Changeset 0b18364 in mainline for uspace/lib/c

Timestamp:

2013-07-24T20:43:38Z (12 years ago)

Author:

Ji?? Z?rev?cky <zarevucky.jiri@…>

Branches:

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

Children:

9a8c188

Parents:

cb65bbe

Message:

Implement client side of walk and open.

Location:

uspace/lib/c

Files:

• generic/vfs/vfs.c (modified) (1 diff)
• include/ipc/vfs.h (modified) (1 diff)
• include/vfs/vfs.h (modified) (1 diff)

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

@@ -90 +90 @@
 {
         async_exchange_end(exch);
+}
+
+int _vfs_walk(int parent, const char *path, int flags)
+{
+        async_exch_t *exch = vfs_exchange_begin();
+        
+        // TODO: assume this is done at a higher level.
+        char *precanon = str_dup(path);
+        size_t canon_size;
+        char *canon = canonify(precanon, &canon_size);
+        
+        ipc_call_t answer;
+        aid_t req = async_send_2(exch, VFS_IN_WALK, parent, flags, &answer);
+        sysarg_t rc = async_data_write_start(exch, canon, canon_size);
+        
+        free(precanon);
+        vfs_exchange_end(exch);
+                
+        sysarg_t rc_orig;
+        async_wait_for(req, &rc_orig);
+
+        if (rc_orig != EOK) {
+                return (int) rc_orig;
+        }
+                
+        if (rc != EOK) {
+                return (int) rc;
+        }
+        
+        return (int) IPC_GET_ARG1(answer);
+}
+
+int _vfs_open(int fildes, int mode)
+{
+        async_exch_t *exch = vfs_exchange_begin();
+        sysarg_t rc = async_req_2_0(exch, VFS_IN_OPEN2, fildes, mode);
+        vfs_exchange_end(exch);
+        
+        return (int) rc;
 }
 

uspace/lib/c/include/ipc/vfs.h

@@ -181 +181 @@
         //WALK_PARTIAL = (1 << 0),
         
-        WALK_ALL_FLAGS = 0,
+        WALK_MAY_CREATE = (1 << 1),
+        WALK_MUST_CREATE = (1 << 2),
+        
+        WALK_REGULAR = (1 << 3),
+        WALK_DIRECTORY = (1 << 4),
+        
+        WALK_ALL_FLAGS = WALK_MAY_CREATE | WALK_MUST_CREATE | WALK_REGULAR | WALK_DIRECTORY,
 };
 

uspace/lib/c/include/vfs/vfs.h

@@ -62 +62 @@
 extern void vfs_exchange_end(async_exch_t *);
 
+extern int _vfs_walk(int parent, const char *path, int flags);
+extern int _vfs_open(int file, int mode);
+
 #endif