X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=client.c;h=873edc163b3e5f5164307d647724cf6655ec0d5f;hp=c194e1929b9dfa2cb7704ca1f6b78dd704eb3815;hb=b3644a3f5de245609dc608a947ed71e2f75b2fd5;hpb=1745a87654ce08b57c46ce0870d8571eacbe27c9

diff --git a/client.c b/client.c
index c194e192..873edc16 100644
--- a/client.c
+++ b/client.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1997-2012 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2013 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -54,7 +54,7 @@ static void exec_pre_select(struct sched *s, struct task *t)
 		sched_min_delay(s);
 }
 
-static void exec_post_select(__a_unused struct sched *s, struct task *t)
+static int exec_post_select(__a_unused struct sched *s, struct task *t)
 {
 	struct exec_task *et = container_of(t, struct exec_task, task);
 	struct btr_node *btrn = et->btrn;
@@ -63,10 +63,8 @@ static void exec_post_select(__a_unused struct sched *s, struct task *t)
 	int ret;
 
 	ret = btr_node_status(btrn, 0, BTR_NT_LEAF);
-	if (ret <= 0) {
-		t->error = ret;
-		return;
-	}
+	if (ret <= 0)
+		return ret;
 	sz = btr_next_buffer(btrn, &buf);
 	if (sz <= 1)
 		goto out;
@@ -76,6 +74,7 @@ static void exec_post_select(__a_unused struct sched *s, struct task *t)
 	et->result_buf[et->result_size - 1] = '\0';
 out:
 	btr_consume(btrn, sz);
+	return 0;
 }
 
 static int make_client_argv(const char *line)
@@ -114,11 +113,11 @@ static int execute_client_command(const char *cmd, char **result)
 		goto out;
 	schedule(&command_sched);
 	*result = exec_task.result_buf;
-	btr_remove_node(exec_task.btrn);
+	btr_remove_node(&exec_task.btrn);
 	client_disconnect(ct);
 	ret = 1;
 out:
-	btr_free_node(exec_task.btrn);
+	btr_remove_node(&exec_task.btrn);
 	if (ret < 0)
 		free(exec_task.result_buf);
 	return ret;
@@ -307,7 +306,7 @@ static void setatt_completer(struct i9e_completion_info *ci,
 		free(orig);
 	}
 	sl[2 * num_atts] = NULL;
-	ret = i9e_extract_completions(ci->word, sl, &cr->matches);
+	i9e_extract_completions(ci->word, sl, &cr->matches);
 out:
 	free(buf);
 	free_argv(sl);
@@ -446,16 +445,14 @@ static int client_i9e_line_handler(char *line)
 	int ret;
 
 	client_disconnect(ct);
-	if (!line || !*line)
-		return 0;
-	PARA_DEBUG_LOG("line handler: %s\n", line);
+	PARA_DEBUG_LOG("line: %s\n", line);
 	ret = make_client_argv(line);
-	if (ret < 0)
+	if (ret <= 0)
 		return ret;
 	ret = client_connect(ct, &sched, NULL, NULL);
 	if (ret < 0)
 		return ret;
-	i9e_attach_to_stdout(ct->btrn);
+	i9e_attach_to_stdout(ct->btrn[0]);
 	return 1;
 }
 
@@ -478,7 +475,7 @@ __noreturn static void interactive_session(void)
 		.completers = completers,
 	};
 
-	PARA_NOTICE_LOG("\n%s\n", VERSION_TEXT("client"));
+	PARA_NOTICE_LOG("\n%s\n", version_text("client"));
 	if (ct->conf.history_file_given)
 		history_file = para_strdup(ct->conf.history_file_arg);
 	else {
@@ -531,28 +528,37 @@ __noreturn static void print_completions(void)
 
 #endif /* HAVE_READLINE */
 
-static void supervisor_post_select(struct sched *s, struct task *t)
+struct supervisor_task {
+	bool stdout_task_started;
+	struct task task;
+};
+
+static int supervisor_post_select(struct sched *s, struct task *t)
 {
-	if (ct->task.error < 0) {
-		t->error = ct->task.error;
-		return;
+	struct supervisor_task *svt = container_of(t, struct supervisor_task,
+		task);
+
+	if (ct->task.error < 0)
+		return ct->task.error;
+	if (!svt->stdout_task_started && ct->status == CL_EXECUTING) {
+		stdout_set_defaults(&sot);
+		register_task(s, &sot.task);
+		svt->stdout_task_started = true;
+		return 1;
 	}
 	if (ct->status == CL_SENDING) {
 		stdin_set_defaults(&sit);
 		register_task(s, &sit.task);
-		t->error = -E_TASK_STARTED;
-		return;
-	}
-	if (ct->status == CL_RECEIVING) {
-		stdout_set_defaults(&sot);
-		register_task(s, &sot.task);
-		t->error = -E_TASK_STARTED; return;
+		return -E_TASK_STARTED;
 	}
+	return 0;
 }
 
-static struct task svt = {
-	.post_select = supervisor_post_select,
-	.status = "supervisor task"
+static struct supervisor_task supervisor_task = {
+	.task = {
+		.post_select = supervisor_post_select,
+		.status = "supervisor task"
+	}
 };
 
 /**
@@ -600,8 +606,8 @@ int main(int argc, char *argv[])
 	if (ret < 0)
 		goto out;
 	sot.btrn = btr_new_node(&(struct btr_node_description)
-		EMBRACE(.name = "stdout", .parent = ct->btrn));
-	register_task(&sched, &svt);
+		EMBRACE(.name = "stdout", .parent = ct->btrn[0]));
+	register_task(&sched, &supervisor_task.task);
 	ret = schedule(&sched);
 	if (ret >= 0 && ct->task.error < 0) {
 		switch(ct->task.error) {
@@ -612,14 +618,14 @@ int main(int argc, char *argv[])
 		case -E_BTR_EOF:
 			ret = 0;
 			break;
-		default: ret = ct->task.error;
+		default: ret = -E_SERVER_CMD_FAILURE;
 		}
 	}
 out:
 	if (ret < 0)
 		PARA_ERROR_LOG("%s\n", para_strerror(-ret));
 	client_close(ct);
-	btr_free_node(sit.btrn);
-	btr_free_node(sot.btrn);
+	btr_remove_node(&sit.btrn);
+	btr_remove_node(&sot.btrn);
 	return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;
 }