Changeset 99c2c69e in mainline for uspace/lib/c/generic/vfs/vfs.c

Timestamp:

2013-09-13T00:36:30Z (11 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

67fbd5e

Parents:

7f84430 (diff), 11d41be5 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

mainline changes

File:

• uspace/lib/c/generic/vfs/vfs.c (modified) (2 diffs)

uspace/lib/c/generic/vfs/vfs.c

@@ -43 +43 @@
 #include <stdio.h>
 #include <sys/stat.h>
+#include <sys/statfs.h>
 #include <sys/types.h>
 #include <ipc/services.h>
@@ -892 +893 @@
 }
 
+int statfs(const char *path, struct statfs *statfs)
+{
+        sysarg_t rc;
+        sysarg_t rc_orig;
+        aid_t req;
+        size_t pa_size;
+        
+        char *pa = absolutize(path, &pa_size);
+        if (!pa)
+                return ENOMEM;
+        async_exch_t *exch = vfs_exchange_begin();
+        
+        req = async_send_0(exch, VFS_IN_STATFS, NULL);
+        rc = async_data_write_start(exch, pa, pa_size);
+        if (rc != EOK) {
+                vfs_exchange_end(exch);
+                free(pa);
+                async_wait_for(req, &rc_orig);
+                if (rc_orig == EOK)
+                        return (int) rc;
+                else
+                        return (int) rc_orig;
+        }
+        rc = async_data_read_start(exch, (void *) statfs, sizeof(struct statfs));
+        if (rc != EOK) {
+                vfs_exchange_end(exch);
+                free(pa);
+                async_wait_for(req, &rc_orig);
+                if (rc_orig == EOK)
+                        return (int) rc;
+                else
+                        return (int) rc_orig;
+        }
+        vfs_exchange_end(exch);
+        free(pa);
+        async_wait_for(req, &rc);
+        return rc;
+}
+
 /** @}
  */