/*
- * Copyright (C) 2011-2012 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2011-2013 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
char empty_line[1000];
struct task task;
struct btr_node *stdout_btrn;
+ bool last_write_was_status;
bool line_handler_running;
bool input_eof;
bool caught_sigint;
rl_redisplay();
wipe_bottom_line(); /* wipe out the prompt */
rl_insert_text(text);
+ free(text);
rl_point = point;
}
static void i9e_line_handler(char *line)
{
int ret;
+ struct btr_node *dummy;
+ if (!line) {
+ i9ep->input_eof = true;
+ return;
+ }
+ if (!*line)
+ goto free_line;
+ rl_set_prompt("");
+ dummy = btr_new_node(&(struct btr_node_description)
+ EMBRACE(.name = "dummy line handler"));
+ i9e_attach_to_stdout(dummy);
ret = i9ep->ici->line_handler(line);
if (ret < 0)
PARA_WARNING_LOG("%s\n", para_strerror(-ret));
- rl_set_prompt("");
- if (line) {
- if (!*line)
- rl_set_prompt(i9ep->ici->prompt);
- else
- add_history(line);
- free(line);
- } else {
- rl_set_prompt("");
- i9ep->input_eof = true;
- }
+ add_history(line);
+ btr_remove_node(&dummy);
+free_line:
+ free(line);
}
-static void i9e_post_select(__a_unused struct sched *s, struct task *t)
+static int i9e_post_select(__a_unused struct sched *s, __a_unused struct task *t)
{
int ret;
struct i9e_client_info *ici = i9ep->ici;
char *buf;
- size_t sz;
+ size_t sz, consumed = 0;
ret = -E_I9E_EOF;
if (i9ep->input_eof)
}
if (ret == 0)
goto out;
+again:
sz = btr_next_buffer(i9ep->stdout_btrn, &buf);
if (sz == 0)
goto out;
+ if (i9ep->last_write_was_status)
+ fprintf(i9ep->stderr_stream, "\n");
+ i9ep->last_write_was_status = false;
ret = xwrite(ici->fds[1], buf, sz);
if (ret < 0)
goto rm_btrn;
btr_consume(i9ep->stdout_btrn, ret);
+ consumed += ret;
+ if (ret == sz && consumed < 10000)
+ goto again;
goto out;
rm_btrn:
if (i9ep->stdout_btrn) {
+ wipe_bottom_line();
btr_remove_node(&i9ep->stdout_btrn);
rl_set_keymap(i9ep->standard_km);
rl_set_prompt(i9ep->ici->prompt);
wipe_bottom_line();
out:
i9ep->caught_sigint = false;
- t->error = ret;
+ return ret;
}
static void i9e_pre_select(struct sched *s, __a_unused struct task *t)
vfprintf(i9ep->stderr_stream, fmt, argp);
va_end(argp);
reset_line_state();
+ i9ep->last_write_was_status = false;
+}
+
+/**
+ * Print the current status to stderr.
+ *
+ * \param buf The text to print.
+ * \param len The number of bytes in \a buf.
+ *
+ * This clears the bottom line, moves to the beginning of the line and prints
+ * the given text. If the length of this text exceeds the width of the
+ * terminal, the text is shortened by leaving out a part in the middle.
+ */
+void ie9_print_status_bar(char *buf, unsigned len)
+{
+ size_t x = i9ep->num_columns, y = (x - 4) / 2;
+
+ assert(x >= 6);
+ if (len > x) {
+ buf[y] = '\0';
+ fprintf(i9ep->stderr_stream, "\r%s", buf);
+ fprintf(i9ep->stderr_stream, " .. ");
+ fprintf(i9ep->stderr_stream, "%s", buf + len - y);
+ } else {
+ char scratch[1000];
+
+ y = x - len;
+ scratch[0] = '\r';
+ strcpy(scratch + 1, buf);
+ memset(scratch + 1 + len, ' ', y);
+ scratch[1 + len + y] = '\r';
+ scratch[2 + len + y] = '\0';
+ fprintf(i9ep->stderr_stream, "\r%s", scratch);
+ }
+ i9ep->last_write_was_status = true;
}
/**