Description:

This function must be the first function to call, and it returns a CURL easy handle that you must use as input to other easy-functions. curl_easy_init initializes curl and this call MUST have a corresponding call to curl_easy_cleanup when the operation is complete.
If you did not already call curl_global_init, curl_easy_init does it automatically. This may be lethal in multi-threaded cases, since curl_global_init is not thread-safe, and it may result in resource problems because there is no corresponding cleanup.
You are strongly advised to not allow this automatic behaviour, by calling curl_global_init yourself properly. See the description in libcurl of global environment requirements for details of how to use this function.