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comparison src/os/unix/ngx_aio_read.c @ 166:389d7ee9fa60

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nginx-0.0.1-2003-10-30-11:51:06 import
author Igor Sysoev <igor@sysoev.ru>
date Thu, 30 Oct 2003 08:51:06 +0000
parents 84036764e215
children 1bf718ce0dde
comparison
equal deleted inserted replaced
165:894a01c6aea3 166:389d7ee9fa60
22 int n; 22 int n;
23 ngx_event_t *rev; 23 ngx_event_t *rev;
24 24
25 rev = c->read; 25 rev = c->read;
26 26
27 if (rev->active) { 27 if (!rev->ready) {
28 ngx_log_error(NGX_LOG_ALERT, rev->log, 0, "SECOND AIO POST"); 28 ngx_log_error(NGX_LOG_ALERT, rev->log, 0, "SECOND AIO POST");
29 return NGX_AGAIN; 29 return NGX_AGAIN;
30 } 30 }
31 31
32 if (!rev->aio_complete) { 32 ngx_log_debug(rev->log, "rev->complete: %d" _ rev->complete);
33 ngx_log_debug(rev->log, "aio size: %d" _ size);
34
35 if (!rev->complete) {
33 ngx_memzero(&rev->aiocb, sizeof(struct aiocb)); 36 ngx_memzero(&rev->aiocb, sizeof(struct aiocb));
34 37
35 rev->aiocb.aio_fildes = c->fd; 38 rev->aiocb.aio_fildes = c->fd;
36 rev->aiocb.aio_buf = buf; 39 rev->aiocb.aio_buf = buf;
37 rev->aiocb.aio_nbytes = size; 40 rev->aiocb.aio_nbytes = size;
47 "aio_read() failed"); 50 "aio_read() failed");
48 rev->error = 1; 51 rev->error = 1;
49 return NGX_ERROR; 52 return NGX_ERROR;
50 } 53 }
51 54
52 ngx_log_debug(rev->log, "aio_read: OK"); 55 ngx_log_debug(rev->log, "aio_read: #%d OK" _ c->fd);
53 56
54 rev->active = 1; 57 rev->active = 1;
58 rev->ready = 0;
55 } 59 }
56 60
57 rev->aio_complete = 0; 61 rev->complete = 0;
58 62
59 n = aio_error(&rev->aiocb); 63 n = aio_error(&rev->aiocb);
60 if (n == -1) { 64 if (n == -1) {
61 ngx_log_error(NGX_LOG_ALERT, rev->log, ngx_errno, "aio_error() failed"); 65 ngx_log_error(NGX_LOG_ALERT, rev->log, ngx_errno, "aio_error() failed");
62 rev->error = 1; 66 rev->error = 1;
63 return NGX_ERROR; 67 return NGX_ERROR;
64 } 68 }
65 69
66 if (n != 0) { 70 if (n != 0) {
67 if (n == NGX_EINPROGRESS) { 71 if (n == NGX_EINPROGRESS) {
68 if (!rev->active) { 72 if (rev->ready) {
69 ngx_log_error(NGX_LOG_ALERT, rev->log, n, 73 ngx_log_error(NGX_LOG_ALERT, rev->log, n,
70 "aio_read() still in progress"); 74 "aio_read() still in progress");
75 rev->ready = 0;
71 } 76 }
72 return NGX_AGAIN; 77 return NGX_AGAIN;
73 } 78 }
74 79
75 ngx_log_error(NGX_LOG_CRIT, rev->log, n, "aio_read() failed"); 80 ngx_log_error(NGX_LOG_CRIT, rev->log, n, "aio_read() failed");
76 rev->error = 1; 81 rev->error = 1;
82 rev->ready = 0;
77 return NGX_ERROR; 83 return NGX_ERROR;
78 } 84 }
79 85
80 n = aio_return(&rev->aiocb); 86 n = aio_return(&rev->aiocb);
81 if (n == -1) { 87 if (n == -1) {
82 ngx_log_error(NGX_LOG_ALERT, rev->log, ngx_errno, 88 ngx_log_error(NGX_LOG_ALERT, rev->log, ngx_errno,
83 "aio_return() failed"); 89 "aio_return() failed");
84 90
85 rev->error = 1; 91 rev->error = 1;
92 rev->ready = 0;
86 return NGX_ERROR; 93 return NGX_ERROR;
94 }
95
96 ngx_log_debug(rev->log, "aio_read: #%d %d" _ c->fd _ n);
97
98 if (n == 0) {
99 rev->eof = 1;
100 rev->ready = 0;
101 } else {
102 rev->ready = 1;
87 } 103 }
88 104
89 rev->active = 0; 105 rev->active = 0;
90 106
91 ngx_log_debug(rev->log, "aio_read: %d" _ n);
92
93 if (n == 0) {
94 rev->eof = 1;
95 }
96
97 return n; 107 return n;
98 } 108 }