Merge pull request #23 from underscorediscovery/progress-callback
add progress callback for http clients
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commit
ad5fba498e
12
httplib.h
12
httplib.h
@ -70,6 +70,7 @@ namespace httplib
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typedef std::map<std::string, std::string> Map;
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typedef std::multimap<std::string, std::string> MultiMap;
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typedef std::smatch Match;
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typedef std::function<void (int64_t current, int64_t total)> Progress;
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struct Request {
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std::string method;
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@ -78,6 +79,7 @@ struct Request {
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std::string body;
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Map params;
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Match matches;
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Progress progress;
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bool has_header(const char* key) const;
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std::string get_header_value(const char* key) const;
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@ -169,7 +171,7 @@ public:
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Client(const char* host, int port);
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virtual ~Client();
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std::shared_ptr<Response> get(const char* path);
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std::shared_ptr<Response> get(const char* path, Progress callback = [](int64_t,int64_t){});
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std::shared_ptr<Response> head(const char* path);
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std::shared_ptr<Response> post(const char* path, const std::string& body, const char* content_type);
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std::shared_ptr<Response> post(const char* path, const Map& params);
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@ -511,7 +513,7 @@ inline bool read_headers(Stream& strm, MultiMap& headers)
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}
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template <typename T>
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bool read_content(Stream& strm, T& x, bool allow_no_content_length)
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bool read_content(Stream& strm, T& x, bool allow_no_content_length, Progress progress = [](int64_t,int64_t){})
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{
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auto len = get_header_value_int(x.headers, "Content-Length", 0);
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if (len) {
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@ -523,6 +525,7 @@ bool read_content(Stream& strm, T& x, bool allow_no_content_length)
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return false;
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}
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r += r_incr;
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progress(r, len);
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}
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} else if (allow_no_content_length) {
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for (;;) {
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@ -1087,7 +1090,7 @@ inline bool Client::process_request(Stream& strm, const Request& req, Response&
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return false;
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}
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if (req.method != "HEAD") {
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if (!detail::read_content(strm, res, true)) {
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if (!detail::read_content(strm, res, true, req.progress)) {
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return false;
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}
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}
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@ -1109,11 +1112,12 @@ inline void Client::add_default_headers(Request& req)
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req.set_header("User-Agent", "cpp-httplib/0.1");
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}
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inline std::shared_ptr<Response> Client::get(const char* path)
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inline std::shared_ptr<Response> Client::get(const char* path, Progress callback)
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{
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Request req;
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req.method = "GET";
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req.path = path;
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req.progress = callback;
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add_default_headers(req);
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auto res = std::make_shared<Response>();
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