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author | Igor Sysoev <igor@sysoev.ru> | 2017-06-14 15:18:52 +0300 |
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committer | Igor Sysoev <igor@sysoev.ru> | 2017-06-14 15:18:52 +0300 |
commit | 7574c64992b98d3dfbc3dd101bd0f7d78bad0823 (patch) | |
tree | 3a98c46e88d9023df34be3e6cce4f762d53aad36 /src/nxt_event_conn_write.c | |
parent | 3e2632688f53c4cb08e7ac03c61e71facd038df4 (diff) | |
download | unit-7574c64992b98d3dfbc3dd101bd0f7d78bad0823.tar.gz unit-7574c64992b98d3dfbc3dd101bd0f7d78bad0823.tar.bz2 |
nxt_event_conn_... functions and structures have been renamed
to nxt_conn_...
Diffstat (limited to 'src/nxt_event_conn_write.c')
-rw-r--r-- | src/nxt_event_conn_write.c | 420 |
1 files changed, 0 insertions, 420 deletions
diff --git a/src/nxt_event_conn_write.c b/src/nxt_event_conn_write.c deleted file mode 100644 index fa5b9241..00000000 --- a/src/nxt_event_conn_write.c +++ /dev/null @@ -1,420 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) NGINX, Inc. - */ - -#include <nxt_main.h> - - -static void nxt_event_conn_write_timer_handler(nxt_task_t *task, void *obj, - void *data); - - -void -nxt_conn_io_write(nxt_task_t *task, void *obj, void *data) -{ - ssize_t ret; - nxt_buf_t *b; - nxt_sendbuf_t sb; - nxt_event_conn_t *c; - nxt_event_engine_t *engine; - - c = obj; - - nxt_debug(task, "event conn write fd:%d", c->socket.fd); - - if (!c->socket.write_ready || c->write == NULL) { - return; - } - - engine = task->thread->engine; - - c->socket.write_handler = nxt_conn_io_write; - c->socket.error_handler = c->write_state->error_handler; - - b = c->write; - - sb.socket = c->socket.fd; - sb.error = 0; - sb.sent = 0; - sb.size = 0; - sb.buf = b; - sb.limit = 10 * 1024 * 1024; - sb.ready = 1; - sb.sync = 0; - - do { - ret = nxt_conn_io_sendbuf(task, &sb); - - c->socket.write_ready = sb.ready; - c->socket.error = sb.error; - - if (ret < 0) { - /* ret == NXT_AGAIN || ret == NXT_ERROR. */ - break; - } - - sb.sent += ret; - sb.limit -= ret; - - b = nxt_sendbuf_update(b, ret); - - if (b == NULL) { - nxt_fd_event_block_write(engine, &c->socket); - break; - } - - sb.buf = b; - - if (!c->socket.write_ready) { - ret = NXT_AGAIN; - break; - } - - } while (sb.limit != 0); - - nxt_debug(task, "event conn: %i sent:%z", ret, sb.sent); - - if (sb.sent != 0) { - if (c->write_state->timer_autoreset) { - nxt_timer_disable(engine, &c->write_timer); - } - } - - if (ret != NXT_ERROR) { - - if (sb.limit == 0) { - /* - * Postpone writing until next event poll to allow to - * process other recevied events and to get new events. - */ - c->write_timer.handler = nxt_event_conn_write_timer_handler; - nxt_timer_add(engine, &c->write_timer, 0); - - } else if (ret == NXT_AGAIN) { - /* - * SSL libraries can require to toggle either write or read - * event if renegotiation occurs during SSL write operation. - * This case is handled on the event_io->send() level. Timer - * can be set here because it should be set only for write - * direction. - */ - nxt_event_conn_timer(engine, c, c->write_state, &c->write_timer); - - if (nxt_fd_event_is_disabled(c->socket.write)) { - nxt_fd_event_enable_write(engine, &c->socket); - } - } - } - - if (ret == 0 || sb.sent != 0) { - /* "ret == 0" means a sync buffer was processed. */ - c->sent += sb.sent; - nxt_work_queue_add(c->write_work_queue, c->write_state->ready_handler, - task, c, data); - /* - * Fall through if first operations were - * successful but the last one failed. - */ - } - - if (nxt_slow_path(ret == NXT_ERROR)) { - nxt_fd_event_block_write(engine, &c->socket); - - nxt_work_queue_add(c->write_work_queue, c->write_state->error_handler, - task, c, data); - } -} - - -size_t -nxt_event_conn_write_limit(nxt_event_conn_t *c) -{ - ssize_t limit, correction; - nxt_event_write_rate_t *rate; - - rate = c->rate; - - if (rate == NULL) { - return c->max_chunk; - } - - limit = rate->limit; - correction = limit - (size_t) rate->average; - - nxt_debug(c->socket.task, "event conn correction:%z average:%0.3f", - correction, rate->average); - - limit += correction; - - if (limit <= 0) { - return 0; - } - - if (rate->limit_after != 0) { - limit += rate->limit_after; - limit = nxt_min((size_t) limit, rate->max_limit); - } - - return nxt_min((size_t) limit, c->max_chunk); -} - - -nxt_bool_t -nxt_event_conn_write_delayed(nxt_event_engine_t *engine, nxt_event_conn_t *c, - size_t sent) -{ - return 0; -} - - -static void -nxt_event_conn_write_timer_handler(nxt_task_t *task, void *obj, void *data) -{ - nxt_timer_t *ev; - nxt_event_conn_t *c; - - ev = obj; - - nxt_debug(task, "event conn conn timer"); - - c = nxt_event_write_timer_conn(ev); - c->delayed = 0; - - c->io->write(task, c, c->socket.data); -} - - -ssize_t -nxt_event_conn_io_write_chunk(nxt_event_conn_t *c, nxt_buf_t *b, size_t limit) -{ - ssize_t ret; - - ret = c->io->sendbuf(c, b, limit); - - if ((ret == NXT_AGAIN || !c->socket.write_ready) - && nxt_fd_event_is_disabled(c->socket.write)) - { - nxt_fd_event_enable_write(c->socket.task->thread->engine, &c->socket); - } - - return ret; -} - - -ssize_t -nxt_event_conn_io_sendbuf(nxt_event_conn_t *c, nxt_buf_t *b, size_t limit) -{ - nxt_uint_t niob; - struct iovec iob[NXT_IOBUF_MAX]; - nxt_sendbuf_coalesce_t sb; - - sb.buf = b; - sb.iobuf = iob; - sb.nmax = NXT_IOBUF_MAX; - sb.sync = 0; - sb.size = 0; - sb.limit = limit; - - niob = nxt_sendbuf_mem_coalesce(c->socket.task, &sb); - - if (niob == 0 && sb.sync) { - return 0; - } - - return nxt_event_conn_io_writev(c, iob, niob); -} - - -ssize_t -nxt_event_conn_io_writev(nxt_event_conn_t *c, nxt_iobuf_t *iob, nxt_uint_t niob) -{ - ssize_t n; - nxt_err_t err; - - if (niob == 1) { - /* Disposal of surplus kernel iovec copy-in operation. */ - return nxt_event_conn_io_send(c, iob->iov_base, iob->iov_len); - } - - for ( ;; ) { - n = writev(c->socket.fd, iob, niob); - - err = (n == -1) ? nxt_socket_errno : 0; - - nxt_debug(c->socket.task, "writev(%d, %ui): %d", c->socket.fd, niob, n); - - if (n > 0) { - return n; - } - - /* n == -1 */ - - switch (err) { - - case NXT_EAGAIN: - nxt_debug(c->socket.task, "writev() %E", err); - c->socket.write_ready = 0; - return NXT_AGAIN; - - case NXT_EINTR: - nxt_debug(c->socket.task, "writev() %E", err); - continue; - - default: - c->socket.error = err; - nxt_log(c->socket.task, nxt_socket_error_level(err), - "writev(%d, %ui) failed %E", c->socket.fd, niob, err); - return NXT_ERROR; - } - } -} - - -ssize_t -nxt_event_conn_io_send(nxt_event_conn_t *c, void *buf, size_t size) -{ - ssize_t n; - nxt_err_t err; - - for ( ;; ) { - n = send(c->socket.fd, buf, size, 0); - - err = (n == -1) ? nxt_socket_errno : 0; - - nxt_debug(c->socket.task, "send(%d, %p, %uz): %z", - c->socket.fd, buf, size, n); - - if (n > 0) { - return n; - } - - /* n == -1 */ - - switch (err) { - - case NXT_EAGAIN: - nxt_debug(c->socket.task, "send() %E", err); - c->socket.write_ready = 0; - return NXT_AGAIN; - - case NXT_EINTR: - nxt_debug(c->socket.task, "send() %E", err); - continue; - - default: - c->socket.error = err; - nxt_log(c->socket.task, nxt_socket_error_level(err), - "send(%d, %p, %uz) failed %E", - c->socket.fd, buf, size, err); - return NXT_ERROR; - } - } -} - - -ssize_t -nxt_conn_io_sendbuf(nxt_task_t *task, nxt_sendbuf_t *sb) -{ - nxt_uint_t niov; - struct iovec iov[NXT_IOBUF_MAX]; - - niov = nxt_sendbuf_mem_coalesce0(task, sb, iov, NXT_IOBUF_MAX); - - if (niov == 0 && sb->sync) { - return 0; - } - - return nxt_conn_io_writev(task, sb, iov, niov); -} - - -ssize_t -nxt_conn_io_writev(nxt_task_t *task, nxt_sendbuf_t *sb, struct iovec *iov, - nxt_uint_t niov) -{ - ssize_t n; - nxt_err_t err; - - if (niov == 1) { - /* Disposal of surplus kernel iovec copy-in operation. */ - return nxt_conn_io_send(task, sb, iov[0].iov_base, iov[0].iov_len); - } - - for ( ;; ) { - n = writev(sb->socket, iov, niov); - - err = (n == -1) ? nxt_socket_errno : 0; - - nxt_debug(task, "writev(%d, %ui): %d", sb->socket, niov, n); - - if (n > 0) { - return n; - } - - /* n == -1 */ - - switch (err) { - - case NXT_EAGAIN: - sb->ready = 0; - nxt_debug(task, "writev() %E", err); - - return NXT_AGAIN; - - case NXT_EINTR: - nxt_debug(task, "writev() %E", err); - continue; - - default: - sb->error = err; - nxt_log(task, nxt_socket_error_level(err), - "writev(%d, %ui) failed %E", sb->socket, niov, err); - - return NXT_ERROR; - } - } -} - - -ssize_t -nxt_conn_io_send(nxt_task_t *task, nxt_sendbuf_t *sb, void *buf, size_t size) -{ - ssize_t n; - nxt_err_t err; - - for ( ;; ) { - n = send(sb->socket, buf, size, 0); - - err = (n == -1) ? nxt_socket_errno : 0; - - nxt_debug(task, "send(%d, %p, %uz): %z", sb->socket, buf, size, n); - - if (n > 0) { - return n; - } - - /* n == -1 */ - - switch (err) { - - case NXT_EAGAIN: - sb->ready = 0; - nxt_debug(task, "send() %E", err); - - return NXT_AGAIN; - - case NXT_EINTR: - nxt_debug(task, "send() %E", err); - continue; - - default: - sb->error = err; - nxt_log(task, nxt_socket_error_level(err), - "send(%d, %p, %uz) failed %E", sb->socket, buf, size, err); - - return NXT_ERROR; - } - } -} |