return ctx.ret.kmsgs; /* caller will free */
}
+struct ping_daemon_ctx {
+ /* This flag is set by the callbacks, so we know we've done
+ * the callbacks as expected, and in the right sequence.
+ * 0 = not called, 1 = reply_cb called.
+ */
+ int cb_sequence;
+ struct guestfs_message_header hdr;
+ struct guestfs_message_error err;
+};
+
+static void ping_daemon_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+ guestfs_main_loop *ml = guestfs_get_main_loop (g);
+ struct ping_daemon_ctx *ctx = (struct ping_daemon_ctx *) data;
+
+ /* This should definitely not happen. */
+ if (ctx->cb_sequence != 0) {
+ ctx->cb_sequence = 9999;
+ error (g, "%s: internal error: reply callback called twice", "guestfs_ping_daemon");
+ return;
+ }
+
+ ml->main_loop_quit (ml, g);
+
+ if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+ error (g, "%s: failed to parse reply header", "guestfs_ping_daemon");
+ return;
+ }
+ if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+ if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+ error (g, "%s: failed to parse reply error", "guestfs_ping_daemon");
+ return;
+ }
+ goto done;
+ }
+ done:
+ ctx->cb_sequence = 1;
+}
+
+int guestfs_ping_daemon (guestfs_h *g)
+{
+ struct ping_daemon_ctx ctx;
+ guestfs_main_loop *ml = guestfs_get_main_loop (g);
+ int serial;
+
+ if (check_state (g, "guestfs_ping_daemon") == -1) return -1;
+ guestfs_set_busy (g);
+
+ memset (&ctx, 0, sizeof ctx);
+
+ serial = guestfs__send_sync (g, GUESTFS_PROC_PING_DAEMON, NULL, NULL);
+ if (serial == -1) {
+ guestfs_set_ready (g);
+ return -1;
+ }
+
+ guestfs__switch_to_receiving (g);
+ ctx.cb_sequence = 0;
+ guestfs_set_reply_callback (g, ping_daemon_reply_cb, &ctx);
+ (void) ml->main_loop_run (ml, g);
+ guestfs_set_reply_callback (g, NULL, NULL);
+ if (ctx.cb_sequence != 1) {
+ error (g, "%s reply failed, see earlier error messages", "guestfs_ping_daemon");
+ guestfs_set_ready (g);
+ return -1;
+ }
+
+ if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_PING_DAEMON, serial) == -1) {
+ guestfs_set_ready (g);
+ return -1;
+ }
+
+ if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+ error (g, "%s", ctx.err.error_message);
+ guestfs_set_ready (g);
+ return -1;
+ }
+
+ guestfs_set_ready (g);
+ return 0;
+}
+
+struct equal_ctx {
+ /* This flag is set by the callbacks, so we know we've done
+ * the callbacks as expected, and in the right sequence.
+ * 0 = not called, 1 = reply_cb called.
+ */
+ int cb_sequence;
+ struct guestfs_message_header hdr;
+ struct guestfs_message_error err;
+ struct guestfs_equal_ret ret;
+};
+
+static void equal_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+ guestfs_main_loop *ml = guestfs_get_main_loop (g);
+ struct equal_ctx *ctx = (struct equal_ctx *) data;
+
+ /* This should definitely not happen. */
+ if (ctx->cb_sequence != 0) {
+ ctx->cb_sequence = 9999;
+ error (g, "%s: internal error: reply callback called twice", "guestfs_equal");
+ return;
+ }
+
+ ml->main_loop_quit (ml, g);
+
+ if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+ error (g, "%s: failed to parse reply header", "guestfs_equal");
+ return;
+ }
+ if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+ if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+ error (g, "%s: failed to parse reply error", "guestfs_equal");
+ return;
+ }
+ goto done;
+ }
+ if (!xdr_guestfs_equal_ret (xdr, &ctx->ret)) {
+ error (g, "%s: failed to parse reply", "guestfs_equal");
+ return;
+ }
+ done:
+ ctx->cb_sequence = 1;
+}
+
+int guestfs_equal (guestfs_h *g,
+ const char *file1,
+ const char *file2)
+{
+ struct guestfs_equal_args args;
+ struct equal_ctx ctx;
+ guestfs_main_loop *ml = guestfs_get_main_loop (g);
+ int serial;
+
+ if (check_state (g, "guestfs_equal") == -1) return -1;
+ guestfs_set_busy (g);
+
+ memset (&ctx, 0, sizeof ctx);
+
+ args.file1 = (char *) file1;
+ args.file2 = (char *) file2;
+ serial = guestfs__send_sync (g, GUESTFS_PROC_EQUAL,
+ (xdrproc_t) xdr_guestfs_equal_args, (char *) &args);
+ if (serial == -1) {
+ guestfs_set_ready (g);
+ return -1;
+ }
+
+ guestfs__switch_to_receiving (g);
+ ctx.cb_sequence = 0;
+ guestfs_set_reply_callback (g, equal_reply_cb, &ctx);
+ (void) ml->main_loop_run (ml, g);
+ guestfs_set_reply_callback (g, NULL, NULL);
+ if (ctx.cb_sequence != 1) {
+ error (g, "%s reply failed, see earlier error messages", "guestfs_equal");
+ guestfs_set_ready (g);
+ return -1;
+ }
+
+ if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_EQUAL, serial) == -1) {
+ guestfs_set_ready (g);
+ return -1;
+ }
+
+ if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+ error (g, "%s", ctx.err.error_message);
+ guestfs_set_ready (g);
+ return -1;
+ }
+
+ guestfs_set_ready (g);
+ return ctx.ret.equality;
+}
+