Mercurial > hg > nginx
comparison src/os/unix/ngx_linux_aio_read.c @ 3294:04cfc09b8b8d
export aio presence knowledge to prevent using "aio sendfile",
if aio does not present
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 05 Nov 2009 13:12:30 +0000 |
parents | 6060225e9261 |
children | cd04f652478c |
comparison
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3293:8abb88374c6c | 3294:04cfc09b8b8d |
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25 | 25 |
26 ssize_t | 26 ssize_t |
27 ngx_file_aio_read(ngx_file_t *file, u_char *buf, size_t size, off_t offset, | 27 ngx_file_aio_read(ngx_file_t *file, u_char *buf, size_t size, off_t offset, |
28 ngx_pool_t *pool) | 28 ngx_pool_t *pool) |
29 { | 29 { |
30 long n; | 30 long n; |
31 struct iocb *piocb[1]; | 31 struct iocb *piocb[1]; |
32 ngx_event_t *ev; | 32 ngx_event_t *ev; |
33 ngx_event_aio_t *aio; | 33 ngx_event_aio_t *aio; |
34 static ngx_uint_t enosys = 0; | |
35 | 34 |
36 if (enosys) { | 35 if (!ngx_file_aio) { |
37 return ngx_read_file(file, buf, size, offset); | 36 return ngx_read_file(file, buf, size, offset); |
38 } | 37 } |
39 | 38 |
40 aio = file->aio; | 39 aio = file->aio; |
41 | 40 |
107 | 106 |
108 ngx_log_error(NGX_LOG_CRIT, file->log, n, | 107 ngx_log_error(NGX_LOG_CRIT, file->log, n, |
109 "io_submit(\"%V\") failed", &file->name); | 108 "io_submit(\"%V\") failed", &file->name); |
110 | 109 |
111 if (n == NGX_ENOSYS) { | 110 if (n == NGX_ENOSYS) { |
112 enosys = 1; | 111 ngx_file_aio = 0; |
113 return ngx_read_file(file, buf, size, offset); | 112 return ngx_read_file(file, buf, size, offset); |
114 } | 113 } |
115 | 114 |
116 return NGX_ERROR; | 115 return NGX_ERROR; |
117 } | 116 } |