#ifdef HAVE_LIBFFI
-#undef PACKAGE
-#undef PACKAGE_BUGREPORT
-#undef PACKAGE_NAME
-#undef PACKAGE_STRING
-#undef PACKAGE_TARNAME
-#undef PACKAGE_VERSION
-
-#include <ffi.h>
-
-#ifndef PSI_HAVE_FFI_CLOSURE_ALLOC
-# if HAVE_UNISTD_H
-# include <unistd.h>
-# endif
-# if HAVE_SYS_MMAN_H
-# include <sys/mman.h>
-# ifndef MAP_ANONYMOUS
-# define MAP_ANONYMOUS MAP_ANON
-# endif
-# endif
+#include "libffi_compat.h"
+
+#if HAVE_INT128
+static ffi_type *ffi_type_sint128;
+static ffi_type *ffi_type_uint128;
#endif
struct psi_ffi_context {
ffi_type *params[2];
};
-struct psi_ffi_impl_info {
- struct psi_context *context;
- struct psi_call_frame *frame;
-
- void *code;
- ffi_closure *closure;
-};
-
struct psi_ffi_callback_info {
struct psi_ffi_impl_info *impl_info;
struct psi_let_exp *let_exp;
struct psi_ffi_decl_info {
ffi_cif signature;
- ffi_type *rv_array;
+ struct psi_ffi_struct_info *rv_array;
ffi_type *params[1];
};
-static void *psi_ffi_closure_alloc(size_t s, void **code)
-{
-#ifdef PSI_HAVE_FFI_CLOSURE_ALLOC
- return ffi_closure_alloc(s, code);
-#elif HAVE_MMAP
- *code = mmap(NULL, s, PROT_EXEC|PROT_WRITE|PROT_READ,
- MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
- if (MAP_FAILED == *code) {
- return NULL;
- }
- return *code;
-#else
-# error "Neither ffi_closure_alloc() nor mmap() available"
-#endif
-}
+struct psi_ffi_extvar_info {
+ struct {
+ ffi_cif signature;
+ void *code;
+ ffi_closure *closure;
+ } get;
+ struct {
+ ffi_cif signature;
+ ffi_type *params[1];
+ void *code;
+ ffi_closure *closure;
+ } set;
+};
-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);
- assert(*closure != NULL);
+struct psi_ffi_impl_info {
+ struct psi_context *context;
+ struct psi_call_frame *frame;
-#if PSI_HAVE_FFI_PREP_CLOSURE_LOC
- return ffi_prep_closure_loc(*closure, sig, handler, data, *code);
+ void *code;
+ ffi_closure *closure;
+};
-#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
-}
+struct psi_ffi_struct_info {
+ ffi_type strct;
+ struct psi_plist *eles;
+};
-static void psi_ffi_closure_free(void *c)
+static inline ffi_type *psi_ffi_token_type(token_t t)
{
-#ifdef PSI_HAVE_FFI_CLOSURE_ALLOC
- ffi_closure_free(c);
-#elif HAVE_MMAP
- munmap(c, sizeof(ffi_closure));
-#endif
-}
-
-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
-
- assert(FFI_OK == rc);
-}
-
-#if HAVE_INT128
-static ffi_type *ffi_type_sint128;
-static ffi_type *ffi_type_uint128;
-#endif
-
-static inline ffi_type *psi_ffi_decl_arg_type(struct psi_decl_arg *darg);
-
-static inline ffi_type *psi_ffi_token_type(token_t t) {
switch (t) {
default:
assert(0);
return &ffi_type_pointer;
}
}
-static inline ffi_type *psi_ffi_impl_type(token_t impl_type) {
+static inline ffi_type *psi_ffi_impl_type(token_t impl_type)
+{
switch (impl_type) {
case PSI_T_BOOL:
return &ffi_type_sint8;
}
return NULL;
}
-static void psi_ffi_type_dtor(void *type) {
- ffi_type *strct = type;
-
- if (strct->elements) {
- ffi_type **ptr;
-
- for (ptr = strct->elements; *ptr; ++ptr) {
- free(*ptr);
- }
- free(strct->elements);
- }
- free(strct);
-}
-
-static size_t psi_ffi_struct_type_pad(ffi_type **els, size_t padding) {
- size_t i;
-
- for (i = 0; i < padding; ++i) {
- ffi_type *pad = pemalloc(sizeof(*pad), 1);
-
- memcpy(pad, &ffi_type_schar, sizeof(*pad));
- *els++ = pad;
- }
-
- return padding;
-}
-
-struct psi_ffi_struct_element_storage {
- ffi_type **els;
- size_t nels;
- size_t argc;
- size_t offset;
- size_t max_align;
- size_t last_arg_pos;
-};
-
-static inline void psi_ffi_struct_type_element(
- struct psi_ffi_struct_element_storage *s, struct psi_decl_arg *darg,
- ffi_type *darg_type) {
-
- ffi_type *type;
- size_t padding;
-
- if (darg->layout->pos == s->last_arg_pos) {
- /* skip bit fields */
- return;
- }
- s->last_arg_pos = darg->layout->pos;
-
- type = pemalloc(sizeof(*type), 1);
- *type = *darg_type;
-
- if (type->alignment > s->max_align) {
- s->max_align = type->alignment;
- }
-
- assert(type->size <= darg->layout->len);
- if ((padding = psi_offset_padding(darg->layout->pos - s->offset, type->alignment))) {
- if (s->nels + padding + 1 > s->argc) {
- s->argc += padding;
- s->els = safe_perealloc(s->els, (s->argc + 1), sizeof(*s->els), 0, 1);
- s->els[s->argc] = NULL;
- }
- psi_ffi_struct_type_pad(&s->els[s->nels], padding);
- s->nels += padding;
- s->offset += padding;
- }
- assert(s->offset == darg->layout->pos);
-
- s->offset = (s->offset + darg->layout->len + type->alignment - 1) & ~(type->alignment - 1);
- s->els[s->nels++] = type;
-}
-
-static ffi_type **psi_ffi_struct_type_elements(struct psi_decl_struct *strct) {
- size_t i = 0;
- struct psi_decl_arg *darg;
- struct psi_ffi_struct_element_storage s = {0};
-
- s.last_arg_pos = -1;
- s.argc = psi_plist_count(strct->args);
- s.els = pecalloc(s.argc + 1, sizeof(*s.els), 1);
-
- while (psi_plist_get(strct->args, i++, &darg)) {
- psi_ffi_struct_type_element(&s, darg, psi_ffi_decl_arg_type(darg));
- }
-
- /* apply struct alignment padding */
- s.offset = (s.offset + s.max_align - 1) & ~(s.max_align - 1);
-
- assert(s.offset <= strct->size);
- if (s.offset < strct->size) { /* WTF? */
- size_t padding = strct->size - s.offset;
-
- s.els = safe_perealloc(s.els, (padding + s.argc + 1), sizeof(*s.els), 0, 1);
- psi_ffi_struct_type_pad(&s.els[s.nels], padding);
- s.els[s.argc + padding] = NULL;
- }
- return s.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);
-
- if (real != type && type->real.def->var->pointer_level) {
- return &ffi_type_pointer;
- }
-
- switch (real->type) {
- case PSI_T_STRUCT:
- if (!real->real.strct->engine.type) {
- ffi_type *strct = pecalloc(1, sizeof(ffi_type), 1);
-
- 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_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:
- break;
- }
-
- return psi_ffi_token_type(real->type);
-}
-
-static inline ffi_type *psi_ffi_decl_func_array_type(struct psi_decl *fn) {
- struct psi_ffi_decl_info *info = fn->info;
- struct psi_ffi_struct_element_storage s = {0};
- struct psi_layout l;
- ffi_type *type;
- size_t i;
-
- if (info->rv_array) {
- return info->rv_array;
- }
-
- s.last_arg_pos = -1;
- s.argc = fn->func->var->array_size;
- s.els = pecalloc(s.argc + 1, sizeof(*s.els), 1);
-
- info->rv_array = pecalloc(1, sizeof(ffi_type), 1);
- info->rv_array->type = FFI_TYPE_STRUCT;
- info->rv_array->size = 0;
- info->rv_array->elements = s.els;
-
- l.pos = 0;
- if (fn->func->var->pointer_level > 1) {
- l.len = SIZEOF_VOID_P;
- type = &ffi_type_pointer;
- } else {
- l.len = psi_decl_type_get_size(fn->func->type, NULL);
- type = psi_ffi_decl_type(fn->func->type);
- }
-
- assert(!fn->func->layout);
- fn->func->layout = &l;
- for (i = 0; i < fn->func->var->array_size; ++i) {
- psi_ffi_struct_type_element(&s, fn->func, type);
- info->rv_array->elements = s.els;
- l.pos += l.len;
- }
- fn->func->layout = NULL;
-
- return info->rv_array;
-}
-
-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 ffi_type *psi_ffi_decl_func_type(struct psi_decl *fn) {
- struct psi_decl_arg *darg = fn->func;
-
- if (darg->var->pointer_level) {
- if (darg->var->array_size) {
- /* mimic a struct resembling the array return type of fn */
- return psi_ffi_decl_func_array_type(fn);
- }
- return &ffi_type_pointer;
- } else {
- return psi_ffi_decl_type(darg->type);
- }
+static void psi_ffi_type_free(ffi_type **typ_ptr)
+{
+ pefree(*typ_ptr, 1);
}
static inline ffi_abi psi_ffi_abi(zend_string *convention) {
return FFI_DEFAULT_ABI;
}
-static inline struct psi_ffi_decl_info *psi_ffi_decl_init(struct psi_decl *decl) {
- if (!decl->info) {
- int rc;
- size_t i, c = psi_plist_count(decl->args);
- struct psi_decl_arg *arg;
- struct psi_ffi_decl_info *info = pecalloc(1, sizeof(*info) + 2 * c * sizeof(void *), 1);
-
- decl->info = info;
-
- for (i = 0; psi_plist_get(decl->args, i, &arg); ++i) {
- info->params[i] = psi_ffi_decl_arg_type(arg);
- }
- info->params[c] = NULL;
-
- rc = ffi_prep_cif(&info->signature, psi_ffi_abi(decl->abi->convention),
- c, psi_ffi_decl_func_type(decl), info->params);
-
- if (FFI_OK != rc) {
- free(info);
- decl->info = NULL;
- }
- }
-
- return decl->info;
-}
-
-static inline void psi_ffi_decl_dtor(struct psi_decl *decl) {
- if (decl->info) {
- struct psi_ffi_decl_info *info = decl->info;
-
- if (info->rv_array) {
- psi_ffi_type_dtor(info->rv_array);
- }
- free(decl->info);
- decl->info = NULL;
- }
-}
-
static void psi_ffi_handler(ffi_cif *sig, void *result, void **args, void *data)
{
struct psi_impl *impl = data;
psi_call_frame_do_callback(cb_info->impl_info->frame, &cb_data);
}
-static inline void psi_ffi_callback_init(struct psi_ffi_impl_info *impl_info,
- struct psi_let_exp *let_exp) {
- struct psi_ffi_callback_info *cb_info;
- struct psi_ffi_decl_info *decl_info;
- struct psi_let_callback *cb;
- struct psi_let_func *fn = NULL;
- ffi_status rc;
-
- switch (let_exp->kind) {
- case PSI_LET_CALLBACK:
- cb = let_exp->data.callback;
- if (cb->decl->info) {
- decl_info = cb->decl->info;
- } else {
- decl_info = psi_ffi_decl_init(cb->decl);
- }
-
- cb_info = pecalloc(1, sizeof(*cb_info), 1);
- cb_info->impl_info = impl_info;
- cb_info->let_exp = let_exp;
- rc = psi_ffi_prep_closure(&cb_info->closure, &cb_info->code,
- &decl_info->signature, psi_ffi_callback, cb_info);
+static bool psi_ffi_load()
+{
+#if HAVE_INT128
+ ffi_type *i128, *u128;
- if (FFI_OK != rc) {
- free(cb_info);
- break;
- }
- cb->info = cb_info;
+ i128 = pecalloc(1, 3*sizeof(ffi_type), 1);
+ i128->type = FFI_TYPE_STRUCT;
+ i128->size = 0;
+ i128->elements = (ffi_type **) (i128 + 1);
+ i128->elements[0] = &ffi_type_sint64;
+ i128->elements[1] = &ffi_type_sint64;
- assert(!cb->decl->sym);
- cb->decl->sym = cb_info->code;
- fn = cb->func;
- /* no break */
+ ffi_type_sint128 = i128;
- case PSI_LET_FUNC:
- if (!fn) {
- fn = let_exp->data.func;
- }
- if (fn->inner) {
- size_t i = 0;
- struct psi_let_exp *inner_let;
+ u128 = pecalloc(1, 3*sizeof(ffi_type), 1);
+ u128->type = FFI_TYPE_STRUCT;
+ u128->size = 0;
+ u128->elements = (ffi_type **) (u128 + 1);
+ u128->elements[0] = &ffi_type_uint64;
+ u128->elements[1] = &ffi_type_uint64;
- while (psi_plist_get(fn->inner, i++, &inner_let)) {
- psi_ffi_callback_init(impl_info, inner_let);
- }
- }
- break;
- default:
- break;
- }
+ ffi_type_uint128 = u128;
+#endif
+ return true;
}
-static inline void psi_ffi_callback_dtor(struct psi_let_exp *let_exp) {
- struct psi_let_callback *cb;
- struct psi_let_func *fn = NULL;
-
- switch (let_exp->kind) {
- case PSI_LET_CALLBACK:
- cb = let_exp->data.callback;
+static void psi_ffi_free()
+{
+#if HAVE_INT128
+ free(ffi_type_sint128);
+ free(ffi_type_uint128);
+#endif
+}
- psi_ffi_decl_dtor(cb->decl);
+static bool psi_ffi_init(struct psi_context *C)
+{
+ ffi_status rc;
+ struct psi_ffi_context *context = pecalloc(1, sizeof(*context), 1);
- if (cb->info) {
- struct psi_ffi_callback_info *info = cb->info;
+ context->params[0] = &ffi_type_pointer;
+ context->params[1] = &ffi_type_pointer;
+ rc = ffi_prep_cif(&context->signature, FFI_DEFAULT_ABI, 2, &ffi_type_void,
+ context->params);
- if (info->closure) {
- psi_ffi_closure_free(info->closure);
- }
- free(info);
- cb->info = NULL;
- }
- fn = cb->func;
- /* no break */
- case PSI_LET_FUNC:
- if (!fn) {
- fn = let_exp->data.func;
- }
+ if (FFI_OK != rc) {
+ pefree(context, 1);
+ return false;
+ }
- if (fn->inner) {
- size_t i = 0;
- struct psi_let_exp *cb;
+ C->context = context;
+ return true;
+}
- while (psi_plist_get(fn->inner, i++, &cb)) {
- psi_ffi_callback_dtor(cb);
- }
- }
- break;
- default:
- break;
+static void psi_ffi_dtor(struct psi_context *C)
+{
+ if (C->context) {
+ pefree(C->context, 1);
+ C->context = NULL;
}
}
-static inline struct psi_ffi_impl_info *psi_ffi_impl_init(struct psi_impl *impl,
- struct psi_context *C) {
- struct psi_ffi_context *context = C->context;
- struct psi_ffi_impl_info *info = pecalloc(1, sizeof(*info), 1);
- struct psi_let_stmt *let;
- ffi_status rc;
- size_t l = 0;
+static bool psi_ffi_composite_init(struct psi_context *C,
+ struct psi_decl_arg *darg)
+{
+ struct psi_ffi_struct_info *info;
- info->context = C;
+ if (darg->engine.type) {
+ return true;
+ }
- rc = psi_ffi_prep_closure(&info->closure, &info->code,
- &context->signature, psi_ffi_handler, impl);
+ info = pecalloc(1, sizeof(*info), 1);
+ info->eles = psi_plist_init((psi_plist_dtor) psi_ffi_type_free);
- if (FFI_OK != rc) {
- free(info);
- return NULL;
- }
+ psi_context_composite_type_elements(C, darg, &info->eles);
- while (psi_plist_get(impl->stmts.let, l++, &let)) {
- psi_ffi_callback_init(info, let->exp);
+ /* add terminating NULL; libffi structs do not have an element count */
+ {
+ void *null_ptr = NULL;
+ info->eles = psi_plist_add(info->eles, &null_ptr);
}
- return impl->info = info;
-}
+ info->strct.type = FFI_TYPE_STRUCT;
+ info->strct.alignment = 0;
+ info->strct.size = 0;
+ info->strct.elements = (ffi_type **) psi_plist_eles(info->eles);
-static inline void psi_ffi_impl_dtor(struct psi_impl *impl) {
- struct psi_ffi_impl_info *info = impl->info;
- struct psi_let_stmt *let;
- size_t j = 0;
+ darg->engine.info = info;
+ darg->engine.type = &info->strct;
- while (psi_plist_get(impl->stmts.let, j++, &let)) {
- psi_ffi_callback_dtor(let->exp);
- }
+ return true;
+}
+
+static void psi_ffi_composite_dtor(struct psi_context *C,
+ struct psi_decl_arg *darg)
+{
+ struct psi_ffi_struct_info *info = darg->engine.info;
if (info) {
- if (info->closure) {
- psi_ffi_closure_free(info->closure);
+ darg->engine.info = NULL;
+ darg->engine.type = NULL;
+
+ struct psi_plist *args = NULL;
+ struct psi_decl_type *dtype = psi_decl_type_get_real(darg->type);
+
+ if (dtype->type == PSI_T_STRUCT) {
+ args = dtype->real.strct->args;
+ } else if (dtype->type == PSI_T_UNION) {
+ args = dtype->real.unn->args;
}
- free(info);
- impl->info = NULL;
+
+ size_t i = 0;
+ struct psi_decl_arg *tmp;
+
+ while (psi_plist_get(args, i++, &tmp)) {
+ psi_ffi_composite_dtor(C, tmp);
+ }
+
+ psi_plist_free(info->eles);
+ pefree(info, 1);
}
}
psi_decl_extvar_set(evar, args[0]);
}
-struct psi_ffi_extvar_info {
- struct {
- ffi_cif signature;
- void *code;
- ffi_closure *closure;
- } get;
- struct {
- ffi_cif signature;
- ffi_type *params[1];
- void *code;
- ffi_closure *closure;
- } set;
-};
+static bool psi_ffi_decl_init(struct psi_context *, struct psi_decl *);
-static inline ffi_status psi_ffi_extvar_init(struct psi_decl_extvar *evar) {
+static bool psi_ffi_extvar_init(struct psi_context *C,
+ struct psi_decl_extvar *evar)
+{
struct psi_ffi_extvar_info *info = pecalloc(1, sizeof(*info), 1);
ffi_status rc;
evar->info = info;
- psi_ffi_decl_init(evar->getter);
- psi_ffi_decl_init(evar->setter);
+ psi_ffi_decl_init(C, evar->getter);
+ psi_ffi_decl_init(C, evar->setter);
rc = ffi_prep_cif(&info->get.signature, FFI_DEFAULT_ABI, 0,
- psi_ffi_decl_func_type(evar->getter), NULL);
+ psi_context_decl_arg_call_type(C, evar->getter->func), NULL);
if (FFI_OK != rc) {
- return rc;
+ return false;
}
rc = psi_ffi_prep_closure(&info->get.closure, &info->get.code,
&info->get.signature, psi_ffi_extvar_get, evar);
if (FFI_OK != rc) {
- return rc;
+ return false;
}
- info->set.params[0] = psi_ffi_decl_arg_type(evar->arg);
+ info->set.params[0] = psi_context_decl_arg_call_type(C, evar->arg);
rc = ffi_prep_cif(&info->set.signature, FFI_DEFAULT_ABI, 1,
&ffi_type_void, info->set.params);
if (FFI_OK != rc) {
- return rc;
+ return false;
}
rc = psi_ffi_prep_closure(&info->set.closure, &info->set.code,
&info->set.signature, psi_ffi_extvar_set, evar);
if (FFI_OK != rc) {
- return rc;
+ return false;
}
evar->getter->sym = info->get.code;
evar->setter->sym = info->set.code;
- return FFI_OK;
+ return true;
}
-static inline void psi_ffi_extvar_dtor(struct psi_decl_extvar *evar) {
+static void psi_ffi_extvar_dtor(struct psi_context *C,
+ struct psi_decl_extvar *evar) {
if (evar->info) {
- free(evar->info);
+ pefree(evar->info, 1);
evar->info = NULL;
}
}
-static inline struct psi_ffi_context *psi_ffi_context_init(struct psi_ffi_context *L) {
- ffi_status rc;
+static bool psi_ffi_decl_init(struct psi_context *C, struct psi_decl *decl)
+{
+ if (!decl->info) {
+ int rc;
+ size_t i, c = psi_plist_count(decl->args);
+ struct psi_decl_arg *arg;
+ struct psi_ffi_decl_info *info = pecalloc(1,
+ sizeof(*info) + 2 * c * sizeof(void *), 1);
- if (!L) {
- L = pemalloc(sizeof(*L), 1);
- }
- memset(L, 0, sizeof(*L));
+ decl->info = info;
- L->params[0] = &ffi_type_pointer;
- L->params[1] = &ffi_type_pointer;
- rc = ffi_prep_cif(&L->signature, FFI_DEFAULT_ABI, 2, &ffi_type_void, L->params);
- assert(rc == FFI_OK);
+ for (i = 0; psi_plist_get(decl->args, i, &arg); ++i) {
+ info->params[i] = psi_context_decl_arg_call_type(C, arg);
+ }
+ info->params[c] = NULL;
- return L;
-}
+ rc = ffi_prep_cif(&info->signature, psi_ffi_abi(decl->abi->convention),
+ c, psi_context_decl_arg_call_type(C, decl->func), info->params);
-static inline void psi_ffi_context_free(struct psi_ffi_context **L) {
- if (*L) {
- free(*L);
- *L = NULL;
+ if (FFI_OK != rc) {
+ pefree(info, 1);
+ decl->info = NULL;
+ return false;
+ }
}
+
+ return true;
}
-static void psi_ffi_init(struct psi_context *C)
+static void psi_ffi_decl_dtor(struct psi_context *C,
+ struct psi_decl *decl)
{
- C->context = psi_ffi_context_init(NULL);
+ if (decl->info) {
+ pefree(decl->info, 1);
+ decl->info = NULL;
+ }
}
-static void psi_ffi_dtor(struct psi_context *C)
+static bool psi_ffi_impl_init(struct psi_context *C,
+ struct psi_impl *impl, zif_handler *zh)
{
- if (C->decls) {
- size_t i = 0;
- struct psi_decl *decl;
+ struct psi_ffi_context *context = C->context;
+ struct psi_ffi_impl_info *info = pecalloc(1, sizeof(*info), 1);
+ ffi_status rc;
- while (psi_plist_get(C->decls, i++, &decl)) {
- psi_ffi_decl_dtor(decl);
- }
+ impl->info = info;
+ info->context = C;
- }
- if (C->vars) {
- size_t i = 0;
- struct psi_decl_extvar *evar;
+ rc = psi_ffi_prep_closure(&info->closure, &info->code,
+ &context->signature, psi_ffi_handler, impl);
- while (psi_plist_get(C->vars, i++, &evar)) {
- psi_ffi_extvar_dtor(evar);
- }
+ if (FFI_OK != rc) {
+ goto failure;
}
- if (C->impls) {
- size_t i = 0;
- struct psi_impl *impl;
- while (psi_plist_get(C->impls, i++, &impl)) {
- psi_ffi_impl_dtor(impl);
- }
- }
- psi_ffi_context_free((void *) &C->context);
-}
+ *zh = info->code;
+ return true;
+failure: ;
+ impl->info = NULL;
+ free(info);
+ return false;
+}
-static zend_function_entry *psi_ffi_compile(struct psi_context *C)
+static void psi_ffi_impl_dtor(struct psi_context *C, struct psi_impl *impl)
{
- size_t i = 0, d = 0, v = 0, nf = 0;
- struct psi_impl *impl;
- struct psi_decl *decl;
- struct psi_decl_extvar *evar;
- zend_function_entry *zfe = NULL;
-
- while (psi_plist_get(C->vars, v++, &evar)) {
- if (FFI_OK == psi_ffi_extvar_init(evar)) {
- /* */
+ struct psi_ffi_impl_info *info = impl->info;
+
+ if (info) {
+ if (info->closure) {
+ psi_ffi_closure_free(info->closure);
}
+ free(info);
+ impl->info = NULL;
}
+}
- if (C->impls) {
- zfe = pecalloc(psi_plist_count(C->impls) + 1, sizeof(*zfe), 1);
-
- while (psi_plist_get(C->impls, i++, &impl)) {
- zend_function_entry *zf = &zfe[nf];
-
- if (!impl->decl) {
- continue;
- }
- if (!psi_ffi_decl_init(impl->decl)) {
- continue;
- }
- if (!psi_ffi_impl_init(impl, C)) {
- continue;
- }
-
- zf->fname = impl->func->name->val + (impl->func->name->val[0] == '\\');
- zf->handler = ((struct psi_ffi_impl_info *) impl->info)->code;
- zf->num_args = psi_plist_count(impl->func->args);
- zf->arg_info = psi_internal_arginfo(impl);
- ++nf;
- }
+static bool psi_ffi_cb_init(struct psi_context *C,
+ struct psi_let_exp *exp, struct psi_impl *impl)
+{
+ struct psi_ffi_callback_info *cb_info;
+ struct psi_ffi_decl_info *decl_info;
+ ffi_status rc;
+
+ assert(exp->kind == PSI_LET_CALLBACK);
+
+ if (!psi_ffi_decl_init(C, exp->data.callback->decl)) {
+ return false;
}
- while (psi_plist_get(C->decls, d++, &decl)) {
- if (decl->info) {
- continue;
- }
+ cb_info = pecalloc(1, sizeof(*cb_info), 1);
+ cb_info->impl_info = impl->info;
+ cb_info->let_exp = exp;
- psi_ffi_decl_init(decl);
+ decl_info = exp->data.callback->decl->info;
+ rc = psi_ffi_prep_closure(&cb_info->closure, &cb_info->code,
+ &decl_info->signature, psi_ffi_callback, cb_info);
+
+ if (FFI_OK != rc) {
+ free(cb_info);
+ return false;
}
- return zfe;
+ assert(!exp->data.callback->decl->sym);
+ exp->data.callback->info = cb_info;
+ exp->data.callback->decl->sym = cb_info->code;
+
+ return true;
+}
+
+static void psi_ffi_cb_dtor(struct psi_context *C,
+ struct psi_let_exp *let_exp, struct psi_impl *impl)
+{
+ assert(let_exp->kind == PSI_LET_CALLBACK);
+
+ psi_ffi_decl_dtor(C, let_exp->data.callback->decl);
+
+ if (let_exp->data.callback->info) {
+ struct psi_ffi_callback_info *info = let_exp->data.callback->info;
+
+ if (info->closure) {
+ psi_ffi_closure_free(info->closure);
+ }
+ pefree(info, 1);
+ let_exp->data.callback->info = NULL;
+ }
}
-static inline void psi_ffi_call_ex(struct psi_call_frame *frame) {
+static void psi_ffi_call(struct psi_call_frame *frame) {
struct psi_decl *decl = psi_call_frame_get_decl(frame);
struct psi_impl *impl = psi_call_frame_get_impl(frame);
struct psi_ffi_decl_info *decl_info = decl->info;
}
}
-static inline void psi_ffi_call_va(struct psi_call_frame *frame) {
+static void psi_ffi_call_va(struct psi_call_frame *frame) {
ffi_cif signature;
struct psi_call_frame *prev;
struct psi_decl *decl = psi_call_frame_get_decl(frame);
efree(param_types);
}
-static void psi_ffi_call(struct psi_call_frame *frame) {
- if (psi_call_frame_num_var_args(frame)) {
- psi_ffi_call_va(frame);
- } else {
- psi_ffi_call_ex(frame);
- }
+static void *psi_ffi_typeof_impl(struct psi_context *C, token_t impl_type)
+{
+ return psi_ffi_impl_type(impl_type);
}
-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 void *psi_ffi_typeof_decl(struct psi_context *C, token_t decl_type)
+{
+ return psi_ffi_token_type(decl_type);
}
-static ZEND_RESULT_CODE psi_ffi_load()
+static void *psi_ffi_copyof_type(struct psi_context *C, void *orig_type)
{
-#if HAVE_INT128
- ffi_type *i128, *u128;
+ ffi_type *type = pemalloc(sizeof(*type), 1);
- i128 = pecalloc(1, 3*sizeof(ffi_type), 1);
- i128->type = FFI_TYPE_STRUCT;
- i128->size = 0;
- i128->elements = (ffi_type **) (i128 + 1);
- i128->elements[0] = &ffi_type_sint64;
- i128->elements[1] = &ffi_type_sint64;
-
- ffi_type_sint128 = i128;
-
- u128 = pecalloc(1, 3*sizeof(ffi_type), 1);
- u128->type = FFI_TYPE_STRUCT;
- u128->size = 0;
- u128->elements = (ffi_type **) (u128 + 1);
- u128->elements[0] = &ffi_type_uint64;
- u128->elements[1] = &ffi_type_uint64;
-
- ffi_type_uint128 = u128;
-#endif
- return SUCCESS;
+ *type = *(ffi_type *) orig_type;
+ return type;
}
-static void psi_ffi_free()
+static void psi_ffi_layoutof_type(struct psi_context *C, void *orig_type,
+ struct psi_layout *l)
{
-#if HAVE_INT128
- free(ffi_type_sint128);
- free(ffi_type_uint128);
-#endif
+ ffi_type *type = orig_type;
+
+ if (!type->size || !type->alignment) {
+ ffi_cif tmp;
+ ffi_prep_cif(&tmp, FFI_DEFAULT_ABI, 0, type, NULL);
+ }
+
+ l->pos = type->alignment;
+ l->len = type->size;
}
static struct psi_context_ops ops = {
+ "libffi",
psi_ffi_load,
psi_ffi_free,
psi_ffi_init,
psi_ffi_dtor,
- psi_ffi_compile,
+ psi_ffi_composite_init,
+ psi_ffi_composite_dtor,
+ psi_ffi_extvar_init,
+ psi_ffi_extvar_dtor,
+ psi_ffi_decl_init,
+ psi_ffi_decl_dtor,
+ psi_ffi_impl_init,
+ psi_ffi_impl_dtor,
+ psi_ffi_cb_init,
+ psi_ffi_cb_dtor,
psi_ffi_call,
- psi_ffi_query,
+ psi_ffi_call_va,
+ psi_ffi_typeof_impl,
+ psi_ffi_typeof_decl,
+ psi_ffi_copyof_type,
+ psi_ffi_layoutof_type,
};
struct psi_context_ops *psi_libffi_ops(void)
projects / m6w6 / ext-psi / blobdiff