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This commit is contained in:
Yves
2025-02-19 11:20:42 +01:00
parent 80df1f7ce1
commit 5811f237d8
11 changed files with 636 additions and 569 deletions
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105
src/include/utils/helpers.hpp
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@@ -6,82 +6,95 @@
namespace duckdb {
typedef std::string (*simple_tf_t) (ClientContext &);
typedef std::string (*simple_tf_t)(ClientContext &);
struct RunOnceTableFunctionState : GlobalTableFunctionState {
RunOnceTableFunctionState() : run(false) {};
std::atomic<bool> run;
RunOnceTableFunctionState() : run(false){};
std::atomic<bool> run;
static unique_ptr<GlobalTableFunctionState> Init(ClientContext &,
TableFunctionInitInput &) {
return make_uniq<RunOnceTableFunctionState>();
}
static unique_ptr<GlobalTableFunctionState> Init(ClientContext &,
TableFunctionInitInput &) {
return make_uniq<RunOnceTableFunctionState>();
}
};
template <typename T>
T GetSetting(const ClientContext &context, const char *setting_name, const T default_value) {
Value value;
return context.TryGetCurrentSetting(setting_name, value) ? value.GetValue<T>() : default_value;
T GetSetting(const ClientContext &context, const char *setting_name,
const T default_value) {
Value value;
return context.TryGetCurrentSetting(setting_name, value) ? value.GetValue<T>()
: default_value;
}
namespace internal {
unique_ptr<FunctionData> ResultBind(ClientContext &, TableFunctionBindInput &,
vector<LogicalType> &,
vector<std::string> &);
vector<LogicalType> &,
vector<std::string> &);
bool ShouldRun(TableFunctionInput &input);
template <typename Func>
struct CallFunctionHelper;
template <typename Func> struct CallFunctionHelper;
template <>
struct CallFunctionHelper<std::string(*)()> {
static std::string call(ClientContext &context, TableFunctionInput &input, std::string(*f)()) {
return f();
}
template <> struct CallFunctionHelper<std::string (*)()> {
static std::string call(ClientContext &context, TableFunctionInput &input,
std::string (*f)()) {
return f();
}
};
template <> struct CallFunctionHelper<std::string (*)(ClientContext &)> {
static std::string call(ClientContext &context, TableFunctionInput &input,
std::string (*f)(ClientContext &)) {
return f(context);
}
};
template <>
struct CallFunctionHelper<std::string(*)(ClientContext &)> {
static std::string call(ClientContext &context, TableFunctionInput &input, std::string(*f)(ClientContext &)) {
return f(context);
}
};
template <>
struct CallFunctionHelper<std::string(*)(ClientContext &, TableFunctionInput &)> {
static std::string call(ClientContext &context, TableFunctionInput &input, std::string(*f)(ClientContext &, TableFunctionInput &)) {
return f(context, input);
}
struct CallFunctionHelper<std::string (*)(ClientContext &,
TableFunctionInput &)> {
static std::string call(ClientContext &context, TableFunctionInput &input,
std::string (*f)(ClientContext &,
TableFunctionInput &)) {
return f(context, input);
}
};
template <typename Func, Func func>
void TableFunc(ClientContext &context, TableFunctionInput &input, DataChunk &output) {
if (!ShouldRun(input)) {
return;
}
void TableFunc(ClientContext &context, TableFunctionInput &input,
DataChunk &output) {
if (!ShouldRun(input)) {
return;
}
const std::string result = CallFunctionHelper<Func>::call(context, input, func);
output.SetCardinality(1);
output.SetValue(0, 0, result);
const std::string result =
CallFunctionHelper<Func>::call(context, input, func);
output.SetCardinality(1);
output.SetValue(0, 0, result);
}
template <typename Func, Func func>
void RegisterTF(DatabaseInstance &instance, const char* name) {
TableFunction tf(name, {}, internal::TableFunc<Func, func>, internal::ResultBind, RunOnceTableFunctionState::Init);
ExtensionUtil::RegisterFunction(instance, tf);
void RegisterTF(DatabaseInstance &instance, const char *name) {
TableFunction tf(name, {}, internal::TableFunc<Func, func>,
internal::ResultBind, RunOnceTableFunctionState::Init);
ExtensionUtil::RegisterFunction(instance, tf);
}
template <typename Func, Func func>
void RegisterTFWithArgs(DatabaseInstance &instance, const char* name, vector<LogicalType> arguments, table_function_bind_t bind) {
TableFunction tf(name, arguments, internal::TableFunc<Func, func>, bind, RunOnceTableFunctionState::Init);
ExtensionUtil::RegisterFunction(instance, tf);
void RegisterTFWithArgs(DatabaseInstance &instance, const char *name,
vector<LogicalType> arguments,
table_function_bind_t bind) {
TableFunction tf(name, arguments, internal::TableFunc<Func, func>, bind,
RunOnceTableFunctionState::Init);
ExtensionUtil::RegisterFunction(instance, tf);
}
}
} // namespace internal
#define RESISTER_TF(name, func) internal::RegisterTF<decltype(&func), &func>(instance, name)
#define RESISTER_TF(name, func) \
internal::RegisterTF<decltype(&func), &func>(instance, name)
#define RESISTER_TF_ARGS(name, args, func, bind) internal::RegisterTFWithArgs<decltype(&func), &func>(instance, name, args, bind)
#define RESISTER_TF_ARGS(name, args, func, bind) \
internal::RegisterTFWithArgs<decltype(&func), &func>(instance, name, args, \
bind)
} // namespace duckdb