Changeset 26f2af0 in mainline for uspace/srv/fs/fat/fat.c

Timestamp:

2007-09-18T19:58:19Z (17 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

47a776f9

Parents:

c3b25510

Message:

VFS work.
Implement VFS_REGISTER part of the protocol in the FAT file system.

IPC work.
Rename ipc_data_send_accept() to ipc_data_receive() and ipc_data_send_answer()
to ipc_data_deliver(). Introduce ipc_data_send().

File:

• uspace/srv/fs/fat/fat.c (modified) (3 diffs)

uspace/srv/fs/fat/fat.c

@@ -39 +39 @@
 #include <ipc/ipc.h>
 #include <ipc/services.h>
+#include <async.h>
 #include <errno.h>
 #include <unistd.h>
@@ -59 +60 @@
 };
 
+/*
+ * This fibril processes request from the VFS server.
+ */
+void fat_connection(ipc_callid_t iid, ipc_call_t *icall)
+{
+        while (1) {
+                ipc_callid_t callid;
+                ipc_call_t call;
+        
+                callid = async_get_call(&call);
+                ipc_answer_fast(callid, ENOTSUP, 0, 0);
+        }
+}
+
 int main(int argc, char **argv)
 {
@@ -69 +84 @@
         }
         
-        /* TODO: start making calls according to the VFS protocol */
+        /*
+         * Tell VFS that we are here and want to get registered.
+         * We use the async framework because VFS will answer the request
+         * out-of-order, when it knows that the operation succeeded or failed.
+         */
+        ipc_call_t answer;
+        aid_t req = async_send_2(vfs_phone, VFS_REGISTER, 0, 0, &answer);
 
+        /*
+         * Send our VFS info structure to VFS.
+         */
+        int rc = ipc_data_send(vfs_phone, &fat_vfs_info, sizeof(fat_vfs_info)); 
+        if (rc != EOK) {
+                async_wait_for(req, NULL);
+                return rc;
+        }
+
+        /*
+         * Ask VFS for callback connection.
+         */
+        ipcarg_t phonehash;
+        ipc_connect_to_me(vfs_phone, 0, 0, &phonehash);
+
+        async_new_connection(phonehash, 0, NULL, fat_connection);
         return 0;
 }