mirror of
https://github.com/curl/curl.git
synced 2024-11-21 01:16:58 +08:00
examples: make the C++ examples follow our code style too
At least mostly, not counting // comments.
This commit is contained in:
Daniel Stenberg
parent
ed2fcd5428
commit
a41e8592d6
@ -40,8 +40,8 @@
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* Note:
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* For the sake of simplicity, URL is hard coded to "www.google.com"
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*
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* This is purely a demo app, all retrieved data is simply discarded by the write
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* callback.
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* This is purely a demo app, all retrieved data is simply discarded by the
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* write callback.
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*/
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@ -85,14 +85,12 @@ static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
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/* cancel running timer */
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timer.cancel();
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if(timeout_ms > 0)
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{
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if(timeout_ms > 0) {
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/* update timer */
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timer.expires_from_now(boost::posix_time::millisec(timeout_ms));
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timer.async_wait(boost::bind(&timer_cb, _1, g));
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}
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else
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{
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else {
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/* call timeout function immediately */
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boost::system::error_code error; /*success*/
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timer_cb(error, g);
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@ -104,11 +102,9 @@ static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
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/* Die if we get a bad CURLMcode somewhere */
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static void mcode_or_die(const char *where, CURLMcode code)
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{
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if(CURLM_OK != code)
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{
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if(CURLM_OK != code) {
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const char *s;
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switch(code)
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{
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switch(code) {
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case CURLM_CALL_MULTI_PERFORM:
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s = "CURLM_CALL_MULTI_PERFORM";
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break;
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@ -158,10 +154,8 @@ static void check_multi_info(GlobalInfo *g)
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fprintf(MSG_OUT, "\nREMAINING: %d", g->still_running);
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while((msg = curl_multi_info_read(g->multi, &msgs_left)))
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{
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if(msg->msg == CURLMSG_DONE)
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{
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while((msg = curl_multi_info_read(g->multi, &msgs_left))) {
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if(msg->msg == CURLMSG_DONE) {
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easy = msg->easy_handle;
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res = msg->data.result;
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curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
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@ -177,43 +171,41 @@ static void check_multi_info(GlobalInfo *g)
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/* Called by asio when there is an action on a socket */
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static void event_cb(GlobalInfo *g, boost::asio::ip::tcp::socket *tcp_socket,
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int action, const boost::system::error_code & error, int *fdp)
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int action, const boost::system::error_code & error,
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int *fdp)
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{
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fprintf(MSG_OUT, "\nevent_cb: action=%d", action);
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/* make sure the event matches what are wanted */
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if(*fdp == action || *fdp == CURL_POLL_INOUT)
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{
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if(*fdp == action || *fdp == CURL_POLL_INOUT) {
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curl_socket_t s = tcp_socket->native_handle();
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CURLMcode rc;
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if(error)
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action = CURL_CSELECT_ERR;
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rc = curl_multi_socket_action(g->multi, s, action, &g->still_running);
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mcode_or_die("event_cb: curl_multi_socket_action", rc);
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check_multi_info(g);
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if(g->still_running <= 0)
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{
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if(g->still_running <= 0) {
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fprintf(MSG_OUT, "\nlast transfer done, kill timeout");
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timer.cancel();
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}
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/* keep on watching.
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* the socket may have been closed and/or fdp may have been changed
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* in curl_multi_socket_action(), so check them both */
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if(!error && socket_map.find(s) != socket_map.end() &&
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(*fdp == action || *fdp == CURL_POLL_INOUT))
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{
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if(action == CURL_POLL_IN)
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{
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(*fdp == action || *fdp == CURL_POLL_INOUT)) {
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if(action == CURL_POLL_IN) {
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tcp_socket->async_read_some(boost::asio::null_buffers(),
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boost::bind(&event_cb, g, tcp_socket, action, _1, fdp));
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boost::bind(&event_cb, g, tcp_socket,
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action, _1, fdp));
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}
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if(action == CURL_POLL_OUT)
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{
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if(action == CURL_POLL_OUT) {
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tcp_socket->async_write_some(boost::asio::null_buffers(),
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boost::bind(&event_cb, g, tcp_socket, action, _1, fdp));
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boost::bind(&event_cb, g, tcp_socket,
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action, _1, fdp));
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}
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}
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}
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@ -222,12 +214,12 @@ static void event_cb(GlobalInfo *g, boost::asio::ip::tcp::socket *tcp_socket,
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/* Called by asio when our timeout expires */
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static void timer_cb(const boost::system::error_code & error, GlobalInfo *g)
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{
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if(!error)
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{
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if(!error) {
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fprintf(MSG_OUT, "\ntimer_cb: ");
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CURLMcode rc;
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rc = curl_multi_socket_action(g->multi, CURL_SOCKET_TIMEOUT, 0, &g->still_running);
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rc = curl_multi_socket_action(g->multi, CURL_SOCKET_TIMEOUT, 0,
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&g->still_running);
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mcode_or_die("timer_cb: curl_multi_socket_action", rc);
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check_multi_info(g);
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@ -239,22 +231,21 @@ static void remsock(int *f, GlobalInfo *g)
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{
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fprintf(MSG_OUT, "\nremsock: ");
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if(f)
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{
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if(f) {
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free(f);
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}
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}
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static void setsock(int *fdp, curl_socket_t s, CURL*e, int act, int oldact, GlobalInfo*g)
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static void setsock(int *fdp, curl_socket_t s, CURL *e, int act, int oldact,
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GlobalInfo *g)
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{
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fprintf(MSG_OUT, "\nsetsock: socket=%d, act=%d, fdp=%p", s, act, fdp);
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std::map<curl_socket_t, boost::asio::ip::tcp::socket *>::iterator it = socket_map.find(s);
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std::map<curl_socket_t, boost::asio::ip::tcp::socket *>::iterator it =
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socket_map.find(s);
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if(it == socket_map.end())
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{
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if(it == socket_map.end()) {
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fprintf(MSG_OUT, "\nsocket %d is a c-ares socket, ignoring", s);
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return;
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}
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@ -262,36 +253,33 @@ static void setsock(int *fdp, curl_socket_t s, CURL*e, int act, int oldact, Glob
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*fdp = act;
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if(act == CURL_POLL_IN)
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{
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if(act == CURL_POLL_IN) {
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fprintf(MSG_OUT, "\nwatching for socket to become readable");
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if(oldact != CURL_POLL_IN && oldact != CURL_POLL_INOUT)
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{
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if(oldact != CURL_POLL_IN && oldact != CURL_POLL_INOUT) {
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tcp_socket->async_read_some(boost::asio::null_buffers(),
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boost::bind(&event_cb, g, tcp_socket, CURL_POLL_IN, _1, fdp));
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boost::bind(&event_cb, g, tcp_socket,
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CURL_POLL_IN, _1, fdp));
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}
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}
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else if (act == CURL_POLL_OUT)
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{
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else if(act == CURL_POLL_OUT) {
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fprintf(MSG_OUT, "\nwatching for socket to become writable");
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if(oldact != CURL_POLL_OUT && oldact != CURL_POLL_INOUT)
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{
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if(oldact != CURL_POLL_OUT && oldact != CURL_POLL_INOUT) {
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tcp_socket->async_write_some(boost::asio::null_buffers(),
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boost::bind(&event_cb, g, tcp_socket, CURL_POLL_OUT, _1, fdp));
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boost::bind(&event_cb, g, tcp_socket,
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CURL_POLL_OUT, _1, fdp));
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}
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}
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else if(act == CURL_POLL_INOUT)
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{
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else if(act == CURL_POLL_INOUT) {
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fprintf(MSG_OUT, "\nwatching for socket to become readable & writable");
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if(oldact != CURL_POLL_IN && oldact != CURL_POLL_INOUT)
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{
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if(oldact != CURL_POLL_IN && oldact != CURL_POLL_INOUT) {
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tcp_socket->async_read_some(boost::asio::null_buffers(),
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boost::bind(&event_cb, g, tcp_socket, CURL_POLL_IN, _1, fdp));
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boost::bind(&event_cb, g, tcp_socket,
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CURL_POLL_IN, _1, fdp));
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}
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if(oldact != CURL_POLL_OUT && oldact != CURL_POLL_INOUT)
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{
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if(oldact != CURL_POLL_OUT && oldact != CURL_POLL_INOUT) {
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tcp_socket->async_write_some(boost::asio::null_buffers(),
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boost::bind(&event_cb, g, tcp_socket, CURL_POLL_OUT, _1, fdp));
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boost::bind(&event_cb, g, tcp_socket,
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CURL_POLL_OUT, _1, fdp));
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}
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}
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}
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@ -317,20 +305,16 @@ static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
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fprintf(MSG_OUT,
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"\nsocket callback: s=%d e=%p what=%s ", s, e, whatstr[what]);
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if(what == CURL_POLL_REMOVE)
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{
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if(what == CURL_POLL_REMOVE) {
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fprintf(MSG_OUT, "\n");
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remsock(actionp, g);
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}
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else
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{
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if(!actionp)
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{
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else {
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if(!actionp) {
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fprintf(MSG_OUT, "\nAdding data: %s", whatstr[what]);
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addsock(s, e, what, g);
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}
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else
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{
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else {
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fprintf(MSG_OUT,
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"\nChanging action from %s to %s",
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whatstr[*actionp], whatstr[what]);
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@ -344,9 +328,8 @@ static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
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/* CURLOPT_WRITEFUNCTION */
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static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data)
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{
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size_t written = size * nmemb;
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char* pBuffer = (char *) malloc(written + 1);
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char *pBuffer = (char *)malloc(written + 1);
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strncpy(pBuffer, (const char *)ptr, written);
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pBuffer[written] = '\0';
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@ -382,28 +365,28 @@ static curl_socket_t opensocket(void *clientp, curlsocktype purpose,
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curl_socket_t sockfd = CURL_SOCKET_BAD;
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/* restrict to IPv4 */
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if(purpose == CURLSOCKTYPE_IPCXN && address->family == AF_INET)
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{
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if(purpose == CURLSOCKTYPE_IPCXN && address->family == AF_INET) {
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/* create a tcp socket object */
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boost::asio::ip::tcp::socket *tcp_socket = new boost::asio::ip::tcp::socket(io_service);
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boost::asio::ip::tcp::socket *tcp_socket =
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new boost::asio::ip::tcp::socket(io_service);
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/* open it and get the native handle*/
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boost::system::error_code ec;
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tcp_socket->open(boost::asio::ip::tcp::v4(), ec);
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if(ec)
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{
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if(ec) {
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/* An error occurred */
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std::cout << std::endl << "Couldn't open socket [" << ec << "][" << ec.message() << "]";
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std::cout << std::endl << "Couldn't open socket [" << ec << "][" <<
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ec.message() << "]";
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fprintf(MSG_OUT, "\nERROR: Returning CURL_SOCKET_BAD to signal error");
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}
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else
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{
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else {
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sockfd = tcp_socket->native_handle();
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fprintf(MSG_OUT, "\nOpened socket %d", sockfd);
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/* save it for monitoring */
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socket_map.insert(std::pair<curl_socket_t, boost::asio::ip::tcp::socket *>(sockfd, tcp_socket));
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socket_map.insert(std::pair<curl_socket_t,
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boost::asio::ip::tcp::socket *>(sockfd, tcp_socket));
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}
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}
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@ -415,10 +398,10 @@ static int close_socket(void *clientp, curl_socket_t item)
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{
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fprintf(MSG_OUT, "\nclose_socket : %d", item);
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std::map<curl_socket_t, boost::asio::ip::tcp::socket *>::iterator it = socket_map.find(item);
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std::map<curl_socket_t, boost::asio::ip::tcp::socket *>::iterator it =
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socket_map.find(item);
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if(it != socket_map.end())
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{
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if(it != socket_map.end()) {
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delete it->second;
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socket_map.erase(it);
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}
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@ -435,10 +418,8 @@ static void new_conn(char *url, GlobalInfo *g)
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conn = (ConnInfo *) calloc(1, sizeof(ConnInfo));
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conn->easy = curl_easy_init();
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if(!conn->easy)
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{
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if(!conn->easy) {
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fprintf(MSG_OUT, "\ncurl_easy_init() failed, exiting!");
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exit(2);
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}
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@ -5,7 +5,7 @@
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
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* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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@ -22,14 +22,14 @@
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/* <DESC>
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* Get a web page, extract the title with libxml.
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* </DESC>
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*/
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// Written by Lars Nilsson
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//
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// GNU C++ compile command line suggestion (edit paths accordingly):
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//
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// g++ -Wall -I/opt/curl/include -I/opt/libxml/include/libxml2 htmltitle.cpp \
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// -o htmltitle -L/opt/curl/lib -L/opt/libxml/lib -lcurl -lxml2
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Written by Lars Nilsson
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GNU C++ compile command line suggestion (edit paths accordingly):
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g++ -Wall -I/opt/curl/include -I/opt/libxml/include/libxml2 htmltitle.cpp \
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-o htmltitle -L/opt/curl/lib -L/opt/libxml/lib -lcurl -lxml2
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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@ -72,7 +72,7 @@ static std::string buffer;
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static int writer(char *data, size_t size, size_t nmemb,
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std::string *writerData)
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{
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if (writerData == NULL)
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if(writerData == NULL)
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return 0;
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writerData->append(data, size*nmemb);
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@ -90,50 +90,38 @@ static bool init(CURL *&conn, char *url)
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conn = curl_easy_init();
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if (conn == NULL)
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{
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if(conn == NULL) {
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fprintf(stderr, "Failed to create CURL connection\n");
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exit(EXIT_FAILURE);
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}
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code = curl_easy_setopt(conn, CURLOPT_ERRORBUFFER, errorBuffer);
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if (code != CURLE_OK)
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{
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if(code != CURLE_OK) {
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fprintf(stderr, "Failed to set error buffer [%d]\n", code);
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return false;
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}
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code = curl_easy_setopt(conn, CURLOPT_URL, url);
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if (code != CURLE_OK)
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{
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if(code != CURLE_OK) {
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fprintf(stderr, "Failed to set URL [%s]\n", errorBuffer);
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return false;
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}
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code = curl_easy_setopt(conn, CURLOPT_FOLLOWLOCATION, 1L);
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if (code != CURLE_OK)
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{
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if(code != CURLE_OK) {
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fprintf(stderr, "Failed to set redirect option [%s]\n", errorBuffer);
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return false;
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}
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code = curl_easy_setopt(conn, CURLOPT_WRITEFUNCTION, writer);
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if (code != CURLE_OK)
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{
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if(code != CURLE_OK) {
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fprintf(stderr, "Failed to set writer [%s]\n", errorBuffer);
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return false;
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}
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code = curl_easy_setopt(conn, CURLOPT_WRITEDATA, &buffer);
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if (code != CURLE_OK)
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{
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if(code != CURLE_OK) {
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fprintf(stderr, "Failed to set write data [%s]\n", errorBuffer);
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return false;
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}
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@ -150,8 +138,7 @@ static void StartElement(void *voidContext,
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{
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Context *context = (Context *)voidContext;
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if (COMPARE((char *)name, "TITLE"))
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{
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if(COMPARE((char *)name, "TITLE")) {
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context->title = "";
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context->addTitle = true;
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}
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@ -167,7 +154,7 @@ static void EndElement(void *voidContext,
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{
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Context *context = (Context *)voidContext;
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if (COMPARE((char *)name, "TITLE"))
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if(COMPARE((char *)name, "TITLE"))
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context->addTitle = false;
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}
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@ -179,7 +166,7 @@ static void handleCharacters(Context *context,
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const xmlChar *chars,
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int length)
|
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{
|
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if (context->addTitle)
|
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if(context->addTitle)
|
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context->title.append((char *)chars, length);
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}
|
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@ -273,10 +260,8 @@ int main(int argc, char *argv[])
|
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// Ensure one argument is given
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|
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if (argc != 2)
|
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{
|
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if(argc != 2) {
|
||||
fprintf(stderr, "Usage: %s <url>\n", argv[0]);
|
||||
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
@ -284,10 +269,8 @@ int main(int argc, char *argv[])
|
||||
|
||||
// Initialize CURL connection
|
||||
|
||||
if (!init(conn, argv[1]))
|
||||
{
|
||||
if(!init(conn, argv[1])) {
|
||||
fprintf(stderr, "Connection initializion failed\n");
|
||||
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
@ -296,19 +279,15 @@ int main(int argc, char *argv[])
|
||||
code = curl_easy_perform(conn);
|
||||
curl_easy_cleanup(conn);
|
||||
|
||||
if (code != CURLE_OK)
|
||||
{
|
||||
if(code != CURLE_OK) {
|
||||
fprintf(stderr, "Failed to get '%s' [%s]\n", argv[1], errorBuffer);
|
||||
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
// Parse the (assumed) HTML code
|
||||
|
||||
parseHtml(buffer, title);
|
||||
|
||||
// Display the extracted title
|
||||
|
||||
printf("Title: %s\n", title.c_str());
|
||||
|
||||
return EXIT_SUCCESS;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user