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add progress callback for http clients

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underscorediscovery 2017-11-22 13:01:19 -03:30
parent 140e5c06fb
commit 45d79d163b
1 changed files with 8 additions and 4 deletions
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12
httplib.h
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@ -66,6 +66,7 @@ namespace httplib
typedef std::map<std::string, std::string> Map;
typedef std::multimap<std::string, std::string> MultiMap;
typedef std::smatch Match;
typedef std::function<void (int64_t current, int64_t total)> Progress;
struct Request {
std::string method;
@ -74,6 +75,7 @@ struct Request {
std::string body;
Map params;
Match matches;
Progress progress;
bool has_header(const char* key) const;
std::string get_header_value(const char* key) const;
@ -165,7 +167,7 @@ public:
Client(const char* host, int port);
virtual ~Client();
std::shared_ptr<Response> get(const char* path);
std::shared_ptr<Response> get(const char* path, Progress callback = [](int64_t,int64_t){});
std::shared_ptr<Response> head(const char* path);
std::shared_ptr<Response> post(const char* path, const std::string& body, const char* content_type);
std::shared_ptr<Response> post(const char* path, const Map& params);
@ -507,7 +509,7 @@ inline bool read_headers(Stream& strm, MultiMap& headers)
}
template <typename T>
bool read_content(Stream& strm, T& x, bool allow_no_content_length)
bool read_content(Stream& strm, T& x, bool allow_no_content_length, Progress progress = [](int64_t,int64_t){})
{
auto len = get_header_value_int(x.headers, "Content-Length", 0);
if (len) {
@ -519,6 +521,7 @@ bool read_content(Stream& strm, T& x, bool allow_no_content_length)
return false;
}
r += r_incr;
progress(r, len);
}
} else if (allow_no_content_length) {
for (;;) {
@ -1083,7 +1086,7 @@ inline bool Client::process_request(Stream& strm, const Request& req, Response&
return false;
}
if (req.method != "HEAD") {
if (!detail::read_content(strm, res, true)) {
if (!detail::read_content(strm, res, true, req.progress)) {
return false;
}
}
@ -1105,11 +1108,12 @@ inline void Client::add_default_headers(Request& req)
req.set_header("User-Agent", "cpp-httplib/0.1");
}
inline std::shared_ptr<Response> Client::get(const char* path)
inline std::shared_ptr<Response> Client::get(const char* path, Progress callback)
{
Request req;
req.method = "GET";
req.path = path;
req.progress = callback;
add_default_headers(req);
auto res = std::make_shared<Response>();