libcpr/include/cpr/callback.h
2024-04-13 21:01:22 -04:00

112 lines
4.3 KiB
C++

#ifndef CPR_CALLBACK_H
#define CPR_CALLBACK_H
#include "cprtypes.h"
#include <atomic>
#include <functional>
#include <optional>
#include <utility>
namespace cpr {
class ReadCallback {
public:
ReadCallback() = default;
// NOLINTNEXTLINE(google-explicit-constructor, hicpp-explicit-conversions)
ReadCallback(std::function<bool(char* buffer, size_t& size, intptr_t userdata)> p_callback, intptr_t p_userdata = 0) : userdata(p_userdata), size{-1}, callback{std::move(p_callback)} {}
ReadCallback(cpr_off_t p_size, std::function<bool(char* buffer, size_t& size, intptr_t userdata)> p_callback, intptr_t p_userdata = 0) : userdata(p_userdata), size{p_size}, callback{std::move(p_callback)} {}
bool operator()(char* buffer, size_t& buffer_size) const {
return callback(buffer, buffer_size, userdata);
}
intptr_t userdata{};
cpr_off_t size{};
std::function<bool(char* buffer, size_t& size, intptr_t userdata)> callback;
};
class HeaderCallback {
public:
HeaderCallback() = default;
// NOLINTNEXTLINE(google-explicit-constructor, hicpp-explicit-conversions)
HeaderCallback(std::function<bool(std::string header, intptr_t userdata)> p_callback, intptr_t p_userdata = 0) : userdata(p_userdata), callback(std::move(p_callback)) {}
bool operator()(std::string header) const {
return callback(std::move(header), userdata);
}
intptr_t userdata{};
std::function<bool(std::string header, intptr_t userdata)> callback;
};
class WriteCallback {
public:
WriteCallback() = default;
// NOLINTNEXTLINE(google-explicit-constructor, hicpp-explicit-conversions)
WriteCallback(std::function<bool(std::string data, intptr_t userdata)> p_callback, intptr_t p_userdata = 0) : userdata(p_userdata), callback(std::move(p_callback)) {}
bool operator()(std::string data) const {
return callback(std::move(data), userdata);
}
intptr_t userdata{};
std::function<bool(std::string data, intptr_t userdata)> callback;
};
class ProgressCallback {
public:
ProgressCallback() = default;
// NOLINTNEXTLINE(google-explicit-constructor, hicpp-explicit-conversions)
ProgressCallback(std::function<bool(cpr_pf_arg_t downloadTotal, cpr_pf_arg_t downloadNow, cpr_pf_arg_t uploadTotal, cpr_pf_arg_t uploadNow, intptr_t userdata)> p_callback, intptr_t p_userdata = 0) : userdata(p_userdata), callback(std::move(p_callback)) {}
bool operator()(cpr_pf_arg_t downloadTotal, cpr_pf_arg_t downloadNow, cpr_pf_arg_t uploadTotal, cpr_pf_arg_t uploadNow) const {
return callback(downloadTotal, downloadNow, uploadTotal, uploadNow, userdata);
}
intptr_t userdata{};
std::function<bool(cpr_pf_arg_t downloadTotal, cpr_pf_arg_t downloadNow, cpr_pf_arg_t uploadTotal, cpr_pf_arg_t uploadNow, intptr_t userdata)> callback;
};
class DebugCallback {
public:
enum class InfoType {
TEXT = 0,
HEADER_IN = 1,
HEADER_OUT = 2,
DATA_IN = 3,
DATA_OUT = 4,
SSL_DATA_IN = 5,
SSL_DATA_OUT = 6,
};
DebugCallback() = default;
// NOLINTNEXTLINE(google-explicit-constructor, hicpp-explicit-conversions)
DebugCallback(std::function<void(InfoType type, std::string data, intptr_t userdata)> p_callback, intptr_t p_userdata = 0) : userdata(p_userdata), callback(std::move(p_callback)) {}
void operator()(InfoType type, std::string data) const {
callback(type, std::move(data), userdata);
}
intptr_t userdata{};
std::function<void(InfoType type, std::string data, intptr_t userdata)> callback;
};
/**
* Functor class for progress functions that will be used in cancellable requests.
*/
class CancellationCallback {
public:
CancellationCallback() = default;
explicit CancellationCallback(std::shared_ptr<std::atomic_bool>&& cs) : cancellation_state{std::move(cs)} {}
CancellationCallback(std::shared_ptr<std::atomic_bool>&& cs, ProgressCallback& u_cb) : cancellation_state{std::move(cs)}, user_cb{std::reference_wrapper{u_cb}} {}
bool operator()(cpr_pf_arg_t dltotal, cpr_pf_arg_t dlnow, cpr_pf_arg_t ultotal, cpr_pf_arg_t ulnow) const;
void SetProgressCallback(ProgressCallback& u_cb);
private:
std::shared_ptr<std::atomic_bool> cancellation_state;
std::optional<std::reference_wrapper<ProgressCallback>> user_cb;
};
} // namespace cpr
#endif