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 <sys/utsname.h>
#include <libxml/encoding.h>
#include <libxml/globals.h>
#include <libxml/xmlversion.h>
#include "utils/config.h"
#include "content/fetch.h"
#include "content/fetchcache.h"
#include "content/urldb.h"
#include "desktop/netsurf.h"
#include "desktop/browser.h"
#include "desktop/gui.h"
#include "utils/log.h"
#include "utils/url.h"
#include "utils/utf8.h"
#include "utils/utils.h"
bool netsurf_quit = false;
bool netsurf_embedded = true;
bool verbose_log = false;
static void netsurf_poll(void);
static void lib_init(void);
/**
* The regular main(), when not embedded
*/
int main(int argc, char** argv)
{
setbuf(stderr, NULL);
netsurf_embedded = false;
return netsurf_main(argc, argv);
}
/**
* Gui NetSurf main().
*/
int netsurf_main(int argc, char** argv)
{
netsurf_init(argc, argv);
netsurf_main_loop();
netsurf_exit();
return EXIT_SUCCESS;
}
/**
* Gui NetSurf main loop.
*/
int netsurf_main_loop(void)
{
while (!netsurf_quit)
netsurf_poll();
return 0;
}
/**
* Initialise components used by gui NetSurf.
*/
void netsurf_init(int argc, char** argv)
{
struct utsname utsname;
/* 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);
#if !((defined(__SVR4) && defined(__sun)) || defined(__NetBSD__) || \
defined(__OpenBSD__))
stdout = stderr;
#endif
if ((argc > 1) && (argv[1][0] == '-') && (argv[1][1] == 'v') && (argv[1][2] == 0)) {
int argcmv;
verbose_log = true;
for (argcmv = 2; argcmv < argc; argcmv++) {
argv[argcmv - 1] = argv[argcmv];
}
argc--;
}
#ifdef _MEMDEBUG_H_
memdebug_memdebug("memdump");
#endif
LOG(("version '%s'", netsurf_version));
if (uname(&utsname) < 0)
LOG(("Failed to extract machine information"));
else
LOG(("NetSurf on <%s>, node <%s>, release <%s>, version <%s>, "
"machine <%s>", utsname.sysname,
utsname.nodename, utsname.release,
utsname.version, utsname.machine));
lib_init();
url_init();
gui_init(argc, argv);
setlocale(LC_ALL, "C");
fetch_init();
fetchcache_init();
gui_init2(argc, argv);
}
/**
* Poll components which require it.
*/
void netsurf_poll(void)
{
static unsigned int last_clean = 0;
unsigned int current_time = wallclock();
/* avoid calling content_clean() more often than once every 5
* seconds.
*/
if (last_clean + 500 < current_time) {
last_clean = current_time;
content_clean();
}
gui_poll(fetch_active);
fetch_poll();
}
/**
* Clean up components used by gui NetSurf.
*/
void netsurf_exit(void)
{
LOG(("Closing GUI"));
gui_quit();
LOG(("Closing content"));
content_quit();
LOG(("Closing fetches"));
fetch_quit();
LOG(("Closing utf8"));
utf8_finalise();
LOG(("Destroying URLdb"));
urldb_destroy();
LOG(("Exited successfully"));
}
/**
* Initialises the libraries used in NetSurf.
*/
void lib_init(void)
{
LOG(("xmlParserVersion %s, LIBXML_VERSION_STRING %s",
xmlParserVersion, LIBXML_VERSION_STRING));
/* Using encoding "X-SJIS" (unknown to libxmp2/iconv) instead as
* "Shift-JIS" is rather popular.
*/
if (xmlAddEncodingAlias(xmlGetCharEncodingName(
XML_CHAR_ENCODING_SHIFT_JIS), "X-SJIS") != 0)
die("Failed to add encoding alias");
}