dart_api_dl.c File Reference

#include "dart_api_dl.h"
#include "dart_version.h"
#include "internal/dart_api_dl_impl.h"
#include <stdio.h>
#include <string.h>

Go to the source code of this file.

Macros
#define	DART_API_DL_DEFINITIONS(name, R, A)   name##_Type name##_DL = NULL;
#define	DART_API_DL_INIT(name, R, A)
#define	DART_API_DEPRECATED_DL_INIT(name, R, A)    name##_DL = name##_Deprecated;

Typedefs
typedef void *	DartApiEntry_function

Functions
DartApiEntry_function	FindFunctionPointer (const DartApiEntry *entries, const char *name)
DART_EXPORT void	Dart_UpdateExternalSize_Deprecated (Dart_WeakPersistentHandle object, intptr_t external_size)
DART_EXPORT void	Dart_UpdateFinalizableExternalSize_Deprecated (Dart_FinalizableHandle object, Dart_Handle strong_ref_to_object, intptr_t external_allocation_size)
intptr_t	Dart_InitializeApiDL (void *data)

Macro Definition Documentation

DART_API_DEPRECATED_DL_INIT

#define DART_API_DEPRECATED_DL_INIT	(		name,
			R,
			A
	)		name##_DL = name##_Deprecated;

DART_API_DL_DEFINITIONS

#define DART_API_DL_DEFINITIONS	(		name,
			R,
			A
	)		name##_Type name##_DL = NULL;

Definition at line 14 of file dart_api_dl.c.

DART_API_DL_INIT

#define DART_API_DL_INIT	(		name,
			R,
			A
	)

Value:

  name##_DL =                                                                  \
      (name##_Type)(FindFunctionPointer(dart_api_function_pointers, #name));

Typedef Documentation

DartApiEntry_function

typedef void* DartApiEntry_function

Definition at line 21 of file dart_api_dl.c.

Function Documentation

Dart_InitializeApiDL()

intptr_t Dart_InitializeApiDL

(

void *

data

)

Definition at line 45 of file dart_api_dl.c.

                                          {
  DartApi* dart_api_data = (DartApi*)data;
 
  if (dart_api_data->major != DART_API_DL_MAJOR_VERSION) {
    // If the DartVM we're running on does not have the same version as this
    // file was compiled against, refuse to initialize. The symbols are not
    // compatible.
    return -1;
  }
  // Minor versions are allowed to be different.
  // If the DartVM has a higher minor version, it will provide more symbols
  // than we initialize here.
  // If the DartVM has a lower minor version, it will not provide all symbols.
  // In that case, we leave the missing symbols un-initialized. Those symbols
  // should not be used by the Dart and native code. The client is responsible
  // for checking the minor version number himself based on which symbols it
  // is using.
  // (If we would error out on this case, recompiling native code against a
  // newer SDK would break all uses on older SDKs, which is too strict.)
 
  const DartApiEntry* dart_api_function_pointers = dart_api_data->functions;
 
#define DART_API_DL_INIT(name, R, A)                                           \
  name##_DL =                                                                  \
      (name##_Type)(FindFunctionPointer(dart_api_function_pointers, #name));
  DART_API_ALL_DL_SYMBOLS(DART_API_DL_INIT)
#undef DART_API_DL_INIT
 
#define DART_API_DEPRECATED_DL_INIT(name, R, A)                                \
  name##_DL = name##_Deprecated;
  DART_API_DEPRECATED_DL_SYMBOLS(DART_API_DEPRECATED_DL_INIT)
#undef DART_API_DEPRECATED_DL_INIT
 
  return 0;
}

Dart_UpdateExternalSize_Deprecated()

DART_EXPORT void Dart_UpdateExternalSize_Deprecated	(	Dart_WeakPersistentHandle	object,
		intptr_t	external_size
	)

Definition at line 32 of file dart_api_dl.c.

                                                              {
  printf("Dart_UpdateExternalSize is a nop, it has been deprecated\n");
}

Dart_UpdateFinalizableExternalSize_Deprecated()

DART_EXPORT void Dart_UpdateFinalizableExternalSize_Deprecated	(	Dart_FinalizableHandle	object,
		Dart_Handle	strong_ref_to_object,
		intptr_t	external_allocation_size
	)

Definition at line 37 of file dart_api_dl.c.

                                       {
  printf("Dart_UpdateFinalizableExternalSize is a nop, "
         "it has been deprecated\n");
}

FindFunctionPointer()

DartApiEntry_function FindFunctionPointer	(	const DartApiEntry *	entries,
		const char *	name
	)

Definition at line 23 of file dart_api_dl.c.

                                                            {
  while (entries->name != NULL) {
    if (strcmp(entries->name, name) == 0) return entries->function;
    entries++;
  }
  return NULL;
}