/
marshal.c
11231 lines (9318 loc) · 316 KB
/
marshal.c
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/*
* marshal.c: Routines for marshaling complex types in P/Invoke methods.
*
* Author:
* Paolo Molaro (lupus@ximian.com)
*
* Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
* Copyright 2004-2009 Novell, Inc (http://www.novell.com)
*
*/
#include "config.h"
#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#endif
#include "object.h"
#include "loader.h"
#include "cil-coff.h"
#include "metadata/marshal.h"
#include "metadata/method-builder.h"
#include "metadata/tabledefs.h"
#include "metadata/exception.h"
#include "metadata/appdomain.h"
#include "mono/metadata/debug-helpers.h"
#include "mono/metadata/threadpool.h"
#include "mono/metadata/threads.h"
#include "mono/metadata/monitor.h"
#include "mono/metadata/metadata-internals.h"
#include "mono/metadata/domain-internals.h"
#include "mono/metadata/gc-internal.h"
#include "mono/metadata/threads-types.h"
#include "mono/metadata/string-icalls.h"
#include "mono/metadata/attrdefs.h"
#include "mono/metadata/gc-internal.h"
#include "mono/metadata/cominterop.h"
#include "mono/utils/mono-counters.h"
#include <string.h>
#include <errno.h>
/* #define DEBUG_RUNTIME_CODE */
#define OPDEF(a,b,c,d,e,f,g,h,i,j) \
a = i,
typedef enum {
MONO_MARSHAL_NONE, /* No marshalling needed */
MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
} MonoXDomainMarshalType;
enum {
#include "mono/cil/opcode.def"
LAST = 0xff
};
#undef OPDEF
struct _MonoRemotingMethods {
MonoMethod *invoke;
MonoMethod *invoke_with_check;
MonoMethod *xdomain_invoke;
MonoMethod *xdomain_dispatch;
};
typedef struct _MonoRemotingMethods MonoRemotingMethods;
/*
* This mutex protects the various marshalling related caches in MonoImage
* and a few other data structures static to this file.
* Note that when this lock is held it is not possible to take other runtime
* locks like the loader lock.
*/
#define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
#define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
static CRITICAL_SECTION marshal_mutex;
static gboolean marshal_mutex_initialized;
static guint32 last_error_tls_id;
static guint32 load_type_info_tls_id;
static void
delegate_hash_table_add (MonoDelegate *d);
static void
emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
static void
mono_struct_delete_old (MonoClass *klass, char *ptr);
void *
mono_marshal_string_to_utf16 (MonoString *s);
static void *
mono_marshal_string_to_utf16_copy (MonoString *s);
static gpointer
mono_string_to_lpstr (MonoString *string_obj);
static MonoStringBuilder *
mono_string_utf8_to_builder2 (char *text);
static MonoStringBuilder *
mono_string_utf16_to_builder2 (gunichar2 *text);
static MonoString*
mono_string_new_len_wrapper (const char *text, guint length);
static void
mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
static void
mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
static MonoObject *
mono_remoting_wrapper (MonoMethod *method, gpointer *params);
static MonoAsyncResult *
mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
static MonoObject *
mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
static void
mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
static gint32
mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
static gboolean
mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
void
mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
static MonoReflectionType *
type_from_handle (MonoType *handle);
static void
mono_marshal_set_last_error_windows (int error);
static void init_safe_handle (void);
/* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
static MonoMethod *sh_dangerous_add_ref;
static MonoMethod *sh_dangerous_release;
static void
init_safe_handle ()
{
sh_dangerous_add_ref = mono_class_get_method_from_name (
mono_defaults.safehandle_class, "DangerousAddRef", 1);
sh_dangerous_release = mono_class_get_method_from_name (
mono_defaults.safehandle_class, "DangerousRelease", 0);
}
static void
register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
{
MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
mono_register_jit_icall (func, name, sig, save);
}
static MonoMethodSignature*
signature_dup (MonoImage *image, MonoMethodSignature *sig)
{
MonoMethodSignature *res;
int sigsize;
res = mono_metadata_signature_alloc (image, sig->param_count);
sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
memcpy (res, sig, sigsize);
return res;
}
MonoMethodSignature*
mono_signature_no_pinvoke (MonoMethod *method)
{
MonoMethodSignature *sig = mono_method_signature (method);
if (sig->pinvoke) {
sig = signature_dup (method->klass->image, sig);
sig->pinvoke = FALSE;
}
return sig;
}
void
mono_marshal_init (void)
{
static gboolean module_initialized = FALSE;
if (!module_initialized) {
module_initialized = TRUE;
InitializeCriticalSection (&marshal_mutex);
marshal_mutex_initialized = TRUE;
last_error_tls_id = TlsAlloc ();
load_type_info_tls_id = TlsAlloc ();
register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
register_icall (g_free, "g_free", "void ptr", FALSE);
register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
register_icall (mono_context_get, "mono_context_get", "object", FALSE);
register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
mono_cominterop_init ();
}
}
void
mono_marshal_cleanup (void)
{
mono_cominterop_cleanup ();
TlsFree (load_type_info_tls_id);
TlsFree (last_error_tls_id);
DeleteCriticalSection (&marshal_mutex);
marshal_mutex_initialized = FALSE;
}
MonoClass *byte_array_class;
static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
static MonoMethod *method_set_context, *method_get_context;
static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
static void
mono_remoting_marshal_init (void)
{
MonoClass *klass;
static gboolean module_initialized = FALSE;
if (!module_initialized) {
klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
klass = mono_defaults.real_proxy_class;
method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
klass = mono_defaults.exception_class;
method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
klass = mono_defaults.thread_class;
method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
klass = mono_defaults.appdomain_class;
method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
module_initialized = TRUE;
}
}
gpointer
mono_delegate_to_ftnptr (MonoDelegate *delegate)
{
MonoMethod *method, *wrapper;
MonoClass *klass;
uint32_t target_handle = 0;
if (!delegate)
return NULL;
if (delegate->delegate_trampoline)
return delegate->delegate_trampoline;
klass = ((MonoObject *)delegate)->vtable->klass;
g_assert (klass->delegate);
method = delegate->method;
if (mono_method_signature (method)->pinvoke) {
const char *exc_class, *exc_arg;
gpointer ftnptr;
ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
if (!ftnptr) {
g_assert (exc_class);
mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
}
return ftnptr;
}
if (delegate->target) {
/* Produce a location which can be embedded in JITted code */
target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
}
wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
delegate->delegate_trampoline = mono_compile_method (wrapper);
// Add the delegate to the delegate hash table
delegate_hash_table_add (delegate);
/* when the object is collected, collect the dynamic method, too */
mono_object_register_finalizer ((MonoObject*)delegate);
return delegate->delegate_trampoline;
}
/*
* this hash table maps from a delegate trampoline object to a weak reference
* of the delegate. As an optimizations with a non-moving GC we store the
* object pointer itself, otherwise we use a GC handle.
*/
static GHashTable *delegate_hash_table;
static GHashTable *
delegate_hash_table_new (void) {
return g_hash_table_new (NULL, NULL);
}
static void
delegate_hash_table_remove (MonoDelegate *d)
{
#ifdef HAVE_MOVING_COLLECTOR
guint32 gchandle;
#endif
mono_marshal_lock ();
if (delegate_hash_table == NULL)
delegate_hash_table = delegate_hash_table_new ();
#ifdef HAVE_MOVING_COLLECTOR
gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
#endif
g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
mono_marshal_unlock ();
#ifdef HAVE_MOVING_COLLECTOR
mono_gchandle_free (gchandle);
#endif
}
static void
delegate_hash_table_add (MonoDelegate *d)
{
#ifdef HAVE_MOVING_COLLECTOR
guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
guint32 old_gchandle;
#endif
mono_marshal_lock ();
if (delegate_hash_table == NULL)
delegate_hash_table = delegate_hash_table_new ();
#ifdef HAVE_MOVING_COLLECTOR
old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
if (old_gchandle)
mono_gchandle_free (old_gchandle);
#else
g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
#endif
mono_marshal_unlock ();
}
MonoDelegate*
mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
{
#ifdef HAVE_MOVING_COLLECTOR
guint32 gchandle;
#endif
MonoDelegate *d;
if (ftn == NULL)
return NULL;
mono_marshal_lock ();
if (delegate_hash_table == NULL)
delegate_hash_table = delegate_hash_table_new ();
#ifdef HAVE_MOVING_COLLECTOR
gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
mono_marshal_unlock ();
if (gchandle)
d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
else
d = NULL;
#else
d = g_hash_table_lookup (delegate_hash_table, ftn);
mono_marshal_unlock ();
#endif
if (d == NULL) {
/* This is a native function, so construct a delegate for it */
static MonoClass *UnmanagedFunctionPointerAttribute;
MonoMethodSignature *sig;
MonoMethod *wrapper;
MonoMarshalSpec **mspecs;
MonoCustomAttrInfo *cinfo;
MonoReflectionUnmanagedFunctionPointerAttribute *attr;
MonoMethod *invoke = mono_get_delegate_invoke (klass);
MonoMethodPInvoke piinfo;
int i;
memset (&piinfo, 0, sizeof (piinfo));
if (!UnmanagedFunctionPointerAttribute)
UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
/* The attribute is only available in Net 2.0 */
if (UnmanagedFunctionPointerAttribute) {
/*
* The pinvoke attributes are stored in a real custom attribute so we have to
* construct it.
*/
cinfo = mono_custom_attrs_from_class (klass);
if (cinfo) {
attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
if (attr) {
piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
}
if (!cinfo->cached)
mono_custom_attrs_free (cinfo);
}
}
mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
mono_method_get_marshal_info (invoke, mspecs);
/* Freed below so don't alloc from mempool */
sig = mono_metadata_signature_dup (mono_method_signature (invoke));
sig->hasthis = 0;
wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
if (mspecs [i])
mono_metadata_free_marshal_spec (mspecs [i]);
g_free (mspecs);
g_free (sig);
d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
}
if (d->object.vtable->domain != mono_domain_get ())
mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
return d;
}
void
mono_delegate_free_ftnptr (MonoDelegate *delegate)
{
MonoJitInfo *ji;
void *ptr;
delegate_hash_table_remove (delegate);
ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
if (!delegate->target) {
/* The wrapper method is shared between delegates -> no need to free it */
return;
}
if (ptr) {
uint32_t gchandle;
void **method_data;
ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
g_assert (ji);
method_data = ((MonoMethodWrapper*)ji->method)->method_data;
/*the target gchandle is the first entry after size and the wrapper itself.*/
gchandle = GPOINTER_TO_UINT (method_data [2]);
if (gchandle)
mono_gchandle_free (gchandle);
mono_runtime_free_method (mono_object_domain (delegate), ji->method);
}
}
gpointer
mono_array_to_savearray (MonoArray *array)
{
if (!array)
return NULL;
g_assert_not_reached ();
return NULL;
}
gpointer
mono_array_to_lparray (MonoArray *array)
{
gpointer *nativeArray = NULL;
int nativeArraySize = 0;
int i = 0;
MonoClass *klass;
if (!array)
return NULL;
#ifndef DISABLE_COM
klass = array->obj.vtable->klass;
switch (klass->element_class->byval_arg.type) {
case MONO_TYPE_VOID:
g_assert_not_reached ();
break;
#ifndef DISABLE_COM
case MONO_TYPE_CLASS:
nativeArraySize = array->max_length;
nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
for(i = 0; i < nativeArraySize; ++i)
nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
return nativeArray;
#endif
case MONO_TYPE_U1:
case MONO_TYPE_BOOLEAN:
case MONO_TYPE_I1:
case MONO_TYPE_U2:
case MONO_TYPE_CHAR:
case MONO_TYPE_I2:
case MONO_TYPE_I:
case MONO_TYPE_U:
case MONO_TYPE_I4:
case MONO_TYPE_U4:
case MONO_TYPE_U8:
case MONO_TYPE_I8:
case MONO_TYPE_R4:
case MONO_TYPE_R8:
case MONO_TYPE_VALUETYPE:
case MONO_TYPE_PTR:
/* nothing to do */
break;
case MONO_TYPE_GENERICINST:
case MONO_TYPE_OBJECT:
case MONO_TYPE_ARRAY:
case MONO_TYPE_SZARRAY:
case MONO_TYPE_STRING:
default:
g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
g_assert_not_reached ();
}
#endif
return array->vector;
}
void
mono_free_lparray (MonoArray *array, gpointer* nativeArray)
{
#ifndef DISABLE_COM
MonoClass *klass;
int i = 0;
if (!array)
return;
if (!nativeArray)
return;
klass = array->obj.vtable->klass;
switch (klass->element_class->byval_arg.type) {
case MONO_TYPE_CLASS:
for(i = 0; i < array->max_length; ++i)
mono_marshal_free_ccw(nativeArray[i]);
free(nativeArray);
break;
}
#endif
}
static void
mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
{
g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
if (elclass == mono_defaults.byte_class) {
GError *error = NULL;
guint16 *ut;
glong items_written;
ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
if (!error) {
memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
g_free (ut);
}
else
g_error_free (error);
}
else
g_assert_not_reached ();
}
static void
mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
{
g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
if (elclass == mono_defaults.byte_class) {
char *as;
GError *error = NULL;
as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
if (error) {
MonoException *exc = mono_get_exception_argument ("string", error->message);
g_error_free (error);
mono_raise_exception (exc);
}
memcpy (native_arr, as, MIN (strlen (as), elnum));
g_free (as);
} else {
g_assert_not_reached ();
}
}
void
mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
{
GError *error = NULL;
guint16 *ut;
glong items_written;
int l;
if (!sb || !text)
return;
l = strlen (text);
ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
if (items_written > mono_stringbuilder_capacity (sb))
items_written = mono_stringbuilder_capacity (sb);
if (!error) {
if (! sb->str || sb->str == sb->cached_str) {
MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
sb->cached_str = NULL;
}
memcpy (mono_string_chars (sb->str), ut, items_written * 2);
sb->length = items_written;
} else
g_error_free (error);
g_free (ut);
}
MonoStringBuilder *
mono_string_utf8_to_builder2 (char *text)
{
int l;
MonoStringBuilder *sb;
static MonoClass *string_builder_class;
static MonoMethod *sb_ctor;
void *args [1];
MonoObject *exc;
if (!text)
return NULL;
if (!string_builder_class) {
MonoMethodDesc *desc;
string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
g_assert (string_builder_class);
desc = mono_method_desc_new (":.ctor(int)", FALSE);
sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
g_assert (sb_ctor);
mono_method_desc_free (desc);
}
l = strlen (text);
sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
g_assert (sb);
args [0] = &l;
mono_runtime_invoke (sb_ctor, sb, args, &exc);
g_assert (!exc);
mono_string_utf8_to_builder (sb, text);
return sb;
}
/*
* FIXME: This routine does not seem to do what it seems to do
* the @text is never copied into the string builder
*/
void
mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
{
guint32 len;
if (!sb || !text)
return;
g_assert (mono_string_chars (sb->str) == text);
for (len = 0; text [len] != 0; ++len)
;
sb->length = len;
}
MonoStringBuilder *
mono_string_utf16_to_builder2 (gunichar2 *text)
{
int len;
MonoStringBuilder *sb;
static MonoClass *string_builder_class;
static MonoMethod *sb_ctor;
void *args [1];
MonoObject *exc;
if (!text)
return NULL;
if (!string_builder_class) {
MonoMethodDesc *desc;
string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
g_assert (string_builder_class);
desc = mono_method_desc_new (":.ctor(int)", FALSE);
sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
g_assert (sb_ctor);
mono_method_desc_free (desc);
}
for (len = 0; text [len] != 0; ++len)
;
sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
g_assert (sb);
args [0] = &len;
mono_runtime_invoke (sb_ctor, sb, args, &exc);
g_assert (!exc);
sb->length = len;
memcpy (mono_string_chars (sb->str), text, len * 2);
return sb;
}
/**
* mono_string_builder_to_utf8:
* @sb: the string builder
*
* Converts to utf8 the contents of the MonoStringBuilder.
*
* Returns: a utf8 string with the contents of the StringBuilder.
*
* The return value must be released with g_free.
*/
gpointer
mono_string_builder_to_utf8 (MonoStringBuilder *sb)
{
GError *error = NULL;
gchar *tmp, *res = NULL;
if (!sb)
return NULL;
if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
/*
* The sb could have been allocated with the default capacity and be empty.
* we need to alloc a buffer of the default capacity in this case.
*/
MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
sb->cached_str = NULL;
}
tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
if (error) {
g_error_free (error);
mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
} else {
res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
memcpy (res, tmp, sb->length + 1);
g_free (tmp);
}
return res;
}
/**
* mono_string_builder_to_utf16:
* @sb: the string builder
*
* Converts to utf16 the contents of the MonoStringBuilder.
*
* Returns: a utf16 string with the contents of the StringBuilder.
*
* The return value must not be freed.
*/
gpointer
mono_string_builder_to_utf16 (MonoStringBuilder *sb)
{
if (!sb)
return NULL;
g_assert (sb->str);
/*
* The stringbuilder might not have ownership of this string. If this is
* the case, we must duplicate the string, so that we don't munge immutable
* strings
*/
if (sb->str == sb->cached_str) {
/*
* The sb could have been allocated with the default capacity and be empty.
* we need to alloc a buffer of the default capacity in this case.
*/
if (sb->str->length == 0)
MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
else
MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
sb->cached_str = NULL;
}
if (sb->length == 0)
*(mono_string_chars (sb->str)) = '\0';
return mono_string_chars (sb->str);
}
static gpointer
mono_string_to_lpstr (MonoString *s)
{
#ifdef TARGET_WIN32
char *as, *tmp;
glong len;
GError *error = NULL;
if (s == NULL)
return NULL;
if (!s->length) {
as = CoTaskMemAlloc (1);
as [0] = '\0';
return as;
}
tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
if (error) {
MonoException *exc = mono_get_exception_argument ("string", error->message);
g_error_free (error);
mono_raise_exception(exc);
return NULL;
} else {
as = CoTaskMemAlloc (len + 1);
memcpy (as, tmp, len + 1);
g_free (tmp);
return as;
}
#else
return mono_string_to_utf8 (s);
#endif
}
gpointer
mono_string_to_ansibstr (MonoString *string_obj)
{
g_error ("UnmanagedMarshal.BStr is not implemented.");
return NULL;
}
/**
* mono_string_to_byvalstr:
* @dst: Where to store the null-terminated utf8 decoded string.
* @src: the MonoString to copy.
* @size: the maximum number of bytes to copy.
*
* Copies the MonoString pointed to by @src as a utf8 string
* into @dst, it copies at most @size bytes into the destination.
*/
void
mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
{
char *s;
int len;
g_assert (dst != NULL);
g_assert (size > 0);
memset (dst, 0, size);
if (!src)
return;
s = mono_string_to_utf8 (src);
len = MIN (size, strlen (s));
if (len >= size)
len--;
memcpy (dst, s, len);
g_free (s);
}
/**
* mono_string_to_byvalwstr:
* @dst: Where to store the null-terminated utf16 decoded string.
* @src: the MonoString to copy.
* @size: the maximum number of bytes to copy.
*
* Copies the MonoString pointed to by @src as a utf16 string into
* @dst, it copies at most @size bytes into the destination (including
* a terminating 16-bit zero terminator).
*/
void
mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
{
int len;
g_assert (dst != NULL);
g_assert (size > 1);
if (!src) {
memset (dst, 0, size * 2);
return;
}
len = MIN (size, (mono_string_length (src)));
memcpy (dst, mono_string_chars (src), size * 2);
if (size <= mono_string_length (src))
len--;
*((gunichar2 *) dst + len) = 0;
}
static MonoString*
mono_string_new_len_wrapper (const char *text, guint length)
{
return mono_string_new_len (mono_domain_get (), text, length);
}
static int
mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
{
int pos;
mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
mono_mb_emit_byte (mb, CEE_LDIND_I);
mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
mono_mb_emit_byte (mb, CEE_ADD);
mono_mb_emit_byte (mb, CEE_LDIND_I);
mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
pos = mono_mb_emit_branch (mb, branch_code);
return pos;
}
static int
mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
{
int pos;