127 lines
3.0 KiB
C
127 lines
3.0 KiB
C
|
|
/*
|
|
* Copyright (C) Igor Sysoev
|
|
* Copyright (C) NGINX, Inc.
|
|
*/
|
|
|
|
#include <nxt_main.h>
|
|
|
|
|
|
/* send_file() has been introduced in AIX 4.3.2 */
|
|
|
|
ssize_t nxt_aix_event_conn_io_send_file(nxt_event_conn_t *c, nxt_buf_t *b,
|
|
size_t limit);
|
|
|
|
|
|
ssize_t
|
|
nxt_aix_event_conn_io_send_file(nxt_event_conn_t *c, nxt_buf_t *b, size_t limit)
|
|
{
|
|
ssize_t n;
|
|
nxt_buf_t *fb;
|
|
nxt_err_t err;
|
|
nxt_off_t file_size, sent;
|
|
nxt_uint_t nhd, ntr;
|
|
struct iovec hd[NXT_IOBUF_MAX], tr;
|
|
struct sf_parms sfp;
|
|
nxt_sendbuf_coalesce_t sb;
|
|
|
|
sb.buf = b;
|
|
sb.iobuf = hd;
|
|
sb.nmax = NXT_IOBUF_MAX;
|
|
sb.sync = 0;
|
|
sb.size = 0;
|
|
sb.limit = limit;
|
|
|
|
nhd = nxt_sendbuf_mem_coalesce(c->socket.task, &sb);
|
|
|
|
if (nhd == 0 && sb.sync) {
|
|
return 0;
|
|
}
|
|
|
|
if (nhd > 1 || sb.buf == NULL || !nxt_buf_is_file(sb.buf)) {
|
|
return nxt_event_conn_io_writev(c, hd, nhd);
|
|
}
|
|
|
|
fb = sb.buf;
|
|
|
|
file_size = nxt_sendbuf_file_coalesce(&sb);
|
|
|
|
if (file_size == 0) {
|
|
return nxt_event_conn_io_writev(c, hd, nhd);
|
|
}
|
|
|
|
sb.iobuf = &tr;
|
|
sb.nmax = 1;
|
|
|
|
ntr = nxt_sendbuf_mem_coalesce(c->socket.task, &sb);
|
|
|
|
nxt_memzero(&sfp, sizeof(struct sf_parms));
|
|
|
|
if (nhd != 0) {
|
|
sfp.header_data = hd[0].iov_base;
|
|
sfp.header_length = hd[0].iov_len;
|
|
}
|
|
|
|
sfp.file_descriptor = fb->file->fd;
|
|
sfp.file_offset = fb->file_pos;
|
|
sfp.file_bytes = file_size;
|
|
|
|
if (ntr != 0) {
|
|
sfp.trailer_data = tr.iov_base;
|
|
sfp.trailer_length = tr.iov_len;
|
|
}
|
|
|
|
nxt_debug(c->socket.task, "send_file(%d) fd:%FD @%O:%O hd:%ui tr:%ui",
|
|
c->socket.fd, fb->file->fd, fb->file_pos, file_size, nhd, ntr);
|
|
|
|
n = send_file(&c->socket.fd, &sfp, 0);
|
|
|
|
err = (n == -1) ? nxt_errno : 0;
|
|
sent = sfp.bytes_sent;
|
|
|
|
nxt_debug(c->socket.task, "send_file(%d): %d sent:%O",
|
|
c->socket.fd, n, sent);
|
|
|
|
/*
|
|
* -1 an error has occurred, errno contains the error code;
|
|
* 0 the command has completed successfully;
|
|
* 1 the command was completed partially, some data has been
|
|
* transmitted but the command has to return for some reason,
|
|
* for example, the command was interrupted by signals.
|
|
*/
|
|
if (n == -1) {
|
|
switch (err) {
|
|
|
|
case NXT_EAGAIN:
|
|
c->socket.write_ready = 0;
|
|
break;
|
|
|
|
case NXT_EINTR:
|
|
break;
|
|
|
|
default:
|
|
c->socket.error = err;
|
|
nxt_log(c->socket.task, nxt_socket_error_level(err),
|
|
"send_file(%d) failed %E \"%FN\" fd:%FD @%O:%O hd:%ui tr:%ui",
|
|
c->socket.fd, err, fb->file->name, fb->file->fd, fb->file_pos,
|
|
file_size, nhd, ntr);
|
|
|
|
return NXT_ERROR;
|
|
}
|
|
|
|
nxt_debug(c->socket.task, "sendfile() %E", err);
|
|
|
|
return sent;
|
|
}
|
|
|
|
if (n == 1) {
|
|
return sent;
|
|
}
|
|
|
|
if (sent < (nxt_off_t) sb.size) {
|
|
c->socket.write_ready = 0;
|
|
}
|
|
|
|
return sent;
|
|
}
|