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vhost-user-test: wrap server in TestServer struct 

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 <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Thibaut Collet <thibaut.collet@6wind.com>
This commit is contained in:
Marc-André Lureau 2015-10-09 17:17:37 +02:00 committed by Michael S. Tsirkin
parent 82755ff202
commit ae31fb5491
1 changed files with 89 additions and 50 deletions
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139
tests/vhost-user-test.c
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@ -108,10 +108,16 @@ static VhostUserMsg m __attribute__ ((unused));
#define VHOST_USER_VERSION (0x1) #define VHOST_USER_VERSION (0x1)
/*****************************************************************************/ /*****************************************************************************/
int fds_num = 0, fds[VHOST_MEMORY_MAX_NREGIONS]; typedef struct TestServer {
static VhostUserMemory memory; gchar *socket_path;
static CompatGMutex data_mutex; gchar *chr_name;
static CompatGCond data_cond; 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) #if !GLIB_CHECK_VERSION(2, 32, 0)
static gboolean g_cond_wait_until(CompatGCond cond, CompatGMutex mutex, 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 #endif
static void wait_for_fds(void) static void wait_for_fds(TestServer *s)
{ {
gint64 end_time; 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; end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND;
while (!fds_num) { while (!s->fds_num) {
if (!g_cond_wait_until(&data_cond, &data_mutex, end_time)) { if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) {
/* timeout has passed */ /* timeout has passed */
g_assert(fds_num); g_assert(s->fds_num);
break; break;
} }
} }
/* check for sanity */ /* check for sanity */
g_assert_cmpint(fds_num, >, 0); g_assert_cmpint(s->fds_num, >, 0);
g_assert_cmpint(fds_num, ==, memory.nregions); 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; uint32_t *guest_mem;
int i, j; int i, j;
size_t size; size_t size;
wait_for_fds(); wait_for_fds(s);
g_mutex_lock(&data_mutex); g_mutex_lock(&s->data_mutex);
/* iterate all regions */ /* 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*/ /* 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; 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, 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); 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++) { 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]; uint32_t b = guest_mem[j];
g_assert_cmpint(a, ==, b); 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) 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) static void chr_read(void *opaque, const uint8_t *buf, int size)
{ {
CharDriverState *chr = opaque; TestServer *s = opaque;
CharDriverState *chr = s->chr;
VhostUserMsg msg; VhostUserMsg msg;
uint8_t *p = (uint8_t *) &msg; uint8_t *p = (uint8_t *) &msg;
int fd; int fd;
@ -214,12 +222,12 @@ static void chr_read(void *opaque, const uint8_t *buf, int size)
return; return;
} }
g_mutex_lock(&data_mutex); g_mutex_lock(&s->data_mutex);
memcpy(p, buf, VHOST_USER_HDR_SIZE); memcpy(p, buf, VHOST_USER_HDR_SIZE);
if (msg.size) { if (msg.size) {
p += VHOST_USER_HDR_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) { 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: case VHOST_USER_SET_MEM_TABLE:
/* received the mem table */ /* received the mem table */
memcpy(&memory, &msg.memory, sizeof(msg.memory)); memcpy(&s->memory, &msg.memory, sizeof(msg.memory));
fds_num = qemu_chr_fe_get_msgfds(chr, fds, sizeof(fds) / sizeof(int)); s->fds_num = qemu_chr_fe_get_msgfds(chr, s->fds, G_N_ELEMENTS(s->fds));
/* signal the test that it can continue */ /* signal the test that it can continue */
g_cond_signal(&data_cond); g_cond_signal(&s->data_cond);
break; break;
case VHOST_USER_SET_VRING_KICK: case VHOST_USER_SET_VRING_KICK:
@ -278,7 +286,8 @@ static void chr_read(void *opaque, const uint8_t *buf, int size)
default: default:
break; break;
} }
g_mutex_unlock(&data_mutex);
g_mutex_unlock(&s->data_mutex);
} }
static const char *init_hugepagefs(const char *path) static const char *init_hugepagefs(const char *path)
@ -308,14 +317,52 @@ static const char *init_hugepagefs(const char *path)
return 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) int main(int argc, char **argv)
{ {
QTestState *s = NULL; QTestState *s = NULL;
CharDriverState *chr = NULL; TestServer *server = NULL;
const char *hugefs; const char *hugefs;
char *socket_path = 0; char *qemu_cmd = NULL;
char *qemu_cmd = 0;
char *chr_path = 0;
int ret; int ret;
char template[] = "/tmp/vhost-test-XXXXXX"; char template[] = "/tmp/vhost-test-XXXXXX";
const char *tmpfs; const char *tmpfs;
@ -324,10 +371,11 @@ int main(int argc, char **argv)
g_test_init(&argc, &argv, NULL); g_test_init(&argc, &argv, NULL);
module_call_init(MODULE_INIT_QOM); module_call_init(MODULE_INIT_QOM);
qemu_add_opts(&qemu_chardev_opts);
tmpfs = mkdtemp(template); tmpfs = mkdtemp(template);
if (!tmpfs) { 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); g_assert(tmpfs);
@ -339,25 +387,17 @@ int main(int argc, char **argv)
root = tmpfs; root = tmpfs;
} }
socket_path = g_strdup_printf("%s/vhost.sock", tmpfs); server = test_server_new(tmpfs, "test");
/* 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);
/* run the main loop thread so the chardev may operate */ /* 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); 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); s = qtest_start(qemu_cmd);
g_free(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(); ret = g_test_run();
@ -366,8 +406,7 @@ int main(int argc, char **argv)
} }
/* cleanup */ /* cleanup */
unlink(socket_path); test_server_free(server);
g_free(socket_path);
ret = rmdir(tmpfs); ret = rmdir(tmpfs);
if (ret != 0) { if (ret != 0) {