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comparison src/os/unix/ngx_file.c @ 5:62b1a364857c

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nginx-0.0.1-2002-08-23-20:14:30 import
author Igor Sysoev <igor@sysoev.ru>
date Fri, 23 Aug 2002 16:14:30 +0000
parents
children 669801705ab1
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4:c5f071d376e5 5:62b1a364857c
1
2
3 ssize_t ngx_read_file(ngx_file_t file, char *buf, size_t size)
4 {
5 read();
6 }
7
8 #if 0
9
10 ssize_t ngx_read_file(ngx_file_t *file, char *buf, size_t size, off_t offset)
11 {
12 if (!file->read->ready) {
13
14 ngx_memzero(&file->iocb, sizeof(iocb));
15 file->iocb.aio_fildes = file->fd;
16 file->iocb.aio_buf = buf;
17 file->iocb.aio_nbytes = size;
18 file->iocb.aio_offset = offset;
19 #if (USE_AIO_KQUEUE)
20 file->iocb.aio_sigevent.sigev_notify = SIGEV_KEVENT;
21 file->iocb.aio_sigevent.sigev_notify_kqueue = tid->kq;
22 file->iocb.aio_sigevent.sigev_value = (union sigval) file;
23 #endif
24 #if (USE_AIO_SIGNAL)
25 file->iocb.aio_sigevent.sigev_notify = SIGEV_SIGNAL;
26 file->iocb.aio_sigevent.sigev_signo = NGX_SIGAIO;
27 #ifndef __FreeBSD__
28 file->iocb.aio_sigevent.sigev_value.sival_ptr = file;
29 #endif
30 #endif
31
32 if (aio_read(&file->iocb) == -1) {
33 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno,
34 "aio_read() failed");
35 return NGX_ERROR;
36
37 n = aio_error(&file->iocb);
38 if (n == EINPROGRESS)
39 return NGX_AGAIN;
40
41 if (n == -1) {
42 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno,
43 "aio_read() failed");
44 return NGX_ERROR;
45 }
46 }
47
48 ngx_assert(file->iocb.aio_buf == buf), return NGX_ERROR,
49 "ngx_aio_read_file: another buffer is passed");
50
51 n = aio_return(&file->iocb);
52 if (n == -1) {
53 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno,
54 "aio_read() failed");
55 return NGX_ERROR;
56 }
57
58 return n;
59 }
60
61 #endif