1 files changed, 146 insertions, 0 deletions
diff --git a/lib/tdb/test/run-mutex-openflags2.c b/lib/tdb/test/run-mutex-openflags2.c
new file mode 100644
index 0000000..89603e6
--- /dev/null
+++ b/lib/tdb/test/run-mutex-openflags2.c
@@ -0,0 +1,146 @@
+#include "../common/tdb_private.h"
+#include "../common/io.c"
+#include "../common/tdb.c"
+#include "../common/lock.c"
+#include "../common/freelist.c"
+#include "../common/traverse.c"
+#include "../common/transaction.c"
+#include "../common/error.c"
+#include "../common/open.c"
+#include "../common/check.c"
+#include "../common/hash.c"
+#include "../common/mutex.c"
+#include "tap-interface.h"
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <poll.h>
+#include <stdarg.h>
+
+static TDB_DATA key, data;
+
+static void log_void(struct tdb_context *tdb, enum tdb_debug_level level,
+		     const char *fmt, ...)
+{
+}
+
+static void log_fn(struct tdb_context *tdb, enum tdb_debug_level level,
+		   const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+}
+
+static int do_child(int fd)
+{
+	struct tdb_context *tdb;
+	unsigned int log_count;
+	struct tdb_logging_context log_ctx = { log_fn, &log_count };
+	struct tdb_logging_context nolog_ctx = { log_void, NULL };
+	char c;
+
+	read(fd, &c, 1);
+
+	tdb = tdb_open_ex("mutex-openflags2.tdb", 0,
+			  TDB_DEFAULT,
+			  O_RDWR|O_CREAT, 0755, &nolog_ctx, NULL);
+	ok((tdb == NULL) && (errno == EINVAL), "TDB_DEFAULT without "
+	   "TDB_MUTEX_LOCKING should fail with EINVAL - %d", errno);
+
+	tdb = tdb_open_ex("mutex-openflags2.tdb", 0,
+			  TDB_CLEAR_IF_FIRST,
+			  O_RDWR|O_CREAT, 0755, &nolog_ctx, NULL);
+	ok((tdb == NULL) && (errno == EINVAL), "TDB_CLEAR_IF_FIRST without "
+	   "TDB_MUTEX_LOCKING should fail with EINVAL - %d", errno);
+
+	tdb = tdb_open_ex("mutex-openflags2.tdb", 0,
+			  TDB_CLEAR_IF_FIRST |
+			  TDB_MUTEX_LOCKING |
+			  TDB_INTERNAL,
+			  O_RDWR|O_CREAT, 0755, &nolog_ctx, NULL);
+	ok((tdb == NULL) && (errno == EINVAL), "TDB_MUTEX_LOCKING with "
+	   "TDB_INTERNAL should fail with EINVAL - %d", errno);
+
+	tdb = tdb_open_ex("mutex-openflags2.tdb", 0,
+			  TDB_CLEAR_IF_FIRST |
+			  TDB_MUTEX_LOCKING |
+			  TDB_NOMMAP,
+			  O_RDWR|O_CREAT, 0755, &nolog_ctx, NULL);
+	ok((tdb == NULL) && (errno == EINVAL), "TDB_MUTEX_LOCKING with "
+	   "TDB_NOMMAP should fail with EINVAL - %d", errno);
+
+	tdb = tdb_open_ex("mutex-openflags2.tdb", 0,
+			  TDB_CLEAR_IF_FIRST |
+			  TDB_MUTEX_LOCKING,
+			  O_RDONLY, 0755, &nolog_ctx, NULL);
+	ok((tdb != NULL), "TDB_MUTEX_LOCKING with "
+	   "O_RDONLY should work - %d", errno);
+	tdb_close(tdb);
+
+	tdb = tdb_open_ex("mutex-openflags2.tdb", 0,
+			  TDB_CLEAR_IF_FIRST |
+			  TDB_MUTEX_LOCKING,
+			  O_RDWR|O_CREAT, 0755, &log_ctx, NULL);
+	ok((tdb != NULL), "TDB_MUTEX_LOCKING with TDB_CLEAR_IF_FIRST"
+	   "TDB_NOMMAP should work - %d", errno);
+
+	return 0;
+}
+
+/* The code should barf on TDBs created with rwlocks. */
+int main(int argc, char *argv[])
+{
+	struct tdb_context *tdb;
+	unsigned int log_count;
+	struct tdb_logging_context log_ctx = { log_fn, &log_count };
+	struct tdb_logging_context nolog_ctx = { log_void, NULL };
+	int ret, status;
+	pid_t child, wait_ret;
+	int pipefd[2];
+	char c = 0;
+	bool runtime_support;
+
+	runtime_support = tdb_runtime_check_for_robust_mutexes();
+
+	ret = pipe(pipefd);
+	ok1(ret == 0);
+
+	key.dsize = strlen("hi");
+	key.dptr = discard_const_p(uint8_t, "hi");
+	data.dsize = strlen("world");
+	data.dptr = discard_const_p(uint8_t, "world");
+
+	if (!runtime_support) {
+		tdb = tdb_open_ex("mutex-openflags2.tdb", 0,
+				  TDB_CLEAR_IF_FIRST|
+				  TDB_MUTEX_LOCKING,
+				  O_RDWR|O_CREAT, 0755, &nolog_ctx, NULL);
+		ok((tdb == NULL) && (errno == ENOSYS), "TDB_MUTEX_LOCKING without "
+		   "runtime support should fail with ENOSYS - %d", errno);
+
+		skip(1, "No robust mutex support");
+		return exit_status();
+	}
+
+	child = fork();
+	if (child == 0) {
+		return do_child(pipefd[0]);
+	}
+
+	tdb = tdb_open_ex("mutex-openflags2.tdb", 0,
+			  TDB_CLEAR_IF_FIRST|
+			  TDB_MUTEX_LOCKING,
+			  O_RDWR|O_CREAT, 0755, &log_ctx, NULL);
+	ok((tdb != NULL), "tdb_open_ex with mutexes should succeed");
+
+	write(pipefd[1], &c, 1);
+
+	wait_ret = wait(&status);
+	ok((wait_ret == child) && (status == 0),
+	   "child should have exited correctly");
+
+	diag("done");
+	return exit_status();
+}