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netsurf/desktop/netsurf.c

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