Mercurial > hg > nginx-quic
view src/os/unix/ngx_send.c @ 4749:613750237b36
Entity tags: the "etag" directive.
It allows to disable generation of nginx's own entity tags, while
still handling ETags in cache properly. This may be useful e.g.
if one want to serve static files from servers with different ETag
generation algorithms.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 09 Jul 2012 14:53:42 +0000 |
parents | d620f497c50f |
children | f01ab2dbcfdc |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> ssize_t ngx_unix_send(ngx_connection_t *c, u_char *buf, size_t size) { ssize_t n; ngx_err_t err; ngx_event_t *wev; wev = c->write; #if (NGX_HAVE_KQUEUE) if ((ngx_event_flags & NGX_USE_KQUEUE_EVENT) && wev->pending_eof) { (void) ngx_connection_error(c, wev->kq_errno, "kevent() reported about an closed connection"); wev->error = 1; return NGX_ERROR; } #endif for ( ;; ) { n = send(c->fd, buf, size, 0); ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, "send: fd:%d %d of %d", c->fd, n, size); if (n > 0) { if (n < (ssize_t) size) { wev->ready = 0; } c->sent += n; return n; } err = ngx_socket_errno; if (n == 0) { ngx_log_error(NGX_LOG_ALERT, c->log, err, "send() returned zero"); wev->ready = 0; return n; } if (err == NGX_EAGAIN || err == NGX_EINTR) { wev->ready = 0; ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, "send() not ready"); if (err == NGX_EAGAIN) { return NGX_AGAIN; } } else { wev->error = 1; (void) ngx_connection_error(c, err, "send() failed"); return NGX_ERROR; } } }