recommended ones.
.Sp
See the description of \f(CW\*(C`ev_embed\*(C'\fR watchers for more info.
-.IP "ev_set_allocator (void *(*cb)(void *ptr, long size))" 4
-.IX Item "ev_set_allocator (void *(*cb)(void *ptr, long size))"
-Sets the allocation function to use (the prototype is similar to the
-realloc C function, the semantics are identical). It is used to allocate
-and free memory (no surprises here). If it returns zero when memory
-needs to be allocated, the library might abort or take some potentially
-destructive action. The default is your system realloc function.
+.IP "ev_set_allocator (void *(*cb)(void *ptr, size_t size))" 4
+.IX Item "ev_set_allocator (void *(*cb)(void *ptr, size_t size))"
+Sets the allocation function to use (the prototype and semantics are
+identical to the realloc C function). It is used to allocate and free
+memory (no surprises here). If it returns zero when memory needs to be
+allocated, the library might abort or take some potentially destructive
+action. The default is your system realloc function.
.Sp
You could override this function in high-availability programs to, say,
free some memory if it cannot allocate memory, to use a special allocator,
.Sp
.Vb 6
\& static void *
-\& persistent_realloc (void *ptr, long size)
+\& persistent_realloc (void *ptr, size_t size)
\& {
\& for (;;)
\& {
}
}
-static void *(*alloc)(void *ptr, long size);
+static void *(*alloc)(void *ptr, size_t size) = realloc;
void
-ev_set_allocator (void *(*cb)(void *ptr, long size))
+ev_set_allocator (void *(*cb)(void *ptr, size_t size))
{
alloc = cb;
}
-static void *
-ev_realloc (void *ptr, long size)
+inline_speed void *
+ev_realloc (void *ptr, size_t size)
{
- ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
+ ptr = alloc (ptr, size);
if (!ptr && size)
{
- fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
+ fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", (long)size);
abort ();
}
/*****************************************************************************/
+#include <stddef.h> /* for size_t */
+
#if EV_STAT_ENABLE
# include <sys/stat.h>
#endif
* or take some potentially destructive action.
* The default is your system realloc function.
*/
-void ev_set_allocator (void *(*cb)(void *ptr, long size));
+void ev_set_allocator (void *(*cb)(void *ptr, size_t size));
/* set the callback function to call on a
* retryable syscall error
<meta name="description" content="Pod documentation for libev" />
<meta name="inputfile" content="<standard input>" />
<meta name="outputfile" content="<standard output>" />
- <meta name="created" content="Tue Nov 27 20:23:27 2007" />
+ <meta name="created" content="Tue Nov 27 20:38:24 2007" />
<meta name="generator" content="Pod::Xhtml 1.57" />
<link rel="stylesheet" href="http://res.tst.eu/pod.css"/></head>
<body>
recommended ones.</p>
<p>See the description of <code>ev_embed</code> watchers for more info.</p>
</dd>
- <dt>ev_set_allocator (void *(*cb)(void *ptr, long size))</dt>
+ <dt>ev_set_allocator (void *(*cb)(void *ptr, size_t size))</dt>
<dd>
- <p>Sets the allocation function to use (the prototype is similar to the
-realloc C function, the semantics are identical). It is used to allocate
-and free memory (no surprises here). If it returns zero when memory
-needs to be allocated, the library might abort or take some potentially
-destructive action. The default is your system realloc function.</p>
+ <p>Sets the allocation function to use (the prototype and semantics are
+identical to the realloc C function). It is used to allocate and free
+memory (no surprises here). If it returns zero when memory needs to be
+allocated, the library might abort or take some potentially destructive
+action. The default is your system realloc function.</p>
<p>You could override this function in high-availability programs to, say,
free some memory if it cannot allocate memory, to use a special allocator,
or even to sleep a while and retry until some memory is available.</p>
<p>Example: replace the libev allocator with one that waits a bit and then
retries: better than mine).</p>
<pre> static void *
- persistent_realloc (void *ptr, long size)
+ persistent_realloc (void *ptr, size_t size)
{
for (;;)
{
See the description of C<ev_embed> watchers for more info.
-=item ev_set_allocator (void *(*cb)(void *ptr, long size))
+=item ev_set_allocator (void *(*cb)(void *ptr, size_t size))
-Sets the allocation function to use (the prototype is similar to the
-realloc C function, the semantics are identical). It is used to allocate
-and free memory (no surprises here). If it returns zero when memory
-needs to be allocated, the library might abort or take some potentially
-destructive action. The default is your system realloc function.
+Sets the allocation function to use (the prototype and semantics are
+identical to the realloc C function). It is used to allocate and free
+memory (no surprises here). If it returns zero when memory needs to be
+allocated, the library might abort or take some potentially destructive
+action. The default is your system realloc function.
You could override this function in high-availability programs to, say,
free some memory if it cannot allocate memory, to use a special allocator,
retries: better than mine).
static void *
- persistent_realloc (void *ptr, long size)
+ persistent_realloc (void *ptr, size_t size)
{
for (;;)
{
projects / software / libev.git / commitdiff