curl_global_init_mem - backs
#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);
curl_global_init_mem(3) libcurl Manual curl_global_init_mem(3)
NAME
curl_global_init_mem - Global libcurl initialization with memory call-
backs
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 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 pro-
totypes 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 curl_global_init(3), please
refer to that man page for documentation.
CAUTION
Manipulating these gives considerable powers to the application to se-
verely screw things up for libcurl. Take care!
EXAMPLE
curl_global_init_mem(CURL_GLOBAL_DEFAULT, curl_malloc_cb,
curl_free_cb, curl_realloc_cb,
curl_strdup_cb, curl_calloc_cb);
AVAILABILITY
Added in 7.12.0
RETURN VALUE
CURLE_OK (0) means everything was ok, non-zero means an error occurred
as <curl/curl.h> defines - see libcurl-errors(3).
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | web/curl |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
SEE ALSO
curl_global_init(3), curl_global_cleanup(3),
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://curl.se/down-
load/curl-7.83.1.tar.bz2.
Further information about this software can be found on the open source
community website at http://curl.haxx.se/.
libcurl 7.83.1 April 05, 2022 curl_global_init_mem(3)