| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <assert.h> |
| #include <stddef.h> |
| |
| #include <apr_atomic.h> |
| #include <apr_strings.h> |
| |
| #include <httpd.h> |
| #include <http_core.h> |
| #include <http_connection.h> |
| #include <http_protocol.h> |
| #include <http_request.h> |
| #include <http_log.h> |
| #include <http_vhost.h> |
| #include <util_filter.h> |
| #include <ap_mpm.h> |
| #include <mod_core.h> |
| #include <scoreboard.h> |
| |
| #include "h2_private.h" |
| #include "h2.h" |
| #include "h2_bucket_beam.h" |
| #include "h2_conn.h" |
| #include "h2_config.h" |
| #include "h2_ctx.h" |
| #include "h2_from_h1.h" |
| #include "h2_h2.h" |
| #include "h2_mplx.h" |
| #include "h2_request.h" |
| #include "h2_headers.h" |
| #include "h2_session.h" |
| #include "h2_stream.h" |
| #include "h2_task.h" |
| #include "h2_util.h" |
| |
| static void H2_TASK_OUT_LOG(int lvl, h2_task *task, apr_bucket_brigade *bb, |
| const char *tag) |
| { |
| if (APLOG_C_IS_LEVEL(task->c, lvl)) { |
| conn_rec *c = task->c; |
| char buffer[4 * 1024]; |
| const char *line = "(null)"; |
| apr_size_t len, bmax = sizeof(buffer)/sizeof(buffer[0]); |
| |
| len = h2_util_bb_print(buffer, bmax, tag, "", bb); |
| ap_log_cerror(APLOG_MARK, lvl, 0, c, "bb_dump(%s): %s", |
| task->id, len? buffer : line); |
| } |
| } |
| |
| /******************************************************************************* |
| * task input handling |
| ******************************************************************************/ |
| |
| static int input_ser_header(void *ctx, const char *name, const char *value) |
| { |
| h2_task *task = ctx; |
| apr_brigade_printf(task->input.bb, NULL, NULL, "%s: %s\r\n", name, value); |
| return 1; |
| } |
| |
| /******************************************************************************* |
| * task output handling |
| ******************************************************************************/ |
| |
| static apr_status_t open_output(h2_task *task) |
| { |
| ap_log_cerror(APLOG_MARK, APLOG_DEBUG, 0, task->c, APLOGNO(03348) |
| "h2_task(%s): open output to %s %s %s", |
| task->id, task->request->method, |
| task->request->authority, |
| task->request->path); |
| task->output.opened = 1; |
| return h2_mplx_out_open(task->mplx, task->stream_id, task->output.beam); |
| } |
| |
| static apr_status_t send_out(h2_task *task, apr_bucket_brigade* bb, int block) |
| { |
| apr_off_t written, left; |
| apr_status_t status; |
| |
| apr_brigade_length(bb, 0, &written); |
| H2_TASK_OUT_LOG(APLOG_TRACE2, task, bb, "h2_task send_out"); |
| h2_beam_log(task->output.beam, task->c, APLOG_TRACE2, "send_out(before)"); |
| |
| status = h2_beam_send(task->output.beam, bb, |
| block? APR_BLOCK_READ : APR_NONBLOCK_READ); |
| h2_beam_log(task->output.beam, task->c, APLOG_TRACE2, "send_out(after)"); |
| |
| if (APR_STATUS_IS_EAGAIN(status)) { |
| apr_brigade_length(bb, 0, &left); |
| written -= left; |
| status = APR_SUCCESS; |
| } |
| if (status == APR_SUCCESS) { |
| if (h2_task_logio_add_bytes_out) { |
| h2_task_logio_add_bytes_out(task->c, written); |
| } |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE2, 0, task->c, |
| "h2_task(%s): send_out done", task->id); |
| } |
| else { |
| ap_log_cerror(APLOG_MARK, APLOG_DEBUG, status, task->c, |
| "h2_task(%s): send_out (%ld bytes)", |
| task->id, (long)written); |
| } |
| return status; |
| } |
| |
| /* Bring the data from the brigade (which represents the result of the |
| * request_rec out filter chain) into the h2_mplx for further sending |
| * on the master connection. |
| */ |
| static apr_status_t slave_out(h2_task *task, ap_filter_t* f, |
| apr_bucket_brigade* bb) |
| { |
| apr_bucket *b; |
| apr_status_t rv = APR_SUCCESS; |
| int flush = 0, blocking; |
| |
| send: |
| /* we send block once we opened the output, so someone is there reading it */ |
| blocking = task->output.opened; |
| for (b = APR_BRIGADE_FIRST(bb); |
| b != APR_BRIGADE_SENTINEL(bb); |
| b = APR_BUCKET_NEXT(b)) { |
| if (APR_BUCKET_IS_FLUSH(b) || APR_BUCKET_IS_EOS(b) || AP_BUCKET_IS_EOR(b)) { |
| flush = 1; |
| break; |
| } |
| } |
| |
| if (task->output.bb && !APR_BRIGADE_EMPTY(task->output.bb)) { |
| /* still have data buffered from previous attempt. |
| * setaside and append new data and try to pass the complete data */ |
| if (!APR_BRIGADE_EMPTY(bb)) { |
| if (APR_SUCCESS != (rv = ap_save_brigade(f, &task->output.bb, &bb, task->pool))) { |
| goto out; |
| } |
| } |
| rv = send_out(task, task->output.bb, blocking); |
| } |
| else { |
| /* no data buffered previously, pass brigade directly */ |
| rv = send_out(task, bb, blocking); |
| |
| if (APR_SUCCESS == rv && !APR_BRIGADE_EMPTY(bb)) { |
| /* output refused to buffer it all, time to open? */ |
| if (!task->output.opened && APR_SUCCESS == (rv = open_output(task))) { |
| /* Make another attempt to send the data. With the output open, |
| * the call might be blocking and send all data, so we do not need |
| * to save the brigade */ |
| goto send; |
| } |
| else if (blocking && flush) { |
| /* Need to keep on doing this. */ |
| goto send; |
| } |
| |
| if (APR_SUCCESS == rv) { |
| /* could not write all, buffer the rest */ |
| ap_log_cerror(APLOG_MARK, APLOG_DEBUG, rv, task->c, APLOGNO(03405) |
| "h2_slave_out(%s): saving brigade", task->id); |
| ap_assert(NULL); |
| rv = ap_save_brigade(f, &task->output.bb, &bb, task->pool); |
| flush = 1; |
| } |
| } |
| } |
| |
| if (APR_SUCCESS == rv && !task->output.opened && flush) { |
| /* got a flush or could not write all, time to tell someone to read */ |
| rv = open_output(task); |
| } |
| out: |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE2, rv, task->c, |
| "h2_slave_out(%s): slave_out leave", task->id); |
| return rv; |
| } |
| |
| static apr_status_t output_finish(h2_task *task) |
| { |
| if (!task->output.opened) { |
| return open_output(task); |
| } |
| return APR_SUCCESS; |
| } |
| |
| /******************************************************************************* |
| * task slave connection filters |
| ******************************************************************************/ |
| |
| static apr_status_t h2_filter_slave_in(ap_filter_t* f, |
| apr_bucket_brigade* bb, |
| ap_input_mode_t mode, |
| apr_read_type_e block, |
| apr_off_t readbytes) |
| { |
| h2_task *task; |
| apr_status_t status = APR_SUCCESS; |
| apr_bucket *b, *next; |
| apr_off_t bblen; |
| const int trace1 = APLOGctrace1(f->c); |
| apr_size_t rmax = ((readbytes <= APR_SIZE_MAX)? |
| (apr_size_t)readbytes : APR_SIZE_MAX); |
| |
| task = h2_ctx_get_task(f->c); |
| ap_assert(task); |
| |
| if (trace1) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, f->c, |
| "h2_slave_in(%s): read, mode=%d, block=%d, readbytes=%ld", |
| task->id, mode, block, (long)readbytes); |
| } |
| |
| if (mode == AP_MODE_INIT) { |
| return ap_get_brigade(f->c->input_filters, bb, mode, block, readbytes); |
| } |
| |
| if (f->c->aborted) { |
| return APR_ECONNABORTED; |
| } |
| |
| if (!task->input.bb) { |
| return APR_EOF; |
| } |
| |
| /* Cleanup brigades from those nasty 0 length non-meta buckets |
| * that apr_brigade_split_line() sometimes produces. */ |
| for (b = APR_BRIGADE_FIRST(task->input.bb); |
| b != APR_BRIGADE_SENTINEL(task->input.bb); b = next) { |
| next = APR_BUCKET_NEXT(b); |
| if (b->length == 0 && !APR_BUCKET_IS_METADATA(b)) { |
| apr_bucket_delete(b); |
| } |
| } |
| |
| while (APR_BRIGADE_EMPTY(task->input.bb)) { |
| /* Get more input data for our request. */ |
| if (trace1) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, f->c, |
| "h2_slave_in(%s): get more data from mplx, block=%d, " |
| "readbytes=%ld", task->id, block, (long)readbytes); |
| } |
| if (task->input.beam) { |
| status = h2_beam_receive(task->input.beam, task->input.bb, block, |
| 128*1024); |
| } |
| else { |
| status = APR_EOF; |
| } |
| |
| if (trace1) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE2, status, f->c, |
| "h2_slave_in(%s): read returned", task->id); |
| } |
| if (APR_STATUS_IS_EAGAIN(status) |
| && (mode == AP_MODE_GETLINE || block == APR_BLOCK_READ)) { |
| /* chunked input handling does not seem to like it if we |
| * return with APR_EAGAIN from a GETLINE read... |
| * upload 100k test on test-ser.example.org hangs */ |
| status = APR_SUCCESS; |
| } |
| else if (APR_STATUS_IS_EOF(status)) { |
| break; |
| } |
| else if (status != APR_SUCCESS) { |
| return status; |
| } |
| |
| if (trace1) { |
| h2_util_bb_log(f->c, task->stream_id, APLOG_TRACE2, |
| "input.beam recv raw", task->input.bb); |
| } |
| if (h2_task_logio_add_bytes_in) { |
| apr_brigade_length(bb, 0, &bblen); |
| h2_task_logio_add_bytes_in(f->c, bblen); |
| } |
| } |
| |
| /* Nothing there, no more data to get. Return. */ |
| if (status == APR_EOF && APR_BRIGADE_EMPTY(task->input.bb)) { |
| return status; |
| } |
| |
| if (trace1) { |
| h2_util_bb_log(f->c, task->stream_id, APLOG_TRACE2, |
| "task_input.bb", task->input.bb); |
| } |
| |
| if (APR_BRIGADE_EMPTY(task->input.bb)) { |
| if (trace1) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, f->c, |
| "h2_slave_in(%s): no data", task->id); |
| } |
| return (block == APR_NONBLOCK_READ)? APR_EAGAIN : APR_EOF; |
| } |
| |
| if (mode == AP_MODE_EXHAUSTIVE) { |
| /* return all we have */ |
| APR_BRIGADE_CONCAT(bb, task->input.bb); |
| } |
| else if (mode == AP_MODE_READBYTES) { |
| status = h2_brigade_concat_length(bb, task->input.bb, rmax); |
| } |
| else if (mode == AP_MODE_SPECULATIVE) { |
| status = h2_brigade_copy_length(bb, task->input.bb, rmax); |
| } |
| else if (mode == AP_MODE_GETLINE) { |
| /* we are reading a single LF line, e.g. the HTTP headers. |
| * this has the nasty side effect to split the bucket, even |
| * though it ends with CRLF and creates a 0 length bucket */ |
| status = apr_brigade_split_line(bb, task->input.bb, block, |
| HUGE_STRING_LEN); |
| if (APLOGctrace1(f->c)) { |
| char buffer[1024]; |
| apr_size_t len = sizeof(buffer)-1; |
| apr_brigade_flatten(bb, buffer, &len); |
| buffer[len] = 0; |
| if (trace1) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, f->c, |
| "h2_slave_in(%s): getline: %s", |
| task->id, buffer); |
| } |
| } |
| } |
| else { |
| /* Hmm, well. There is mode AP_MODE_EATCRLF, but we chose not |
| * to support it. Seems to work. */ |
| ap_log_cerror(APLOG_MARK, APLOG_ERR, APR_ENOTIMPL, f->c, |
| APLOGNO(03472) |
| "h2_slave_in(%s), unsupported READ mode %d", |
| task->id, mode); |
| status = APR_ENOTIMPL; |
| } |
| |
| if (trace1) { |
| apr_brigade_length(bb, 0, &bblen); |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, f->c, |
| "h2_slave_in(%s): %ld data bytes", task->id, (long)bblen); |
| } |
| return status; |
| } |
| |
| static apr_status_t h2_filter_slave_output(ap_filter_t* filter, |
| apr_bucket_brigade* brigade) |
| { |
| h2_task *task = h2_ctx_get_task(filter->c); |
| apr_status_t status; |
| |
| ap_assert(task); |
| status = slave_out(task, filter, brigade); |
| if (status != APR_SUCCESS) { |
| h2_task_rst(task, H2_ERR_INTERNAL_ERROR); |
| } |
| return status; |
| } |
| |
| static apr_status_t h2_filter_parse_h1(ap_filter_t* f, apr_bucket_brigade* bb) |
| { |
| h2_task *task = h2_ctx_get_task(f->c); |
| apr_status_t status; |
| |
| ap_assert(task); |
| /* There are cases where we need to parse a serialized http/1.1 |
| * response. One example is a 100-continue answer in serialized mode |
| * or via a mod_proxy setup */ |
| while (bb && !task->output.sent_response) { |
| status = h2_from_h1_parse_response(task, f, bb); |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE2, status, f->c, |
| "h2_task(%s): parsed response", task->id); |
| if (APR_BRIGADE_EMPTY(bb) || status != APR_SUCCESS) { |
| return status; |
| } |
| } |
| |
| return ap_pass_brigade(f->next, bb); |
| } |
| |
| /******************************************************************************* |
| * task things |
| ******************************************************************************/ |
| |
| int h2_task_can_redo(h2_task *task) { |
| if (task->input.beam && h2_beam_was_received(task->input.beam)) { |
| /* cannot repeat that. */ |
| return 0; |
| } |
| return (!strcmp("GET", task->request->method) |
| || !strcmp("HEAD", task->request->method) |
| || !strcmp("OPTIONS", task->request->method)); |
| } |
| |
| int h2_task_has_started(h2_task *task) |
| { |
| return task && task->started_at != 0; |
| } |
| |
| void h2_task_redo(h2_task *task) |
| { |
| task->started_at = 0; |
| task->worker_done = 0; |
| task->rst_error = 0; |
| } |
| |
| void h2_task_rst(h2_task *task, int error) |
| { |
| task->rst_error = error; |
| if (task->input.beam) { |
| h2_beam_leave(task->input.beam); |
| } |
| if (!task->worker_done) { |
| h2_beam_abort(task->output.beam); |
| } |
| if (task->c) { |
| task->c->aborted = 1; |
| } |
| } |
| |
| /******************************************************************************* |
| * Register various hooks |
| */ |
| static const char *const mod_ssl[] = { "mod_ssl.c", NULL}; |
| static int h2_task_pre_conn(conn_rec* c, void *arg); |
| static int h2_task_process_conn(conn_rec* c); |
| |
| APR_OPTIONAL_FN_TYPE(ap_logio_add_bytes_in) *h2_task_logio_add_bytes_in; |
| APR_OPTIONAL_FN_TYPE(ap_logio_add_bytes_out) *h2_task_logio_add_bytes_out; |
| |
| void h2_task_register_hooks(void) |
| { |
| /* This hook runs on new connections before mod_ssl has a say. |
| * Its purpose is to prevent mod_ssl from touching our pseudo-connections |
| * for streams. |
| */ |
| ap_hook_pre_connection(h2_task_pre_conn, |
| NULL, mod_ssl, APR_HOOK_FIRST); |
| /* When the connection processing actually starts, we might |
| * take over, if the connection is for a task. |
| */ |
| ap_hook_process_connection(h2_task_process_conn, |
| NULL, NULL, APR_HOOK_FIRST); |
| |
| ap_register_input_filter("H2_SLAVE_IN", h2_filter_slave_in, |
| NULL, AP_FTYPE_NETWORK); |
| ap_register_output_filter("H2_SLAVE_OUT", h2_filter_slave_output, |
| NULL, AP_FTYPE_NETWORK); |
| ap_register_output_filter("H2_PARSE_H1", h2_filter_parse_h1, |
| NULL, AP_FTYPE_NETWORK); |
| |
| ap_register_input_filter("H2_REQUEST", h2_filter_request_in, |
| NULL, AP_FTYPE_PROTOCOL); |
| ap_register_output_filter("H2_RESPONSE", h2_filter_headers_out, |
| NULL, AP_FTYPE_PROTOCOL); |
| ap_register_output_filter("H2_TRAILERS_OUT", h2_filter_trailers_out, |
| NULL, AP_FTYPE_PROTOCOL); |
| } |
| |
| /* post config init */ |
| apr_status_t h2_task_init(apr_pool_t *pool, server_rec *s) |
| { |
| h2_task_logio_add_bytes_in = APR_RETRIEVE_OPTIONAL_FN(ap_logio_add_bytes_in); |
| h2_task_logio_add_bytes_out = APR_RETRIEVE_OPTIONAL_FN(ap_logio_add_bytes_out); |
| |
| return APR_SUCCESS; |
| } |
| |
| static int h2_task_pre_conn(conn_rec* c, void *arg) |
| { |
| h2_ctx *ctx; |
| |
| if (!c->master) { |
| return OK; |
| } |
| |
| ctx = h2_ctx_get(c, 0); |
| (void)arg; |
| if (ctx->task) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE2, 0, c, |
| "h2_slave(%s), pre_connection, adding filters", c->log_id); |
| ap_add_input_filter("H2_SLAVE_IN", NULL, NULL, c); |
| ap_add_output_filter("H2_PARSE_H1", NULL, NULL, c); |
| ap_add_output_filter("H2_SLAVE_OUT", NULL, NULL, c); |
| } |
| return OK; |
| } |
| |
| h2_task *h2_task_create(conn_rec *slave, int stream_id, |
| const h2_request *req, h2_mplx *m, |
| h2_bucket_beam *input, |
| apr_interval_time_t timeout, |
| apr_size_t output_max_mem) |
| { |
| apr_pool_t *pool; |
| h2_task *task; |
| |
| ap_assert(slave); |
| ap_assert(req); |
| |
| apr_pool_create(&pool, slave->pool); |
| apr_pool_tag(pool, "h2_task"); |
| task = apr_pcalloc(pool, sizeof(h2_task)); |
| if (task == NULL) { |
| return NULL; |
| } |
| task->id = "000"; |
| task->stream_id = stream_id; |
| task->c = slave; |
| task->mplx = m; |
| task->pool = pool; |
| task->request = req; |
| task->timeout = timeout; |
| task->input.beam = input; |
| task->output.max_buffer = output_max_mem; |
| |
| return task; |
| } |
| |
| void h2_task_destroy(h2_task *task) |
| { |
| if (task->output.beam) { |
| h2_beam_log(task->output.beam, task->c, APLOG_TRACE2, "task_destroy"); |
| h2_beam_destroy(task->output.beam); |
| task->output.beam = NULL; |
| } |
| |
| if (task->eor) { |
| apr_bucket_destroy(task->eor); |
| } |
| if (task->pool) { |
| apr_pool_destroy(task->pool); |
| } |
| } |
| |
| apr_status_t h2_task_do(h2_task *task, apr_thread_t *thread, int worker_id) |
| { |
| conn_rec *c; |
| |
| ap_assert(task); |
| c = task->c; |
| task->worker_started = 1; |
| |
| if (c->master) { |
| /* Each conn_rec->id is supposed to be unique at a point in time. Since |
| * some modules (and maybe external code) uses this id as an identifier |
| * for the request_rec they handle, it needs to be unique for slave |
| * connections also. |
| * The connection id is generated by the MPM and most MPMs use the formula |
| * id := (child_num * max_threads) + thread_num |
| * which means that there is a maximum id of about |
| * idmax := max_child_count * max_threads |
| * If we assume 2024 child processes with 2048 threads max, we get |
| * idmax ~= 2024 * 2048 = 2 ** 22 |
| * On 32 bit systems, we have not much space left, but on 64 bit systems |
| * (and higher?) we can use the upper 32 bits without fear of collision. |
| * 32 bits is just what we need, since a connection can only handle so |
| * many streams. |
| */ |
| int slave_id, free_bits; |
| |
| task->id = apr_psprintf(task->pool, "%ld-%d", c->master->id, |
| task->stream_id); |
| if (sizeof(unsigned long) >= 8) { |
| free_bits = 32; |
| slave_id = task->stream_id; |
| } |
| else { |
| /* Assume we have a more limited number of threads/processes |
| * and h2 workers on a 32-bit system. Use the worker instead |
| * of the stream id. */ |
| free_bits = 8; |
| slave_id = worker_id; |
| } |
| task->c->id = (c->master->id << free_bits)^slave_id; |
| } |
| |
| h2_beam_create(&task->output.beam, c->pool, task->stream_id, "output", |
| H2_BEAM_OWNER_SEND, 0, task->timeout); |
| if (!task->output.beam) { |
| return APR_ENOMEM; |
| } |
| |
| h2_beam_buffer_size_set(task->output.beam, task->output.max_buffer); |
| h2_beam_send_from(task->output.beam, task->pool); |
| |
| h2_ctx_create_for(c, task); |
| apr_table_setn(c->notes, H2_TASK_ID_NOTE, task->id); |
| |
| h2_slave_run_pre_connection(c, ap_get_conn_socket(c)); |
| |
| task->input.bb = apr_brigade_create(task->pool, c->bucket_alloc); |
| if (task->request->serialize) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_task(%s): serialize request %s %s", |
| task->id, task->request->method, task->request->path); |
| apr_brigade_printf(task->input.bb, NULL, |
| NULL, "%s %s HTTP/1.1\r\n", |
| task->request->method, task->request->path); |
| apr_table_do(input_ser_header, task, task->request->headers, NULL); |
| apr_brigade_puts(task->input.bb, NULL, NULL, "\r\n"); |
| } |
| |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_task(%s): process connection", task->id); |
| |
| task->c->current_thread = thread; |
| ap_run_process_connection(c); |
| |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_task(%s): processing done", task->id); |
| return output_finish(task); |
| } |
| |
| static apr_status_t h2_task_process_request(h2_task *task, conn_rec *c) |
| { |
| const h2_request *req = task->request; |
| conn_state_t *cs = c->cs; |
| request_rec *r; |
| |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_task(%s): create request_rec", task->id); |
| r = h2_request_create_rec(req, c); |
| if (r && (r->status == HTTP_OK)) { |
| /* set timeouts for virtual host of request */ |
| if (task->timeout != r->server->timeout) { |
| task->timeout = r->server->timeout; |
| h2_beam_timeout_set(task->output.beam, task->timeout); |
| if (task->input.beam) { |
| h2_beam_timeout_set(task->input.beam, task->timeout); |
| } |
| } |
| |
| ap_update_child_status(c->sbh, SERVER_BUSY_WRITE, r); |
| |
| if (cs) { |
| cs->state = CONN_STATE_HANDLER; |
| } |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_task(%s): start process_request", task->id); |
| |
| /* Add the raw bytes of the request (e.g. header frame lengths to |
| * the logio for this request. */ |
| if (req->raw_bytes && h2_task_logio_add_bytes_in) { |
| h2_task_logio_add_bytes_in(c, req->raw_bytes); |
| } |
| |
| ap_process_request(r); |
| |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_task(%s): process_request done", task->id); |
| |
| /* After the call to ap_process_request, the |
| * request pool may have been deleted. We set |
| * r=NULL here to ensure that any dereference |
| * of r that might be added later in this function |
| * will result in a segfault immediately instead |
| * of nondeterministic failures later. |
| */ |
| if (cs) |
| cs->state = CONN_STATE_WRITE_COMPLETION; |
| r = NULL; |
| } |
| else if (!r) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_task(%s): create request_rec failed, r=NULL", task->id); |
| } |
| else { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_task(%s): create request_rec failed, r->status=%d", |
| task->id, r->status); |
| } |
| |
| return APR_SUCCESS; |
| } |
| |
| static int h2_task_process_conn(conn_rec* c) |
| { |
| h2_ctx *ctx; |
| |
| if (!c->master) { |
| return DECLINED; |
| } |
| |
| ctx = h2_ctx_get(c, 0); |
| if (ctx->task) { |
| if (!ctx->task->request->serialize) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_h2, processing request directly"); |
| h2_task_process_request(ctx->task, c); |
| return DONE; |
| } |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_task(%s), serialized handling", ctx->task->id); |
| } |
| else { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "slave_conn(%ld): has no task", c->id); |
| } |
| return DECLINED; |
| } |
| |
