io: add QIOChannelCommand class
Add a QIOChannel subclass that is capable of performing I/O
to/from a separate process, via a pair of pipes. The command
can be used for unidirectional or bi-directional I/O.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
diff --git a/tests/.gitignore b/tests/.gitignore
index 810b4f0..cc9aeec 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -24,6 +24,8 @@
test-hbitmap
test-int128
test-iov
+test-io-channel-command
+test-io-channel-command.fifo
test-io-channel-file
test-io-channel-file.txt
test-io-channel-socket
diff --git a/tests/Makefile b/tests/Makefile
index 9d95350..40c3855 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -88,6 +88,7 @@
check-unit-y += tests/test-io-channel-socket$(EXESUF)
check-unit-y += tests/test-io-channel-file$(EXESUF)
check-unit-$(CONFIG_GNUTLS) += tests/test-io-channel-tls$(EXESUF)
+check-unit-y += tests/test-io-channel-command$(EXESUF)
check-block-$(CONFIG_POSIX) += tests/qemu-iotests-quick.sh
@@ -482,6 +483,8 @@
tests/test-io-channel-tls$(EXESUF): tests/test-io-channel-tls.o \
tests/crypto-tls-x509-helpers.o tests/pkix_asn1_tab.o \
tests/io-channel-helpers.o $(test-io-obj-y)
+tests/test-io-channel-command$(EXESUF): tests/test-io-channel-command.o \
+ tests/io-channel-helpers.o $(test-io-obj-y)
libqos-obj-y = tests/libqos/pci.o tests/libqos/fw_cfg.o tests/libqos/malloc.o
libqos-obj-y += tests/libqos/i2c.o tests/libqos/libqos.o
diff --git a/tests/test-io-channel-command.c b/tests/test-io-channel-command.c
new file mode 100644
index 0000000..03cac36
--- /dev/null
+++ b/tests/test-io-channel-command.c
@@ -0,0 +1,129 @@
+/*
+ * QEMU I/O channel command test
+ *
+ * Copyright (c) 2015 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "io/channel-command.h"
+#include "io-channel-helpers.h"
+
+#ifndef WIN32
+static void test_io_channel_command_fifo(bool async)
+{
+#define TEST_FIFO "tests/test-io-channel-command.fifo"
+ QIOChannel *src, *dst;
+ QIOChannelTest *test;
+ char *srcfifo = g_strdup_printf("PIPE:%s,wronly", TEST_FIFO);
+ char *dstfifo = g_strdup_printf("PIPE:%s,rdonly", TEST_FIFO);
+ const char *srcargv[] = {
+ "/bin/socat", "-", srcfifo, NULL,
+ };
+ const char *dstargv[] = {
+ "/bin/socat", dstfifo, "-", NULL,
+ };
+
+ unlink(TEST_FIFO);
+ if (access("/bin/socat", X_OK) < 0) {
+ return; /* Pretend success if socat is not present */
+ }
+ if (mkfifo(TEST_FIFO, 0600) < 0) {
+ abort();
+ }
+ src = QIO_CHANNEL(qio_channel_command_new_spawn(srcargv,
+ O_WRONLY,
+ &error_abort));
+ dst = QIO_CHANNEL(qio_channel_command_new_spawn(dstargv,
+ O_RDONLY,
+ &error_abort));
+
+ test = qio_channel_test_new();
+ qio_channel_test_run_threads(test, async, src, dst);
+ qio_channel_test_validate(test);
+
+ object_unref(OBJECT(src));
+ object_unref(OBJECT(dst));
+
+ g_free(srcfifo);
+ g_free(dstfifo);
+ unlink(TEST_FIFO);
+}
+
+
+static void test_io_channel_command_fifo_async(void)
+{
+ test_io_channel_command_fifo(true);
+}
+
+static void test_io_channel_command_fifo_sync(void)
+{
+ test_io_channel_command_fifo(false);
+}
+
+
+static void test_io_channel_command_echo(bool async)
+{
+ QIOChannel *ioc;
+ QIOChannelTest *test;
+ const char *socatargv[] = {
+ "/bin/socat", "-", "-", NULL,
+ };
+
+ if (access("/bin/socat", X_OK) < 0) {
+ return; /* Pretend success if socat is not present */
+ }
+
+ ioc = QIO_CHANNEL(qio_channel_command_new_spawn(socatargv,
+ O_RDWR,
+ &error_abort));
+ test = qio_channel_test_new();
+ qio_channel_test_run_threads(test, async, ioc, ioc);
+ qio_channel_test_validate(test);
+
+ object_unref(OBJECT(ioc));
+}
+
+
+static void test_io_channel_command_echo_async(void)
+{
+ test_io_channel_command_echo(true);
+}
+
+static void test_io_channel_command_echo_sync(void)
+{
+ test_io_channel_command_echo(false);
+}
+#endif
+
+int main(int argc, char **argv)
+{
+ module_call_init(MODULE_INIT_QOM);
+
+ g_test_init(&argc, &argv, NULL);
+
+#ifndef WIN32
+ g_test_add_func("/io/channel/command/fifo/sync",
+ test_io_channel_command_fifo_sync);
+ g_test_add_func("/io/channel/command/fifo/async",
+ test_io_channel_command_fifo_async);
+ g_test_add_func("/io/channel/command/echo/sync",
+ test_io_channel_command_echo_sync);
+ g_test_add_func("/io/channel/command/echo/async",
+ test_io_channel_command_echo_async);
+#endif
+
+ return g_test_run();
+}
