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author | Rusty Russell <rusty@rustcorp.com.au> | 2012-02-22 14:59:32 +1030 |
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committer | Amitay Isaacs <amitay@gmail.com> | 2012-03-07 13:16:16 +1100 |
commit | 361f3ea9ee577c5a3e2fed687a0b417b257c31de (patch) | |
tree | 6d356c3aa64317c609ff4e208be76e18996a55f8 /lib/ccan/list/list.c | |
parent | 4f5412dda687c3ff76b426842bf284d01d56a997 (diff) | |
download | samba-361f3ea9ee577c5a3e2fed687a0b417b257c31de.tar.gz samba-361f3ea9ee577c5a3e2fed687a0b417b257c31de.tar.bz2 samba-361f3ea9ee577c5a3e2fed687a0b417b257c31de.zip |
lib/ccan: import failtest and required ccan modules for TDB2 unit tests.
New modules: failtest, list, time, read_write_all and tlist.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'lib/ccan/list/list.c')
-rw-r--r-- | lib/ccan/list/list.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/lib/ccan/list/list.c b/lib/ccan/list/list.c new file mode 100644 index 0000000000..29dc30ba19 --- /dev/null +++ b/lib/ccan/list/list.c @@ -0,0 +1,43 @@ +/* Licensed under LGPLv2.1+ - see LICENSE file for details */ +#include <stdio.h> +#include <stdlib.h> +#include "list.h" + +static void *corrupt(const char *abortstr, + const struct list_node *head, + const struct list_node *node, + unsigned int count) +{ + if (abortstr) { + fprintf(stderr, + "%s: prev corrupt in node %p (%u) of %p\n", + abortstr, node, count, head); + abort(); + } + return NULL; +} + +struct list_node *list_check_node(const struct list_node *node, + const char *abortstr) +{ + const struct list_node *p, *n; + int count = 0; + + for (p = node, n = node->next; n != node; p = n, n = n->next) { + count++; + if (n->prev != p) + return corrupt(abortstr, node, n, count); + } + /* Check prev on head node. */ + if (node->prev != p) + return corrupt(abortstr, node, node, 0); + + return (struct list_node *)node; +} + +struct list_head *list_check(const struct list_head *h, const char *abortstr) +{ + if (!list_check_node(&h->n, abortstr)) + return NULL; + return (struct list_head *)h; +} |