new file mode 100644
--- /dev/null
+++ b/src/os/unix/ngx_solaris_sendfilev_chain.c
@@ -0,0 +1,206 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_event.h>
+
+
+#define NGX_SENDFILEVECS   16
+
+
+ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in,
+                                         off_t limit)
+{
+    int             fd;
+    u_char         *prev;
+    off_t           fprev, sprev, send, aligned;
+    ssize_t         size, sent, n;
+    ngx_int_t       eintr, complete;
+    ngx_err_t       err;
+    sendfilevec_t  *sfv, sfvs[NGX_SENDFILEVECS];
+    ngx_array_t     vec;
+    ngx_event_t    *wev;
+    ngx_chain_t    *cl, *tail;
+
+    wev = c->write;
+
+    if (!wev->ready) {
+        return in;
+    }
+
+    send = 0;
+    complete = 0;
+
+    vec.elts = sfvs;
+    vec.size = sizeof(sendfilevec_t);
+    vec.nalloc = NGX_SENDFILEVECS;
+    vec.pool = c->pool;
+
+    for ( ;; ) {
+        fd = SFV_FD_SELF;
+        prev = NULL;
+        fprev = 0;
+        sfv = NULL;
+        eintr = 0;
+        sent = 0;
+        sprev = send;
+
+        vec.nelts = 0;
+
+        /* create the sendfilevec and coalesce the neighbouring bufs */
+
+        for (cl = in; cl && vec.nelts < IOV_MAX && send < limit; cl = cl->next)
+        {
+            if (ngx_buf_special(cl->buf)) {
+                continue;
+            }
+
+            if (ngx_buf_in_memory_only(cl->buf)) {
+                fd = SFV_FD_SELF;
+
+                size = cl->buf->last - cl->buf->pos;
+
+                if (send + size > limit) {
+                    size = limit - send;
+                }
+
+                if (prev == cl->buf->pos) {
+                    sfv->sfv_len += size;
+
+                } else {
+                    if (!(sfv = ngx_array_push(&vec))) {
+                        return NGX_CHAIN_ERROR;
+                    }
+
+                    sfv->sfv_fd = SFV_FD_SELF;
+                    sfv->sfv_flag = 0;
+                    sfv->sfv_off = (off_t) (uintptr_t) cl->buf->pos;
+                    sfv->sfv_len = size;
+                }
+
+                prev = cl->buf->pos + size;
+                send += size;
+
+            } else {
+                prev = NULL;
+
+                size = (size_t) (cl->buf->file_last - cl->buf->file_pos);
+
+                if (send + size > limit) {
+                    size = limit - send;
+
+                    aligned = (cl->buf->file_pos + size + ngx_pagesize - 1)
+                                                      & ~(ngx_pagesize - 1);
+
+                    if (aligned <= cl->buf->file_last) {
+                        size = aligned - cl->buf->file_pos;
+                    }
+                }
+
+                if (fd == cl->buf->file->fd && fprev == cl->buf->file_pos) {
+                    sfv->sfv_len += size;
+
+                } else {
+                    if (!(sfv = ngx_array_push(&vec))) {
+                        return NGX_CHAIN_ERROR;
+                    }
+
+                    fd = cl->buf->file->fd;
+                    sfv->sfv_fd = fd;
+                    sfv->sfv_flag = 0;
+                    sfv->sfv_off = cl->buf->file_pos;
+                    sfv->sfv_len = size;
+                }
+
+                fprev = cl->buf->file_pos + size;
+                send += size;
+            }
+        }
+
+        n = sendfilev(c->fd, vec.elts, vec.nelts, &sent);
+
+        if (n == -1) {
+            err = ngx_errno;
+
+            if (err == NGX_EAGAIN || err == NGX_EINTR) {
+                if (err == NGX_EINTR) {
+                    eintr = 1;
+                }
+
+                ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, err,
+                              "sendfilev() sent only " SIZE_T_FMT " bytes",
+                              sent);
+
+            } else {
+                wev->error = 1;
+                ngx_connection_error(c, err, "sendfilev() failed");
+                return NGX_CHAIN_ERROR;
+            }
+        }
+
+        ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
+                       "sendfilev: %d " SIZE_T_FMT, n, sent);
+
+        if (send - sprev == sent) {
+            complete = 1;
+        }
+
+        c->sent += sent;
+
+        for (cl = in; cl; cl = cl->next) {
+
+            if (ngx_buf_special(cl->buf)) {
+                continue; 
+            }
+
+            if (sent == 0) {
+                break;
+            }
+
+            size = ngx_buf_size(cl->buf);
+
+            if (sent >= size) {
+                sent -= size;
+
+                if (ngx_buf_in_memory(cl->buf)) {
+                    cl->buf->pos = cl->buf->last;
+                }
+
+                if (cl->buf->in_file) {
+                    cl->buf->file_pos = cl->buf->file_last;
+                }
+
+                continue;
+            }
+
+            if (ngx_buf_in_memory(cl->buf)) {
+                cl->buf->pos += sent;
+            }
+
+            if (cl->buf->in_file) {
+                cl->buf->file_pos += sent;
+            }
+
+            break;
+        }
+
+        if (eintr) {
+            continue;
+        }
+
+        if (!complete) {
+            wev->ready = 0;
+            return cl;
+        }
+
+        if (send >= limit || cl == NULL) {
+            return cl;
+        }
+
+        in = cl;
+    }
+}