libeio/demo.c

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <poll.h>
#include <string.h>
#include <assert.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>

#include "eio.h"

int respipe [2];

void
want_poll (void)
{
  char dummy;
  printf ("want_poll ()\n");
  write (respipe [1], &dummy, 1);
}

void
done_poll (void)
{
  char dummy;
  printf ("done_poll ()\n");
  read (respipe [0], &dummy, 1);
}

void
event_loop (void)
{
  // an event loop. yeah.
  struct pollfd pfd;
  pfd.fd     = respipe [0];
  pfd.events = POLLIN;

  printf ("\nentering event loop\n");
  while (eio_nreqs ())
    {
      poll (&pfd, 1, -1);
      printf ("eio_poll () = %d\n", eio_poll ());
    }
  printf ("leaving event loop\n");
}

int
res_cb (eio_req *req)
{
  printf ("res_cb(%d|%s) = %d\n", req->type, req->data ? req->data : "?", EIO_RESULT (req));

  if (req->result < 0)
    abort ();

  return 0;
}

int
readdir_cb (eio_req *req)
{
  char *buf = (char *)EIO_BUF (req);

  printf ("readdir_cb = %d\n", EIO_RESULT (req));

  if (EIO_RESULT (req) < 0)
    return 0;

  while (EIO_RESULT (req)--)
    {
      printf ("readdir = <%s>\n", buf);
      buf += strlen (buf) + 1;
    }

  return 0;
}

int
stat_cb (eio_req *req)
{
  struct stat *buf = EIO_STAT_BUF (req);

  if (req->type == EIO_FSTAT)
    printf ("fstat_cb = %d\n", EIO_RESULT (req));
  else
    printf ("stat_cb(%s) = %d\n", EIO_PATH (req), EIO_RESULT (req));

  if (!EIO_RESULT (req))
    printf ("stat size %d perm 0%o\n", buf->st_size, buf->st_mode & 0777);

  return 0;
}

int
read_cb (eio_req *req)
{
  unsigned char *buf = (unsigned char *)EIO_BUF (req);

  printf ("read_cb = %d (%02x%02x%02x%02x %02x%02x%02x%02x)\n",
          EIO_RESULT (req),
          buf [0], buf [1], buf [2], buf [3],
          buf [4], buf [5], buf [6], buf [7]);

  return 0;
}

int last_fd;

int
open_cb (eio_req *req)
{
  printf ("open_cb = %d\n", EIO_RESULT (req));

  last_fd = EIO_RESULT (req);

  return 0;
}

int
main (void)
{
  printf ("pipe ()\n");
  if (pipe (respipe)) abort ();

  printf ("eio_init ()\n");
  if (eio_init (want_poll, done_poll)) abort ();

  do
    {
      /* avoid relative paths yourself(!) */
      eio_mkdir ("eio-test-dir", 0777, 0, res_cb, "mkdir");
      eio_nop (0, res_cb, "nop");
      event_loop ();

      eio_stat ("eio-test-dir", 0, stat_cb, "stat");
      eio_lstat ("eio-test-dir", 0, stat_cb, "stat");
      eio_open ("eio-test-dir/eio-test-file", O_RDWR | O_CREAT, 0777, 0, open_cb, "open");
      eio_symlink ("test", "eio-test-dir/eio-symlink", 0, res_cb, "symlink");
      eio_mknod ("eio-test-dir/eio-fifo", S_IFIFO, 0, 0, res_cb, "mknod");
      event_loop ();

      eio_utime ("eio-test-dir", 12345.678, 23456.789, 0, res_cb, "utime");
      eio_futime (last_fd, 92345.678, 93456.789, 0, res_cb, "futime");
      eio_chown ("eio-test-dir", getuid (), getgid (), 0, res_cb, "chown");
      eio_fchown (last_fd, getuid (), getgid (), 0, res_cb, "fchown");
      eio_fchmod (last_fd, 0723, 0, res_cb, "fchmod");
      eio_readdir ("eio-test-dir", 0, 0, readdir_cb, "readdir");
      eio_readdir ("/nonexistant", 0, 0, readdir_cb, "readdir");
      eio_fstat (last_fd, 0, stat_cb, "stat");
      eio_write (last_fd, "test\nfail\n", 10, 4, 0, res_cb, "write");
      event_loop ();

      eio_read (last_fd, 0, 8, 0, EIO_PRI_DEFAULT, read_cb, "read");
      eio_readlink ("eio-test-dir/eio-symlink", 0, res_cb, "readlink");
      event_loop ();

      eio_dup2 (1, 2, EIO_PRI_DEFAULT, res_cb, "dup"); // dup stdout to stderr
      eio_chmod ("eio-test-dir", 0765, 0, res_cb, "chmod");
      eio_ftruncate (last_fd, 9, 0, res_cb, "ftruncate");
      eio_fdatasync (last_fd, 0, res_cb, "fdatasync");
      eio_fsync (last_fd, 0, res_cb, "fsync");
      eio_sync (0, res_cb, "sync");
      eio_busy (0.5, 0, res_cb, "busy");
      event_loop ();

      eio_sendfile (1, last_fd, 4, 5, 0, res_cb, "sendfile"); // write "test\n" to stdout
      eio_fstat (last_fd, 0, stat_cb, "stat");
      event_loop ();

      eio_truncate ("eio-test-dir/eio-test-file", 6, 0, res_cb, "truncate");
      eio_readahead (last_fd, 0, 64, 0, res_cb, "readahead");
      event_loop ();

      eio_close (last_fd, 0, res_cb, "close");
      eio_link ("eio-test-dir/eio-test-file", "eio-test-dir/eio-test-file-2", 0, res_cb, "link");
      event_loop ();

      eio_rename ("eio-test-dir/eio-test-file", "eio-test-dir/eio-test-file-renamed", 0, res_cb, "rename");
      event_loop ();

      eio_unlink ("eio-test-dir/eio-fifo", 0, res_cb, "unlink");
      eio_unlink ("eio-test-dir/eio-symlink", 0, res_cb, "unlink");
      eio_unlink ("eio-test-dir/eio-test-file-2", 0, res_cb, "unlink");
      eio_unlink ("eio-test-dir/eio-test-file-renamed", 0, res_cb, "unlink");
      event_loop ();

      eio_rmdir ("eio-test-dir", 0, res_cb, "rmdir");
      event_loop ();
    }
  while (0);

  return 0;
}

Revision:	1.4
Committed:	Mon Nov 29 12:38:32 2010 UTC (15 years, 2 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-3_93, rel-3_92, rel-3_91, rel-3_71, rel-4_4, rel-4_5, rel-4_6, rel-4_7, rel-4_0, rel-4_1, rel-4_2, rel-4_3, rel-4_17, rel-4_14, rel-3_9, rel-3_8, rel-4_15, rel-4_12, rel-4_81, rel-4_80, rel-4_52, rel-4_53, rel-4_51, rel-4_78, rel-4_79, rel-4_54, rel-4_74, rel-4_75, rel-4_76, rel-4_77, rel-4_71, rel-4_72, rel-4_73, rel-4_31, rel-4_32, rel-4_33, rel-4_34, rel-4_11, rel-4_18, rel-4_19, HEAD
Changes since 1.3:	+1 -1 lines
Log Message:	* empty log message *
#	Content
1	#include <stdio.h>
2	#include <stdlib.h>
3	#include <unistd.h>
4	#include <poll.h>
5	#include <string.h>
6	#include <assert.h>
7	#include <fcntl.h>
8	#include <sys/types.h>
9	#include <sys/stat.h>
10
11	#include "eio.h"
12
13	int respipe [2];
14
15	void
16	want_poll (void)
17	{
18	char dummy;
19	printf ("want_poll ()\n");
20	write (respipe [1], &dummy, 1);
21	}
22
23	void
24	done_poll (void)
25	{
26	char dummy;
27	printf ("done_poll ()\n");
28	read (respipe [0], &dummy, 1);
29	}
30
31	void
32	event_loop (void)
33	{
34	// an event loop. yeah.
35	struct pollfd pfd;
36	pfd.fd = respipe [0];
37	pfd.events = POLLIN;
38
39	printf ("\nentering event loop\n");
40	while (eio_nreqs ())
41	{
42	poll (&pfd, 1, -1);
43	printf ("eio_poll () = %d\n", eio_poll ());
44	}
45	printf ("leaving event loop\n");
46	}
47
48	int
49	res_cb (eio_req *req)
50	{
51	printf ("res_cb(%d\|%s) = %d\n", req->type, req->data ? req->data : "?", EIO_RESULT (req));
52
53	if (req->result < 0)
54	abort ();
55
56	return 0;
57	}
58
59	int
60	readdir_cb (eio_req *req)
61	{
62	char buf = (char )EIO_BUF (req);
63
64	printf ("readdir_cb = %d\n", EIO_RESULT (req));
65
66	if (EIO_RESULT (req) < 0)
67	return 0;
68
69	while (EIO_RESULT (req)--)
70	{
71	printf ("readdir = <%s>\n", buf);
72	buf += strlen (buf) + 1;
73	}
74
75	return 0;
76	}
77
78	int
79	stat_cb (eio_req *req)
80	{
81	struct stat *buf = EIO_STAT_BUF (req);
82
83	if (req->type == EIO_FSTAT)
84	printf ("fstat_cb = %d\n", EIO_RESULT (req));
85	else
86	printf ("stat_cb(%s) = %d\n", EIO_PATH (req), EIO_RESULT (req));
87
88	if (!EIO_RESULT (req))
89	printf ("stat size %d perm 0%o\n", buf->st_size, buf->st_mode & 0777);
90
91	return 0;
92	}
93
94	int
95	read_cb (eio_req *req)
96	{
97	unsigned char buf = (unsigned char )EIO_BUF (req);
98
99	printf ("read_cb = %d (%02x%02x%02x%02x %02x%02x%02x%02x)\n",
100	EIO_RESULT (req),
101	buf [0], buf [1], buf [2], buf [3],
102	buf [4], buf [5], buf [6], buf [7]);
103
104	return 0;
105	}
106
107	int last_fd;
108
109	int
110	open_cb (eio_req *req)
111	{
112	printf ("open_cb = %d\n", EIO_RESULT (req));
113
114	last_fd = EIO_RESULT (req);
115
116	return 0;
117	}
118
119	int
120	main (void)
121	{
122	printf ("pipe ()\n");
123	if (pipe (respipe)) abort ();
124
125	printf ("eio_init ()\n");
126	if (eio_init (want_poll, done_poll)) abort ();
127
128	do
129	{
130	/* avoid relative paths yourself(!) */
131	eio_mkdir ("eio-test-dir", 0777, 0, res_cb, "mkdir");
132	eio_nop (0, res_cb, "nop");
133	event_loop ();
134
135	eio_stat ("eio-test-dir", 0, stat_cb, "stat");
136	eio_lstat ("eio-test-dir", 0, stat_cb, "stat");
137	eio_open ("eio-test-dir/eio-test-file", O_RDWR \| O_CREAT, 0777, 0, open_cb, "open");
138	eio_symlink ("test", "eio-test-dir/eio-symlink", 0, res_cb, "symlink");
139	eio_mknod ("eio-test-dir/eio-fifo", S_IFIFO, 0, 0, res_cb, "mknod");
140	event_loop ();
141
142	eio_utime ("eio-test-dir", 12345.678, 23456.789, 0, res_cb, "utime");
143	eio_futime (last_fd, 92345.678, 93456.789, 0, res_cb, "futime");
144	eio_chown ("eio-test-dir", getuid (), getgid (), 0, res_cb, "chown");
145	eio_fchown (last_fd, getuid (), getgid (), 0, res_cb, "fchown");
146	eio_fchmod (last_fd, 0723, 0, res_cb, "fchmod");
147	eio_readdir ("eio-test-dir", 0, 0, readdir_cb, "readdir");
148	eio_readdir ("/nonexistant", 0, 0, readdir_cb, "readdir");
149	eio_fstat (last_fd, 0, stat_cb, "stat");
150	eio_write (last_fd, "test\nfail\n", 10, 4, 0, res_cb, "write");
151	event_loop ();
152
153	eio_read (last_fd, 0, 8, 0, EIO_PRI_DEFAULT, read_cb, "read");
154	eio_readlink ("eio-test-dir/eio-symlink", 0, res_cb, "readlink");
155	event_loop ();
156
157	eio_dup2 (1, 2, EIO_PRI_DEFAULT, res_cb, "dup"); // dup stdout to stderr
158	eio_chmod ("eio-test-dir", 0765, 0, res_cb, "chmod");
159	eio_ftruncate (last_fd, 9, 0, res_cb, "ftruncate");
160	eio_fdatasync (last_fd, 0, res_cb, "fdatasync");
161	eio_fsync (last_fd, 0, res_cb, "fsync");
162	eio_sync (0, res_cb, "sync");
163	eio_busy (0.5, 0, res_cb, "busy");
164	event_loop ();
165
166	eio_sendfile (1, last_fd, 4, 5, 0, res_cb, "sendfile"); // write "test\n" to stdout
167	eio_fstat (last_fd, 0, stat_cb, "stat");
168	event_loop ();
169
170	eio_truncate ("eio-test-dir/eio-test-file", 6, 0, res_cb, "truncate");
171	eio_readahead (last_fd, 0, 64, 0, res_cb, "readahead");
172	event_loop ();
173
174	eio_close (last_fd, 0, res_cb, "close");
175	eio_link ("eio-test-dir/eio-test-file", "eio-test-dir/eio-test-file-2", 0, res_cb, "link");
176	event_loop ();
177
178	eio_rename ("eio-test-dir/eio-test-file", "eio-test-dir/eio-test-file-renamed", 0, res_cb, "rename");
179	event_loop ();
180
181	eio_unlink ("eio-test-dir/eio-fifo", 0, res_cb, "unlink");
182	eio_unlink ("eio-test-dir/eio-symlink", 0, res_cb, "unlink");
183	eio_unlink ("eio-test-dir/eio-test-file-2", 0, res_cb, "unlink");
184	eio_unlink ("eio-test-dir/eio-test-file-renamed", 0, res_cb, "unlink");
185	event_loop ();
186
187	eio_rmdir ("eio-test-dir", 0, res_cb, "rmdir");
188	event_loop ();
189	}
190	while (0);
191
192	return 0;
193	}
194