Added first draft of a KIRO Client class

Updated Makefile

1 files changed, 205 insertions, 0 deletions

diff --git a/kiro-client.c b/kiro-client.c
new file mode 100644
index 0000000..9fa15ac
--- /dev/null
+++ b/kiro-client.c
@@ -0,0 +1,205 @@
+/* Copyright (C) 2014 Timo Dritschler <timo.dritschler@kit.edu>
+   (Karlsruhe Institute of Technology)
+
+   This library is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Lesser General Public License as published by the
+   Free Software Foundation; either version 2.1 of the License, or (at your
+   option) any later version.
+
+   This library is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+   FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+   details.
+
+   You should have received a copy of the GNU Lesser General Public License along
+   with this library; if not, write to the Free Software Foundation, Inc., 51
+   Franklin St, Fifth Floor, Boston, MA 02110, USA
+*/
+
+/**
+ * SECTION: kiro-client
+ * @Short_description: KIRO RDMA Client / Consumer
+ * @Title: KiroClient
+ *
+ * KiroClient implements the client / active / consumer side of the the RDMA
+ * Communication Channel. It uses a KIRO-CLIENT to manage data read from the Server.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <rdma/rdma_verbs.h>
+#include <glib.h>
+#include "kiro-client.h"
+#include "kiro-rdma.h"
+
+
+/*
+ * Definition of 'private' structures and members and macro to access them
+ */
+
+#define KIRO_CLIENT_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), KIRO_TYPE_CLIENT, KiroClientPrivate))
+
+struct _KiroClientPrivate {
+
+    /* Properties */
+    // PLACEHOLDER //
+
+    /* 'Real' private structures */
+    /* (Not accessible by properties) */
+    struct rdma_event_channel   *ec;    // Main Event Channel
+    struct rdma_cm_id           *conn;  // Connection to the Server
+    
+
+};
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (KiroClient, kiro_client, G_TYPE_OBJECT);
+
+
+static void kiro_client_init (KiroClient *self)
+{
+    KiroClientPrivate *priv = KIRO_CLIENT_GET_PRIVATE(self);
+    memset(priv, 0, sizeof(&priv));
+}
+
+static void
+kiro_client_finalize (GObject *object)
+{
+    //PASS
+}
+
+static void
+kiro_client_class_init (KiroClientClass *klass)
+{
+    GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
+    gobject_class->finalize = kiro_client_finalize;
+}
+
+
+
+int kiro_client_connect (KiroClient *self, char *address, char* port, size_t timeout)
+{
+    KiroClientPrivate *priv = KIRO_CLIENT_GET_PRIVATE(self);
+
+    if(priv->conn)
+    {
+        printf("Already connected to server.\n");
+        return -1;
+    }
+    
+    struct rdma_addrinfo hints, *res_addrinfo;
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_port_space = RDMA_PS_IB;
+    if(rdma_getaddrinfo(address, port, &hints, &res_addrinfo))
+    {
+        printf("Failed to resolve Route to server %s:%s\n",address, port);
+        return -1;
+    }
+    
+    struct ibv_qp_init_attr qp_attr;
+    memset(&qp_attr, 0, sizeof(qp_attr));
+    qp_attr.cap.max_send_wr = 10;
+    qp_attr.cap.max_recv_wr = 10;
+    qp_attr.cap.max_send_sge = 1;
+    qp_attr.cap.max_recv_sge = 1;
+    qp_attr.qp_context = priv->conn;
+    qp_attr.sq_sig_all = 1;
+    
+    
+    if(rdma_create_ep(&(priv->conn), res_addrinfo, NULL, &qp_attr))
+    {
+        printf("Endpoint creation failed.\n");
+        return -1;
+    }
+    
+    struct kiro_connection_context *ctx = (struct kiro_connection_context *)calloc(1,sizeof(struct kiro_connection_context));
+    if(!ctx)
+    {
+        printf("Failed to create connection context.\n");
+        rdma_destroy_ep(priv->conn);
+        return -1;
+    }
+    
+    ctx->cf_mr_send = (struct kiro_rdma_mem *)calloc(1, sizeof(struct kiro_rdma_mem));
+    ctx->cf_mr_recv = (struct kiro_rdma_mem *)calloc(1, sizeof(struct kiro_rdma_mem));
+    if(!ctx->cf_mr_recv || !ctx->cf_mr_send)
+    {
+        printf("Failed to allocate Control Flow Memory Container.\n");
+        kiro_destroy_connection_context(ctx);
+        rdma_destroy_ep(priv->conn);
+        return -1;
+    }
+    
+    ctx->cf_mr_recv = kiro_create_rdma_memory(priv->conn->pd, sizeof(struct kiro_ctrl_msg), IBV_ACCESS_LOCAL_WRITE);
+    ctx->cf_mr_send = kiro_create_rdma_memory(priv->conn->pd, sizeof(struct kiro_ctrl_msg), IBV_ACCESS_LOCAL_WRITE);
+    if(!ctx->cf_mr_recv || !ctx->cf_mr_send)
+    {
+        printf("Failed to register control message memory.\n");
+        kiro_destroy_connection_context(ctx);
+        rdma_destroy_ep(priv->conn);
+        return -1;
+    }
+    ctx->cf_mr_recv->size = ctx->cf_mr_send->size = sizeof(struct kiro_ctrl_msg);
+    priv->conn->context = ctx;
+    
+    if(!rdma_post_recv(priv->conn, priv->conn, ctx->cf_mr_recv->mem, ctx->cf_mr_recv->size, ctx->cf_mr_recv->mr))
+    {
+        printf("Posting preemtive receive for connection failed.\n");
+        kiro_destroy_connection_context(ctx);
+        rdma_destroy_ep(priv->conn);
+        return -1;
+    }
+    
+    if(rdma_connect(priv->conn, NULL))
+    {
+        printf("Failed to establish connection to the server.\n");
+        kiro_destroy_connection_context(ctx);
+        rdma_destroy_ep(priv->conn);
+        return -1;
+    }
+    
+    priv->ec = rdma_create_event_channel();
+    int oldflags = fcntl (priv->ec->fd, F_GETFL, 0);
+    /* Only change the FD Mode if we were able to get its flags */
+    if (oldflags >= 0) {
+        oldflags |= O_NONBLOCK;
+        /* Store modified flag word in the descriptor. */
+        fcntl (priv->ec->fd, F_SETFL, oldflags);
+    }
+    if(rdma_migrate_id(priv->conn, priv->ec))
+    {
+        printf("Was unable to migrate connection to new Event Channel.\n");
+        rdma_disconnect(priv->conn);
+        kiro_destroy_connection_context(ctx);
+        rdma_destroy_ep(priv->conn);
+        return -1;
+    }
+    
+    //ToDo:
+    //Create TRB, request RDMA from Server, call kiro_client_sync, ???, Profit!
+    
+    
+    printf("Connect to server.\n");
+    return 0;
+    
+}
+
+
+
+int kiro_client_sync (KiroClient *self)
+{
+    //PASS
+    return 0;
+}
+
+
+
+
+
+
+
+
+
+