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Bug 716295 part 3 - Add serialization into a buffer instead of an ostream. r=nfroyd

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This commit is contained in:
Mike Hommey 2012-08-09 16:34:25 +02:00
parent c4303b4973
commit a08ff58250
1 changed files with 32 additions and 18 deletions
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50
build/unix/elfhack/elfxx.h
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@ -176,6 +176,20 @@ private:
throw std::runtime_error("Unsupported ELF data encoding");
}
template <typename R>
void serialize(const char *buf, size_t len, char ei_data)
{
assert(len >= sizeof(R));
if (ei_data == ELFDATA2LSB) {
T::template swap<little_endian>(*this, *(R *)buf);
return;
} else if (ei_data == ELFDATA2MSB) {
T::template swap<big_endian>(*this, *(R *)buf);
return;
}
throw std::runtime_error("Unsupported ELF data encoding");
}
public:
serializable(const char *buf, size_t len, char ei_class, char ei_data)
{
@ -209,30 +223,30 @@ public:
{
if (ei_class == ELFCLASS32) {
typename T::Type32 e;
if (ei_data == ELFDATA2LSB) {
T::template swap<little_endian>(*this, e);
file.write((char *)&e, sizeof(e));
return;
} else if (ei_data == ELFDATA2MSB) {
T::template swap<big_endian>(*this, e);
file.write((char *)&e, sizeof(e));
return;
}
serialize<typename T::Type32>((char *)&e, sizeof(e), ei_data);
file.write((char *)&e, sizeof(e));
return;
} else if (ei_class == ELFCLASS64) {
typename T::Type64 e;
if (ei_data == ELFDATA2LSB) {
T::template swap<little_endian>(*this, e);
file.write((char *)&e, sizeof(e));
return;
} else if (ei_data == ELFDATA2MSB) {
T::template swap<big_endian>(*this, e);
file.write((char *)&e, sizeof(e));
return;
}
serialize<typename T::Type64>((char *)&e, sizeof(e), ei_data);
file.write((char *)&e, sizeof(e));
return;
}
throw std::runtime_error("Unsupported ELF class or data encoding");
}
void serialize(char *buf, size_t len, char ei_class, char ei_data)
{
if (ei_class == ELFCLASS32) {
serialize<typename T::Type32>(buf, len, ei_data);
return;
} else if (ei_class == ELFCLASS64) {
serialize<typename T::Type64>(buf, len, ei_data);
return;
}
throw std::runtime_error("Unsupported ELF class");
}
static inline unsigned int size(char ei_class)
{
if (ei_class == ELFCLASS32)