Export sched_shutdown().
[paraslash.git] / client.c
index 07da652..f47a0be 100644 (file)
--- a/client.c
+++ b/client.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1997-2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2008 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
 
 INIT_CLIENT_ERRLISTS;
 
-static struct private_client_data *pcd;
+static struct client_task *ct;
 static struct stdin_task sit;
 static struct stdout_task sot;
 
-
-INIT_STDERR_LOGGING(pcd->conf.loglevel_arg);
-
-static void client_event_handler(struct task *t)
+static void supervisor_pre_select(struct sched *s, struct task *t)
 {
-       struct private_client_data *p = t->private_data;
-
-       PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t->ret));
-       if (t->ret != -E_HANDSHAKE_COMPLETE) {
-               unregister_task(t);
-               p->error = t->ret;
+       if (ct->task.error < 0) {
+               t->error = ct->task.error;
                return;
        }
-       if (p->status == CL_SENDING) {
+       if (ct->status == CL_SENDING) {
                stdin_set_defaults(&sit);
                sit.buf = para_malloc(sit.bufsize),
                register_task(&sit.task);
-               p->inbuf = sit.buf;
-               p->in_loaded = &sit.loaded;
-               p->in_error = &sit.error;
-               return;
+               ct->inbuf = sit.buf;
+               ct->in_loaded = &sit.loaded;
+               ct->in_error = &sit.task.error;
+               t->error = -1;
+               goto min_delay;
        }
-       stdout_set_defaults(&sot);
-       sot.buf = p->buf;
-       sot.loaded = &p->loaded;
-       sot.input_error = &p->error;
-       register_task(&sot.task);
+       if (ct->status == CL_RECEIVING) {
+               stdout_set_defaults(&sot);
+               sot.buf = ct->buf;
+               sot.loaded = &ct->loaded;
+               sot.input_error = &ct->task.error;
+               register_task(&sot.task);
+               t->error = -1;
+               goto min_delay;
+       }
+       return;
+min_delay:
+       s->timeout.tv_sec = 0;
+       s->timeout.tv_usec = 1;
 }
 
+static struct task svt = {
+       .pre_select = supervisor_pre_select
+};
+
+INIT_STDERR_LOGGING(ct->conf.loglevel_arg);
+
+
 /**
- * the client program to connect to para_server
+ * The client program to connect to para_server.
  *
- * \param argc usual argument count
- * \param argv usual argument vector
+ * \param argc Usual argument count.
+ * \param argv Usual argument vector.
  *
  * It registers two tasks: The client task that communicates with para_server
  * and the standard out task that writes any output produced by the client task
@@ -73,13 +82,13 @@ int main(int argc, char *argv[])
 
        s.default_timeout.tv_sec = 1;
        s.default_timeout.tv_usec = 0;
-       ret = client_open(argc, argv, &pcd);
+       ret = client_open(argc, argv, &ct);
        if (ret < 0) /* can not use PARA_LOG here */
                exit(EXIT_FAILURE);
-       pcd->task.event_handler = client_event_handler;
+       register_task(&svt);
        ret = schedule(&s);
        if (ret < 0)
-               PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
-       client_close(pcd);
+               PARA_ERROR_LOG("%s\n", para_strerror(-ret));
+       client_close(ct);
        return ret >= 0? EXIT_SUCCESS: EXIT_FAILURE;
 }