mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-21 03:32:35 +03:00
4d1ef3bac4
This is an attempt to amelioriate the situation found in #2384 where we see the cURL connect() failing to complete. Based on the pcap from the bug log, we believe that RISC OS is likely failing to signal the completion of the connection to cURL. As such, cURL times out. This change permits retries of timed out connections in the hope that a fresh socket FD might subsequently function correctly. The defaults chosen mean that the previous behaviour of 30 seconds before timeout is reported will remain the same, but in that time we will make 3 separate attempts to connect the socket.
284 lines
7.9 KiB
C
284 lines
7.9 KiB
C
/*
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* Copyright 2003 Phil Mellor <monkeyson@users.sourceforge.net>
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* Copyright 2007 James Bursa <bursa@users.sourceforge.net>
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* Copyright 2004 Andrew Timmins <atimmins@blueyonder.co.uk>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <locale.h>
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#include <signal.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <libwapcaplet/libwapcaplet.h>
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#include "utils/config.h"
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#include "utils/nsoption.h"
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#include "utils/corestrings.h"
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#include "utils/log.h"
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#include "utils/utf8.h"
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#include "utils/utils.h"
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#include "utils/messages.h"
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#include "content/content_factory.h"
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#include "content/fetchers.h"
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#include "content/hlcache.h"
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#include "content/mimesniff.h"
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#include "content/urldb.h"
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#include "css/css.h"
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#include "image/image.h"
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#include "image/image_cache.h"
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#include "javascript/js.h"
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#include "render/html.h"
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#include "render/textplain.h"
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#include "desktop/browser.h"
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#include "desktop/system_colour.h"
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#include "desktop/searchweb.h"
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#include "desktop/gui_misc.h"
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#include "desktop/gui_internal.h"
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#include "desktop/netsurf.h"
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/** speculative pre-conversion small image size
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*
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* Experimenting by visiting every page from default page in order and
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* then netsurf homepage
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*
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* 0 : Cache hit/miss/speculative miss/fail 604/147/ 0/0 (80%/19%/ 0%/ 0%)
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* 2048 : Cache hit/miss/speculative miss/fail 622/119/ 17/0 (82%/15%/ 2%/ 0%)
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* 4096 : Cache hit/miss/speculative miss/fail 656/109/ 25/0 (83%/13%/ 3%/ 0%)
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* 8192 : Cache hit/miss/speculative miss/fail 648/104/ 40/0 (81%/13%/ 5%/ 0%)
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* ALL : Cache hit/miss/speculative miss/fail 775/ 0/161/0 (82%/ 0%/17%/ 0%)
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*/
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#define SPECULATE_SMALL 4096
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/** the time between image cache clean runs in ms. */
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#define IMAGE_CACHE_CLEAN_TIME (10 * 1000)
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/** default time between content cache cleans. */
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#define HL_CACHE_CLEAN_TIME (2 * IMAGE_CACHE_CLEAN_TIME)
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/** ensure there is a minimal amount of memory for source objetcs and
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* decoded bitmaps.
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*/
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#define MINIMUM_MEMORY_CACHE_SIZE (2 * 1024 * 1024)
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/** default minimum object time before object is pushed to backing store. (s) */
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#define LLCACHE_STORE_MIN_LIFETIME (60 * 30)
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/** default minimum bandwidth for backing store writeout. (byte/s) */
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#define LLCACHE_STORE_MIN_BANDWIDTH (128 * 1024)
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/** default maximum bandwidth for backing store writeout. (byte/s) */
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#define LLCACHE_STORE_MAX_BANDWIDTH (1024 * 1024)
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/** default time quantum with which to calculate bandwidth (ms) */
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#define LLCACHE_STORE_TIME_QUANTUM (100)
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static void netsurf_lwc_iterator(lwc_string *str, void *pw)
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{
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LOG("[%3u] %.*s", str->refcnt, (int)lwc_string_length(str), lwc_string_data(str));
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}
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/**
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* Dispatch a low-level cache query to the frontend
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*
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* \param query Query descriptor
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* \param pw Private data
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* \param cb Continuation callback
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* \param cbpw Private data for continuation
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* \return NSERROR_OK
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*/
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static nserror netsurf_llcache_query_handler(const llcache_query *query,
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void *pw, llcache_query_response cb, void *cbpw)
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{
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switch (query->type) {
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case LLCACHE_QUERY_AUTH:
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guit->browser->login(query->url, query->data.auth.realm, cb, cbpw);
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break;
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case LLCACHE_QUERY_REDIRECT:
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/** \todo Need redirect query dialog */
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/* For now, do nothing, as this query type isn't emitted yet */
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break;
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case LLCACHE_QUERY_SSL:
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guit->browser->cert_verify(query->url, query->data.ssl.certs,
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query->data.ssl.num, cb, cbpw);
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break;
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}
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return NSERROR_OK;
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}
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/* exported interface documented in desktop/netsurf.h */
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nserror netsurf_init(const char *store_path)
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{
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nserror ret;
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struct hlcache_parameters hlcache_parameters = {
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.bg_clean_time = HL_CACHE_CLEAN_TIME,
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.llcache = {
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.cb = netsurf_llcache_query_handler,
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.minimum_lifetime = LLCACHE_STORE_MIN_LIFETIME,
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.minimum_bandwidth = LLCACHE_STORE_MIN_BANDWIDTH,
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.maximum_bandwidth = LLCACHE_STORE_MAX_BANDWIDTH,
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.time_quantum = LLCACHE_STORE_TIME_QUANTUM,
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}
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};
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struct image_cache_parameters image_cache_parameters = {
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.bg_clean_time = IMAGE_CACHE_CLEAN_TIME,
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.speculative_small = SPECULATE_SMALL
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};
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#ifdef HAVE_SIGPIPE
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/* Ignore SIGPIPE - this is necessary as OpenSSL can generate these
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* and the default action is to terminate the app. There's no easy
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* way of determining the cause of the SIGPIPE (other than using
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* sigaction() and some mechanism for getting the file descriptor
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* out of libcurl). However, we expect nothing else to generate a
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* SIGPIPE, anyway, so may as well just ignore them all.
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*/
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signal(SIGPIPE, SIG_IGN);
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#endif
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/* corestrings init */
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ret = corestrings_init();
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if (ret != NSERROR_OK)
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return ret;
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/* set up cache limits based on the memory cache size option */
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hlcache_parameters.llcache.limit = nsoption_int(memory_cache_size);
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if (hlcache_parameters.llcache.limit < MINIMUM_MEMORY_CACHE_SIZE) {
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hlcache_parameters.llcache.limit = MINIMUM_MEMORY_CACHE_SIZE;
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LOG("Setting minimum memory cache size %zd", hlcache_parameters.llcache.limit);
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}
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/* Set up the max attempts made to fetch a timing out resource */
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hlcache_parameters.llcache.fetch_attempts = nsoption_uint(max_retried_fetches);
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/* image cache is 25% of total memory cache size */
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image_cache_parameters.limit = (hlcache_parameters.llcache.limit * 25) / 100;
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/* image cache hysteresis is 20% of the image cache size */
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image_cache_parameters.hysteresis = (image_cache_parameters.limit * 20) / 100;
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/* account for image cache use from total */
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hlcache_parameters.llcache.limit -= image_cache_parameters.limit;
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/* set backing store target limit */
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hlcache_parameters.llcache.store.limit = nsoption_uint(disc_cache_size);
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/* set backing store hysterissi to 20% */
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hlcache_parameters.llcache.store.hysteresis = (hlcache_parameters.llcache.store.limit * 20) / 100;;
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/* set the path to the backing store */
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hlcache_parameters.llcache.store.path = store_path;
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/* image handler bitmap cache */
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ret = image_cache_init(&image_cache_parameters);
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if (ret != NSERROR_OK)
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return ret;
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/* content handler initialisation */
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ret = nscss_init();
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if (ret != NSERROR_OK)
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return ret;
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ret = html_init();
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if (ret != NSERROR_OK)
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return ret;
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ret = image_init();
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if (ret != NSERROR_OK)
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return ret;
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ret = textplain_init();
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if (ret != NSERROR_OK)
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return ret;
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ret = mimesniff_init();
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if (ret != NSERROR_OK)
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return ret;
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setlocale(LC_ALL, "C");
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/* initialise the fetchers */
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ret = fetcher_init();
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if (ret != NSERROR_OK)
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return ret;
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/* Initialise the hlcache and allow it to init the llcache for us */
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ret = hlcache_initialise(&hlcache_parameters);
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if (ret != NSERROR_OK)
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return ret;
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/* Initialize system colours */
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ret = ns_system_colour_init();
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if (ret != NSERROR_OK)
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return ret;
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js_initialise();
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return NSERROR_OK;
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}
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/**
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* Clean up components used by gui NetSurf.
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*/
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void netsurf_exit(void)
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{
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hlcache_stop();
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LOG("Closing GUI");
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guit->browser->quit();
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LOG("Finalising JavaScript");
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js_finalise();
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LOG("Finalising Web Search");
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search_web_finalise();
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LOG("Finalising high-level cache");
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hlcache_finalise();
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LOG("Closing fetches");
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fetcher_quit();
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mimesniff_fini();
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/* dump any remaining cache entries */
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image_cache_fini();
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/* Clean up after content handlers */
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content_factory_fini();
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LOG("Closing utf8");
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utf8_finalise();
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LOG("Destroying URLdb");
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urldb_destroy();
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LOG("Destroying System colours");
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ns_system_colour_finalize();
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corestrings_fini();
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LOG("Remaining lwc strings:");
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lwc_iterate_strings(netsurf_lwc_iterator, NULL);
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LOG("Exited successfully");
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}
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