X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftalloc_link%2F_info;fp=ccan%2Ftalloc_link%2F_info;h=0000000000000000000000000000000000000000;hp=d1cdb24bd66284d7e4ca4e412e479a087b8100cb;hb=db4e16e71cd1bb474307c971c6312389bb254053;hpb=4a2a6b70fccc12617925721e2c8aa557e8b18311

diff --git a/ccan/talloc_link/_info b/ccan/talloc_link/_info
deleted file mode 100644
index d1cdb24b..00000000
--- a/ccan/talloc_link/_info
+++ /dev/null
@@ -1,147 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include "config.h"
-
-/**
- * talloc_link - link helper for talloc
- *
- * Talloc references can be confusing and buggy.  In the cases where an object
- * needs multiple parents, all parents need to be aware of the situation; thus
- * talloc_link is a helper where all "parents" talloc_link an object they
- * agree to share ownership of.
- *
- * Example:
- *	// Silly program which keeps a cache of uppercased strings.
- *	// The cache wants to keep strings around even after they may have
- *	// been "freed" by the caller.
- *	#include <stdio.h>
- *	#include <err.h>
- *	#include <string.h>
- *	#include <ctype.h>
- *	#include <ccan/talloc/talloc.h>
- *	#include <ccan/talloc_link/talloc_link.h>
- *
- *	struct upcache {
- *		const char *str;
- *		const char *upstr;
- *	};
- *
- *	static struct upcache *cache;
- *	static unsigned int cache_hits = 0;
- *	#define CACHE_SIZE 4
- *	static void init_upcase(void)
- *	{
- *		cache = talloc_zero_array(NULL, struct upcache, CACHE_SIZE);
- *	}
- *
- *	static struct upcache *lookup_upcase(const char *str)
- *	{
- *		unsigned int i;
- *		for (i = 0; i < CACHE_SIZE; i++)
- *			if (cache[i].str && !strcmp(cache[i].str, str)) {
- *				cache_hits++;
- *				return &cache[i];
- *			}
- *		return NULL;
- *	}
- *
- *	static struct upcache *new_upcase(const char *str)
- *	{
- *		unsigned int i;
- *		char *upstr;
- *
- *		upstr = talloc_linked(cache, talloc_strdup(NULL, str));
- *		if (!upstr)
- *			return NULL;
- *
- *		i = random() % CACHE_SIZE;
- *
- *		// Throw out old: works fine if cache[i].upstr is NULL.
- *		talloc_delink(cache, cache[i].upstr);
- *
- *		// Replace with new.
- *		cache[i].str = str;
- *		cache[i].upstr = upstr;
- *		while (*upstr) {
- *			*upstr = toupper(*upstr);
- *			upstr++;
- *		}
- *		return &cache[i];
- *	}
- *
- *	// If you want to keep the result, talloc_link it.
- *	static const char *get_upcase(const char *str)
- *	{
- *		struct upcache *uc = lookup_upcase(str);
- *		if (!uc)
- *			uc = new_upcase(str);
- *		if (!uc)
- *			return NULL;
- *		return uc->upstr;
- *	}
- *
- *	static void exit_upcase(void)
- *	{
- *		talloc_free(cache);
- *		printf("Cache hits: %u\n", cache_hits);
- *	}
- *
- *	int main(int argc, char *argv[])
- *	{
- *		unsigned int i;
- *		const char **values;
- *
- *		// Will dump any memory leaks to stderr on exit.
- *		talloc_enable_leak_report();
- *
- *		// Initialize cache.
- *		init_upcase();
- *
- *		// Throw values in.
- *		values = talloc_array(NULL, const char *, argc);
- *		for (i = 1; i < argc; i++) {
- *			values[i-1] = talloc_link(values, get_upcase(argv[i]));
- *			if (!values[i-1])
- *				err(1, "Out of memory");
- *		}
- *		// This will free all the values, but cache will still work.
- *		talloc_free(values);
- *
- *		// Repeat!
- *		values = talloc_array(NULL, const char *, argc);
- *		for (i = 1; i < argc; i++) {
- *			values[i-1] = talloc_link(values, get_upcase(argv[i]));
- *			if (!values[i-1])
- *				err(1, "Out of memory");
- *		}
- *
- *		// This will remove cache links, but we still have a link.
- *		exit_upcase();
- *
- *		// Show values, so we output something.
- *		for (i = 0; i < argc - 1; i++)
- *			printf("%s ", values[i]);
- *		printf("\n");
- *
- *		// This will finally free the upcase strings (last link).
- *		talloc_free(values);
- *
- *		return 0;
- *	}
- *
- * License: GPL (v2 or any later version)
- * Author: Rusty Russell <rusty@rustcorp.com.au>
- */
-int main(int argc, char *argv[])
-{
-	if (argc != 2)
-		return 1;
-
-	if (strcmp(argv[1], "depends") == 0) {
-		printf("ccan/talloc\n");
-		printf("ccan/list\n");
-		return 0;
-	}
-
-	return 1;
-}