test-runner: Add option to start emulator

This adds an option (-l/--emulator) to start btvirt before processing
the command which is convenient to runs tools like bluetoothctl:

  sudo tools/test-runner -l -d -k <pathto/bzImage> --
  client/bluetoothctl power on

Signed-off-by: Manika Shrivastava <manika.sh@samsung.com>
Signed-off-by: Ayush Garg <ayush.garg@samsung.com>

diff --git a/tools/test-runner.c b/tools/test-runner.c
index 80d9104..49fe825 100755 (executable)
--- a/tools/test-runner.c
+++ b/tools/test-runner.c
@@ -46,6 +46,7 @@ static int test_argc;
 
 static bool run_auto = false;
 static bool start_dbus = false;
+static bool start_emulator = false;
 static bool start_monitor = false;
 static int num_devs = 0;
 static const char *qemu_binary = NULL;
@@ -248,9 +249,10 @@ static void start_qemu(void)
                                "acpi=off pci=noacpi noapic quiet ro init=%s "
                                "bluetooth.enable_ecred=1"
                                "TESTHOME=%s TESTDBUS=%u TESTMONITOR=%u "
-                               "TESTDEVS=%d TESTAUTO=%u TESTARGS=\'%s\'",
+                               "TESTEMULATOR=%u TESTDEVS=%d TESTAUTO=%u "
+                               "TESTARGS=\'%s\'",
                                initcmd, cwd, start_dbus, start_monitor,
-                               num_devs, run_auto, testargs);
+                               start_emulator, num_devs, run_auto, testargs);
 
        argv = alloca(sizeof(qemu_argv) +
                                (sizeof(char *) * (4 + (num_devs * 4))));
@@ -599,6 +601,58 @@ static pid_t start_btmon(const char *home)
        return pid;
 }
 
+static const char *btvirt_table[] = {
+       "btvirt",
+       "emulator/btvirt",
+       "/usr/sbin/btvirt",
+       NULL
+};
+
+static pid_t start_btvirt(void)
+{
+       const char *btvirt = NULL;
+       char *argv[3], *envp[2];
+       pid_t pid;
+       int i;
+
+       for (i = 0; btvirt_table[i]; i++) {
+               struct stat st;
+
+       if (!stat(btvirt_table[i], &st)) {
+               btvirt = btvirt_table[i];
+               break;
+               }
+       }
+
+       if (!btvirt) {
+               fprintf(stderr, "Failed to locate btvirt binary\n");
+               return -1;
+       }
+
+       printf("Using %s\n", btvirt);
+
+       argv[0] = (char *) btvirt;
+       argv[1] = "-l";
+       argv[2] = NULL;
+
+       printf("Starting Emulator\n");
+
+       pid = fork();
+       if (pid < 0) {
+               perror("Failed to fork new process");
+               return -1;
+       }
+
+       if (pid == 0) {
+               execve(argv[0], argv, envp);
+               exit(EXIT_SUCCESS);
+       }
+
+       printf("Emulator process %d created\n", pid);
+
+       return pid;
+}
+
 static void run_command(char *cmdname, char *home)
 {
 #ifdef TIZEN_FEATURE_BLUEZ_MODIFY
@@ -608,7 +662,7 @@ static void run_command(char *cmdname, char *home)
 #endif
        int pos = 0, idx = 0;
        int serial_fd;
-       pid_t pid, dbus_pid, daemon_pid, monitor_pid;
+       pid_t pid, dbus_pid, daemon_pid, monitor_pid, emulator_pid;
 
        if (num_devs) {
                const char *node = "/dev/ttyS1";
@@ -638,6 +692,11 @@ static void run_command(char *cmdname, char *home)
        else
                monitor_pid = -1;
 
+       if (start_emulator)
+               emulator_pid = start_btvirt();
+       else
+               emulator_pid = -1;
+
 start_next:
        if (run_auto) {
                if (chdir(home + 5) < 0) {
@@ -738,6 +797,11 @@ start_next:
                        daemon_pid = -1;
                }
 
+               if (corpse == emulator_pid) {
+                       printf("Bluetooth emulator terminated\n");
+                       emulator_pid = -1;
+               }
+
                if (corpse == monitor_pid) {
                        printf("Bluetooth monitor terminated\n");
                        monitor_pid = -1;
@@ -758,6 +822,9 @@ start_next:
        if (dbus_pid > 0)
                kill(dbus_pid, SIGTERM);
 
+       if (emulator_pid > 0)
+               kill(dbus_pid, SIGTERM);
+
        if (monitor_pid > 0)
                kill(monitor_pid, SIGTERM);
 
@@ -825,6 +892,12 @@ static void run_tests(void)
                start_monitor = true;
        }
 
+       ptr = strstr(cmdline, "TESTEMULATOR=1");
+       if (ptr) {
+               printf("Emulator requested\n");
+               start_emulator = true;
+       }
+
        ptr = strstr(cmdline, "TESTHOME=");
        if (ptr) {
                home = ptr + 4;
@@ -856,6 +929,7 @@ static const struct option main_options[] = {
        { "auto",    no_argument,       NULL, 'a' },
        { "unix",    no_argument,       NULL, 'u' },
        { "dbus",    no_argument,       NULL, 'd' },
+       { "emulator", no_argument,      NULL, 'l' },
        { "monitor", no_argument,       NULL, 'm' },
        { "qemu",    required_argument, NULL, 'q' },
        { "kernel",  required_argument, NULL, 'k' },
@@ -878,7 +952,8 @@ int main(int argc, char *argv[])
        for (;;) {
                int opt;
 
-               opt = getopt_long(argc, argv, "audmq:k:vh", main_options, NULL);
+               opt = getopt_long(argc, argv, "audlmq:k:vh", main_options,
+                                                               NULL);
                if (opt < 0)
                        break;
 
@@ -892,6 +967,9 @@ int main(int argc, char *argv[])
                case 'd':
                        start_dbus = true;
                        break;
+               case 'l':
+                       start_emulator = true;
+                       break;
                case 'm':
                        start_monitor = true;
                        break;