curl_global_init_mem(3)         libcurl Manual         curl_global_init_mem(3)

NAME
       curl_global_init_mem - Global libcurl initialisation with memory
       callbacks

SYNOPSIS
       #include <curl/curl.h>
       CURLcode curl_global_init_mem(long  flags,
        curl_malloc_callback  m,
        curl_free_callback  f,
        curl_realloc_callback  r,
        curl_strdup_callback  s,
        curl_calloc_callback  c );

DESCRIPTION
       This function works exactly as _global_init&section=3">curl_global_init(3) with one addition:
       it allows the application to set callbacks to replace the otherwise
       used internal memory functions.

       If you are using libcurl from multiple threads or libcurl was built
       with the threaded resolver option then the callback functions must be
       thread safe. The threaded resolver is a common build option to enable
       (and in some cases the default) so we strongly urge you to make your
       callback functions thread safe.

       All callback arguments must be set to valid function pointers. The
       prototypes for the given callbacks must match these:

       void *malloc_callback(size_t size);
              To replace malloc()

       void free_callback(void *ptr);
              To replace free()

       void *realloc_callback(void *ptr, size_t size);
              To replace realloc()

       char *strdup_callback(const char *str);
              To replace strdup()

       void *calloc_callback(size_t nmemb, size_t size);
              To replace calloc()
       This function is otherwise the same as _global_init&section=3">curl_global_init(3), please
       refer to that man page for documentation.

CAUTION
       Manipulating these gives considerable powers to the application to
       severely screw things up for libcurl. Take care!

AVAILABILITY
       Added in 7.12.0

SEE ALSO
       curl_global_init(3),  curl_global_cleanup(3),

libcurl 7.77.0                 November 5, 2020        curl_global_init_mem(3)