From 11ddc6c7ef703d7d21f9414a49767d01e021b2e1 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 16 Nov 2015 14:33:10 +0100 Subject: [PATCH 34/44] vhost-user-test: wrap server in TestServer struct MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Message-id: <1447684235-15638-28-git-send-email-mst@redhat.com> Patchwork-id: 68374 O-Subject: [PATCH RHEV 7.3/7.2.z v2 27/36] vhost-user-test: wrap server in TestServer struct Bugzilla: 1279388 RH-Acked-by: Xiao Wang RH-Acked-by: Victor Kaplansky RH-Acked-by: Marcel Apfelbaum RH-Acked-by: Marc-André Lureau From: Marc-André Lureau In the coming patches, a test will use several servers simultaneously. Wrap the server in a struct, out of the global scope. Signed-off-by: Marc-André Lureau Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Tested-by: Thibaut Collet (cherry picked from commit ae31fb5491493c82fface26f7902da7130b70575) Signed-off-by: Miroslav Rezanina --- tests/vhost-user-test.c | 139 +++++++++++++++++++++++++++++++----------------- 1 file changed, 89 insertions(+), 50 deletions(-) diff --git a/tests/vhost-user-test.c b/tests/vhost-user-test.c index 0271fc5..c457f54 100644 --- a/tests/vhost-user-test.c +++ b/tests/vhost-user-test.c @@ -108,10 +108,16 @@ static VhostUserMsg m __attribute__ ((unused)); #define VHOST_USER_VERSION (0x1) /*****************************************************************************/ -int fds_num = 0, fds[VHOST_MEMORY_MAX_NREGIONS]; -static VhostUserMemory memory; -static CompatGMutex data_mutex; -static CompatGCond data_cond; +typedef struct TestServer { + gchar *socket_path; + gchar *chr_name; + CharDriverState *chr; + int fds_num; + int fds[VHOST_MEMORY_MAX_NREGIONS]; + VhostUserMemory memory; + GMutex data_mutex; + GCond data_cond; +} TestServer; #if !GLIB_CHECK_VERSION(2, 32, 0) static gboolean g_cond_wait_until(CompatGCond cond, CompatGMutex mutex, @@ -126,67 +132,68 @@ static gboolean g_cond_wait_until(CompatGCond cond, CompatGMutex mutex, } #endif -static void wait_for_fds(void) +static void wait_for_fds(TestServer *s) { gint64 end_time; - g_mutex_lock(&data_mutex); + g_mutex_lock(&s->data_mutex); end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND; - while (!fds_num) { - if (!g_cond_wait_until(&data_cond, &data_mutex, end_time)) { + while (!s->fds_num) { + if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) { /* timeout has passed */ - g_assert(fds_num); + g_assert(s->fds_num); break; } } /* check for sanity */ - g_assert_cmpint(fds_num, >, 0); - g_assert_cmpint(fds_num, ==, memory.nregions); + g_assert_cmpint(s->fds_num, >, 0); + g_assert_cmpint(s->fds_num, ==, s->memory.nregions); - g_mutex_unlock(&data_mutex); + g_mutex_unlock(&s->data_mutex); } -static void read_guest_mem(void) +static void read_guest_mem(TestServer *s) { uint32_t *guest_mem; int i, j; size_t size; - wait_for_fds(); + wait_for_fds(s); - g_mutex_lock(&data_mutex); + g_mutex_lock(&s->data_mutex); /* iterate all regions */ - for (i = 0; i < fds_num; i++) { + for (i = 0; i < s->fds_num; i++) { /* We'll check only the region statring at 0x0*/ - if (memory.regions[i].guest_phys_addr != 0x0) { + if (s->memory.regions[i].guest_phys_addr != 0x0) { continue; } - g_assert_cmpint(memory.regions[i].memory_size, >, 1024); + g_assert_cmpint(s->memory.regions[i].memory_size, >, 1024); - size = memory.regions[i].memory_size + memory.regions[i].mmap_offset; + size = s->memory.regions[i].memory_size + + s->memory.regions[i].mmap_offset; guest_mem = mmap(0, size, PROT_READ | PROT_WRITE, - MAP_SHARED, fds[i], 0); + MAP_SHARED, s->fds[i], 0); g_assert(guest_mem != MAP_FAILED); - guest_mem += (memory.regions[i].mmap_offset / sizeof(*guest_mem)); + guest_mem += (s->memory.regions[i].mmap_offset / sizeof(*guest_mem)); for (j = 0; j < 256; j++) { - uint32_t a = readl(memory.regions[i].guest_phys_addr + j*4); + uint32_t a = readl(s->memory.regions[i].guest_phys_addr + j*4); uint32_t b = guest_mem[j]; g_assert_cmpint(a, ==, b); } - munmap(guest_mem, memory.regions[i].memory_size); + munmap(guest_mem, s->memory.regions[i].memory_size); } - g_mutex_unlock(&data_mutex); + g_mutex_unlock(&s->data_mutex); } static void *thread_function(void *data) @@ -204,7 +211,8 @@ static int chr_can_read(void *opaque) static void chr_read(void *opaque, const uint8_t *buf, int size) { - CharDriverState *chr = opaque; + TestServer *s = opaque; + CharDriverState *chr = s->chr; VhostUserMsg msg; uint8_t *p = (uint8_t *) &msg; int fd; @@ -214,12 +222,12 @@ static void chr_read(void *opaque, const uint8_t *buf, int size) return; } - g_mutex_lock(&data_mutex); + g_mutex_lock(&s->data_mutex); memcpy(p, buf, VHOST_USER_HDR_SIZE); if (msg.size) { p += VHOST_USER_HDR_SIZE; - qemu_chr_fe_read_all(chr, p, msg.size); + g_assert_cmpint(qemu_chr_fe_read_all(chr, p, msg.size), ==, msg.size); } switch (msg.request) { @@ -257,11 +265,11 @@ static void chr_read(void *opaque, const uint8_t *buf, int size) case VHOST_USER_SET_MEM_TABLE: /* received the mem table */ - memcpy(&memory, &msg.memory, sizeof(msg.memory)); - fds_num = qemu_chr_fe_get_msgfds(chr, fds, sizeof(fds) / sizeof(int)); + memcpy(&s->memory, &msg.memory, sizeof(msg.memory)); + s->fds_num = qemu_chr_fe_get_msgfds(chr, s->fds, G_N_ELEMENTS(s->fds)); /* signal the test that it can continue */ - g_cond_signal(&data_cond); + g_cond_signal(&s->data_cond); break; case VHOST_USER_SET_VRING_KICK: @@ -278,7 +286,8 @@ static void chr_read(void *opaque, const uint8_t *buf, int size) default: break; } - g_mutex_unlock(&data_mutex); + + g_mutex_unlock(&s->data_mutex); } static const char *init_hugepagefs(const char *path) @@ -308,14 +317,52 @@ static const char *init_hugepagefs(const char *path) return path; } +static TestServer *test_server_new(const gchar *tmpfs, const gchar *name) +{ + TestServer *server = g_new0(TestServer, 1); + gchar *chr_path; + + server->socket_path = g_strdup_printf("%s/%s.sock", tmpfs, name); + + chr_path = g_strdup_printf("unix:%s,server,nowait", server->socket_path); + server->chr_name = g_strdup_printf("chr-%s", name); + server->chr = qemu_chr_new(server->chr_name, chr_path, NULL); + g_free(chr_path); + + qemu_chr_add_handlers(server->chr, chr_can_read, chr_read, NULL, server); + + g_mutex_init(&server->data_mutex); + g_cond_init(&server->data_cond); + + return server; +} + +#define GET_QEMU_CMD(s, root) \ + g_strdup_printf(QEMU_CMD, (root), (s)->socket_path) + + +static void test_server_free(TestServer *server) +{ + int i; + + qemu_chr_delete(server->chr); + + for (i = 0; i < server->fds_num; i++) { + close(server->fds[i]); + } + + unlink(server->socket_path); + g_free(server->socket_path); + + g_free(server); +} + int main(int argc, char **argv) { QTestState *s = NULL; - CharDriverState *chr = NULL; + TestServer *server = NULL; const char *hugefs; - char *socket_path = 0; - char *qemu_cmd = 0; - char *chr_path = 0; + char *qemu_cmd = NULL; int ret; char template[] = "/tmp/vhost-test-XXXXXX"; const char *tmpfs; @@ -324,10 +371,11 @@ int main(int argc, char **argv) g_test_init(&argc, &argv, NULL); module_call_init(MODULE_INIT_QOM); + qemu_add_opts(&qemu_chardev_opts); tmpfs = mkdtemp(template); if (!tmpfs) { - g_test_message("mkdtemp on path (%s): %s\n", template, strerror(errno)); + g_test_message("mkdtemp on path (%s): %s\n", template, strerror(errno)); } g_assert(tmpfs); @@ -339,25 +387,17 @@ int main(int argc, char **argv) root = tmpfs; } - socket_path = g_strdup_printf("%s/vhost.sock", tmpfs); - - /* create char dev and add read handlers */ - qemu_add_opts(&qemu_chardev_opts); - chr_path = g_strdup_printf("unix:%s,server,nowait", socket_path); - chr = qemu_chr_new("chr0", chr_path, NULL); - g_free(chr_path); - qemu_chr_add_handlers(chr, chr_can_read, chr_read, NULL, chr); + server = test_server_new(tmpfs, "test"); /* run the main loop thread so the chardev may operate */ - g_mutex_init(&data_mutex); - g_cond_init(&data_cond); g_thread_new(NULL, thread_function, NULL); - qemu_cmd = g_strdup_printf(QEMU_CMD, root, socket_path); + qemu_cmd = GET_QEMU_CMD(server, root); + s = qtest_start(qemu_cmd); g_free(qemu_cmd); - qtest_add_func("/vhost-user/read-guest-mem", read_guest_mem); + qtest_add_data_func("/vhost-user/read-guest-mem", server, read_guest_mem); ret = g_test_run(); @@ -366,8 +406,7 @@ int main(int argc, char **argv) } /* cleanup */ - unlink(socket_path); - g_free(socket_path); + test_server_free(server); ret = rmdir(tmpfs); if (ret != 0) { -- 1.8.3.1