| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ipc/ipc_message_utils.h" |
| |
| #include "base/files/file_path.h" |
| #include "base/json/json_writer.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/strings/nullable_string16.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "base/time/time.h" |
| #include "base/values.h" |
| #include "ipc/ipc_channel_handle.h" |
| |
| #if defined(OS_POSIX) |
| #include "ipc/file_descriptor_set_posix.h" |
| #elif defined(OS_WIN) |
| #include <tchar.h> |
| #endif |
| |
| namespace IPC { |
| |
| namespace { |
| |
| const int kMaxRecursionDepth = 100; |
| |
| template<typename CharType> |
| void LogBytes(const std::vector<CharType>& data, std::string* out) { |
| #if defined(OS_WIN) |
| // Windows has a GUI for logging, which can handle arbitrary binary data. |
| for (size_t i = 0; i < data.size(); ++i) |
| out->push_back(data[i]); |
| #else |
| // On POSIX, we log to stdout, which we assume can display ASCII. |
| static const size_t kMaxBytesToLog = 100; |
| for (size_t i = 0; i < std::min(data.size(), kMaxBytesToLog); ++i) { |
| if (isprint(data[i])) |
| out->push_back(data[i]); |
| else |
| out->append( |
| base::StringPrintf("[%02X]", static_cast<unsigned char>(data[i]))); |
| } |
| if (data.size() > kMaxBytesToLog) { |
| out->append(base::StringPrintf( |
| " and %u more bytes", |
| static_cast<unsigned>(data.size() - kMaxBytesToLog))); |
| } |
| #endif |
| } |
| |
| bool ReadValue(const Message* m, PickleIterator* iter, base::Value** value, |
| int recursion); |
| |
| void WriteValue(Message* m, const base::Value* value, int recursion) { |
| bool result; |
| if (recursion > kMaxRecursionDepth) { |
| LOG(WARNING) << "Max recursion depth hit in WriteValue."; |
| return; |
| } |
| |
| m->WriteInt(value->GetType()); |
| |
| switch (value->GetType()) { |
| case base::Value::TYPE_NULL: |
| break; |
| case base::Value::TYPE_BOOLEAN: { |
| bool val; |
| result = value->GetAsBoolean(&val); |
| DCHECK(result); |
| WriteParam(m, val); |
| break; |
| } |
| case base::Value::TYPE_INTEGER: { |
| int val; |
| result = value->GetAsInteger(&val); |
| DCHECK(result); |
| WriteParam(m, val); |
| break; |
| } |
| case base::Value::TYPE_DOUBLE: { |
| double val; |
| result = value->GetAsDouble(&val); |
| DCHECK(result); |
| WriteParam(m, val); |
| break; |
| } |
| case base::Value::TYPE_STRING: { |
| std::string val; |
| result = value->GetAsString(&val); |
| DCHECK(result); |
| WriteParam(m, val); |
| break; |
| } |
| case base::Value::TYPE_BINARY: { |
| const base::BinaryValue* binary = |
| static_cast<const base::BinaryValue*>(value); |
| m->WriteData(binary->GetBuffer(), static_cast<int>(binary->GetSize())); |
| break; |
| } |
| case base::Value::TYPE_DICTIONARY: { |
| const base::DictionaryValue* dict = |
| static_cast<const base::DictionaryValue*>(value); |
| |
| WriteParam(m, static_cast<int>(dict->size())); |
| |
| for (base::DictionaryValue::Iterator it(*dict); !it.IsAtEnd(); |
| it.Advance()) { |
| WriteParam(m, it.key()); |
| WriteValue(m, &it.value(), recursion + 1); |
| } |
| break; |
| } |
| case base::Value::TYPE_LIST: { |
| const base::ListValue* list = static_cast<const base::ListValue*>(value); |
| WriteParam(m, static_cast<int>(list->GetSize())); |
| for (base::ListValue::const_iterator it = list->begin(); |
| it != list->end(); ++it) { |
| WriteValue(m, *it, recursion + 1); |
| } |
| break; |
| } |
| } |
| } |
| |
| // Helper for ReadValue that reads a DictionaryValue into a pre-allocated |
| // object. |
| bool ReadDictionaryValue(const Message* m, PickleIterator* iter, |
| base::DictionaryValue* value, int recursion) { |
| int size; |
| if (!ReadParam(m, iter, &size)) |
| return false; |
| |
| for (int i = 0; i < size; ++i) { |
| std::string key; |
| base::Value* subval; |
| if (!ReadParam(m, iter, &key) || |
| !ReadValue(m, iter, &subval, recursion + 1)) |
| return false; |
| value->SetWithoutPathExpansion(key, subval); |
| } |
| |
| return true; |
| } |
| |
| // Helper for ReadValue that reads a ReadListValue into a pre-allocated |
| // object. |
| bool ReadListValue(const Message* m, PickleIterator* iter, |
| base::ListValue* value, int recursion) { |
| int size; |
| if (!ReadParam(m, iter, &size)) |
| return false; |
| |
| for (int i = 0; i < size; ++i) { |
| base::Value* subval; |
| if (!ReadValue(m, iter, &subval, recursion + 1)) |
| return false; |
| value->Set(i, subval); |
| } |
| |
| return true; |
| } |
| |
| bool ReadValue(const Message* m, PickleIterator* iter, base::Value** value, |
| int recursion) { |
| if (recursion > kMaxRecursionDepth) { |
| LOG(WARNING) << "Max recursion depth hit in ReadValue."; |
| return false; |
| } |
| |
| int type; |
| if (!ReadParam(m, iter, &type)) |
| return false; |
| |
| switch (type) { |
| case base::Value::TYPE_NULL: |
| *value = base::Value::CreateNullValue(); |
| break; |
| case base::Value::TYPE_BOOLEAN: { |
| bool val; |
| if (!ReadParam(m, iter, &val)) |
| return false; |
| *value = new base::FundamentalValue(val); |
| break; |
| } |
| case base::Value::TYPE_INTEGER: { |
| int val; |
| if (!ReadParam(m, iter, &val)) |
| return false; |
| *value = new base::FundamentalValue(val); |
| break; |
| } |
| case base::Value::TYPE_DOUBLE: { |
| double val; |
| if (!ReadParam(m, iter, &val)) |
| return false; |
| *value = new base::FundamentalValue(val); |
| break; |
| } |
| case base::Value::TYPE_STRING: { |
| std::string val; |
| if (!ReadParam(m, iter, &val)) |
| return false; |
| *value = new base::StringValue(val); |
| break; |
| } |
| case base::Value::TYPE_BINARY: { |
| const char* data; |
| int length; |
| if (!m->ReadData(iter, &data, &length)) |
| return false; |
| *value = base::BinaryValue::CreateWithCopiedBuffer(data, length); |
| break; |
| } |
| case base::Value::TYPE_DICTIONARY: { |
| scoped_ptr<base::DictionaryValue> val(new base::DictionaryValue()); |
| if (!ReadDictionaryValue(m, iter, val.get(), recursion)) |
| return false; |
| *value = val.release(); |
| break; |
| } |
| case base::Value::TYPE_LIST: { |
| scoped_ptr<base::ListValue> val(new base::ListValue()); |
| if (!ReadListValue(m, iter, val.get(), recursion)) |
| return false; |
| *value = val.release(); |
| break; |
| } |
| default: |
| return false; |
| } |
| |
| return true; |
| } |
| |
| } // namespace |
| |
| // ----------------------------------------------------------------------------- |
| |
| LogData::LogData() |
| : routing_id(0), |
| type(0), |
| sent(0), |
| receive(0), |
| dispatch(0) { |
| } |
| |
| LogData::~LogData() { |
| } |
| |
| void ParamTraits<bool>::Log(const param_type& p, std::string* l) { |
| l->append(p ? "true" : "false"); |
| } |
| |
| void ParamTraits<unsigned char>::Write(Message* m, const param_type& p) { |
| m->WriteBytes(&p, sizeof(param_type)); |
| } |
| |
| bool ParamTraits<unsigned char>::Read(const Message* m, PickleIterator* iter, |
| param_type* r) { |
| const char* data; |
| if (!m->ReadBytes(iter, &data, sizeof(param_type))) |
| return false; |
| memcpy(r, data, sizeof(param_type)); |
| return true; |
| } |
| |
| void ParamTraits<unsigned char>::Log(const param_type& p, std::string* l) { |
| l->append(base::UintToString(p)); |
| } |
| |
| void ParamTraits<unsigned short>::Write(Message* m, const param_type& p) { |
| m->WriteBytes(&p, sizeof(param_type)); |
| } |
| |
| bool ParamTraits<unsigned short>::Read(const Message* m, PickleIterator* iter, |
| param_type* r) { |
| const char* data; |
| if (!m->ReadBytes(iter, &data, sizeof(param_type))) |
| return false; |
| memcpy(r, data, sizeof(param_type)); |
| return true; |
| } |
| |
| void ParamTraits<unsigned short>::Log(const param_type& p, std::string* l) { |
| l->append(base::UintToString(p)); |
| } |
| |
| void ParamTraits<int>::Log(const param_type& p, std::string* l) { |
| l->append(base::IntToString(p)); |
| } |
| |
| void ParamTraits<unsigned int>::Log(const param_type& p, std::string* l) { |
| l->append(base::UintToString(p)); |
| } |
| |
| void ParamTraits<long>::Log(const param_type& p, std::string* l) { |
| l->append(base::Int64ToString(static_cast<int64>(p))); |
| } |
| |
| void ParamTraits<unsigned long>::Log(const param_type& p, std::string* l) { |
| l->append(base::Uint64ToString(static_cast<uint64>(p))); |
| } |
| |
| void ParamTraits<long long>::Log(const param_type& p, std::string* l) { |
| l->append(base::Int64ToString(static_cast<int64>(p))); |
| } |
| |
| void ParamTraits<unsigned long long>::Log(const param_type& p, std::string* l) { |
| l->append(base::Uint64ToString(p)); |
| } |
| |
| void ParamTraits<float>::Log(const param_type& p, std::string* l) { |
| l->append(base::StringPrintf("%e", p)); |
| } |
| |
| void ParamTraits<double>::Write(Message* m, const param_type& p) { |
| m->WriteBytes(reinterpret_cast<const char*>(&p), sizeof(param_type)); |
| } |
| |
| bool ParamTraits<double>::Read(const Message* m, PickleIterator* iter, |
| param_type* r) { |
| const char *data; |
| if (!m->ReadBytes(iter, &data, sizeof(*r))) { |
| NOTREACHED(); |
| return false; |
| } |
| memcpy(r, data, sizeof(param_type)); |
| return true; |
| } |
| |
| void ParamTraits<double>::Log(const param_type& p, std::string* l) { |
| l->append(base::StringPrintf("%e", p)); |
| } |
| |
| |
| void ParamTraits<std::string>::Log(const param_type& p, std::string* l) { |
| l->append(p); |
| } |
| |
| void ParamTraits<std::wstring>::Log(const param_type& p, std::string* l) { |
| l->append(WideToUTF8(p)); |
| } |
| |
| #if !defined(WCHAR_T_IS_UTF16) |
| void ParamTraits<string16>::Log(const param_type& p, std::string* l) { |
| l->append(UTF16ToUTF8(p)); |
| } |
| #endif |
| |
| void ParamTraits<std::vector<char> >::Write(Message* m, const param_type& p) { |
| if (p.empty()) { |
| m->WriteData(NULL, 0); |
| } else { |
| m->WriteData(&p.front(), static_cast<int>(p.size())); |
| } |
| } |
| |
| bool ParamTraits<std::vector<char> >::Read(const Message* m, |
| PickleIterator* iter, |
| param_type* r) { |
| const char *data; |
| int data_size = 0; |
| if (!m->ReadData(iter, &data, &data_size) || data_size < 0) |
| return false; |
| r->resize(data_size); |
| if (data_size) |
| memcpy(&r->front(), data, data_size); |
| return true; |
| } |
| |
| void ParamTraits<std::vector<char> >::Log(const param_type& p, std::string* l) { |
| LogBytes(p, l); |
| } |
| |
| void ParamTraits<std::vector<unsigned char> >::Write(Message* m, |
| const param_type& p) { |
| if (p.empty()) { |
| m->WriteData(NULL, 0); |
| } else { |
| m->WriteData(reinterpret_cast<const char*>(&p.front()), |
| static_cast<int>(p.size())); |
| } |
| } |
| |
| bool ParamTraits<std::vector<unsigned char> >::Read(const Message* m, |
| PickleIterator* iter, |
| param_type* r) { |
| const char *data; |
| int data_size = 0; |
| if (!m->ReadData(iter, &data, &data_size) || data_size < 0) |
| return false; |
| r->resize(data_size); |
| if (data_size) |
| memcpy(&r->front(), data, data_size); |
| return true; |
| } |
| |
| void ParamTraits<std::vector<unsigned char> >::Log(const param_type& p, |
| std::string* l) { |
| LogBytes(p, l); |
| } |
| |
| void ParamTraits<std::vector<bool> >::Write(Message* m, const param_type& p) { |
| WriteParam(m, static_cast<int>(p.size())); |
| // Cast to bool below is required because libc++'s |
| // vector<bool>::const_reference is different from bool, and we want to avoid |
| // writing an extra specialization of ParamTraits for it. |
| for (size_t i = 0; i < p.size(); i++) |
| WriteParam(m, static_cast<bool>(p[i])); |
| } |
| |
| bool ParamTraits<std::vector<bool> >::Read(const Message* m, |
| PickleIterator* iter, |
| param_type* r) { |
| int size; |
| // ReadLength() checks for < 0 itself. |
| if (!m->ReadLength(iter, &size)) |
| return false; |
| r->resize(size); |
| for (int i = 0; i < size; i++) { |
| bool value; |
| if (!ReadParam(m, iter, &value)) |
| return false; |
| (*r)[i] = value; |
| } |
| return true; |
| } |
| |
| void ParamTraits<std::vector<bool> >::Log(const param_type& p, std::string* l) { |
| for (size_t i = 0; i < p.size(); ++i) { |
| if (i != 0) |
| l->push_back(' '); |
| LogParam(static_cast<bool>(p[i]), l); |
| } |
| } |
| |
| void ParamTraits<base::DictionaryValue>::Write(Message* m, |
| const param_type& p) { |
| WriteValue(m, &p, 0); |
| } |
| |
| bool ParamTraits<base::DictionaryValue>::Read( |
| const Message* m, PickleIterator* iter, param_type* r) { |
| int type; |
| if (!ReadParam(m, iter, &type) || type != base::Value::TYPE_DICTIONARY) |
| return false; |
| |
| return ReadDictionaryValue(m, iter, r, 0); |
| } |
| |
| void ParamTraits<base::DictionaryValue>::Log(const param_type& p, |
| std::string* l) { |
| std::string json; |
| base::JSONWriter::Write(&p, &json); |
| l->append(json); |
| } |
| |
| #if defined(OS_POSIX) |
| void ParamTraits<base::FileDescriptor>::Write(Message* m, const param_type& p) { |
| const bool valid = p.fd >= 0; |
| WriteParam(m, valid); |
| |
| if (valid) { |
| if (!m->WriteFileDescriptor(p)) |
| NOTREACHED(); |
| } |
| } |
| |
| bool ParamTraits<base::FileDescriptor>::Read(const Message* m, |
| PickleIterator* iter, |
| param_type* r) { |
| bool valid; |
| if (!ReadParam(m, iter, &valid)) |
| return false; |
| |
| if (!valid) { |
| r->fd = -1; |
| r->auto_close = false; |
| return true; |
| } |
| |
| return m->ReadFileDescriptor(iter, r); |
| } |
| |
| void ParamTraits<base::FileDescriptor>::Log(const param_type& p, |
| std::string* l) { |
| if (p.auto_close) { |
| l->append(base::StringPrintf("FD(%d auto-close)", p.fd)); |
| } else { |
| l->append(base::StringPrintf("FD(%d)", p.fd)); |
| } |
| } |
| #endif // defined(OS_POSIX) |
| |
| void ParamTraits<base::FilePath>::Write(Message* m, const param_type& p) { |
| p.WriteToPickle(m); |
| } |
| |
| bool ParamTraits<base::FilePath>::Read(const Message* m, |
| PickleIterator* iter, |
| param_type* r) { |
| return r->ReadFromPickle(iter); |
| } |
| |
| void ParamTraits<base::FilePath>::Log(const param_type& p, std::string* l) { |
| ParamTraits<base::FilePath::StringType>::Log(p.value(), l); |
| } |
| |
| void ParamTraits<base::ListValue>::Write(Message* m, const param_type& p) { |
| WriteValue(m, &p, 0); |
| } |
| |
| bool ParamTraits<base::ListValue>::Read( |
| const Message* m, PickleIterator* iter, param_type* r) { |
| int type; |
| if (!ReadParam(m, iter, &type) || type != base::Value::TYPE_LIST) |
| return false; |
| |
| return ReadListValue(m, iter, r, 0); |
| } |
| |
| void ParamTraits<base::ListValue>::Log(const param_type& p, std::string* l) { |
| std::string json; |
| base::JSONWriter::Write(&p, &json); |
| l->append(json); |
| } |
| |
| void ParamTraits<base::NullableString16>::Write(Message* m, |
| const param_type& p) { |
| WriteParam(m, p.string()); |
| WriteParam(m, p.is_null()); |
| } |
| |
| bool ParamTraits<base::NullableString16>::Read(const Message* m, |
| PickleIterator* iter, |
| param_type* r) { |
| string16 string; |
| if (!ReadParam(m, iter, &string)) |
| return false; |
| bool is_null; |
| if (!ReadParam(m, iter, &is_null)) |
| return false; |
| *r = base::NullableString16(string, is_null); |
| return true; |
| } |
| |
| void ParamTraits<base::NullableString16>::Log(const param_type& p, |
| std::string* l) { |
| l->append("("); |
| LogParam(p.string(), l); |
| l->append(", "); |
| LogParam(p.is_null(), l); |
| l->append(")"); |
| } |
| |
| void ParamTraits<base::PlatformFileInfo>::Write(Message* m, |
| const param_type& p) { |
| WriteParam(m, p.size); |
| WriteParam(m, p.is_directory); |
| WriteParam(m, p.last_modified.ToDoubleT()); |
| WriteParam(m, p.last_accessed.ToDoubleT()); |
| WriteParam(m, p.creation_time.ToDoubleT()); |
| } |
| |
| bool ParamTraits<base::PlatformFileInfo>::Read(const Message* m, |
| PickleIterator* iter, |
| param_type* p) { |
| double last_modified; |
| double last_accessed; |
| double creation_time; |
| bool result = |
| ReadParam(m, iter, &p->size) && |
| ReadParam(m, iter, &p->is_directory) && |
| ReadParam(m, iter, &last_modified) && |
| ReadParam(m, iter, &last_accessed) && |
| ReadParam(m, iter, &creation_time); |
| if (result) { |
| p->last_modified = base::Time::FromDoubleT(last_modified); |
| p->last_accessed = base::Time::FromDoubleT(last_accessed); |
| p->creation_time = base::Time::FromDoubleT(creation_time); |
| } |
| return result; |
| } |
| |
| void ParamTraits<base::PlatformFileInfo>::Log(const param_type& p, |
| std::string* l) { |
| l->append("("); |
| LogParam(p.size, l); |
| l->append(","); |
| LogParam(p.is_directory, l); |
| l->append(","); |
| LogParam(p.last_modified.ToDoubleT(), l); |
| l->append(","); |
| LogParam(p.last_accessed.ToDoubleT(), l); |
| l->append(","); |
| LogParam(p.creation_time.ToDoubleT(), l); |
| l->append(")"); |
| } |
| |
| void ParamTraits<base::Time>::Write(Message* m, const param_type& p) { |
| ParamTraits<int64>::Write(m, p.ToInternalValue()); |
| } |
| |
| bool ParamTraits<base::Time>::Read(const Message* m, PickleIterator* iter, |
| param_type* r) { |
| int64 value; |
| if (!ParamTraits<int64>::Read(m, iter, &value)) |
| return false; |
| *r = base::Time::FromInternalValue(value); |
| return true; |
| } |
| |
| void ParamTraits<base::Time>::Log(const param_type& p, std::string* l) { |
| ParamTraits<int64>::Log(p.ToInternalValue(), l); |
| } |
| |
| void ParamTraits<base::TimeDelta>::Write(Message* m, const param_type& p) { |
| ParamTraits<int64>::Write(m, p.ToInternalValue()); |
| } |
| |
| bool ParamTraits<base::TimeDelta>::Read(const Message* m, |
| PickleIterator* iter, |
| param_type* r) { |
| int64 value; |
| bool ret = ParamTraits<int64>::Read(m, iter, &value); |
| if (ret) |
| *r = base::TimeDelta::FromInternalValue(value); |
| |
| return ret; |
| } |
| |
| void ParamTraits<base::TimeDelta>::Log(const param_type& p, std::string* l) { |
| ParamTraits<int64>::Log(p.ToInternalValue(), l); |
| } |
| |
| void ParamTraits<base::TimeTicks>::Write(Message* m, const param_type& p) { |
| ParamTraits<int64>::Write(m, p.ToInternalValue()); |
| } |
| |
| bool ParamTraits<base::TimeTicks>::Read(const Message* m, |
| PickleIterator* iter, |
| param_type* r) { |
| int64 value; |
| bool ret = ParamTraits<int64>::Read(m, iter, &value); |
| if (ret) |
| *r = base::TimeTicks::FromInternalValue(value); |
| |
| return ret; |
| } |
| |
| void ParamTraits<base::TimeTicks>::Log(const param_type& p, std::string* l) { |
| ParamTraits<int64>::Log(p.ToInternalValue(), l); |
| } |
| |
| void ParamTraits<IPC::ChannelHandle>::Write(Message* m, const param_type& p) { |
| #if defined(OS_WIN) |
| // On Windows marshalling pipe handle is not supported. |
| DCHECK(p.pipe.handle == NULL); |
| #endif // defined (OS_WIN) |
| WriteParam(m, p.name); |
| #if defined(OS_POSIX) |
| WriteParam(m, p.socket); |
| #endif |
| } |
| |
| bool ParamTraits<IPC::ChannelHandle>::Read(const Message* m, |
| PickleIterator* iter, |
| param_type* r) { |
| return ReadParam(m, iter, &r->name) |
| #if defined(OS_POSIX) |
| && ReadParam(m, iter, &r->socket) |
| #endif |
| ; |
| } |
| |
| void ParamTraits<IPC::ChannelHandle>::Log(const param_type& p, |
| std::string* l) { |
| l->append(base::StringPrintf("ChannelHandle(%s", p.name.c_str())); |
| #if defined(OS_POSIX) |
| l->append(", "); |
| ParamTraits<base::FileDescriptor>::Log(p.socket, l); |
| #endif |
| l->append(")"); |
| } |
| |
| void ParamTraits<LogData>::Write(Message* m, const param_type& p) { |
| WriteParam(m, p.channel); |
| WriteParam(m, p.routing_id); |
| WriteParam(m, p.type); |
| WriteParam(m, p.flags); |
| WriteParam(m, p.sent); |
| WriteParam(m, p.receive); |
| WriteParam(m, p.dispatch); |
| WriteParam(m, p.message_name); |
| WriteParam(m, p.params); |
| } |
| |
| bool ParamTraits<LogData>::Read(const Message* m, |
| PickleIterator* iter, |
| param_type* r) { |
| return |
| ReadParam(m, iter, &r->channel) && |
| ReadParam(m, iter, &r->routing_id) && |
| ReadParam(m, iter, &r->type) && |
| ReadParam(m, iter, &r->flags) && |
| ReadParam(m, iter, &r->sent) && |
| ReadParam(m, iter, &r->receive) && |
| ReadParam(m, iter, &r->dispatch) && |
| ReadParam(m, iter, &r->message_name) && |
| ReadParam(m, iter, &r->params); |
| } |
| |
| void ParamTraits<LogData>::Log(const param_type& p, std::string* l) { |
| // Doesn't make sense to implement this! |
| } |
| |
| void ParamTraits<Message>::Write(Message* m, const Message& p) { |
| #if defined(OS_POSIX) |
| // We don't serialize the file descriptors in the nested message, so there |
| // better not be any. |
| DCHECK(!p.HasFileDescriptors()); |
| #endif |
| |
| // Don't just write out the message. This is used to send messages between |
| // NaCl (Posix environment) and the browser (could be on Windows). The message |
| // header formats differ between these systems (so does handle sharing, but |
| // we already asserted we don't have any handles). So just write out the |
| // parts of the header we use. |
| // |
| // Be careful also to use only explicitly-sized types. The NaCl environment |
| // could be 64-bit and the host browser could be 32-bits. The nested message |
| // may or may not be safe to send between 32-bit and 64-bit systems, but we |
| // leave that up to the code sending the message to ensure. |
| m->WriteUInt32(static_cast<uint32>(p.routing_id())); |
| m->WriteUInt32(p.type()); |
| m->WriteUInt32(p.flags()); |
| m->WriteData(p.payload(), static_cast<uint32>(p.payload_size())); |
| } |
| |
| bool ParamTraits<Message>::Read(const Message* m, PickleIterator* iter, |
| Message* r) { |
| uint32 routing_id, type, flags; |
| if (!m->ReadUInt32(iter, &routing_id) || |
| !m->ReadUInt32(iter, &type) || |
| !m->ReadUInt32(iter, &flags)) |
| return false; |
| |
| int payload_size; |
| const char* payload; |
| if (!m->ReadData(iter, &payload, &payload_size)) |
| return false; |
| |
| r->SetHeaderValues(static_cast<int32>(routing_id), type, flags); |
| return r->WriteBytes(payload, payload_size); |
| } |
| |
| void ParamTraits<Message>::Log(const Message& p, std::string* l) { |
| l->append("<IPC::Message>"); |
| } |
| |
| #if defined(OS_WIN) |
| // Note that HWNDs/HANDLE/HCURSOR/HACCEL etc are always 32 bits, even on 64 |
| // bit systems. That's why we use the Windows macros to convert to 32 bits. |
| void ParamTraits<HANDLE>::Write(Message* m, const param_type& p) { |
| m->WriteInt(HandleToLong(p)); |
| } |
| |
| bool ParamTraits<HANDLE>::Read(const Message* m, PickleIterator* iter, |
| param_type* r) { |
| int32 temp; |
| if (!m->ReadInt(iter, &temp)) |
| return false; |
| *r = LongToHandle(temp); |
| return true; |
| } |
| |
| void ParamTraits<HANDLE>::Log(const param_type& p, std::string* l) { |
| l->append(base::StringPrintf("0x%X", p)); |
| } |
| |
| void ParamTraits<LOGFONT>::Write(Message* m, const param_type& p) { |
| m->WriteData(reinterpret_cast<const char*>(&p), sizeof(LOGFONT)); |
| } |
| |
| bool ParamTraits<LOGFONT>::Read(const Message* m, PickleIterator* iter, |
| param_type* r) { |
| const char *data; |
| int data_size = 0; |
| if (m->ReadData(iter, &data, &data_size) && data_size == sizeof(LOGFONT)) { |
| const LOGFONT *font = reinterpret_cast<LOGFONT*>(const_cast<char*>(data)); |
| if (_tcsnlen(font->lfFaceName, LF_FACESIZE) < LF_FACESIZE) { |
| memcpy(r, data, sizeof(LOGFONT)); |
| return true; |
| } |
| } |
| |
| NOTREACHED(); |
| return false; |
| } |
| |
| void ParamTraits<LOGFONT>::Log(const param_type& p, std::string* l) { |
| l->append(base::StringPrintf("<LOGFONT>")); |
| } |
| |
| void ParamTraits<MSG>::Write(Message* m, const param_type& p) { |
| m->WriteData(reinterpret_cast<const char*>(&p), sizeof(MSG)); |
| } |
| |
| bool ParamTraits<MSG>::Read(const Message* m, PickleIterator* iter, |
| param_type* r) { |
| const char *data; |
| int data_size = 0; |
| bool result = m->ReadData(iter, &data, &data_size); |
| if (result && data_size == sizeof(MSG)) { |
| memcpy(r, data, sizeof(MSG)); |
| } else { |
| result = false; |
| NOTREACHED(); |
| } |
| |
| return result; |
| } |
| |
| void ParamTraits<MSG>::Log(const param_type& p, std::string* l) { |
| l->append("<MSG>"); |
| } |
| |
| #endif // OS_WIN |
| |
| } // namespace IPC |