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examples: check more errors, fix cleanups, scope variables

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Inspired by Joshua's report on examples.

Closes #19055
This commit is contained in:
Viktor Szakats 2025-10-13 22:57:01 +02:00
parent 61dcb56743
commit 64ed2ea196
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GPG key ID: B5ABD165E2AEF201
42 changed files with 874 additions and 785 deletions
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76
docs/examples/multi-double.c
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@ -38,9 +38,6 @@ int main(void)
{
CURL *http_handle;
CURL *http_handle2;
CURLM *multi_handle;
int still_running = 1; /* keep number of running handles */
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
@ -49,47 +46,58 @@ int main(void)
http_handle = curl_easy_init();
http_handle2 = curl_easy_init();
/* set options */
curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
if(http_handle &&
http_handle2) {
/* set options */
curl_easy_setopt(http_handle2, CURLOPT_URL, "http://localhost/");
CURLM *multi_handle;
/* init a multi stack */
multi_handle = curl_multi_init();
/* set options */
curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
/* add the individual transfers */
curl_multi_add_handle(multi_handle, http_handle);
curl_multi_add_handle(multi_handle, http_handle2);
/* set options */
curl_easy_setopt(http_handle2, CURLOPT_URL, "http://localhost/");
while(still_running) {
CURLMsg *msg;
int queued;
CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
/* init a multi stack */
multi_handle = curl_multi_init();
if(multi_handle) {
if(still_running)
/* wait for activity, timeout or "nothing" */
mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
int still_running = 1; /* keep number of running handles */
if(mc)
break;
/* add the individual transfers */
curl_multi_add_handle(multi_handle, http_handle);
curl_multi_add_handle(multi_handle, http_handle2);
do {
msg = curl_multi_info_read(multi_handle, &queued);
if(msg) {
if(msg->msg == CURLMSG_DONE) {
/* a transfer ended */
fprintf(stderr, "Transfer completed\n");
}
while(still_running) {
CURLMsg *msg;
int queued;
CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
if(still_running)
/* wait for activity, timeout or "nothing" */
mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
if(mc)
break;
do {
msg = curl_multi_info_read(multi_handle, &queued);
if(msg) {
if(msg->msg == CURLMSG_DONE) {
/* a transfer ended */
fprintf(stderr, "Transfer completed\n");
}
}
} while(msg);
}
} while(msg);
curl_multi_remove_handle(multi_handle, http_handle);
curl_multi_remove_handle(multi_handle, http_handle2);
curl_multi_cleanup(multi_handle);
}
}
curl_multi_remove_handle(multi_handle, http_handle);
curl_multi_remove_handle(multi_handle, http_handle2);
curl_multi_cleanup(multi_handle);
curl_easy_cleanup(http_handle);
curl_easy_cleanup(http_handle2);