mastodont-c/include/mastodont_fetch.h
nekobit 0e269a0eeb Fix usage of angled -> quoted includes
FossilOrigin-Name: 9502a0fe3ad469cda46ab0835779eaa82a48533a3102d84388bd571ba7093eb5
2022-12-24 21:36:11 +00:00

89 lines
2.4 KiB
C

/*
* Licensed under BSD 3-Clause License
*/
#ifndef MASTODONT_FETCH_H
#define MASTODONT_FETCH_H
#include <cjson/cJSON.h>
#include <curl/curl.h>
#include "mastodont_types.h"
/** Used to store the response from CURL */
struct mstdnt_fetch_data
{
char* response;
size_t size;
// Callback from user
mstdnt_request_cb_t callback;
void* callback_args;
int (*json_cb)(cJSON*, void*, mstdnt_request_cb_data*);
void* json_args;
};
struct mstdnt_fd
{
int fd;
short events;
short revents;
};
/* Note: Don't quite rely on these values being equal to curl's! */
enum mstdnt_fds_events
{
MSTDNT_POLLIN = CURL_WAIT_POLLIN,
MSTDNT_POLLPRI = CURL_WAIT_POLLPRI,
MSTDNT_POLLOUT = CURL_WAIT_POLLOUT,
};
enum mstdnt_fetch_await
{
MSTDNT_AWAIT_ALL,
MSTDNT_AWAIT_ONCE,
};
size_t mstdnt_curl_write_callback(char* ptr, size_t _size, size_t nmemb, void* _content);
void mstdnt_fetch_data_cleanup(struct mstdnt_fetch_data* res);
/**
* @brief Attempts to fetch, async or blocking.
*
* @param mstdnt Mastodont struct
* @param curl curl API
* @param args Mastodont General args passed
* @param url URL of request
* @param results Results from response
* @return Number of connections in progress, or -1 on error
*/
int mstdnt_fetch_curl_async(mastodont_t* mstdnt,
CURL* curl,
struct mstdnt_args* args,
mstdnt_request_cb_t cb_request,
void* cb_args,
int (*json_cb)(cJSON*, void*, mstdnt_request_cb_data*),
void* json_args,
char* url,
CURLoption request_t,
char* request_t_custom);
/**
* @brief Blocks until a transfer is complete.
*
* You can also check curl's socket
*
* @param mstdnt Mastodont struct
* @param opt Option, MSTDNT_AWAIT_ALL means it will keep going until
* there are no more transfers. MSTDNT_AWAIT_ONCE will run
* @param extra_fds Set of file descriptors to poll alongside
* the mastodont data.
* @param nfds Length of extra_fds
* @return 1 on error
*/
int mstdnt_await(mastodont_t* mstdnt,
enum mstdnt_fetch_await opt,
struct mstdnt_fd extra_fds[],
size_t nfds);
void mstdnt_request_cb_cleanup(mstdnt_request_cb_data* data);
#endif /* MASTODONT_FETCH_H */