WebSVN – HelenOS – Diff – /trunk/uspace/app/init/init.c

 /*
  * Copyright (c) 2005 Martin Decky
  * All rights reserved.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
+ *
  * - Redistributions of source code must retain the above copyright
  *   notice, this list of conditions and the following disclaimer.
  * - Redistributions in binary form must reproduce the above copyright
  *   notice, this list of conditions and the following disclaimer in the
  *   documentation and/or other materials provided with the distribution.
  * - The name of the author may not be used to endorse or promote products
  *   derived from this software without specific prior written permission.
+ *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 /** @addtogroup init Init
  * @brief Init process for user space environment configuration.
  * @{
  */
 /**
  * @file
  */
 #include <stdio.h>
 #include <unistd.h>
 #include <ipc/ipc.h>
 #include <vfs/vfs.h>
 #include <bool.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <task.h>
 #include <malloc.h>
 #include <macros.h>
 #include <string.h>
 #include <devmap.h>
 #include "init.h"
 static void info_print(void)
+{
     printf(NAME ": HelenOS init\n");
+}
 static bool mount_root(const char *fstype)
+{
-    int rc = -1;
     char *opts = "";
     const char *root_dev = "initrd";
     if (str_cmp(fstype, "tmpfs") == 0)
         opts = "restore";
-    while (rc < 0) {
-        rc = mount(fstype, "/", root_dev, opts, IPC_FLAG_BLOCKING);
+    int rc = mount(fstype, "/", root_dev, opts, IPC_FLAG_BLOCKING);
-        switch (rc) {
+    switch (rc) {
-        case EOK:
+    case EOK:
-            printf(NAME ": Root filesystem mounted, %s at %s\n",
+        printf(NAME ": Root filesystem mounted, %s at %s\n",
-                fstype, root_dev);
+            fstype, root_dev);
-            break;
+        break;
-        case EBUSY:
+    case EBUSY:
-            printf(NAME ": Root filesystem already mounted\n");
+        printf(NAME ": Root filesystem already mounted\n");
-            break;
+        return false;
-        case ELIMIT:
+    case ELIMIT:
-            printf(NAME ": Unable to mount root filesystem\n");
+        printf(NAME ": Unable to mount root filesystem\n");
-            return false;
+        return false;
-        case ENOENT:
+    case ENOENT:
-            printf(NAME ": Unknown filesystem type (%s)\n", fstype);
+        printf(NAME ": Unknown filesystem type (%s)\n", fstype);
-            return false;
+        return false;
-        }
+    default:
+        printf(NAME ": Error mounting root filesystem (%d)\n", rc);
+        return false;
+    }
     return true;
+}
 static bool mount_devfs(void)
+{
+    char null[MAX_DEVICE_NAME];
-    int rc = -1;
+    int null_id = devmap_null_create();
-    while (rc < 0) {
+    if (null_id == -1) {
+        printf(NAME ": Unable to create null device\n");
+        return false;
+    }
+    snprintf(null, MAX_DEVICE_NAME, "null%d", null_id);
-        rc = mount("devfs", "/dev", "null", "", IPC_FLAG_BLOCKING);
+    int rc = mount("devfs", "/dev", null, "", IPC_FLAG_BLOCKING);
-        switch (rc) {
+    switch (rc) {
-        case EOK:
+    case EOK:
-            printf(NAME ": Device filesystem mounted\n");
+        printf(NAME ": Device filesystem mounted\n");
-            break;
+        break;
-        case EBUSY:
+    case EBUSY:
-            printf(NAME ": Device filesystem already mounted\n");
+        printf(NAME ": Device filesystem already mounted\n");
+        devmap_null_destroy(null_id);
-            break;
+        return false;
-        case ELIMIT:
+    case ELIMIT:
-            printf(NAME ": Unable to mount device filesystem\n");
+        printf(NAME ": Unable to mount device filesystem\n");
+        devmap_null_destroy(null_id);
-            return false;
+        return false;
-        case ENOENT:
+    case ENOENT:
-            printf(NAME ": Unknown filesystem type (devfs)\n");
+        printf(NAME ": Unknown filesystem type (devfs)\n");
+        devmap_null_destroy(null_id);
-            return false;
+        return false;
-        }
+    default:
+        printf(NAME ": Error mounting device filesystem (%d)\n", rc);
+        devmap_null_destroy(null_id);
+        return false;
+    }
     return true;
+}
 static void spawn(char *fname)
+{
     char *argv[2];
     printf(NAME ": Spawning %s\n", fname);
     argv[0] = fname;
     argv[1] = NULL;
     if (!task_spawn(fname, argv))
         printf(NAME ": Error spawning %s\n", fname);
+}
 static void getvc(char *dev, char *app)
+{
     char *argv[4];
     char vc[MAX_DEVICE_NAME];
     int rc;
     snprintf(vc, MAX_DEVICE_NAME, "/dev/%s", dev);
     printf(NAME ": Spawning getvc on %s\n", vc);
     dev_handle_t handle;
     rc = devmap_device_get_handle(dev, &handle, IPC_FLAG_BLOCKING);
     if (rc == EOK) {
         argv[0] = "/app/getvc";
         argv[1] = vc;
         argv[2] = app;
         argv[3] = NULL;
         if (!task_spawn("/app/getvc", argv))
             printf(NAME ": Error spawning getvc on %s\n", vc);
     } else {
         printf(NAME ": Error waiting on %s\n", vc);
+    }
+}
 void mount_data(void)
+{
     int rc;
     printf("Trying to mount disk0 on /data... ");
     fflush(stdout);
     rc = mount("fat", "/data", "disk0", "wtcache", 0);
     if (rc == EOK)
         printf("OK\n");
     else
         printf("Failed\n");
+}
 int main(int argc, char *argv[])
+{
     info_print();
     if (!mount_root(STRING(RDFMT))) {
         printf(NAME ": Exiting\n");
         return -1;
+    }
     spawn("/srv/devfs");
     if (!mount_devfs()) {
         printf(NAME ": Exiting\n");
         return -2;
+    }
     spawn("/srv/fb");
     spawn("/srv/kbd");
     spawn("/srv/console");
     spawn("/srv/fhc");
     spawn("/srv/obio");
     spawn("/srv/ata_bd");
     spawn("/srv/gxe_bd");
-    usleep(250000);
+    usleep(250000); // FIXME
     mount_data();
     getvc("vc0", "/app/bdsh");
     getvc("vc1", "/app/bdsh");
     getvc("vc2", "/app/bdsh");
     getvc("vc3", "/app/bdsh");
     getvc("vc4", "/app/bdsh");
     getvc("vc5", "/app/bdsh");
     getvc("vc6", "/app/klog");
     return 0;
+}
 /** @}
  */

Subversion Repositories HelenOS

(root)/trunk/uspace/app/init/init.c – Rev 4573 → 4592