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fix posix_fadvise() error handling

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This commit is contained in:
Igor Sysoev 2009-11-15 09:16:58 +00:00
parent 2169ef146b
commit fae7db9ae3
2 changed files with 21 additions and 1 deletions
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20
src/os/unix/ngx_files.c
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@ -402,6 +402,26 @@ ngx_unlock_fd(ngx_fd_t fd)
}
#if (NGX_HAVE_POSIX_FADVISE)
ngx_int_t
ngx_read_ahead(ngx_fd_t fd, size_t n)
{
int err;
err = posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL);
if (err == 0) {
return 0;
}
ngx_set_errno(err);
return NGX_FILE_ERROR;
}
#endif
#if (NGX_HAVE_O_DIRECT)
ngx_int_t

2
src/os/unix/ngx_files.h
View file

@ -264,7 +264,7 @@ ngx_err_t ngx_unlock_fd(ngx_fd_t fd);
#define NGX_HAVE_READ_AHEAD 1
#define ngx_read_ahead(fd, n) posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL)
ngx_int_t ngx_read_ahead(ngx_fd_t fd, size_t n);
#define ngx_read_ahead_n "posix_fadvise(POSIX_FADV_SEQUENTIAL)"
#else