Split into several files to explain how it can be done

[simgrid.git] / examples / gras / mmrpc / mmrpc_client.c

diff --git a/examples/gras/mmrpc/mmrpc_client.c b/examples/gras/mmrpc/mmrpc_client.c
new file mode 100644 (file)
index 0000000..edab230
--- /dev/null
+++ b/examples/gras/mmrpc/mmrpc_client.c
@@ -0,0 +1,97 @@
+/* $Id$ */
+
+/* GridRPC - Fake Grid RPC thingy doing matrix multiplications (as expected)*/
+
+/* Copyright (c) 2005 Martin Quinson. All rights reserved.                  */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#define GRAS_DEFINE_TYPE_EXTERN
+#include "mmrpc.h"
+
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(MatMult);
+
+int client(int argc,char *argv[]) {
+  xbt_ex_t e; 
+  gras_socket_t toserver=NULL; /* peer */
+
+  gras_socket_t from;
+  matrix_t request[2], answer;
+
+  int i,j;
+
+  const char *host = "127.0.0.1";
+        int   port = 4000;
+
+  /* 1. Init the GRAS's infrastructure */
+  gras_init(&argc, argv);
+   
+  /* 2. Get the server's address. The command line override defaults when specified */
+  if (argc == 3) {
+    host=argv[1];
+    port=atoi(argv[2]);
+  } 
+
+  INFO2("Launch client (server on %s:%d)",host,port);
+   
+  /* 3. Wait for the server startup */
+  gras_os_sleep(1);
+   
+  /* 4. Create a socket to speak to the server */
+  TRY {
+    toserver=gras_socket_client(host,port);
+  } CATCH(e) {
+    RETHROW0("Unable to connect to the server: %s");
+  }
+  INFO2("Connected to %s:%d.",host,port);    
+
+
+  /* 5. Register the messages (before use) */
+  mmrpc_register_messages();
+
+  /* 6. Keep the user informed of what's going on */
+  INFO2(">>>>>>>> Connected to server which is on %s:%d <<<<<<<<", 
+       gras_socket_peer_name(toserver),gras_socket_peer_port(toserver));
+
+  /* 7. Prepare and send the request to the server */
+
+  request[0].rows=request[0].cols=request[1].rows=request[1].cols=MATSIZE;
+
+  request[0].ctn=xbt_malloc0(sizeof(double)*MATSIZE*MATSIZE);
+  request[1].ctn=xbt_malloc0(sizeof(double)*MATSIZE*MATSIZE);
+
+  for (i=0; i<MATSIZE; i++) {
+    request[0].ctn[i*MATSIZE+i] = 1;
+    for (j=0; j<MATSIZE; j++)
+      request[1].ctn[i*MATSIZE+j] = i*MATSIZE+j;
+  }
+  /*  mat_dump(&request[0],"C:sent0");*/
+  /*  mat_dump(&request[1],"C:sent1");*/
+
+  gras_msg_send(toserver, gras_msgtype_by_name("request"), &request);
+
+  free(request[0].ctn);
+  free(request[1].ctn);
+
+  INFO2(">>>>>>>> Request sent to %s:%d <<<<<<<<",
+       gras_socket_peer_name(toserver),gras_socket_peer_port(toserver));
+
+  /* 8. Wait for the answer from the server, and deal with issues */
+  gras_msg_wait(6000,gras_msgtype_by_name("answer"),&from,&answer);
+
+  /*  mat_dump(&answer,"C:answer");*/
+  for (i=0; i<MATSIZE*MATSIZE; i++) 
+    xbt_assert(answer.ctn[i]==i);
+
+  /* 9. Keep the user informed of what's going on, again */
+  INFO2(">>>>>>>> Got answer from %s:%d <<<<<<<<", 
+       gras_socket_peer_name(from),gras_socket_peer_port(from));
+
+  /* 10. Free the allocated resources, and shut GRAS down */
+  free(answer.ctn);
+  gras_socket_close(toserver);
+  gras_exit();
+  INFO0("Done.");
+  return 0;
+} /* end_of_client */