+/*******************************************************************************
+ Copyright (c) 2016, Michael Wallner <mike@php.net>.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*******************************************************************************/
+
+#include "php_psi_stdinc.h"
+#include "context.h"
+#include "call.h"
#include "php.h"
-#include "php_psi.h"
-#include "libffi.h"
+
+#ifdef HAVE_LIBFFI
#undef PACKAGE
#undef PACKAGE_BUGREPORT
}
return *code;
#else
- return NULL;
+# error "Neither ffi_closure_alloc() nor mmap() available"
+#endif
+}
+
+static ffi_status psi_ffi_prep_closure(ffi_closure **closure, void **code, ffi_cif *sig, void (*handler)(ffi_cif*,void*,void**,void*), void *data) {
+ *closure = psi_ffi_closure_alloc(sizeof(ffi_closure), code);
+ ZEND_ASSERT(*closure != NULL);
+
+#if PSI_HAVE_FFI_PREP_CLOSURE_LOC
+ return ffi_prep_closure_loc(*closure, sig, handler, data, *code);
+
+#elif PSI_HAVE_FFI_PREP_CLOSURE
+ return ffi_prep_closure(*code, sig, handler, data);
+#else
+# error "Neither ffi_prep_closure() nor ffi_prep_closure_loc() is available"
#endif
}
#endif
}
-static void psi_ffi_handler(ffi_cif *signature, void *_result, void **_args, void *_data);
+static void psi_ffi_prep_va(ffi_cif *base, ffi_cif *signature, size_t argc, size_t va_count,
+ ffi_type **param_types) {
+ ffi_status rc;
+
+#ifdef PSI_HAVE_FFI_PREP_CIF_VAR
+ rc = ffi_prep_cif_var(signature, base->abi, argc, argc + va_count,
+ base->rtype, param_types);
+#else
+ /* FIXME: test in config.m4; assume we can just call anyway */
+ rc = ffi_prep_cif(signature, base->abi, argc + va_count, base->rtype, param_types);
+#endif
+
+ ZEND_ASSERT(FFI_OK == rc);
+}
+
+static inline ffi_type *psi_ffi_decl_arg_type(struct psi_decl_arg *darg);
+
+struct psi_ffi_context {
+ ffi_cif signature;
+ ffi_type *params[2];
+};
+
+struct psi_ffi_call {
+ struct psi_context *context;
+ union {
+ struct {
+ struct psi_impl *impl;
+ struct psi_call_frame *frame;
+ } fn;
+ struct {
+ struct psi_let_exp *let_exp;
+ struct psi_ffi_call *impl_call;
+ } cb;
+ } impl;
+ void *code;
+ ffi_closure *closure;
+ ffi_cif signature;
+ ffi_type *params[1]; /* [type1, type2, ... ] */
+};
+
+static void psi_ffi_handler(ffi_cif *sig, void *result, void **args, void *data)
+{
+ struct psi_ffi_call *call = data;
+
+ psi_context_call(call->context, *(zend_execute_data **)args[0], *(zval **)args[1], call->impl.fn.impl);
+}
+
+static void psi_ffi_callback(ffi_cif *sig, void *result, void **args, void *data)
+{
+ struct psi_ffi_call *call = data, *impl_call = call->impl.cb.impl_call;
+
+ if (impl_call->impl.fn.frame) {
+ struct psi_call_frame_callback cbdata;
+
+ cbdata.cb = call->impl.cb.let_exp;
+ cbdata.argc = sig->nargs;
+ cbdata.argv = args;
+ cbdata.rval = result;
+
+ psi_call_frame_do_callback(impl_call->impl.fn.frame, &cbdata);
+ } else {
+ assert(0);
+ }
+}
static inline ffi_abi psi_ffi_abi(const char *convention) {
return FFI_DEFAULT_ABI;
}
-static inline ffi_type *psi_ffi_type(token_t t) {
+
+static inline struct psi_ffi_call *psi_ffi_call_alloc(struct psi_context *C, struct psi_decl *decl) {
+ int rc;
+ size_t i, c = psi_plist_count(decl->args);
+ struct psi_ffi_call *call = calloc(1, sizeof(*call) + 2 * c * sizeof(void *));
+ struct psi_decl_arg *arg;
+
+ decl->info = call;
+ call->context = C;
+
+ for (i = 0; psi_plist_get(decl->args, i, &arg); ++i) {
+ call->params[i] = psi_ffi_decl_arg_type(arg);
+ }
+ call->params[c] = NULL;
+
+ rc = ffi_prep_cif(&call->signature, psi_ffi_abi(decl->abi->convention),
+ c, psi_ffi_decl_arg_type(decl->func), call->params);
+ ZEND_ASSERT(FFI_OK == rc);
+
+ return call;
+}
+
+static inline ffi_status psi_ffi_call_init_closure(struct psi_context *C, struct psi_ffi_call *call, struct psi_impl *impl) {
+ struct psi_ffi_context *context = C->context;
+
+ call->impl.fn.impl = impl;
+ return psi_ffi_prep_closure(&call->closure, &call->code, &context->signature, psi_ffi_handler, call);
+}
+
+static inline ffi_status psi_ffi_call_init_callback_closure(struct psi_context *C,
+ struct psi_ffi_call *call, struct psi_ffi_call *impl_call,
+ struct psi_let_exp *cb) {
+ call->impl.cb.let_exp = cb;
+ call->impl.cb.impl_call = impl_call;
+ return psi_ffi_prep_closure(&call->closure, &call->code, &call->signature, psi_ffi_callback, call);
+}
+
+static inline void psi_ffi_call_free(struct psi_ffi_call *call) {
+ if (call->closure) {
+ psi_ffi_closure_free(call->closure);
+ }
+ free(call);
+}
+
+static inline ffi_type *psi_ffi_token_type(token_t t) {
switch (t) {
default:
ZEND_ASSERT(0);
/* no break */
case PSI_T_VOID:
return &ffi_type_void;
- case PSI_T_SINT8:
+ case PSI_T_INT8:
return &ffi_type_sint8;
case PSI_T_UINT8:
return &ffi_type_uint8;
- case PSI_T_SINT16:
+ case PSI_T_INT16:
return &ffi_type_sint16;
case PSI_T_UINT16:
return &ffi_type_uint16;
- case PSI_T_SINT32:
+ case PSI_T_INT32:
return &ffi_type_sint32;
case PSI_T_UINT32:
return &ffi_type_uint32;
- case PSI_T_SINT64:
+ case PSI_T_INT64:
return &ffi_type_sint64;
case PSI_T_UINT64:
return &ffi_type_uint64;
case PSI_T_BOOL:
return &ffi_type_uchar;
- case PSI_T_CHAR:
- return &ffi_type_schar;
- case PSI_T_SHORT:
- return &ffi_type_sshort;
case PSI_T_INT:
+ case PSI_T_ENUM:
return &ffi_type_sint;
case PSI_T_LONG:
return &ffi_type_slong;
return &ffi_type_float;
case PSI_T_DOUBLE:
return &ffi_type_double;
+#ifdef HAVE_LONG_DOUBLE
+ case PSI_T_LONG_DOUBLE:
+ return &ffi_type_longdouble;
+#endif
+ case PSI_T_POINTER:
+ case PSI_T_FUNCTION:
+ return &ffi_type_pointer;
}
}
-static inline ffi_type *psi_ffi_decl_type(decl_type *type) {
- return psi_ffi_type(real_decl_type(type)->type);
-}
-static inline ffi_type *psi_ffi_decl_arg_type(decl_arg *darg) {
- if (darg->var->pointer_level) {
+static inline ffi_type *psi_ffi_impl_type(token_t impl_type) {
+ switch (impl_type) {
+ case PSI_T_BOOL:
+ return &ffi_type_sint8;
+ case PSI_T_INT:
+ return &ffi_type_sint64;
+ case PSI_T_STRING:
return &ffi_type_pointer;
- } else {
- return psi_ffi_decl_type(darg->type);
+ case PSI_T_FLOAT:
+ case PSI_T_DOUBLE:
+ return &ffi_type_double;
+ EMPTY_SWITCH_DEFAULT_CASE();
}
+ return NULL;
}
+static void psi_ffi_struct_type_dtor(void *type) {
+ ffi_type *strct = type;
-typedef struct PSI_LibffiContext {
- ffi_cif signature;
- ffi_type *params[2];
- struct {
- struct PSI_LibffiData **list;
- size_t count;
- } data;
-} PSI_LibffiContext;
-
-typedef struct PSI_LibffiData {
- PSI_LibffiContext *context;
- impl *impl;
- zend_internal_arg_info *arginfo;
- void *code;
- ffi_closure *closure;
- ffi_cif signature;
- ffi_type *params[1];
-} PSI_LibffiData;
+ if (strct->elements) {
+ ffi_type **ptr;
-static inline PSI_LibffiData *PSI_LibffiDataAlloc(PSI_LibffiContext *context, impl *impl) {
- ffi_status rc;
- size_t i, c = impl->decl->args ? impl->decl->args->count : 0;
- PSI_LibffiData *data = malloc(sizeof(*data) + c * sizeof(ffi_type *));
-
- data->context = context;
- data->impl = impl;
- data->arginfo = psi_internal_arginfo(impl);
- for (i = 0; i < c; ++i) {
- data->params[i] = psi_ffi_decl_arg_type(impl->decl->args->args[i]);
+ for (ptr = strct->elements; *ptr; ++ptr) {
+ free(*ptr);
+ }
+ free(strct->elements);
}
- data->params[c] = NULL;
-
- rc = ffi_prep_cif(
- &data->signature,
- psi_ffi_abi(data->impl->decl->abi->convention),
- c,
- psi_ffi_decl_arg_type(data->impl->decl->func),
- data->params);
- ZEND_ASSERT(FFI_OK == rc);
+ free(strct);
+}
- data->closure = psi_ffi_closure_alloc(sizeof(ffi_closure), &data->code);
- ZEND_ASSERT(data->closure != NULL);
-#if PSI_HAVE_FFI_PREP_CLOSURE_LOC
- rc = ffi_prep_closure_loc(
- data->closure,
- &context->signature,
- psi_ffi_handler,
- data,
- data->code);
- ZEND_ASSERT(FFI_OK == rc);
-#elif PSI_HAVE_FFI_PREP_CLOSURE
- rc = ffi_prep_closure(data->code, &context->signature, psi_ffi_handler, data);
- ZEND_ASSERT(FFI_OK == rc);
-#else
-# error "Neither ffi_prep_closure() nor ffi_prep_closure_loc() available"
-#endif
+static size_t psi_ffi_struct_type_pad(ffi_type **els, size_t padding) {
+ size_t i;
- context->data.list = realloc(context->data.list, ++context->data.count * sizeof(*context->data.list));
- context->data.list[context->data.count-1] = data;
+ for (i = 0; i < padding; ++i) {
+ ffi_type *pad = malloc(sizeof(*pad));
- return data;
+ memcpy(pad, &ffi_type_schar, sizeof(*pad));
+ *els++ = pad;
+ }
+
+ return padding;
}
-static inline void PSI_LibffiDataFree(PSI_LibffiData *data) {
- psi_ffi_closure_free(data->closure);
- free(data->arginfo);
- free(data);
+static ffi_type **psi_ffi_struct_type_elements(struct psi_decl_struct *strct) {
+ size_t i = 0, argc = psi_plist_count(strct->args), nels = 0, offset = 0, maxalign = 0;
+ ffi_type **els = calloc(argc + 1, sizeof(*els));
+ struct psi_decl_arg *darg;
+
+ while (psi_plist_get(strct->args, i++, &darg)) {
+ ffi_type *type = malloc(sizeof(*type));
+ size_t padding;
+
+ *type = *psi_ffi_decl_arg_type(darg);
+
+ if (type->alignment > maxalign) {
+ maxalign = type->alignment;
+ }
+
+ assert(type->size == darg->layout->len);
+ if ((padding = psi_offset_padding(darg->layout->pos - offset, type->alignment))) {
+ if (nels + padding + 1 > argc) {
+ argc += padding;
+ els = realloc(els, (argc + 1) * sizeof(*els));
+ els[argc] = NULL;
+ }
+ psi_ffi_struct_type_pad(&els[nels], padding);
+ nels += padding;
+ offset += padding;
+ }
+ assert(offset == darg->layout->pos);
+
+ offset = (offset + darg->layout->len + type->alignment - 1) & ~(type->alignment - 1);
+ els[nels++] = type;
+ }
+
+ /* apply struct alignment padding */
+ offset = (offset + maxalign - 1) & ~(maxalign - 1);
+
+ assert(offset <= strct->size);
+ if (offset < strct->size) {
+ psi_ffi_struct_type_pad(&els[nels], strct->size - offset);
+ }
+
+ return els;
}
+static inline ffi_type *psi_ffi_decl_type(struct psi_decl_type *type) {
+ struct psi_decl_type *real = psi_decl_type_get_real(type);
-static inline PSI_LibffiContext *PSI_LibffiContextInit(PSI_LibffiContext *L) {
+ switch (real->type) {
+ case PSI_T_STRUCT:
+ if (!real->real.strct->engine.type) {
+ ffi_type *strct = calloc(1, sizeof(ffi_type));
+
+ strct->type = FFI_TYPE_STRUCT;
+ strct->size = 0;
+ strct->elements = psi_ffi_struct_type_elements(real->real.strct);
+
+ real->real.strct->engine.type = strct;
+ real->real.strct->engine.dtor = psi_ffi_struct_type_dtor;
+ }
+
+ return real->real.strct->engine.type;
+
+ case PSI_T_UNION:
+ {
+ struct psi_decl_arg *arg;
+ psi_plist_get(real->real.unn->args, 0, &arg);
+ return psi_ffi_decl_arg_type(arg);
+ }
+
+ default:
+ return psi_ffi_token_type(real->type);
+ }
+}
+static inline ffi_type *psi_ffi_decl_arg_type(struct psi_decl_arg *darg) {
+ if (darg->var->pointer_level) {
+ return &ffi_type_pointer;
+ } else {
+ return psi_ffi_decl_type(darg->type);
+ }
+}
+
+
+static inline struct psi_ffi_context *psi_ffi_context_init(struct psi_ffi_context *L) {
ffi_status rc;
if (!L) {
return L;
}
-static inline void PSI_LibffiContextDtor(PSI_LibffiContext *L) {
- size_t i;
-
- for (i = 0; i < L->data.count; ++i) {
- PSI_LibffiDataFree(L->data.list[i]);
- }
- if (L->data.list) {
- free(L->data.list);
- }
-}
-
-static inline void PSI_LibffiContextFree(PSI_LibffiContext **L) {
+static inline void psi_ffi_context_free(struct psi_ffi_context **L) {
if (*L) {
- PSI_LibffiContextDtor(*L);
free(*L);
*L = NULL;
}
}
-static void psi_ffi_handler(ffi_cif *_sig, void *_result, void **_args, void *_data)
+static void psi_ffi_init(struct psi_context *C)
{
- PSI_LibffiData *data = _data;
- size_t i;
- void **arg_prm = NULL;
- impl_val ret_val;
+ C->context = psi_ffi_context_init(NULL);
+}
- if (SUCCESS != psi_parse_args(*(zend_execute_data **)_args[0], data->impl)) {
- return;
- }
+static inline void psi_ffi_destroy_callbacks(struct psi_context *C, struct psi_let_exp *let_exp) {
+ struct psi_let_callback *cb;
+ struct psi_let_func *fn = NULL;
- if (data->impl->decl->args) {
- arg_prm = malloc(data->impl->decl->args->count * sizeof(*arg_prm));
+ switch (let_exp->kind) {
+ case PSI_LET_CALLBACK:
+ cb = let_exp->data.callback;
- for (i = 0; i < data->impl->decl->args->count; ++i) {
- decl_arg *darg = data->impl->decl->args->args[i];
+ if (cb->decl && cb->decl->info) {
+ psi_ffi_call_free(cb->decl->info);
+ }
+ fn = cb->func;
+ /* no break */
+ case PSI_LET_FUNC:
+ if (!fn) {
+ fn = let_exp->data.func;
+ }
+
+ if (fn->inner) {
+ size_t i = 0;
+ struct psi_let_exp *cb;
- arg_prm[i] = psi_do_let(darg);
+ while (psi_plist_get(fn->inner, i++, &cb)) {
+ psi_ffi_destroy_callbacks(C, cb);
+ }
}
+ break;
+ default:
+ break;
}
+}
- ffi_call(&data->signature, FFI_FN(data->impl->decl->dlptr), &ret_val, arg_prm);
+static void psi_ffi_dtor(struct psi_context *C)
+{
+ if (C->decls) {
+ size_t i = 0;
+ struct psi_decl *decl;
+
+ while (psi_plist_get(C->decls, i++, &decl)) {
+ if (decl->info) {
+ psi_ffi_call_free(decl->info);
+ }
+ }
- psi_do_return(data->impl, &ret_val, *(zval **)_args[1]);
+ }
+ if (C->impls) {
+ size_t i = 0;
+ struct psi_impl *impl;
- for (i = 0; i < data->impl->stmts->set.count; ++i) {
- set_stmt *set = data->impl->stmts->set.list[i];
+ while (psi_plist_get(C->impls, i++, &impl)) {
+ size_t j = 0;
+ struct psi_let_stmt *let;
- if (set->arg->_zv) {
- psi_do_set(set->arg->_zv, set->val->func, set->val->vars);
+ while (psi_plist_get(impl->stmts.let, j++, &let)) {
+ psi_ffi_destroy_callbacks(C, let->exp);
+ }
}
}
+ psi_ffi_context_free((void *) &C->context);
+}
- for (i = 0; i < data->impl->stmts->fre.count; ++i) {
- free_stmt *fre = data->impl->stmts->fre.list[i];
+static inline void psi_ffi_compile_callbacks(struct psi_context *C,
+ struct psi_ffi_call *impl_call, struct psi_let_exp *let_exp) {
+ struct psi_ffi_call *call;
+ struct psi_let_callback *cb;
+ struct psi_let_func *fn = NULL;
+
+ switch (let_exp->kind) {
+ case PSI_LET_CALLBACK:
+ cb = let_exp->data.callback;
+ if ((call = psi_ffi_call_alloc(C, cb->decl))) {
+ if (FFI_OK != psi_ffi_call_init_callback_closure(C, call, impl_call, let_exp)) {
+ psi_ffi_call_free(call);
+ break;
+ }
+
+ cb->decl->sym = call->code;
+ }
+ fn = cb->func;
+ /* no break */
+ case PSI_LET_FUNC:
+ if (!fn) {
+ fn = let_exp->data.func;
+ }
+ if (fn->inner) {
+ size_t i = 0;
+ struct psi_let_exp *inner_let;
- psi_do_free(fre);
+ while (psi_plist_get(fn->inner, i++, &inner_let)) {
+ psi_ffi_compile_callbacks(C, impl_call, inner_let);
+ }
+ }
+ break;
+ default:
+ break;
}
+}
- psi_do_clean(data->impl);
+static zend_function_entry *psi_ffi_compile(struct psi_context *C)
+{
+ size_t i = 0, d = 0, nf = 0;
+ struct psi_impl *impl;
+ struct psi_decl *decl;
+ zend_function_entry *zfe;
- if (arg_prm) {
- free(arg_prm);
+ if (!C->impls) {
+ return NULL;
}
-}
-static void psi_ffi_init(PSI_Context *C)
-{
- C->context = PSI_LibffiContextInit(NULL);
-}
+ zfe = calloc(psi_plist_count(C->impls) + 1, sizeof(*zfe));
-static void psi_ffi_dtor(PSI_Context *C)
-{
- PSI_LibffiContextFree((void *) &C->context);
-}
+ while (psi_plist_get(C->impls, i++, &impl)) {
+ size_t l = 0;
+ struct psi_let_stmt *let;
+ struct psi_ffi_call *call;
+ zend_function_entry *zf = &zfe[nf];
-static zend_function_entry *psi_ffi_compile(PSI_Context *C, PSI_Data *D)
-{
- size_t i, j = 0;
- zend_function_entry *zfe = calloc(D->impls->count + 1, sizeof(*zfe));
- PSI_LibffiContext *ctx = C->context;
+ if (!impl->decl) {
+ continue;
+ }
+ if (!(call = psi_ffi_call_alloc(C, impl->decl))) {
+ continue;
+ }
+ if (FFI_OK != psi_ffi_call_init_closure(C, call, impl)) {
+ psi_ffi_call_free(call);
+ continue;
+ }
- for (i = 0; i < D->impls->count; ++i) {
- zend_function_entry *zf = &zfe[j];
- PSI_LibffiData *data;
+ zf->fname = impl->func->name + (impl->func->name[0] == '\\');
+ zf->handler = call->code;
+ zf->num_args = psi_plist_count(impl->func->args);
+ zf->arg_info = psi_internal_arginfo(impl);
+ ++nf;
- if (!D->impls->list[i]->decl) {
+ while (psi_plist_get(impl->stmts.let, l++, &let)) {
+ psi_ffi_compile_callbacks(C, call, let->exp);
+ }
+ }
+
+ while (psi_plist_get(C->decls, d++, &decl)) {
+ if (decl->info) {
continue;
}
- data = PSI_LibffiDataAlloc(ctx, D->impls->list[i]);
- zf->fname = D->impls->list[i]->func->name + (D->impls->list[i]->func->name[0] == '\\');
- zf->num_args = D->impls->list[i]->func->args->count;
- zf->handler = data->code;
- zf->arg_info = data->arginfo;
- ++j;
+ psi_ffi_call_alloc(C, decl);
}
return zfe;
}
-static PSI_ContextOps ops = {
+static void psi_ffi_call(struct psi_context *C, struct psi_call_frame *frame, struct psi_decl *decl, void *rval, void **args) {
+ struct psi_ffi_call *info = decl->info;
+ struct psi_call_frame *prev = info->impl.fn.frame;
+
+ info->impl.fn.frame = frame;
+ ffi_call(&info->signature, FFI_FN(decl->sym), rval, args);
+ info->impl.fn.frame = prev;
+}
+
+static void psi_ffi_call_va(struct psi_context *C, struct psi_call_frame *frame, struct psi_decl *decl, void *rval, void **args,
+ size_t va_count, void **va_types) {
+ ffi_cif signature;
+ struct psi_ffi_call *info = decl->info;
+ struct psi_call_frame *prev = info->impl.fn.frame;
+ size_t argc = psi_plist_count(decl->args);
+ ffi_type **param_types = ecalloc(argc + va_count + 1, sizeof(ffi_type *));
+
+ memcpy(param_types, info->params, argc * sizeof(ffi_type *));
+ memcpy(param_types + argc, va_types, va_count * sizeof(ffi_type *));
+
+ psi_ffi_prep_va(&info->signature, &signature, argc, va_count, param_types);
+ info->impl.fn.frame = frame;
+ ffi_call(&signature, FFI_FN(decl->sym), rval, args);
+ info->impl.fn.frame = prev;
+ efree(param_types);
+}
+
+static void *psi_ffi_query(struct psi_context *C, enum psi_context_query q, void *arg) {
+ switch (q) {
+ case PSI_CONTEXT_QUERY_SELF:
+ return "ffi";
+ case PSI_CONTEXT_QUERY_TYPE:
+ return psi_ffi_impl_type(*(token_t *) arg);
+ }
+ return NULL;
+}
+
+static struct psi_context_ops ops = {
psi_ffi_init,
psi_ffi_dtor,
psi_ffi_compile,
+ psi_ffi_call,
+ psi_ffi_call_va,
+ psi_ffi_query,
};
-PSI_ContextOps *PSI_Libffi(void)
+struct psi_context_ops *psi_libffi_ops(void)
{
return &ops;
}
+
+#endif /* HAVE_LIBFFI */