5, 17, 4)
+#if XSH_HAS_PERL(5, 17, 4)
# define VMG_COMPAT_SCALAR_NOLEN 1
#else
# define VMG_COMPAT_SCALAR_NOLEN 0
/* Applied to dev-5.9 as 25854, integrated to maint-5.8 as 28160, partially
* reverted to dev-5.11 as 9cdcb38b */
-#if VMG_HAS_PERL_MAINT(5, 8, 9, 28160) || VMG_HAS_PERL_MAINT(5, 9, 3, 25854) || VMG_HAS_PERL(5, 10, 0)
+#if XSH_HAS_PERL_MAINT(5, 8, 9, 28160) || XSH_HAS_PERL_MAINT(5, 9, 3, 25854) || XSH_HAS_PERL(5, 10, 0)
# ifndef VMG_COMPAT_ARRAY_PUSH_NOLEN
-# if VMG_HAS_PERL(5, 11, 0)
+# if XSH_HAS_PERL(5, 11, 0)
# define VMG_COMPAT_ARRAY_PUSH_NOLEN 0
# else
# define VMG_COMPAT_ARRAY_PUSH_NOLEN 1
#endif
/* Applied to dev-5.11 as 34908 */
-#if VMG_HAS_PERL_MAINT(5, 11, 0, 34908) || VMG_HAS_PERL(5, 12, 0)
+#if XSH_HAS_PERL_MAINT(5, 11, 0, 34908) || XSH_HAS_PERL(5, 12, 0)
# define VMG_COMPAT_ARRAY_UNSHIFT_NOLEN_VOID 1
#else
# define VMG_COMPAT_ARRAY_UNSHIFT_NOLEN_VOID 0
#endif
/* Applied to dev-5.9 as 31473 (see #43357), integrated to maint-5.8 as 32542 */
-#if VMG_HAS_PERL_MAINT(5, 8, 9, 32542) || VMG_HAS_PERL_MAINT(5, 9, 5, 31473) || VMG_HAS_PERL(5, 10, 0)
+#if XSH_HAS_PERL_MAINT(5, 8, 9, 32542) || XSH_HAS_PERL_MAINT(5, 9, 5, 31473) || XSH_HAS_PERL(5, 10, 0)
# define VMG_COMPAT_ARRAY_UNDEF_CLEAR 1
#else
# define VMG_COMPAT_ARRAY_UNDEF_CLEAR 0
#endif
-#if VMG_HAS_PERL(5, 11, 0)
+#if XSH_HAS_PERL(5, 11, 0)
# define VMG_COMPAT_HASH_DELETE_NOUVAR_VOID 1
#else
# define VMG_COMPAT_HASH_DELETE_NOUVAR_VOID 0
#endif
-#if VMG_HAS_PERL(5, 17, 0)
+#if XSH_HAS_PERL(5, 17, 0)
# define VMG_COMPAT_CODE_COPY_CLONE 1
#else
# define VMG_COMPAT_CODE_COPY_CLONE 0
#endif
-#if VMG_HAS_PERL(5, 13, 2)
+#if XSH_HAS_PERL(5, 13, 2)
# define VMG_COMPAT_GLOB_GET 1
#else
# define VMG_COMPAT_GLOB_GET 0
#endif
-#define VMG_PROPAGATE_ERRSV_NEEDS_TRAMPOLINE (VMG_HAS_PERL(5, 10, 0) && !VMG_HAS_PERL(5, 10, 1))
-
-/* NewOp() isn't public in perl 5.8.0. */
-#define VMG_RESET_RMG_NEEDS_TRAMPOLINE (VMG_UVAR && (VMG_THREADSAFE || !VMG_HAS_PERL(5, 8, 1)))
-
-/* ... Bug-free mg_magical ................................................. */
-
-/* See the discussion at http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2008-01/msg00036.html */
-
-#if VMG_HAS_PERL(5, 11, 3)
-
-#define vmg_mg_magical(S) mg_magical(S)
-
-#else
+/* ... Trampoline ops ...................................................... */
-static void vmg_mg_magical(SV *sv) {
- const MAGIC *mg;
+#define VMG_PROPAGATE_ERRSV_NEEDS_TRAMPOLINE (XSH_HAS_PERL(5, 10, 0) && !XSH_HAS_PERL(5, 10, 1))
- SvMAGICAL_off(sv);
- if ((mg = SvMAGIC(sv))) {
- do {
- const MGVTBL* const vtbl = mg->mg_virtual;
- if (vtbl) {
- if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP))
- SvGMAGICAL_on(sv);
- if (vtbl->svt_set)
- SvSMAGICAL_on(sv);
- if (vtbl->svt_clear)
- SvRMAGICAL_on(sv);
- }
- } while ((mg = mg->mg_moremagic));
- if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)))
- SvRMAGICAL_on(sv);
- }
-}
-
-#endif
-
-/* --- Trampoline ops ------------------------------------------------------ */
+/* NewOp() isn't public in perl 5.8.0. */
+#define VMG_RESET_RMG_NEEDS_TRAMPOLINE (VMG_UVAR && (XSH_THREADSAFE || !XSH_HAS_PERL(5, 8, 1)))
#define VMG_NEEDS_TRAMPOLINE VMG_PROPAGATE_ERRSV_NEEDS_TRAMPOLINE || VMG_RESET_RMG_NEEDS_TRAMPOLINE
#endif /* VMG_NEEDS_TRAMPOLINE */
-/* --- Cleaner version of sv_magicext() ------------------------------------ */
+/* --- Compatibility ------------------------------------------------------- */
+
+#ifndef Newx
+# define Newx(v, n, c) New(0, v, n, c)
+#endif
+
+#ifndef SvMAGIC_set
+# define SvMAGIC_set(sv, val) (SvMAGIC(sv) = (val))
+#endif
+
+#ifndef SvRV_const
+# define SvRV_const(sv) SvRV((SV *) sv)
+#endif
+
+#ifndef SvREFCNT_inc_simple_void
+# define SvREFCNT_inc_simple_void(sv) ((void) SvREFCNT_inc(sv))
+#endif
+
+#ifndef mPUSHu
+# define mPUSHu(U) PUSHs(sv_2mortal(newSVuv(U)))
+#endif
+
+#ifndef PERL_MAGIC_ext
+# define PERL_MAGIC_ext '~'
+#endif
+
+#ifndef PERL_MAGIC_tied
+# define PERL_MAGIC_tied 'P'
+#endif
+
+#ifndef MGf_LOCAL
+# define MGf_LOCAL 0
+#endif
+
+#ifndef IN_PERL_COMPILETIME
+# define IN_PERL_COMPILETIME (PL_curcop == &PL_compiling)
+#endif
+
+#ifndef OP_NAME
+# define OP_NAME(O) (PL_op_name[(O)->op_type])
+#endif
+
+#ifndef OP_CLASS
+# define OP_CLASS(O) (PL_opargs[(O)->op_type] & OA_CLASS_MASK)
+#endif
+
+/* ... Bug-free mg_magical ................................................. */
+
+/* See the discussion at http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2008-01/msg00036.html */
+
+#if XSH_HAS_PERL(5, 11, 3)
+
+#define vmg_mg_magical(S) mg_magical(S)
+
+#else
+
+static void vmg_mg_magical(SV *sv) {
+ const MAGIC *mg;
+
+ SvMAGICAL_off(sv);
+ if ((mg = SvMAGIC(sv))) {
+ do {
+ const MGVTBL* const vtbl = mg->mg_virtual;
+ if (vtbl) {
+ if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP))
+ SvGMAGICAL_on(sv);
+ if (vtbl->svt_set)
+ SvSMAGICAL_on(sv);
+ if (vtbl->svt_clear)
+ SvRMAGICAL_on(sv);
+ }
+ } while ((mg = mg->mg_moremagic));
+ if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)))
+ SvRMAGICAL_on(sv);
+ }
+}
+
+#endif
+
+/* ... Cleaner version of sv_magicext() .................................... */
static MAGIC *vmg_sv_magicext(pTHX_ SV *sv, SV *obj, const MGVTBL *vtbl, const void *ptr, I32 len) {
#define vmg_sv_magicext(S, O, V, P, L) vmg_sv_magicext(aTHX_ (S), (O), (V), (P), (L))
return mg;
}
-/* --- Safe version of call_sv() ------------------------------------------- */
+/* ... Safe version of call_sv() ........................................... */
static I32 vmg_call_sv(pTHX_ SV *sv, I32 flags, int (*cleanup)(pTHX_ void *), void *ud) {
#define vmg_call_sv(S, F, C, U) vmg_call_sv(aTHX_ (S), (F), (C), (U))
Perl_warn(aTHX_ "%s", SvPV_nolen(ERRSV));
SvCUR_set(ERRSV, 0);
}
-#if VMG_HAS_PERL(5, 10, 0) || defined(PL_parser)
+#if XSH_HAS_PERL(5, 10, 0) || defined(PL_parser)
if (PL_parser)
++PL_parser->error_count;
#elif defined(PL_error_count)
OPc_PVOP,
OPc_LOOP,
OPc_COP,
-#if VMG_HAS_PERL(5, 21, 5)
+#if XSH_HAS_PERL(5, 21, 5)
OPc_METHOP,
#endif
-#if VMG_HAS_PERL(5, 21, 7)
+#if XSH_HAS_PERL(5, 21, 7)
OPc_UNOP_AUX,
#endif
OPc_MAX
"B::PVOP",
"B::LOOP",
"B::COP",
-#if VMG_HAS_PERL(5, 21, 5)
+#if XSH_HAS_PERL(5, 21, 5)
"B::METHOP",
#endif
-#if VMG_HAS_PERL(5, 21, 7)
+#if XSH_HAS_PERL(5, 21, 7)
"B::UNOP_AUX",
#endif
NULL
#endif
if (o->op_type == 0) {
-#if VMG_HAS_PERL(5, 21, 7)
+#if XSH_HAS_PERL(5, 21, 7)
if (o->op_targ == OP_NEXTSTATE || o->op_targ == OP_DBSTATE)
return OPc_COP;
#endif
return OPc_PADOP;
case OA_PVOP_OR_SVOP:
return (
-#if VMG_HAS_PERL(5, 13, 7)
+#if XSH_HAS_PERL(5, 13, 7)
(o->op_type != OP_CUSTOM) &&
#endif
(o->op_private & (OPpTRANS_TO_UTF|OPpTRANS_FROM_UTF)))
-#if defined(USE_ITHREADS) && VMG_HAS_PERL(5, 8, 9)
+#if defined(USE_ITHREADS) && XSH_HAS_PERL(5, 8, 9)
? OPc_PADOP : OPc_PVOP;
#else
? OPc_SVOP : OPc_PVOP;
return OPc_BASEOP;
else
return OPc_PVOP;
-#if VMG_HAS_PERL(5, 21, 5)
+#if XSH_HAS_PERL(5, 21, 5)
case OA_METHOP:
return OPc_METHOP;
#endif
-#if VMG_HAS_PERL(5, 21, 7)
+#if XSH_HAS_PERL(5, 21, 7)
case OA_UNOP_AUX:
return OPc_UNOP_AUX;
#endif
static const char vmg_invalid_wiz[] = "Invalid wizard object";
static const char vmg_wrongargnum[] = "Wrong number of arguments";
-/* --- Context-safe global data -------------------------------------------- */
-
-#define MY_CXT_KEY __PACKAGE__ "::_guts" XS_VERSION
+/* --- Thread-local storage ------------------------------------------------ */
typedef struct {
HV *b__op_stashes[OPc_MAX];
#if VMG_RESET_RMG_NEEDS_TRAMPOLINE
vmg_trampoline reset_rmg;
#endif
-} my_cxt_t;
+} xsh_user_cxt_t;
+
+#if XSH_THREADSAFE
+
+static void xsh_user_clone(pTHX_ const xsh_user_cxt_t *old_cxt, xsh_user_cxt_t *new_cxt) {
+ int c;
+
+ for (c = OPc_NULL; c < OPc_MAX; ++c) {
+ new_cxt->b__op_stashes[c] = old_cxt->b__op_stashes[c]
+ ? gv_stashpv(vmg_opclassnames[c], 1)
+ : NULL;
+ }
+
+ new_cxt->depth = old_cxt->depth;
+ new_cxt->freed_tokens = NULL;
+
+ return;
+}
+
+
+#endif /* XSH_THREADSAFE */
-START_MY_CXT
+#define XSH_THREADS_NEED_TEARDOWN_LATE 1
+
+#include "xsh/threads.h"
/* --- <vmg_vtable> structure ---------------------------------------------- */
-#if VMG_THREADSAFE
+#if XSH_THREADSAFE
typedef struct {
MGVTBL *vtbl;
static vmg_vtable *vmg_vtable_dup(pTHX_ vmg_vtable *t) {
#define vmg_vtable_dup(T) vmg_vtable_dup(aTHX_ (T))
- VMG_LOCK(&vmg_vtable_refcount_mutex);
+ XSH_LOCK(&vmg_vtable_refcount_mutex);
++t->refcount;
- VMG_UNLOCK(&vmg_vtable_refcount_mutex);
+ XSH_UNLOCK(&vmg_vtable_refcount_mutex);
return t;
}
#define vmg_vtable_free(T) vmg_vtable_free(aTHX_ (T))
U32 refcount;
- VMG_LOCK(&vmg_vtable_refcount_mutex);
+ XSH_LOCK(&vmg_vtable_refcount_mutex);
refcount = --t->refcount;
- VMG_UNLOCK(&vmg_vtable_refcount_mutex);
+ XSH_UNLOCK(&vmg_vtable_refcount_mutex);
if (!refcount) {
PerlMemShared_free(t->vtbl);
}
}
-#else /* VMG_THREADSAFE */
+#else /* XSH_THREADSAFE */
typedef MGVTBL vmg_vtable;
#define vmg_vtable_free(T) Safefree(T)
-#endif /* !VMG_THREADSAFE */
+#endif /* !XSH_THREADSAFE */
/* --- <vmg_wizard> structure ---------------------------------------------- */
return;
}
-#if VMG_THREADSAFE
+#if XSH_THREADSAFE
#define VMG_CLONE_CB(N) \
z->cb_ ## N = (w->cb_ ## N) ? SvREFCNT_inc(sv_dup(w->cb_ ## N, params)) \
return z;
}
-#endif /* VMG_THREADSAFE */
+#endif /* XSH_THREADSAFE */
#define vmg_wizard_id(W) PTR2IV(vmg_vtable_vtbl((W)->vtable))
return 0;
}
-#if VMG_THREADSAFE
+#if XSH_THREADSAFE
static int vmg_wizard_sv_dup(pTHX_ MAGIC *mg, CLONE_PARAMS *params) {
mg->mg_ptr = (char *) vmg_wizard_dup((const vmg_wizard *) mg->mg_ptr, params);
return 0;
}
-#endif /* VMG_THREADSAFE */
+#endif /* XSH_THREADSAFE */
static MGVTBL vmg_wizard_sv_vtbl = {
NULL, /* get */
NULL, /* clear */
vmg_wizard_sv_free, /* free */
NULL, /* copy */
-#if VMG_THREADSAFE
+#if XSH_THREADSAFE
vmg_wizard_sv_dup, /* dup */
#else
NULL, /* dup */
#define vmg_wizard_sv_new(W) vmg_wizard_sv_new(aTHX_ (W))
SV *wiz;
-#if VMG_THREADSAFE
+#if XSH_THREADSAFE
wiz = newSV(0);
#else
wiz = newSViv(PTR2IV(w));
return wiz;
}
-#if VMG_THREADSAFE
+#if XSH_THREADSAFE
#define vmg_sv_has_wizard_type(S) (SvTYPE(S) >= SVt_PVMG)
return NULL;
}
-#else /* VMG_THREADSAFE */
+#else /* XSH_THREADSAFE */
#define vmg_sv_has_wizard_type(S) SvIOK(S)
#define vmg_wizard_from_sv_nocheck(W) INT2PTR(const vmg_wizard *, SvIVX(W))
-#endif /* !VMG_THREADSAFE */
+#endif /* !XSH_THREADSAFE */
#define vmg_wizard_from_sv(W) (vmg_sv_has_wizard_type(W) ? vmg_wizard_from_sv_nocheck(W) : NULL)
SPAGAIN;
nsv = POPs;
-#if VMG_HAS_PERL(5, 8, 3)
+#if XSH_HAS_PERL(5, 8, 3)
SvREFCNT_inc_simple_void(nsv); /* Or it will be destroyed in FREETMPS */
#else
nsv = sv_newref(nsv); /* Workaround some bug in SvREFCNT_inc() */
static void vmg_mg_del(pTHX_ SV *sv, MAGIC *prevmagic, MAGIC *mg, MAGIC *moremagic) {
#define vmg_mg_del(S, P, M, N) vmg_mg_del(aTHX_ (S), (P), (M), (N))
- dMY_CXT;
+ dXSH_CXT;
if (prevmagic)
prevmagic->mg_moremagic = moremagic;
}
#endif /* VMG_UVAR */
- if (MY_CXT.depth) {
- mg->mg_moremagic = MY_CXT.freed_tokens;
- MY_CXT.freed_tokens = mg;
+ if (XSH_CXT.depth) {
+ mg->mg_moremagic = XSH_CXT.freed_tokens;
+ XSH_CXT.freed_tokens = mg;
} else {
mg->mg_moremagic = NULL;
Safefree(mg);
#define VMG_OP_INFO_NAME 1
#define VMG_OP_INFO_OBJECT 2
-#if VMG_THREADSAFE
+#if XSH_THREADSAFE
static perl_mutex vmg_op_name_init_mutex;
#endif
#define vmg_op_info_init(W) vmg_op_info_init(aTHX_ (W))
switch (opinfo) {
case VMG_OP_INFO_NAME:
- VMG_LOCK(&vmg_op_name_init_mutex);
+ XSH_LOCK(&vmg_op_name_init_mutex);
if (!vmg_op_name_init) {
OPCODE t;
for (t = 0; t < OP_max; ++t)
vmg_op_name_len[t] = strlen(PL_op_name[t]);
vmg_op_name_init = 1;
}
- VMG_UNLOCK(&vmg_op_name_init_mutex);
+ XSH_UNLOCK(&vmg_op_name_init_mutex);
break;
case VMG_OP_INFO_OBJECT: {
- dMY_CXT;
- if (!MY_CXT.b__op_stashes[0]) {
+ dXSH_CXT;
+ if (!XSH_CXT.b__op_stashes[0]) {
int c;
require_pv("B.pm");
for (c = OPc_NULL; c < OPc_MAX; ++c)
- MY_CXT.b__op_stashes[c] = gv_stashpv(vmg_opclassnames[c], 1);
+ XSH_CXT.b__op_stashes[c] = gv_stashpv(vmg_opclassnames[c], 1);
}
break;
}
return sv_2mortal(newSVpvn(name, name_len));
}
case VMG_OP_INFO_OBJECT: {
- dMY_CXT;
+ dXSH_CXT;
return sv_bless(sv_2mortal(newRV_noinc(newSViv(PTR2IV(PL_op)))),
- MY_CXT.b__op_stashes[vmg_opclass(PL_op)]);
+ XSH_CXT.b__op_stashes[vmg_opclass(PL_op)]);
}
default:
break;
#define VMG_CB_CALL_GUARD 4
static int vmg_dispell_guard_oncroak(pTHX_ void *ud) {
- dMY_CXT;
+ dXSH_CXT;
- MY_CXT.depth--;
+ XSH_CXT.depth--;
/* If we're at the upmost magic call and we're about to die, we can just free
* the tokens right now, since we will jump past the problematic part of our
* caller. */
- if (MY_CXT.depth == 0 && MY_CXT.freed_tokens) {
- vmg_magic_chain_free(MY_CXT.freed_tokens, NULL);
- MY_CXT.freed_tokens = NULL;
+ if (XSH_CXT.depth == 0 && XSH_CXT.freed_tokens) {
+ vmg_magic_chain_free(XSH_CXT.freed_tokens, NULL);
+ XSH_CXT.freed_tokens = NULL;
}
return 1;
return 0;
}
-#if VMG_THREADSAFE
+#if XSH_THREADSAFE
static int vmg_dispell_guard_dup(pTHX_ MAGIC *mg, CLONE_PARAMS *params) {
/* The freed magic tokens aren't cloned by perl because it cannot reach them
return 0;
}
-#endif /* VMG_THREADSAFE */
+#endif /* XSH_THREADSAFE */
static MGVTBL vmg_dispell_guard_vtbl = {
NULL, /* get */
NULL, /* clear */
vmg_dispell_guard_free, /* free */
NULL, /* copy */
-#if VMG_THREADSAFE
+#if XSH_THREADSAFE
vmg_dispell_guard_dup, /* dup */
#else
NULL, /* dup */
PUTBACK;
if (flags & VMG_CB_CALL_GUARD) {
- dMY_CXT;
- MY_CXT.depth++;
+ dXSH_CXT;
+ XSH_CXT.depth++;
vmg_call_sv(cb, G_SCALAR, vmg_dispell_guard_oncroak, NULL);
- MY_CXT.depth--;
- if (MY_CXT.depth == 0 && MY_CXT.freed_tokens)
- chain = &MY_CXT.freed_tokens;
+ XSH_CXT.depth--;
+ if (XSH_CXT.depth == 0 && XSH_CXT.freed_tokens)
+ chain = &XSH_CXT.freed_tokens;
} else {
vmg_call_sv(cb, G_SCALAR, 0, NULL);
}
static U32 vmg_sv_len(pTHX_ SV *sv) {
#define vmg_sv_len(S) vmg_sv_len(aTHX_ (S))
STRLEN len;
-#if VMG_HAS_PERL(5, 9, 3)
+#if XSH_HAS_PERL(5, 9, 3)
const U8 *s = VOID2(const U8 *, VOID2(const void *, SvPV_const(sv, len)));
#else
U8 *s = SvPV(sv, len);
const vmg_wizard *w = vmg_wizard_from_mg_nocheck(mg);
unsigned int flags = w->opinfo;
-#if !VMG_HAS_PERL(5, 12, 0)
+#if !XSH_HAS_PERL(5, 12, 0)
flags |= VMG_CB_CALL_GUARD;
#endif
#if VMG_PROPAGATE_ERRSV_NEEDS_TRAMPOLINE
if (optype == OP_LEAVETRY) {
- dMY_CXT;
- PL_op = vmg_trampoline_bump(&MY_CXT.propagate_errsv, errsv, PL_op);
+ dXSH_CXT;
+ PL_op = vmg_trampoline_bump(&XSH_CXT.propagate_errsv, errsv, PL_op);
} else if (optype == OP_LEAVEEVAL) {
SV *guard = sv_newmortal();
vmg_sv_magicext(guard, errsv, &vmg_propagate_errsv_vtbl, NULL, 0);
}
#else /* !VMG_PROPAGATE_ERRSV_NEEDS_TRAMPOLINE */
-# if !VMG_HAS_PERL(5, 8, 9)
+# if !XSH_HAS_PERL(5, 8, 9)
{
SV *guard = sv_newmortal();
vmg_sv_magicext(guard, errsv, &vmg_propagate_errsv_vtbl, NULL, 0);
/* So that it survives the temp cleanup below */
SvREFCNT_inc_simple_void(sv);
-#if !(VMG_HAS_PERL_MAINT(5, 11, 0, 32686) || VMG_HAS_PERL(5, 12, 0))
+#if !(XSH_HAS_PERL_MAINT(5, 11, 0, 32686) || XSH_HAS_PERL(5, 12, 0))
/* The previous magic tokens were freed but the magic chain wasn't updated, so
* if you access the sv from the callback the old deleted magics will trigger
* and cause memory misreads. Change 32686 solved it that way : */
PUTBACK;
{
- dMY_CXT;
- MY_CXT.depth++;
+ dXSH_CXT;
+ XSH_CXT.depth++;
vmg_call_sv(w->cb_free, G_SCALAR, vmg_svt_free_cleanup, &ud);
- MY_CXT.depth--;
- if (MY_CXT.depth == 0 && MY_CXT.freed_tokens) {
+ XSH_CXT.depth--;
+ if (XSH_CXT.depth == 0 && XSH_CXT.freed_tokens) {
/* Free all the tokens in the chain but the current one (if it's present).
* It will be taken care of by our caller, Perl_mg_free(). */
- vmg_magic_chain_free(MY_CXT.freed_tokens, mg);
- MY_CXT.freed_tokens = NULL;
+ vmg_magic_chain_free(XSH_CXT.freed_tokens, mg);
+ XSH_CXT.freed_tokens = NULL;
}
}
#define vmg_svt_free_noop vmg_svt_default_noop
-#if VMG_HAS_PERL_MAINT(5, 11, 0, 33256) || VMG_HAS_PERL(5, 12, 0)
+#if XSH_HAS_PERL_MAINT(5, 11, 0, 33256) || XSH_HAS_PERL(5, 12, 0)
# define VMG_SVT_COPY_KEYLEN_TYPE I32
#else
# define VMG_SVT_COPY_KEYLEN_TYPE int
#if VMG_RESET_RMG_NEEDS_TRAMPOLINE
- dMY_CXT;
+ dXSH_CXT;
- PL_op = vmg_trampoline_bump(&MY_CXT.reset_rmg, sv, PL_op);
+ PL_op = vmg_trampoline_bump(&XSH_CXT.reset_rmg, sv, PL_op);
#else /* !VMG_RESET_RMG_NEEDS_TRAMPOLINE */
/* --- Module setup/teardown ----------------------------------------------- */
-#if VMG_THREADSAFE
-
-static I32 vmg_loaded = 0;
-
-/* We must use preexistent global mutexes or we will never be able to destroy
- * them. */
-# if VMG_HAS_PERL(5, 9, 3)
-# define VMG_LOADED_LOCK MUTEX_LOCK(&PL_my_ctx_mutex)
-# define VMG_LOADED_UNLOCK MUTEX_UNLOCK(&PL_my_ctx_mutex)
-# else
-# define VMG_LOADED_LOCK OP_REFCNT_LOCK
-# define VMG_LOADED_UNLOCK OP_REFCNT_UNLOCK
-# endif
+#if XSH_THREADSAFE
-static void vmg_global_teardown_late_locked(pTHX) {
-#define vmg_global_teardown_late_locked() vmg_global_teardown_late_locked(aTHX)
+static void vmg_global_teardown_late_locked(pTHX_ void *ud) {
+#define vmg_global_teardown_late_locked(UD) vmg_global_teardown_late_locked(aTHX_ (UD))
MUTEX_DESTROY(&vmg_op_name_init_mutex);
MUTEX_DESTROY(&vmg_vtable_refcount_mutex);
return;
}
-static int vmg_global_teardown_free(pTHX_ SV *sv, MAGIC *mg) {
- VMG_LOADED_LOCK;
-
- if (vmg_loaded == 0)
- vmg_global_teardown_late_locked();
-
- VMG_LOADED_UNLOCK;
-
- return 0;
-}
-
-static MGVTBL vmg_global_teardown_vtbl = {
- 0,
- 0,
- 0,
- 0,
- vmg_global_teardown_free
-#if MGf_COPY
- , 0
-#endif
-#if MGf_DUP
- , 0
-#endif
-#if MGf_LOCAL
- , 0
-#endif
-};
-
static signed char vmg_destruct_level(pTHX) {
#define vmg_destruct_level() vmg_destruct_level(aTHX)
signed char lvl;
const char *s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL");
if (s) {
int i;
-#if VMG_HAS_PERL(5, 21, 3)
+#if XSH_HAS_PERL(5, 21, 3)
if (strEQ(s, "-1")) {
i = -1;
} else {
-# if VMG_HAS_PERL(5, 21, 10)
+# if XSH_HAS_PERL(5, 21, 10)
UV uv;
if (Perl_grok_atoUV(s, &uv, NULL) && uv <= INT_MAX)
i = (int) uv;
else
i = 0;
-# else /* VMG_HAS_PERL(5, 21, 3) && !VMG_HAS_PERL(5, 21, 10) */
+# else /* XSH_HAS_PERL(5, 21, 3) && !XSH_HAS_PERL(5, 21, 10) */
i = Perl_grok_atou(s, NULL);
# endif
}
-#else /* !VMG_HAS_PERL(5, 21, 3) */
+#else /* !XSH_HAS_PERL(5, 21, 3) */
i = atoi(s);
#endif
if (lvl < i)
return lvl;
}
-#endif /* VMG_THREADSAFE */
-
-static void vmg_teardown(pTHX_ void *param) {
- dMY_CXT;
-
-#if VMG_THREADSAFE
- VMG_LOADED_LOCK;
+#endif /* XSH_THREADSAFE */
- if (vmg_loaded == 1) {
- vmg_loaded = 0;
- if (vmg_destruct_level() == 0) {
- vmg_global_teardown_late_locked();
- } else {
- if (!PL_strtab)
- PL_strtab = newHV();
- vmg_sv_magicext((SV *) PL_strtab, NULL, &vmg_global_teardown_vtbl, NULL, 0);
- }
- } else {
- VMG_ASSERT(vmg_loaded > 1);
- --vmg_loaded;
- }
-
- VMG_LOADED_UNLOCK;
+static void xsh_user_global_setup(pTHX) {
+#if XSH_THREADSAFE
+ MUTEX_INIT(&vmg_vtable_refcount_mutex);
+ MUTEX_INIT(&vmg_op_name_init_mutex);
#endif
- if (MY_CXT.depth == 0 && MY_CXT.freed_tokens) {
- vmg_magic_chain_free(MY_CXT.freed_tokens, NULL);
- MY_CXT.freed_tokens = NULL;
- }
-
return;
}
-static void vmg_setup(pTHX) {
-#define vmg_setup() vmg_setup(aTHX)
+static void xsh_user_local_setup(pTHX_ xsh_user_cxt_t *cxt) {
HV *stash;
int c;
- MY_CXT_INIT;
-
-#if VMG_THREADSAFE
- VMG_LOADED_LOCK;
-
- if (vmg_loaded == 0) {
- MUTEX_INIT(&vmg_vtable_refcount_mutex);
- MUTEX_INIT(&vmg_op_name_init_mutex);
- vmg_loaded = 1;
- } else {
- VMG_ASSERT(vmg_loaded > 0);
- ++vmg_loaded;
- }
-
- VMG_LOADED_UNLOCK;
-#endif
for (c = OPc_NULL; c < OPc_MAX; ++c)
- MY_CXT.b__op_stashes[c] = NULL;
+ cxt->b__op_stashes[c] = NULL;
- MY_CXT.depth = 0;
- MY_CXT.freed_tokens = NULL;
+ cxt->depth = 0;
+ cxt->freed_tokens = NULL;
#if VMG_PROPAGATE_ERRSV_NEEDS_TRAMPOLINE
- vmg_trampoline_init(&MY_CXT.propagate_errsv, vmg_pp_propagate_errsv);
+ vmg_trampoline_init(&cxt->propagate_errsv, vmg_pp_propagate_errsv);
#endif
#if VMG_RESET_RMG_NEEDS_TRAMPOLINE
- vmg_trampoline_init(&MY_CXT.reset_rmg, vmg_pp_reset_rmg);
+ vmg_trampoline_init(&cxt->reset_rmg, vmg_pp_reset_rmg);
#endif
- stash = gv_stashpv(__PACKAGE__, 1);
+ stash = gv_stashpv(XSH_PACKAGE, 1);
newCONSTSUB(stash, "MGf_COPY", newSVuv(MGf_COPY));
newCONSTSUB(stash, "MGf_DUP", newSVuv(MGf_DUP));
newCONSTSUB(stash, "MGf_LOCAL", newSVuv(MGf_LOCAL));
newCONSTSUB(stash, "VMG_COMPAT_CODE_COPY_CLONE",
newSVuv(VMG_COMPAT_CODE_COPY_CLONE));
newCONSTSUB(stash, "VMG_COMPAT_GLOB_GET", newSVuv(VMG_COMPAT_GLOB_GET));
- newCONSTSUB(stash, "VMG_PERL_PATCHLEVEL", newSVuv(VMG_PERL_PATCHLEVEL));
- newCONSTSUB(stash, "VMG_THREADSAFE", newSVuv(VMG_THREADSAFE));
- newCONSTSUB(stash, "VMG_FORKSAFE", newSVuv(VMG_FORKSAFE));
+ newCONSTSUB(stash, "VMG_PERL_PATCHLEVEL", newSVuv(XSH_PERL_PATCHLEVEL));
+ newCONSTSUB(stash, "VMG_THREADSAFE", newSVuv(XSH_THREADSAFE));
+ newCONSTSUB(stash, "VMG_FORKSAFE", newSVuv(XSH_FORKSAFE));
newCONSTSUB(stash, "VMG_OP_INFO_NAME", newSVuv(VMG_OP_INFO_NAME));
newCONSTSUB(stash, "VMG_OP_INFO_OBJECT", newSVuv(VMG_OP_INFO_OBJECT));
- call_atexit(vmg_teardown, NULL);
+ return;
+}
+
+static void xsh_user_local_teardown(pTHX_ xsh_user_cxt_t *cxt) {
+ if (cxt->depth == 0 && cxt->freed_tokens) {
+ vmg_magic_chain_free(cxt->freed_tokens, NULL);
+ cxt->freed_tokens = NULL;
+ }
+
+ return;
+}
+
+static void xsh_user_global_teardown(pTHX) {
+#if XSH_THREADSAFE
+ if (vmg_destruct_level() == 0)
+ vmg_global_teardown_late_locked(NULL);
+ else
+ xsh_teardown_late_register(vmg_global_teardown_late_locked, NULL);
+#endif
return;
}
BOOT:
{
- vmg_setup();
+ xsh_setup();
}
-#if VMG_THREADSAFE
+#if XSH_THREADSAFE
void
CLONE(...)
PROTOTYPE: DISABLE
-PREINIT:
- U32 had_b__op_stash = 0;
- I32 old_depth;
- int c;
PPCODE:
- {
- dMY_CXT;
- for (c = OPc_NULL; c < OPc_MAX; ++c) {
- if (MY_CXT.b__op_stashes[c])
- had_b__op_stash |= (((U32) 1) << c);
- }
- old_depth = MY_CXT.depth;
- }
- {
- MY_CXT_CLONE;
- for (c = OPc_NULL; c < OPc_MAX; ++c) {
- MY_CXT.b__op_stashes[c] = (had_b__op_stash & (((U32) 1) << c))
- ? gv_stashpv(vmg_opclassnames[c], 1) : NULL;
- }
- MY_CXT.depth = old_depth;
- MY_CXT.freed_tokens = NULL;
- VMG_LOADED_LOCK;
- VMG_ASSERT(vmg_loaded > 0);
- ++vmg_loaded;
- VMG_LOADED_UNLOCK;
- }
+ xsh_clone();
XSRETURN(0);
-#endif /* VMG_THREADSAFE */
+#endif /* XSH_THREADSAFE */
SV *_wizard(...)
PROTOTYPE: DISABLE
--- /dev/null
+#ifndef XSH_THREADS_H
+#define XSH_THREADS_H 1
+
+#include "caps.h" /* XSH_HAS_PERL(), XSH_THREADSAFE */
+#include "util.h" /* XSH_PACKAGE, dNOOP, NOOP */
+
+#ifndef XSH_THREADS_COMPILE_TIME_PROTECTION
+# define XSH_THREADS_COMPILE_TIME_PROTECTION 0
+#endif
+
+#ifndef XSH_THREADS_USER_CONTEXT
+# define XSH_THREADS_USER_CONTEXT 1
+#endif
+
+#ifndef XSH_THREADS_USER_GLOBAL_SETUP
+# define XSH_THREADS_USER_GLOBAL_SETUP 1
+#endif
+
+#ifndef XSH_THREADS_USER_LOCAL_SETUP
+# define XSH_THREADS_USER_LOCAL_SETUP 1
+#endif
+
+#ifndef XSH_THREADS_USER_LOCAL_TEARDOWN
+# define XSH_THREADS_USER_LOCAL_TEARDOWN 1
+#endif
+
+#ifndef XSH_THREADS_USER_GLOBAL_TEARDOWN
+# define XSH_THREADS_USER_GLOBAL_TEARDOWN 1
+#endif
+
+#ifndef XSH_THREADS_PEEP_CONTEXT
+# define XSH_THREADS_PEEP_CONTEXT 0
+#endif
+
+#ifndef XSH_THREADS_HINTS_CONTEXT
+# define XSH_THREADS_HINTS_CONTEXT 0
+#endif
+
+#ifndef XSH_THREADS_USER_CLONE_NEEDS_DUP
+# define XSH_THREADS_USER_CLONE_NEEDS_DUP 0
+#endif
+
+#if XSH_THREADSAFE && (XSH_THREADS_HINTS_CONTEXT || XSH_THREADS_USER_CLONE_NEEDS_DUP)
+# define XSH_THREADS_CLONE_NEEDS_DUP 1
+#else
+# define XSH_THREADS_CLONE_NEEDS_DUP 0
+#endif
+
+#if defined(XSH_OPS_H) && (!XSH_THREADS_GLOBAL_SETUP || !XSH_THREADS_GLOBAL_TEARDOWN)
+# error settting up hook check functions require global setup/teardown
+#endif
+
+#ifndef XSH_THREADS_NEED_TEARDOWN_LATE
+# define XSH_THREADS_NEED_TEARDOWN_LATE 0
+#endif
+
+#if XSH_THREADS_NEED_TEARDOWN_LATE && (!XSH_THREADS_USER_LOCAL_TEARDOWN || !XSH_THREADS_USER_GLOBAL_TEARDOWN)
+# error you need to declare local or global teardown handlers to use the late teardown feature
+#endif
+
+#if XSH_THREADSAFE
+# ifndef MY_CXT_CLONE
+# define MY_CXT_CLONE \
+ dMY_CXT_SV; \
+ my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1)); \
+ Copy(INT2PTR(my_cxt_t*, SvUV(my_cxt_sv)), my_cxtp, 1, my_cxt_t); \
+ sv_setuv(my_cxt_sv, PTR2UV(my_cxtp))
+# endif
+#else
+# undef dMY_CXT
+# define dMY_CXT dNOOP
+# undef MY_CXT
+# define MY_CXT xsh_globaldata
+# undef START_MY_CXT
+# define START_MY_CXT static my_cxt_t MY_CXT;
+# undef MY_CXT_INIT
+# define MY_CXT_INIT NOOP
+# undef MY_CXT_CLONE
+# define MY_CXT_CLONE NOOP
+#endif
+
+#if XSH_THREADSAFE
+/* We must use preexistent global mutexes or we will never be able to destroy
+ * them. */
+# if XSH_HAS_PERL(5, 9, 3)
+# define XSH_LOADED_LOCK MUTEX_LOCK(&PL_my_ctx_mutex)
+# define XSH_LOADED_UNLOCK MUTEX_UNLOCK(&PL_my_ctx_mutex)
+# else
+# define XSH_LOADED_LOCK OP_REFCNT_LOCK
+# define XSH_LOADED_UNLOCK OP_REFCNT_UNLOCK
+# endif
+#else
+# define XSH_LOADED_LOCK NOOP
+# define XSH_LOADED_UNLOCK NOOP
+#endif
+
+static I32 xsh_loaded = 0;
+
+#if XSH_THREADSAFE && XSH_THREADS_COMPILE_TIME_PROTECTION
+
+#define PTABLE_USE_DEFAULT 1
+
+#include "ptable.h"
+
+#define ptable_loaded_store(T, K, V) ptable_default_store(aPTBL_ (T), (K), (V))
+#define ptable_loaded_delete(T, K) ptable_default_delete(aPTBL_ (T), (K))
+#define ptable_loaded_free(T) ptable_default_free(aPTBL_ (T))
+
+static ptable *xsh_loaded_cxts = NULL;
+
+static int xsh_is_loaded(pTHX_ void *cxt) {
+#define xsh_is_loaded(C) xsh_is_loaded(aTHX_ (C))
+ int res = 0;
+
+ XSH_LOADED_LOCK;
+ if (xsh_loaded_cxts && ptable_fetch(xsh_loaded_cxts, cxt))
+ res = 1;
+ XSH_LOADED_UNLOCK;
+
+ return res;
+}
+
+static int xsh_set_loaded_locked(pTHX_ void *cxt) {
+#define xsh_set_loaded_locked(C) xsh_set_loaded_locked(aTHX_ (C))
+ int global_setup = 0;
+
+ if (xsh_loaded <= 0) {
+ XSH_ASSERT(xsh_loaded == 0);
+ XSH_ASSERT(!xsh_loaded_cxts);
+ xsh_loaded_cxts = ptable_new(4);
+ global_setup = 1;
+ }
+ ++xsh_loaded;
+ XSH_ASSERT(xsh_loaded_cxts);
+ ptable_loaded_store(xsh_loaded_cxts, cxt, cxt);
+
+ return global_setup;
+}
+
+static int xsh_clear_loaded_locked(pTHX_ void *cxt) {
+#define xsh_clear_loaded_locked(C) xsh_clear_loaded_locked(aTHX_ (C))
+ int global_teardown = 0;
+
+ if (xsh_loaded > 1) {
+ XSH_ASSERT(xsh_loaded_cxts);
+ ptable_loaded_delete(xsh_loaded_cxts, cxt);
+ --xsh_loaded;
+ } else if (xsh_loaded_cxts) {
+ XSH_ASSERT(xsh_loaded == 1);
+ ptable_loaded_free(xsh_loaded_cxts);
+ xsh_loaded_cxts = NULL;
+ xsh_loaded = 0;
+ global_teardown = 1;
+ }
+
+ return global_teardown;
+}
+
+#else /* XSH_THREADS_COMPILE_TIME_PROTECTION */
+
+#define xsh_is_loaded_locked(C) (xsh_loaded > 0)
+#define xsh_set_loaded_locked(C) ((xsh_loaded++ <= 0) ? 1 : 0)
+#define xsh_clear_loaded_locked(C) ((--xsh_loaded <= 0) ? 1 : 0)
+
+#if XSH_THREADSAFE
+
+static int xsh_is_loaded(pTHX_ void *cxt) {
+#define xsh_is_loaded(C) xsh_is_loaded(aTHX_ (C))
+ int res = 0;
+
+ XSH_LOADED_LOCK;
+ res = xsh_is_loaded_locked(cxt);
+ XSH_LOADED_UNLOCK;
+
+ return res;
+}
+
+#else
+
+#define xsh_is_loaded(C) xsh_is_loaded_locked(C)
+
+#endif
+
+#endif /* !XSH_THREADS_COMPILE_TIME_PROTECTION */
+
+#define MY_CXT_KEY XSH_PACKAGE "::_guts" XS_VERSION
+
+typedef struct {
+#if XSH_THREADS_USER_CONTEXT
+ xsh_user_cxt_t cxt_user;
+#endif
+#if XSH_THREADS_PEEP_CONTEXT
+ xsh_peep_cxt_t cxt_peep;
+#endif
+#if XSH_THREADS_HINTS_CONTEXT
+ xsh_hints_cxt_t cxt_hints;
+#endif
+#if XSH_THREADS_CLONE_NEEDS_DUP
+ tTHX owner;
+#endif
+#if !(XSH_THREADS_USER_CONTEXT || XSH_THREADS_PEEP_CONTEXT || XSH_THREADS_HINTS_CONTEXT || XSH_THREADS_CLONE_NEEDS_DUP)
+ int dummy;
+#endif
+} my_cxt_t;
+
+START_MY_CXT
+
+#if XSH_THREADS_USER_CONTEXT
+# define dXSH_CXT dMY_CXT
+# define XSH_CXT (MY_CXT.cxt_user)
+#endif
+
+#if XSH_THREADS_USER_GLOBAL_SETUP
+static void xsh_user_global_setup(pTHX);
+#endif
+
+#if XSH_THREADS_USER_LOCAL_SETUP
+# if XSH_THREADS_USER_CONTEXT
+static void xsh_user_local_setup(pTHX_ xsh_user_cxt_t *cxt);
+# else
+static void xsh_user_local_setup(pTHX);
+# endif
+#endif
+
+#if XSH_THREADS_USER_LOCAL_TEARDOWN
+# if XSH_THREADS_USER_CONTEXT
+static void xsh_user_local_teardown(pTHX_ xsh_user_cxt_t *cxt);
+# else
+static void xsh_user_local_teardown(pTHX);
+# endif
+#endif
+
+#if XSH_THREADS_USER_GLOBAL_TEARDOWN
+static void xsh_user_global_teardown(pTHX);
+#endif
+
+#if XSH_THREADSAFE && XSH_THREADS_USER_CONTEXT
+# if XSH_THREADS_USER_CLONE_NEEDS_DUP
+static void xsh_user_clone(pTHX_ const xsh_user_cxt_t *old_cxt, xsh_user_cxt_t *new_cxt, CLONE_PARAMS *params);
+# else
+static void xsh_user_clone(pTHX_ const xsh_user_cxt_t *old_cxt, xsh_user_cxt_t *new_cxt);
+# endif
+#endif
+
+#if XSH_THREADS_PEEP_CONTEXT
+static xsh_peep_cxt_t *xsh_peep_get_cxt(pTHX) {
+ dMY_CXT;
+ XSH_ASSERT(xsh_is_loaded(&MY_CXT));
+ return &MY_CXT.cxt_peep;
+}
+#endif
+
+#if XSH_THREADS_HINTS_CONTEXT
+static xsh_hints_cxt_t *xsh_hints_get_cxt(pTHX) {
+ dMY_CXT;
+ XSH_ASSERT(xsh_is_loaded(&MY_CXT));
+ return &MY_CXT.cxt_hints;
+}
+#endif
+
+#if XSH_THREADS_NEED_TEARDOWN_LATE
+
+typedef void (*xsh_teardown_late_cb)(pTHX_ void *ud);
+
+static int xsh_teardown_late_simple_free(pTHX_ SV *sv, MAGIC *mg) {
+ xsh_teardown_late_cb cb;
+
+ cb = DPTR2FPTR(xsh_teardown_late_cb, mg->mg_ptr);
+
+ XSH_LOADED_LOCK;
+ if (xsh_loaded == 0)
+ cb(aTHX_ NULL);
+ XSH_LOADED_UNLOCK;
+
+ return 0;
+}
+
+static MGVTBL xsh_teardown_late_simple_vtbl = {
+ 0,
+ 0,
+ 0,
+ 0,
+ xsh_teardown_late_simple_free
+#if MGf_COPY
+ , 0
+#endif
+#if MGf_DUP
+ , 0
+#endif
+#if MGf_LOCAL
+ , 0
+#endif
+};
+
+typedef struct {
+ xsh_teardown_late_cb cb;
+ void *ud;
+} xsh_teardown_late_token;
+
+static int xsh_teardown_late_arg_free(pTHX_ SV *sv, MAGIC *mg) {
+ xsh_teardown_late_token *tok;
+
+ tok = (xsh_teardown_late_token *) mg->mg_ptr;
+
+ XSH_LOADED_LOCK;
+ if (xsh_loaded == 0)
+ tok->cb(aTHX_ tok->ud);
+ XSH_LOADED_UNLOCK;
+
+ PerlMemShared_free(tok);
+
+ return 0;
+}
+
+static MGVTBL xsh_teardown_late_arg_vtbl = {
+ 0,
+ 0,
+ 0,
+ 0,
+ xsh_teardown_late_arg_free
+#if MGf_COPY
+ , 0
+#endif
+#if MGf_DUP
+ , 0
+#endif
+#if MGf_LOCAL
+ , 0
+#endif
+};
+
+static void xsh_teardown_late_register(pTHX_ xsh_teardown_late_cb cb, void *ud){
+#define xsh_teardown_late_register(CB, UD) xsh_teardown_late_register(aTHX_ (CB), (UD))
+ void *ptr;
+
+ if (!ud) {
+ ptr = FPTR2DPTR(void *, cb);
+ } else {
+ xsh_teardown_late_token *tok;
+
+ tok = PerlMemShared_malloc(sizeof *tok);
+ tok->cb = cb;
+ tok->ud = ud;
+
+ ptr = tok;
+ }
+
+ if (!PL_strtab)
+ PL_strtab = newHV();
+
+ sv_magicext((SV *) PL_strtab, NULL, PERL_MAGIC_ext,
+ ud ? &xsh_teardown_late_arg_vtbl : &xsh_teardown_late_simple_vtbl,
+ ptr, 0);
+
+ return;
+}
+
+#endif /* XSH_THREADS_NEED_TEARDOWN_LATE */
+
+static void xsh_teardown(pTHX_ void *root) {
+ dMY_CXT;
+
+#if XSH_THREADS_USER_LOCAL_TEARDOWN
+# if XSH_THREADS_USER_CONTEXT
+ xsh_user_local_teardown(aTHX_ &XSH_CXT);
+# else
+ xsh_user_local_teardown(aTHX);
+# endif
+#endif
+
+#if XSH_THREADS_PEEP_CONTEXT
+ xsh_peep_local_teardown(aTHX_ &MY_CXT.cxt_peep);
+#endif
+
+#if XSH_THREADS_HINTS_CONTEXT
+ xsh_hints_local_teardown(aTHX_ &MY_CXT.cxt_hints);
+#endif
+
+ XSH_LOADED_LOCK;
+
+ if (xsh_clear_loaded_locked(&MY_CXT)) {
+#if XSH_THREADS_USER_GLOBAL_TEARDOWN
+ xsh_user_global_teardown(aTHX);
+#endif
+
+#if XSH_THREADS_HINTS_CONTEXT
+ xsh_hints_global_teardown(aTHX);
+#endif
+ }
+
+ XSH_LOADED_UNLOCK;
+
+ return;
+}
+
+static void xsh_setup(pTHX) {
+#define xsh_setup() xsh_setup(aTHX)
+ MY_CXT_INIT; /* Takes/release PL_my_ctx_mutex */
+
+ XSH_LOADED_LOCK;
+
+ if (xsh_set_loaded_locked(&MY_CXT)) {
+#if XSH_THREADS_HINTS_CONTEXT
+ xsh_hints_global_setup(aTHX);
+#endif
+
+#if XSH_THREADS_USER_GLOBAL_SETUP
+ xsh_user_global_setup(aTHX);
+#endif
+ }
+
+ XSH_LOADED_UNLOCK;
+
+#if XSH_THREADS_CLONE_NEEDS_DUP
+ MY_CXT.owner = aTHX;
+#endif
+
+#if XSH_THREADS_HINTS_CONTEXT
+ xsh_hints_local_setup(aTHX_ &MY_CXT.cxt_hints);
+#endif
+
+#if XSH_THREADS_PEEP_CONTEXT
+ xsh_peep_local_setup(aTHX_ &MY_CXT.cxt_peep);
+#endif
+
+#if XSH_THREADS_USER_LOCAL_SETUP
+# if XSH_THREADS_USER_CONTEXT
+ xsh_user_local_setup(aTHX_ &XSH_CXT);
+# else
+ xsh_user_local_setup(aTHX);
+# endif
+#endif
+
+ call_atexit(xsh_teardown, NULL);
+
+ return;
+}
+
+#if XSH_THREADSAFE
+
+static void xsh_clone(pTHX) {
+#define xsh_clone() xsh_clone(aTHX)
+ const my_cxt_t *old_cxt;
+ my_cxt_t *new_cxt;
+
+ {
+ dMY_CXT;
+ old_cxt = &MY_CXT;
+ }
+
+ {
+ int global_setup;
+
+ MY_CXT_CLONE;
+ new_cxt = &MY_CXT;
+
+ XSH_LOADED_LOCK;
+ global_setup = xsh_set_loaded_locked(new_cxt);
+ XSH_ASSERT(!global_setup);
+ XSH_LOADED_UNLOCK;
+
+#if XSH_THREADS_CLONE_NEEDS_DUP
+ new_cxt->owner = aTHX;
+#endif
+ }
+
+ {
+#if XSH_THREADS_CLONE_NEEDS_DUP
+ XSH_DUP_PARAMS_TYPE params;
+ xsh_dup_params_init(params, old_cxt->owner);
+#endif
+
+#if XSH_THREADS_PEEP_CONTEXT
+ xsh_peep_clone(aTHX_ &old_cxt->cxt_peep, &new_cxt->cxt_peep);
+#endif
+
+#if XSH_THREADS_HINTS_CONTEXT
+ xsh_hints_clone(aTHX_ &old_cxt->cxt_hints, &new_cxt->cxt_hints,
+ xsh_dup_params_ptr(params));
+#endif
+
+#if XSH_THREADS_USER_CONTEXT
+# if XSH_THREADS_USER_CLONE_NEEDS_DUP
+ xsh_user_clone(aTHX_ &old_cxt->cxt_user, &new_cxt->cxt_user,
+ xsh_dup_params_ptr(params));
+# else
+ xsh_user_clone(aTHX_ &old_cxt->cxt_user, &new_cxt->cxt_user);
+# endif
+#endif
+
+#if XSH_THREADS_CLONE_NEEDS_DUP
+ xsh_dup_params_deinit(params);
+#endif
+ }
+
+ return;
+}
+
+#endif /* XSH_THREADSAFE */
+
+#endif /* XSH_THREADS_H */
projects / perl / modules / Variable-Magic.git / commitdiff