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authorRusty Russell <rusty@rustcorp.com.au>2011-09-14 08:13:26 +0930
committerRusty Russell <rusty@rustcorp.com.au>2011-09-14 08:13:26 +0930
commit5fac36f5adcc3bd483fa5b4e068db3c1174e8a4a (patch)
treeeb6b2eb5e02d217e2095c30c282d62e4c1cd7c1d /lib/tdb2/test
parent1cb92ea9cf3efcc5f4295b7aeb8ddd10e174127c (diff)
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tdb2: test: fix run-57-die-during-transaction.c to be more efficient.
We track malloc and free, but we didn't catch the free() inside external_agent, which means that our list of allocations keeps growing. Particularly under valgrind, which re-uses memory less than the glibc allocator. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit d9cbd7d4454ae35e4e2f6d18a9469bf26948e4b9)
Diffstat (limited to 'lib/tdb2/test')
-rw-r--r--lib/tdb2/test/external-agent.c6
-rw-r--r--lib/tdb2/test/external-agent.h3
-rw-r--r--lib/tdb2/test/run-57-die-during-transaction.c12
3 files changed, 18 insertions, 3 deletions
diff --git a/lib/tdb2/test/external-agent.c b/lib/tdb2/test/external-agent.c
index 23874777da..01c7106fba 100644
--- a/lib/tdb2/test/external-agent.c
+++ b/lib/tdb2/test/external-agent.c
@@ -17,6 +17,8 @@
static struct tdb_context *tdb;
+void (*external_agent_free)(void *) = free;
+
static enum TDB_ERROR clear_if_first(int fd, void *arg)
{
/* We hold a lock offset 4 always, so we can tell if anyone is holding it.
@@ -100,10 +102,10 @@ static enum agent_return do_operation(enum operation op, const char *name)
ret = OTHER_FAILURE;
} else if (!tdb_deq(data, k)) {
ret = OTHER_FAILURE;
- free(data.dptr);
+ external_agent_free(data.dptr);
} else {
ret = SUCCESS;
- free(data.dptr);
+ external_agent_free(data.dptr);
}
break;
case STORE:
diff --git a/lib/tdb2/test/external-agent.h b/lib/tdb2/test/external-agent.h
index 9eada10750..cf9789b669 100644
--- a/lib/tdb2/test/external-agent.h
+++ b/lib/tdb2/test/external-agent.h
@@ -35,6 +35,9 @@ enum agent_return external_agent_operation(struct agent *handle,
enum operation op,
const char *name);
+/* Hook into free() on tdb_data in external agent. */
+void (*external_agent_free)(void *);
+
/* Mapping enum -> string. */
const char *agent_return_name(enum agent_return ret);
const char *operation_name(enum operation op);
diff --git a/lib/tdb2/test/run-57-die-during-transaction.c b/lib/tdb2/test/run-57-die-during-transaction.c
index 6e9cb1e3e7..42102ae732 100644
--- a/lib/tdb2/test/run-57-die-during-transaction.c
+++ b/lib/tdb2/test/run-57-die-during-transaction.c
@@ -15,8 +15,9 @@ static int ftruncate_check(int fd, off_t length);
/* There's a malloc inside transaction_setup_recovery, and valgrind complains
* when we longjmp and leak it. */
-#define MAX_ALLOCATIONS 200
+#define MAX_ALLOCATIONS 10
static void *allocated[MAX_ALLOCATIONS];
+static unsigned max_alloc = 0;
static void *malloc_noleak(size_t len)
{
@@ -25,6 +26,10 @@ static void *malloc_noleak(size_t len)
for (i = 0; i < MAX_ALLOCATIONS; i++)
if (!allocated[i]) {
allocated[i] = malloc(len);
+ if (i > max_alloc) {
+ max_alloc = i;
+ diag("max_alloc: %i", max_alloc);
+ }
return allocated[i];
}
diag("Too many allocations!");
@@ -37,6 +42,10 @@ static void *realloc_noleak(void *p, size_t size)
for (i = 0; i < MAX_ALLOCATIONS; i++) {
if (allocated[i] == p) {
+ if (i > max_alloc) {
+ max_alloc = i;
+ diag("max_alloc: %i", max_alloc);
+ }
return allocated[i] = realloc(p, size);
}
}
@@ -270,6 +279,7 @@ int main(int argc, char *argv[])
plan_tests(24);
unlock_callback = maybe_die;
+ external_agent_free = free_noleak;
agent = prepare_external_agent();
if (!agent)
err(1, "preparing agent");