mirror of
https://github.com/moparisthebest/curl
synced 2024-12-21 23:58:49 -05:00
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 @@
|
||||
* Note:
|
||||
* For the sake of simplicity, URL is hard coded to "www.google.com"
|
||||
*
|
||||
* This is purely a demo app, all retrieved data is simply discarded by the write
|
||||
* callback.
|
||||
* This is purely a demo app, all retrieved data is simply discarded by the
|
||||
* write callback.
|
||||
*/
|
||||
|
||||
|
||||
@ -85,14 +85,12 @@ static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
|
||||
/* cancel running timer */
|
||||
timer.cancel();
|
||||
|
||||
if(timeout_ms > 0)
|
||||
{
|
||||
if(timeout_ms > 0) {
|
||||
/* update timer */
|
||||
timer.expires_from_now(boost::posix_time::millisec(timeout_ms));
|
||||
timer.async_wait(boost::bind(&timer_cb, _1, g));
|
||||
}
|
||||
else
|
||||
{
|
||||
else {
|
||||
/* call timeout function immediately */
|
||||
boost::system::error_code error; /*success*/
|
||||
timer_cb(error, g);
|
||||
@ -104,11 +102,9 @@ static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
|
||||
/* Die if we get a bad CURLMcode somewhere */
|
||||
static void mcode_or_die(const char *where, CURLMcode code)
|
||||
{
|
||||
if(CURLM_OK != code)
|
||||
{
|
||||
if(CURLM_OK != code) {
|
||||
const char *s;
|
||||
switch(code)
|
||||
{
|
||||
switch(code) {
|
||||
case CURLM_CALL_MULTI_PERFORM:
|
||||
s = "CURLM_CALL_MULTI_PERFORM";
|
||||
break;
|
||||
@ -158,10 +154,8 @@ static void check_multi_info(GlobalInfo *g)
|
||||
|
||||
fprintf(MSG_OUT, "\nREMAINING: %d", g->still_running);
|
||||
|
||||
while((msg = curl_multi_info_read(g->multi, &msgs_left)))
|
||||
{
|
||||
if(msg->msg == CURLMSG_DONE)
|
||||
{
|
||||
while((msg = curl_multi_info_read(g->multi, &msgs_left))) {
|
||||
if(msg->msg == CURLMSG_DONE) {
|
||||
easy = msg->easy_handle;
|
||||
res = msg->data.result;
|
||||
curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
|
||||
@ -177,43 +171,41 @@ static void check_multi_info(GlobalInfo *g)
|
||||
|
||||
/* Called by asio when there is an action on a socket */
|
||||
static void event_cb(GlobalInfo *g, boost::asio::ip::tcp::socket *tcp_socket,
|
||||
int action, const boost::system::error_code & error, int *fdp)
|
||||
int action, const boost::system::error_code & error,
|
||||
int *fdp)
|
||||
{
|
||||
fprintf(MSG_OUT, "\nevent_cb: action=%d", action);
|
||||
|
||||
/* make sure the event matches what are wanted */
|
||||
if(*fdp == action || *fdp == CURL_POLL_INOUT)
|
||||
{
|
||||
if(*fdp == action || *fdp == CURL_POLL_INOUT) {
|
||||
curl_socket_t s = tcp_socket->native_handle();
|
||||
CURLMcode rc;
|
||||
if(error)
|
||||
action = CURL_CSELECT_ERR;
|
||||
rc = curl_multi_socket_action(g->multi, s, action, &g->still_running);
|
||||
|
||||
|
||||
mcode_or_die("event_cb: curl_multi_socket_action", rc);
|
||||
check_multi_info(g);
|
||||
|
||||
if(g->still_running <= 0)
|
||||
{
|
||||
|
||||
if(g->still_running <= 0) {
|
||||
fprintf(MSG_OUT, "\nlast transfer done, kill timeout");
|
||||
timer.cancel();
|
||||
}
|
||||
|
||||
|
||||
/* keep on watching.
|
||||
* the socket may have been closed and/or fdp may have been changed
|
||||
* in curl_multi_socket_action(), so check them both */
|
||||
if(!error && socket_map.find(s) != socket_map.end() &&
|
||||
(*fdp == action || *fdp == CURL_POLL_INOUT))
|
||||
{
|
||||
if(action == CURL_POLL_IN)
|
||||
{
|
||||
(*fdp == action || *fdp == CURL_POLL_INOUT)) {
|
||||
if(action == CURL_POLL_IN) {
|
||||
tcp_socket->async_read_some(boost::asio::null_buffers(),
|
||||
boost::bind(&event_cb, g, tcp_socket, action, _1, fdp));
|
||||
boost::bind(&event_cb, g, tcp_socket,
|
||||
action, _1, fdp));
|
||||
}
|
||||
if(action == CURL_POLL_OUT)
|
||||
{
|
||||
if(action == CURL_POLL_OUT) {
|
||||
tcp_socket->async_write_some(boost::asio::null_buffers(),
|
||||
boost::bind(&event_cb, g, tcp_socket, action, _1, fdp));
|
||||
boost::bind(&event_cb, g, tcp_socket,
|
||||
action, _1, fdp));
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -222,12 +214,12 @@ static void event_cb(GlobalInfo *g, boost::asio::ip::tcp::socket *tcp_socket,
|
||||
/* Called by asio when our timeout expires */
|
||||
static void timer_cb(const boost::system::error_code & error, GlobalInfo *g)
|
||||
{
|
||||
if(!error)
|
||||
{
|
||||
if(!error) {
|
||||
fprintf(MSG_OUT, "\ntimer_cb: ");
|
||||
|
||||
CURLMcode rc;
|
||||
rc = curl_multi_socket_action(g->multi, CURL_SOCKET_TIMEOUT, 0, &g->still_running);
|
||||
rc = curl_multi_socket_action(g->multi, CURL_SOCKET_TIMEOUT, 0,
|
||||
&g->still_running);
|
||||
|
||||
mcode_or_die("timer_cb: curl_multi_socket_action", rc);
|
||||
check_multi_info(g);
|
||||
@ -239,22 +231,21 @@ static void remsock(int *f, GlobalInfo *g)
|
||||
{
|
||||
fprintf(MSG_OUT, "\nremsock: ");
|
||||
|
||||
if(f)
|
||||
{
|
||||
if(f) {
|
||||
free(f);
|
||||
}
|
||||
}
|
||||
|
||||
static void setsock(int *fdp, curl_socket_t s, CURL*e, int act, int oldact, GlobalInfo*g)
|
||||
static void setsock(int *fdp, curl_socket_t s, CURL *e, int act, int oldact,
|
||||
GlobalInfo *g)
|
||||
{
|
||||
fprintf(MSG_OUT, "\nsetsock: socket=%d, act=%d, fdp=%p", s, act, fdp);
|
||||
|
||||
std::map<curl_socket_t, boost::asio::ip::tcp::socket *>::iterator it = socket_map.find(s);
|
||||
std::map<curl_socket_t, boost::asio::ip::tcp::socket *>::iterator it =
|
||||
socket_map.find(s);
|
||||
|
||||
if(it == socket_map.end())
|
||||
{
|
||||
if(it == socket_map.end()) {
|
||||
fprintf(MSG_OUT, "\nsocket %d is a c-ares socket, ignoring", s);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
@ -262,36 +253,33 @@ static void setsock(int *fdp, curl_socket_t s, CURL*e, int act, int oldact, Glob
|
||||
|
||||
*fdp = act;
|
||||
|
||||
if(act == CURL_POLL_IN)
|
||||
{
|
||||
if(act == CURL_POLL_IN) {
|
||||
fprintf(MSG_OUT, "\nwatching for socket to become readable");
|
||||
if(oldact != CURL_POLL_IN && oldact != CURL_POLL_INOUT)
|
||||
{
|
||||
if(oldact != CURL_POLL_IN && oldact != CURL_POLL_INOUT) {
|
||||
tcp_socket->async_read_some(boost::asio::null_buffers(),
|
||||
boost::bind(&event_cb, g, tcp_socket, CURL_POLL_IN, _1, fdp));
|
||||
boost::bind(&event_cb, g, tcp_socket,
|
||||
CURL_POLL_IN, _1, fdp));
|
||||
}
|
||||
}
|
||||
else if (act == CURL_POLL_OUT)
|
||||
{
|
||||
else if(act == CURL_POLL_OUT) {
|
||||
fprintf(MSG_OUT, "\nwatching for socket to become writable");
|
||||
if(oldact != CURL_POLL_OUT && oldact != CURL_POLL_INOUT)
|
||||
{
|
||||
if(oldact != CURL_POLL_OUT && oldact != CURL_POLL_INOUT) {
|
||||
tcp_socket->async_write_some(boost::asio::null_buffers(),
|
||||
boost::bind(&event_cb, g, tcp_socket, CURL_POLL_OUT, _1, fdp));
|
||||
boost::bind(&event_cb, g, tcp_socket,
|
||||
CURL_POLL_OUT, _1, fdp));
|
||||
}
|
||||
}
|
||||
else if(act == CURL_POLL_INOUT)
|
||||
{
|
||||
else if(act == CURL_POLL_INOUT) {
|
||||
fprintf(MSG_OUT, "\nwatching for socket to become readable & writable");
|
||||
if(oldact != CURL_POLL_IN && oldact != CURL_POLL_INOUT)
|
||||
{
|
||||
if(oldact != CURL_POLL_IN && oldact != CURL_POLL_INOUT) {
|
||||
tcp_socket->async_read_some(boost::asio::null_buffers(),
|
||||
boost::bind(&event_cb, g, tcp_socket, CURL_POLL_IN, _1, fdp));
|
||||
boost::bind(&event_cb, g, tcp_socket,
|
||||
CURL_POLL_IN, _1, fdp));
|
||||
}
|
||||
if(oldact != CURL_POLL_OUT && oldact != CURL_POLL_INOUT)
|
||||
{
|
||||
if(oldact != CURL_POLL_OUT && oldact != CURL_POLL_INOUT) {
|
||||
tcp_socket->async_write_some(boost::asio::null_buffers(),
|
||||
boost::bind(&event_cb, g, tcp_socket, CURL_POLL_OUT, _1, fdp));
|
||||
boost::bind(&event_cb, g, tcp_socket,
|
||||
CURL_POLL_OUT, _1, fdp));
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -317,20 +305,16 @@ static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
|
||||
fprintf(MSG_OUT,
|
||||
"\nsocket callback: s=%d e=%p what=%s ", s, e, whatstr[what]);
|
||||
|
||||
if(what == CURL_POLL_REMOVE)
|
||||
{
|
||||
if(what == CURL_POLL_REMOVE) {
|
||||
fprintf(MSG_OUT, "\n");
|
||||
remsock(actionp, g);
|
||||
}
|
||||
else
|
||||
{
|
||||
if(!actionp)
|
||||
{
|
||||
else {
|
||||
if(!actionp) {
|
||||
fprintf(MSG_OUT, "\nAdding data: %s", whatstr[what]);
|
||||
addsock(s, e, what, g);
|
||||
}
|
||||
else
|
||||
{
|
||||
else {
|
||||
fprintf(MSG_OUT,
|
||||
"\nChanging action from %s to %s",
|
||||
whatstr[*actionp], whatstr[what]);
|
||||
@ -344,9 +328,8 @@ static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
|
||||
/* CURLOPT_WRITEFUNCTION */
|
||||
static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data)
|
||||
{
|
||||
|
||||
size_t written = size * nmemb;
|
||||
char* pBuffer = (char *) malloc(written + 1);
|
||||
char *pBuffer = (char *)malloc(written + 1);
|
||||
|
||||
strncpy(pBuffer, (const char *)ptr, written);
|
||||
pBuffer[written] = '\0';
|
||||
@ -382,28 +365,28 @@ static curl_socket_t opensocket(void *clientp, curlsocktype purpose,
|
||||
curl_socket_t sockfd = CURL_SOCKET_BAD;
|
||||
|
||||
/* restrict to IPv4 */
|
||||
if(purpose == CURLSOCKTYPE_IPCXN && address->family == AF_INET)
|
||||
{
|
||||
if(purpose == CURLSOCKTYPE_IPCXN && address->family == AF_INET) {
|
||||
/* create a tcp socket object */
|
||||
boost::asio::ip::tcp::socket *tcp_socket = new boost::asio::ip::tcp::socket(io_service);
|
||||
boost::asio::ip::tcp::socket *tcp_socket =
|
||||
new boost::asio::ip::tcp::socket(io_service);
|
||||
|
||||
/* open it and get the native handle*/
|
||||
boost::system::error_code ec;
|
||||
tcp_socket->open(boost::asio::ip::tcp::v4(), ec);
|
||||
|
||||
if(ec)
|
||||
{
|
||||
if(ec) {
|
||||
/* An error occurred */
|
||||
std::cout << std::endl << "Couldn't open socket [" << ec << "][" << ec.message() << "]";
|
||||
std::cout << std::endl << "Couldn't open socket [" << ec << "][" <<
|
||||
ec.message() << "]";
|
||||
fprintf(MSG_OUT, "\nERROR: Returning CURL_SOCKET_BAD to signal error");
|
||||
}
|
||||
else
|
||||
{
|
||||
else {
|
||||
sockfd = tcp_socket->native_handle();
|
||||
fprintf(MSG_OUT, "\nOpened socket %d", sockfd);
|
||||
|
||||
/* save it for monitoring */
|
||||
socket_map.insert(std::pair<curl_socket_t, boost::asio::ip::tcp::socket *>(sockfd, tcp_socket));
|
||||
socket_map.insert(std::pair<curl_socket_t,
|
||||
boost::asio::ip::tcp::socket *>(sockfd, tcp_socket));
|
||||
}
|
||||
}
|
||||
|
||||
@ -415,10 +398,10 @@ static int close_socket(void *clientp, curl_socket_t item)
|
||||
{
|
||||
fprintf(MSG_OUT, "\nclose_socket : %d", item);
|
||||
|
||||
std::map<curl_socket_t, boost::asio::ip::tcp::socket *>::iterator it = socket_map.find(item);
|
||||
std::map<curl_socket_t, boost::asio::ip::tcp::socket *>::iterator it =
|
||||
socket_map.find(item);
|
||||
|
||||
if(it != socket_map.end())
|
||||
{
|
||||
if(it != socket_map.end()) {
|
||||
delete it->second;
|
||||
socket_map.erase(it);
|
||||
}
|
||||
@ -435,10 +418,8 @@ static void new_conn(char *url, GlobalInfo *g)
|
||||
conn = (ConnInfo *) calloc(1, sizeof(ConnInfo));
|
||||
|
||||
conn->easy = curl_easy_init();
|
||||
if(!conn->easy)
|
||||
{
|
||||
if(!conn->easy) {
|
||||
fprintf(MSG_OUT, "\ncurl_easy_init() failed, exiting!");
|
||||
|
||||
exit(2);
|
||||
}
|
||||
|
||||
|
||||
@ -5,7 +5,7 @@
|
||||
* | (__| |_| | _ <| |___
|
||||
* \___|\___/|_| \_\_____|
|
||||
*
|
||||
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
|
||||
* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
|
||||
*
|
||||
* This software is licensed as described in the file COPYING, which
|
||||
* you should have received as part of this distribution. The terms
|
||||
@ -22,14 +22,14 @@
|
||||
/* <DESC>
|
||||
* Get a web page, extract the title with libxml.
|
||||
* </DESC>
|
||||
*/
|
||||
// Written by Lars Nilsson
|
||||
//
|
||||
// GNU C++ compile command line suggestion (edit paths accordingly):
|
||||
//
|
||||
// g++ -Wall -I/opt/curl/include -I/opt/libxml/include/libxml2 htmltitle.cpp \
|
||||
// -o htmltitle -L/opt/curl/lib -L/opt/libxml/lib -lcurl -lxml2
|
||||
|
||||
Written by Lars Nilsson
|
||||
|
||||
GNU C++ compile command line suggestion (edit paths accordingly):
|
||||
|
||||
g++ -Wall -I/opt/curl/include -I/opt/libxml/include/libxml2 htmltitle.cpp \
|
||||
-o htmltitle -L/opt/curl/lib -L/opt/libxml/lib -lcurl -lxml2
|
||||
*/
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
@ -72,7 +72,7 @@ static std::string buffer;
|
||||
static int writer(char *data, size_t size, size_t nmemb,
|
||||
std::string *writerData)
|
||||
{
|
||||
if (writerData == NULL)
|
||||
if(writerData == NULL)
|
||||
return 0;
|
||||
|
||||
writerData->append(data, size*nmemb);
|
||||
@ -90,50 +90,38 @@ static bool init(CURL *&conn, char *url)
|
||||
|
||||
conn = curl_easy_init();
|
||||
|
||||
if (conn == NULL)
|
||||
{
|
||||
if(conn == NULL) {
|
||||
fprintf(stderr, "Failed to create CURL connection\n");
|
||||
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
code = curl_easy_setopt(conn, CURLOPT_ERRORBUFFER, errorBuffer);
|
||||
if (code != CURLE_OK)
|
||||
{
|
||||
if(code != CURLE_OK) {
|
||||
fprintf(stderr, "Failed to set error buffer [%d]\n", code);
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
code = curl_easy_setopt(conn, CURLOPT_URL, url);
|
||||
if (code != CURLE_OK)
|
||||
{
|
||||
if(code != CURLE_OK) {
|
||||
fprintf(stderr, "Failed to set URL [%s]\n", errorBuffer);
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
code = curl_easy_setopt(conn, CURLOPT_FOLLOWLOCATION, 1L);
|
||||
if (code != CURLE_OK)
|
||||
{
|
||||
if(code != CURLE_OK) {
|
||||
fprintf(stderr, "Failed to set redirect option [%s]\n", errorBuffer);
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
code = curl_easy_setopt(conn, CURLOPT_WRITEFUNCTION, writer);
|
||||
if (code != CURLE_OK)
|
||||
{
|
||||
if(code != CURLE_OK) {
|
||||
fprintf(stderr, "Failed to set writer [%s]\n", errorBuffer);
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
code = curl_easy_setopt(conn, CURLOPT_WRITEDATA, &buffer);
|
||||
if (code != CURLE_OK)
|
||||
{
|
||||
if(code != CURLE_OK) {
|
||||
fprintf(stderr, "Failed to set write data [%s]\n", errorBuffer);
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
@ -150,8 +138,7 @@ static void StartElement(void *voidContext,
|
||||
{
|
||||
Context *context = (Context *)voidContext;
|
||||
|
||||
if (COMPARE((char *)name, "TITLE"))
|
||||
{
|
||||
if(COMPARE((char *)name, "TITLE")) {
|
||||
context->title = "";
|
||||
context->addTitle = true;
|
||||
}
|
||||
@ -167,7 +154,7 @@ static void EndElement(void *voidContext,
|
||||
{
|
||||
Context *context = (Context *)voidContext;
|
||||
|
||||
if (COMPARE((char *)name, "TITLE"))
|
||||
if(COMPARE((char *)name, "TITLE"))
|
||||
context->addTitle = false;
|
||||
}
|
||||
|
||||
@ -179,7 +166,7 @@ static void handleCharacters(Context *context,
|
||||
const xmlChar *chars,
|
||||
int length)
|
||||
{
|
||||
if (context->addTitle)
|
||||
if(context->addTitle)
|
||||
context->title.append((char *)chars, length);
|
||||
}
|
||||
|
||||
@ -273,10 +260,8 @@ int main(int argc, char *argv[])
|
||||
|
||||
// Ensure one argument is given
|
||||
|
||||
if (argc != 2)
|
||||
{
|
||||
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