object-introspection/types/folly_iobuf_type.toml
Alastair Robertson 68290655b1 TypeGraph: Update container TOML files to new format
This change is fully backwards compatible with the old ContainerInfo
parser, as it is just adding new fields.

The old fields will continue to be used by legacy OICodeGen until that
is removed.

Also add a README to document the format.
2023-05-26 18:21:59 +01:00

42 lines
1.1 KiB
TOML

[info]
type_name = "folly::IOBuf"
ctype = "FOLLY_IOBUF_TYPE"
header = "folly/io/IOBuf.h"
# Old:
typeName = "folly::IOBuf"
matcher = "^folly::IOBuf$"
ns = ["folly::IOBuf"]
numTemplateParams = 0
replaceTemplateParamIndex = []
[codegen]
decl = """
void getSizeType(const %1% &container, size_t& returnArg);
"""
func = """
void getSizeType(const %1% &container, size_t& returnArg)
{
SAVE_SIZE(sizeof(%1%));
// We calculate the length of all IOBufs in the chain manually.
// IOBuf has built-in computeChainCapacity()/computeChainLength()
// functions which do this for us. But dead code optimization in TAO
// caused these functions to be removed which causes relocation
// errors.
std::size_t fullLength = container.length();
std::size_t fullCapacity = container.capacity();
for (const IOBuf* current = container.next(); current != &container;
current = current->next()) {
fullLength += current->length();
fullCapacity += current->capacity();
}
SAVE_DATA(fullCapacity);
SAVE_DATA(fullLength);
SAVE_SIZE(fullCapacity);
}
"""