int doDumpHeapInstance(const char *BinaryFilename) {
PipeMemoryReader Pipe = createPipeMemoryReader();
pid_t pid = _fork();
switch (pid) {
case -1:
errnoAndExit("Couldn't fork child process");
case 0: { // Child:
close(PipeMemoryReader_getParentWriteFD(&Pipe));
close(PipeMemoryReader_getParentReadFD(&Pipe));
dup2(PipeMemoryReader_getChildReadFD(&Pipe), STDIN_FILENO);
dup2(PipeMemoryReader_getChildWriteFD(&Pipe), STDOUT_FILENO);
_execv(BinaryFilename, NULL);
exit(EXIT_SUCCESS);
}
default: { // Parent
close(PipeMemoryReader_getChildReadFD(&Pipe));
close(PipeMemoryReader_getChildWriteFD(&Pipe));
SwiftReflectionContextRef RC =
swift_reflection_createReflectionContextWithDataLayout(
(void *)&Pipe, PipeMemoryReader_queryDataLayout,
PipeMemoryReader_freeBytes, PipeMemoryReader_readBytes,
PipeMemoryReader_getStringLength,
PipeMemoryReader_getSymbolAddress);
uint8_t PointerSize = PipeMemoryReader_getPointerSize((void*)&Pipe);
if (PointerSize != sizeof(uintptr_t))
errorAndExit("Child process had unexpected architecture");
#if defined(__APPLE__) && defined(__MACH__)
PipeMemoryReader_receiveImages(RC, &Pipe);
#else
PipeMemoryReader_receiveReflectionInfo(RC, &Pipe);
#endif
while (1) {
InstanceKind Kind = PipeMemoryReader_receiveInstanceKind(&Pipe);
switch (Kind) {
case Object:
printf("Reflecting an object.\n");
if (!reflectHeapObject(RC, Pipe))
return EXIT_SUCCESS;
break;
case Existential: {
static const char Name[] = MANGLING_PREFIX_STR "ypD";
swift_typeref_t AnyTR
= swift_reflection_typeRefForMangledTypeName(RC,
Name, sizeof(Name)-1);
printf("Reflecting an existential.\n");
if (!reflectExistential(RC, Pipe, AnyTR))
return EXIT_SUCCESS;
break;
}
case ErrorExistential: {
static const char ErrorName[] = MANGLING_PREFIX_STR "s5Error_pD";
swift_typeref_t ErrorTR
= swift_reflection_typeRefForMangledTypeName(RC,
ErrorName, sizeof(ErrorName)-1);
printf("Reflecting an error existential.\n");
if (!reflectExistential(RC, Pipe, ErrorTR))
return EXIT_SUCCESS;
break;
}
case Closure:
printf("Reflecting a closure.\n");
if (!reflectHeapObject(RC, Pipe))
return EXIT_SUCCESS;
break;
case None:
swift_reflection_destroyReflectionContext(RC);
printf("Done.\n");
return EXIT_SUCCESS;
}
}
}
}
return EXIT_SUCCESS;
}
int doDumpHeapInstance(const char *BinaryFilename) {
PipeMemoryReader Pipe = createPipeMemoryReader();
pid_t pid = _fork();
switch (pid) {
case -1:
errorAndExit("Couldn't fork child process");
exit(EXIT_FAILURE);
case 0: { // Child:
close(PipeMemoryReader_getParentWriteFD(&Pipe));
close(PipeMemoryReader_getParentReadFD(&Pipe));
dup2(PipeMemoryReader_getChildReadFD(&Pipe), STDIN_FILENO);
dup2(PipeMemoryReader_getChildWriteFD(&Pipe), STDOUT_FILENO);
_execv(BinaryFilename, NULL);
exit(EXIT_SUCCESS);
}
default: { // Parent
close(PipeMemoryReader_getChildReadFD(&Pipe));
close(PipeMemoryReader_getChildWriteFD(&Pipe));
SwiftReflectionContextRef RC = swift_reflection_createReflectionContext(
(void*)&Pipe,
PipeMemoryReader_getPointerSize,
PipeMemoryReader_getSizeSize,
PipeMemoryReader_readBytes,
PipeMemoryReader_getStringLength,
PipeMemoryReader_getSymbolAddress);
uint8_t PointerSize = PipeMemoryReader_getPointerSize((void*)&Pipe);
if (PointerSize != sizeof(uintptr_t))
errorAndExit("Child process had unexpected architecture");
PipeMemoryReader_receiveReflectionInfo(RC, &Pipe);
while (1) {
InstanceKind Kind = PipeMemoryReader_receiveInstanceKind(&Pipe);
switch (Kind) {
case Object:
printf("Reflecting an object.\n");
if (!reflectHeapObject(RC, Pipe))
return EXIT_SUCCESS;
break;
case Existential: {
swift_typeref_t AnyTR
= swift_reflection_typeRefForMangledTypeName(RC, "_TtP_", 5);
printf("Reflecting an existential.\n");
if (!reflectExistential(RC, Pipe, AnyTR))
return EXIT_SUCCESS;
break;
}
case ErrorExistential: {
swift_typeref_t ErrorTR
= swift_reflection_typeRefForMangledTypeName(RC,
"_TtPs5Error_", 21);
printf("Reflecting an error existential.\n");
if (!reflectExistential(RC, Pipe, ErrorTR))
return EXIT_SUCCESS;
break;
}
case Closure:
printf("Reflecting a closure.\n");
if (!reflectHeapObject(RC, Pipe))
return EXIT_SUCCESS;
break;
case None:
swift_reflection_destroyReflectionContext(RC);
printf("Done.\n");
return EXIT_SUCCESS;
}
}
}
}
return EXIT_SUCCESS;
}
