ccan/ntdb: demote to junkcode.

[ccan] / junkcode / rusty@rustcorp.com.au-ntdb / test / run-remap-in-read_traverse.c

diff --git a/junkcode/rusty@rustcorp.com.au-ntdb/test/run-remap-in-read_traverse.c b/junkcode/rusty@rustcorp.com.au-ntdb/test/run-remap-in-read_traverse.c
new file mode 100644 (file)
index 0000000..6fe537d
--- /dev/null
+++ b/junkcode/rusty@rustcorp.com.au-ntdb/test/run-remap-in-read_traverse.c
@@ -0,0 +1,58 @@
+#include "ntdb-source.h"
+/* We had a bug where we marked the ntdb read-only for a ntdb_traverse_read.
+ * If we then expanded the ntdb, we would remap read-only, and later SEGV. */
+#include "tap-interface.h"
+#include "external-agent.h"
+#include "logging.h"
+#include "helprun-external-agent.h"
+
+static bool file_larger(int fd, ntdb_len_t size)
+{
+       struct stat st;
+
+       fstat(fd, &st);
+       return st.st_size != size;
+}
+
+static unsigned add_records_to_grow(struct agent *agent, int fd, ntdb_len_t size)
+{
+       unsigned int i;
+
+       for (i = 0; !file_larger(fd, size); i++) {
+               char data[50];
+               sprintf(data, "%i=%i", i, i);
+               if (external_agent_operation(agent, STORE, data) != SUCCESS)
+                       return 0;
+       }
+       diag("Added %u records to grow file", i);
+       return i;
+}
+
+int main(int argc, char *argv[])
+{
+       unsigned int i;
+       struct agent *agent;
+       struct ntdb_context *ntdb;
+       NTDB_DATA d = ntdb_mkdata("hello", 5);
+       const char filename[] = "run-remap-in-read_traverse.ntdb";
+
+       plan_tests(4);
+
+       agent = prepare_external_agent();
+
+       ntdb = ntdb_open(filename, MAYBE_NOSYNC,
+                      O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+
+       ok1(external_agent_operation(agent, OPEN, filename) == SUCCESS);
+       i = add_records_to_grow(agent, ntdb->file->fd, ntdb->file->map_size);
+
+       /* Do a traverse. */
+       ok1(ntdb_traverse(ntdb, NULL, NULL) == i);
+
+       /* Now store something! */
+       ok1(ntdb_store(ntdb, d, d, NTDB_INSERT) == 0);
+       ok1(tap_log_messages == 0);
+       ntdb_close(ntdb);
+       free_external_agent(agent);
+       return exit_status();
+}