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Fixed not being able to download in parallel

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- Removed `transfer` class in `http` namespace
- Consolidated the `http::context` and `http::multi` classes
This commit is contained in:
David Allen 2023-07-15 18:56:14 -06:00
parent 8ac3910730
commit 9d5c52f450
6 changed files with 346 additions and 244 deletions
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55
include/http.hpp
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@ -136,55 +136,50 @@ namespace gdpm::http{
// option::ForegroundColor{Color::green},
// option::FontStyles{std::vector<FontStyle>{FontStyle::bold}},
// };
struct transfer : public non_copyable{
transfer(){ curl = curl_easy_init(); }
transfer(transfer&&){}
~transfer(){ }
CURLcode res;
int id;
CURL *curl = nullptr;
FILE *fp = nullptr;
utils::memory_buffer data = {0};
};
using transfers = std::vector<transfer>;
using responses = std::vector<response>;
class context : public non_copyable{
public:
context();
context(int max_transfers = 1);
~context();
string url_escape(const string& url);
response request(const string& url, const http::request& params = http::request());
responses requests(const string_list& urls, const http::request& params = http::request());
response download_file(const string& url, const string& storage_path, const http::request& params = http::request());
responses download_files(const string_list& url, const string_list& storage_path, const http::request& params = http::request());
long get_download_size(const string& url);
long get_bytes_downloaded(const string& url);
void set_max_transfers(int max_transfers);
private:
CURL *curl = nullptr;
};
class multi{
public:
multi(long max_allowed_transfers = 2);
~multi();
string url_escape(const string& url);
ptr<transfers> make_requests(const string_list& urls, const http::request& params = http::request());
ptr<transfers> make_downloads(const string_list& url, const string_list& storage_path, const http::request& params = http::request());
ptr<responses> execute(ptr<transfers> transfers, size_t timeout = 1000);
private:
DynamicProgress<BlockProgressBar> progress_bars;
CURLM *cm = nullptr;
CURLMsg *cmessage = nullptr;
CURLMcode cres;
int messages_left = -1;
int max_transfers = 1;
int transfers_index = 0;
int transfers_left = -1;
DynamicProgress<BlockProgressBar> progress_bars;
};
// class multi{
// public:
// multi(long max_allowed_transfers = 2);
// ~multi();
// string url_escape(const string& url);
// ptr<responses> execute(ptr<transfers> transfers, size_t timeout = 1000);
// void cleanup();
// private:
// CURLM *cm = nullptr;
// CURLMsg *cmessage = nullptr;
// CURLMcode cres;
// int transfers_left = -1;
// };
curl_slist* add_headers(CURL *curl, const headers_t& headers);
static size_t write_to_buffer(char *contents, size_t size, size_t nmemb, void *userdata);
static size_t write_to_stream(char *ptr, size_t size, size_t nmemb, void *userdata);