Fix two typos in stdin.c.
[paraslash.git] / client.c
1 /*
2 * Copyright (C) 1997-2008 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file client.c the client program used to connect to para_server */
8
9 #include "para.h"
10 #include "list.h"
11 #include "sched.h"
12 #include "client.cmdline.h"
13 #include "string.h"
14 #include "stdin.h"
15 #include "stdout.h"
16 #include "client.h"
17 #include "error.h"
18
19 INIT_CLIENT_ERRLISTS;
20
21 static struct client_task *ct;
22 static struct stdin_task sit;
23 static struct stdout_task sot;
24
25 static void supervisor_pre_select(struct sched *s, struct task *t)
26 {
27 if (ct->task.error < 0) {
28 t->error = ct->task.error;
29 return;
30 }
31 if (ct->status == CL_SENDING) {
32 stdin_set_defaults(&sit);
33 sit.buf = para_malloc(sit.bufsize),
34 register_task(&sit.task);
35 ct->inbuf = sit.buf;
36 ct->in_loaded = &sit.loaded;
37 ct->in_error = &sit.task.error;
38 t->error = -1;
39 goto min_delay;
40 }
41 if (ct->status == CL_RECEIVING) {
42 stdout_set_defaults(&sot);
43 sot.buf = ct->buf;
44 sot.loaded = &ct->loaded;
45 sot.input_error = &ct->task.error;
46 register_task(&sot.task);
47 t->error = -1;
48 goto min_delay;
49 }
50 return;
51 min_delay:
52 s->timeout.tv_sec = 0;
53 s->timeout.tv_usec = 1;
54 }
55
56 static struct task svt = {
57 .pre_select = supervisor_pre_select
58 };
59
60 INIT_STDERR_LOGGING(ct->conf.loglevel_arg);
61
62
63 /**
64 * The client program to connect to para_server.
65 *
66 * \param argc Usual argument count.
67 * \param argv Usual argument vector.
68 *
69 * It registers two tasks: The client task that communicates with para_server
70 * and the standard out task that writes any output produced by the client task
71 * to standard out.
72 *
73 * \return EXIT_SUCCESS or EXIT_FAILURE
74 *
75 * \sa client_open(), stdout.c, stdout.h, para_client(1), para_server(1)
76 */
77 int main(int argc, char *argv[])
78 {
79
80 int ret;
81 struct sched s;
82
83 s.default_timeout.tv_sec = 1;
84 s.default_timeout.tv_usec = 0;
85 ret = client_open(argc, argv, &ct);
86 if (ret < 0) /* can not use PARA_LOG here */
87 exit(EXIT_FAILURE);
88 register_task(&svt);
89 ret = schedule(&s);
90 if (ret < 0)
91 PARA_ERROR_LOG("%s\n", para_strerror(-ret));
92 client_close(ct);
93 return ret >= 0? EXIT_SUCCESS: EXIT_FAILURE;
94 }