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author | Zeno Albisser <zeno.albisser@digia.com> | 2013-08-15 21:46:11 +0200 |
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committer | Zeno Albisser <zeno.albisser@digia.com> | 2013-08-15 21:46:11 +0200 |
commit | 679147eead574d186ebf3069647b4c23e8ccace6 (patch) | |
tree | fc247a0ac8ff119f7c8550879ebb6d3dd8d1ff69 /chromium/ipc/ipc_message_utils.cc | |
download | qtwebengine-chromium-679147eead574d186ebf3069647b4c23e8ccace6.tar.gz |
Initial import.
Diffstat (limited to 'chromium/ipc/ipc_message_utils.cc')
-rw-r--r-- | chromium/ipc/ipc_message_utils.cc | 851 |
1 files changed, 851 insertions, 0 deletions
diff --git a/chromium/ipc/ipc_message_utils.cc b/chromium/ipc/ipc_message_utils.cc new file mode 100644 index 00000000000..2acddceb51c --- /dev/null +++ b/chromium/ipc/ipc_message_utils.cc @@ -0,0 +1,851 @@ +// 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>::Write(Message* m, const param_type& p) { + m->WriteData(reinterpret_cast<const char*>(&p), sizeof(param_type)); +} + +bool ParamTraits<float>::Read(const Message* m, PickleIterator* iter, + param_type* r) { + const char *data; + int data_size; + if (!m->ReadData(iter, &data, &data_size) || + data_size != sizeof(param_type)) { + NOTREACHED(); + return false; + } + memcpy(r, data, sizeof(param_type)); + return true; +} + +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->WriteData(reinterpret_cast<const char*>(&p), sizeof(param_type)); +} + +bool ParamTraits<double>::Read(const Message* m, PickleIterator* iter, + param_type* r) { + const char *data; + int data_size; + if (!m->ReadData(iter, &data, &data_size) || + data_size != sizeof(param_type)) { + 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 |