2003-05-20 00:39:14 +08:00
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#include <ngx_config.h>
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#include <ngx_core.h>
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2003-06-11 23:28:34 +08:00
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#include <ngx_event.h>
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2003-05-20 00:39:14 +08:00
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2003-05-27 20:18:54 +08:00
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#if (HAVE_KQUEUE)
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2004-03-16 15:10:12 +08:00
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ssize_t ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size)
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2003-05-20 00:39:14 +08:00
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{
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ssize_t n;
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2004-02-09 15:46:43 +08:00
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ngx_err_t err;
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2003-05-27 20:18:54 +08:00
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ngx_event_t *rev;
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2003-05-20 00:39:14 +08:00
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2003-05-27 20:18:54 +08:00
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rev = c->read;
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2003-05-20 00:39:14 +08:00
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if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) {
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2004-01-06 04:55:48 +08:00
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ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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"recv: eof:%d, avail:%d, err:%d",
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rev->kq_eof, rev->available, rev->kq_errno);
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2003-05-27 20:18:54 +08:00
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if (rev->available == 0) {
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2003-10-28 23:45:41 +08:00
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if (rev->kq_eof) {
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2003-10-17 04:19:16 +08:00
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rev->ready = 0;
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2003-10-28 23:45:41 +08:00
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rev->eof = 1;
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2004-02-09 15:46:43 +08:00
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ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
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"kevent() reported about an closed connection");
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2003-10-28 23:45:41 +08:00
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if (rev->kq_errno) {
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rev->error = 1;
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ngx_set_socket_errno(rev->kq_errno);
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2004-01-06 04:55:48 +08:00
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if (rev->kq_errno == NGX_ECONNRESET
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2004-02-11 00:23:38 +08:00
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&& c->log_error == NGX_ERROR_IGNORE_ECONNRESET)
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2004-01-06 04:55:48 +08:00
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{
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return 0;
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}
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return NGX_ERROR;
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2003-05-27 20:18:54 +08:00
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}
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2003-10-28 23:45:41 +08:00
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2003-05-27 20:18:54 +08:00
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return 0;
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} else {
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return NGX_AGAIN;
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}
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}
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2003-05-20 00:39:14 +08:00
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}
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2003-05-27 20:18:54 +08:00
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do {
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n = recv(c->fd, buf, size, 0);
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2003-05-20 00:39:14 +08:00
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2004-02-09 15:46:43 +08:00
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ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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"recv: fd:%d %d of %d", c->fd, n, size);
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2003-05-20 00:39:14 +08:00
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2003-05-27 20:18:54 +08:00
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if (n >= 0) {
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if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) {
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rev->available -= n;
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2003-10-28 23:45:41 +08:00
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/*
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* rev->available can be negative here because some additional
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* bytes can be received between kevent() and recv()
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*/
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2003-10-13 00:49:16 +08:00
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if (rev->available <= 0) {
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2003-10-28 23:45:41 +08:00
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if (!rev->kq_eof) {
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2003-10-17 04:19:16 +08:00
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rev->ready = 0;
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}
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2003-10-13 00:49:16 +08:00
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if (rev->available < 0) {
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rev->available = 0;
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}
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2003-05-27 20:18:54 +08:00
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}
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2003-05-20 00:39:14 +08:00
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2003-05-27 20:18:54 +08:00
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return n;
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}
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2003-05-20 00:39:14 +08:00
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2003-05-27 20:18:54 +08:00
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if ((size_t) n < size) {
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rev->ready = 0;
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}
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2003-05-20 00:39:14 +08:00
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2003-10-28 23:45:41 +08:00
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if (n == 0) {
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rev->eof = 1;
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}
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2003-05-27 20:18:54 +08:00
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return n;
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2003-05-20 00:39:14 +08:00
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}
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2004-02-09 15:46:43 +08:00
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err = ngx_socket_errno;
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2003-05-27 20:18:54 +08:00
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2004-02-09 15:46:43 +08:00
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if (err == NGX_EAGAIN || err == NGX_EINTR) {
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2004-02-12 01:08:49 +08:00
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ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err,
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2004-02-09 15:46:43 +08:00
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"recv() not ready");
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n = NGX_AGAIN;
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} else {
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n = ngx_connection_error(c, err, "recv() failed");
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break;
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}
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2003-05-20 00:39:14 +08:00
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2004-02-09 15:46:43 +08:00
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} while (err == NGX_EINTR);
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2003-11-18 16:04:34 +08:00
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rev->ready = 0;
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2003-11-14 15:20:34 +08:00
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if (n == NGX_ERROR){
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rev->error = 1;
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}
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2003-05-27 20:18:54 +08:00
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return n;
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}
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2003-05-20 00:39:14 +08:00
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2003-05-27 20:18:54 +08:00
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#else /* ! NAVE_KQUEUE */
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2003-05-21 21:28:21 +08:00
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2004-04-02 23:13:20 +08:00
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ssize_t ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size)
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2003-05-27 20:18:54 +08:00
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{
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ssize_t n;
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2004-02-09 15:46:43 +08:00
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ngx_err_t err;
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2003-05-27 20:18:54 +08:00
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ngx_event_t *rev;
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2003-05-20 00:39:14 +08:00
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2003-05-27 20:18:54 +08:00
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rev = c->read;
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2003-05-20 00:39:14 +08:00
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2003-05-27 20:18:54 +08:00
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do {
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n = recv(c->fd, buf, size, 0);
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2003-05-20 00:39:14 +08:00
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2004-02-09 15:46:43 +08:00
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ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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"recv: fd:%d %d of %d", c->fd, n, size);
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2003-05-20 00:39:14 +08:00
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2004-04-28 14:14:50 +08:00
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if (n == 0) {
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rev->ready = 0;
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rev->eof = 1;
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return n;
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2003-10-28 23:45:41 +08:00
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2004-04-28 14:14:50 +08:00
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} else if (n > 0) {
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if ((size_t) n < size
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&& !(ngx_event_flags & NGX_HAVE_GREEDY_EVENT))
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{
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rev->ready = 0;
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2003-10-28 23:45:41 +08:00
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}
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2003-05-27 20:18:54 +08:00
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return n;
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2003-05-20 00:39:14 +08:00
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}
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2004-02-09 15:46:43 +08:00
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err = ngx_socket_errno;
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if (err == NGX_EAGAIN || err == NGX_EINTR) {
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2004-02-12 01:08:49 +08:00
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ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err,
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2004-02-09 15:46:43 +08:00
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"recv() not ready");
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n = NGX_AGAIN;
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2003-05-20 00:39:14 +08:00
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2004-02-09 15:46:43 +08:00
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} else {
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n = ngx_connection_error(c, err, "recv() failed");
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break;
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}
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2003-05-27 20:18:54 +08:00
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2004-02-09 15:46:43 +08:00
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} while (err == NGX_EINTR);
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2003-11-18 16:04:34 +08:00
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rev->ready = 0;
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2003-11-14 15:20:34 +08:00
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if (n == NGX_ERROR){
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rev->error = 1;
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}
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2003-05-27 20:18:54 +08:00
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return n;
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}
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#endif /* NAVE_KQUEUE */
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