Mercurial > hg > nginx
annotate src/os/unix/ngx_files.c @ 74:17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 11 Apr 2003 16:01:14 +0000 |
parents | 4534060fde92 |
children | 869b10be682f |
rev | line source |
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5
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nginx-0.0.1-2002-08-23-20:14:30 import
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33
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nginx-0.0.1-2002-12-19-20:49:51 import
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2 #include <ngx_config.h> |
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3 #include <ngx_core.h> |
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4 #include <ngx_hunk.h> |
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5 #include <ngx_array.h> |
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6 #include <ngx_file.h> |
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7 #include <ngx_files.h> |
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nginx-0.0.1-2002-09-02-18:48:24 import
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10 ssize_t ngx_read_file(ngx_file_t *file, char *buf, size_t size, off_t offset) |
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11 { |
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12 ssize_t n; |
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14 ngx_log_debug(file->log, "read: %x, %d, %qd" _ buf _ size _ offset); |
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15 |
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nginx-0.0.1-2002-09-02-18:48:24 import
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16 n = pread(file->fd, buf, size, offset); |
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nginx-0.0.1-2002-09-07-14:14:25 import
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18 if (n == -1) { |
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19 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "pread() failed"); |
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20 return NGX_ERROR; |
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21 } |
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nginx-0.0.1-2002-12-21-20:14:50 import
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23 file->offset += n; |
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24 |
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25 return n; |
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26 } |
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29 ssize_t ngx_write_file(ngx_file_t *file, char *buf, size_t size, off_t offset) |
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30 { |
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31 ssize_t n; |
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32 |
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33 n = pwrite(file->fd, buf, size, offset); |
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34 |
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35 if (n == -1) { |
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36 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "pwrite() failed"); |
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37 return NGX_ERROR; |
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38 } |
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39 |
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40 if ((size_t) n != size) { |
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41 ngx_log_error(NGX_LOG_CRIT, file->log, 0, |
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42 "pwrite() has written only %d of %d", n, size); |
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43 return NGX_ERROR; |
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44 } |
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45 |
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46 file->offset += n; |
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47 |
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48 return n; |
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49 } |
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50 |
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51 |
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52 ssize_t ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *ce, |
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53 off_t offset, ngx_pool_t *pool) |
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54 { |
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55 size_t size; |
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56 ssize_t n; |
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57 struct iovec *iov; |
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58 ngx_err_t err; |
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59 ngx_array_t io; |
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60 |
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61 /* use pwrite() if there's the only hunk in a chain */ |
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62 |
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63 if (ce->next == NULL) { |
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64 return ngx_write_file(file, ce->hunk->pos, |
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65 ce->hunk->last - ce->hunk->pos, offset); |
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66 } |
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67 |
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68 ngx_init_array(io, pool, 10, sizeof(struct iovec), NGX_ERROR); |
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69 size = 0; |
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70 |
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71 while (ce) { |
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72 ngx_test_null(iov, ngx_push_array(&io), NGX_ERROR); |
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73 iov->iov_base = ce->hunk->pos; |
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74 iov->iov_len = ce->hunk->last - ce->hunk->pos; |
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75 size += ce->hunk->last - ce->hunk->pos; |
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76 ce = ce->next; |
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77 } |
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78 |
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79 if (lseek(file->fd, offset, SEEK_SET) == -1) { |
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80 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "lseek() failed"); |
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81 return NGX_ERROR; |
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82 } |
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83 |
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84 n = writev(file->fd, (struct iovec *) io.elts, io.nelts); |
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85 |
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86 ngx_destroy_array(&io); |
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87 |
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88 if (n == -1) { |
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89 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "writev() failed"); |
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90 return NGX_ERROR; |
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91 } |
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92 |
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93 if ((size_t) n != size) { |
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94 ngx_log_error(NGX_LOG_CRIT, file->log, 0, |
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95 "writev() has written only %d of %d", n, size); |
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96 return NGX_ERROR; |
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97 } |
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98 |
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99 file->offset += n; |
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100 |
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101 return n; |
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102 } |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
35
diff
changeset
|
103 |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
35
diff
changeset
|
104 |
5
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
105 #if 0 |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
106 |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
107 ssize_t ngx_read_file(ngx_file_t *file, char *buf, size_t size, off_t offset) |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
108 { |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
109 if (!file->read->ready) { |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
110 |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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111 ngx_memzero(&file->iocb, sizeof(iocb)); |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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112 file->iocb.aio_fildes = file->fd; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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113 file->iocb.aio_buf = buf; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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114 file->iocb.aio_nbytes = size; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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115 file->iocb.aio_offset = offset; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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116 #if (USE_AIO_KQUEUE) |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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117 file->iocb.aio_sigevent.sigev_notify = SIGEV_KEVENT; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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118 file->iocb.aio_sigevent.sigev_notify_kqueue = tid->kq; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
119 file->iocb.aio_sigevent.sigev_value = (union sigval) file; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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120 #endif |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
121 #if (USE_AIO_SIGNAL) |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
122 file->iocb.aio_sigevent.sigev_notify = SIGEV_SIGNAL; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
123 file->iocb.aio_sigevent.sigev_signo = NGX_SIGAIO; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
124 #ifndef __FreeBSD__ |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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125 file->iocb.aio_sigevent.sigev_value.sival_ptr = file; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
126 #endif |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
127 #endif |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
128 |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
129 if (aio_read(&file->iocb) == -1) { |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
130 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
131 "aio_read() failed"); |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
132 return NGX_ERROR; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
133 |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
134 n = aio_error(&file->iocb); |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
135 if (n == EINPROGRESS) |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
136 return NGX_AGAIN; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
137 |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
138 if (n == -1) { |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
139 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
140 "aio_read() failed"); |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
141 return NGX_ERROR; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
142 } |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
143 } |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
144 |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
145 ngx_assert(file->iocb.aio_buf == buf), return NGX_ERROR, |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
146 "ngx_aio_read_file: another buffer is passed"); |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
147 |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
148 n = aio_return(&file->iocb); |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
149 if (n == -1) { |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
150 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
151 "aio_read() failed"); |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
152 return NGX_ERROR; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
153 } |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
154 |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
155 return n; |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
156 } |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
157 |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
158 #endif |