mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-11-30 18:23:08 +03:00
125 lines
3.0 KiB
C
125 lines
3.0 KiB
C
/*
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* Copyright 2007 Rob Kendrick <rjek@netsurf-browser.org>
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* Copyright 2004-2007 James Bursa <bursa@users.sourceforge.net>
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* Copyright 2003 Phil Mellor <monkeyson@users.sourceforge.net>
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* Copyright 2003 John M Bell <jmb202@ecs.soton.ac.uk>
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* Copyright 2004 John Tytgat <joty@netsurf-browser.org>
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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 <stdarg.h>
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#include <stdio.h>
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#include <sys/time.h>
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#include "desktop/netsurf.h"
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#include "utils/log.h"
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nserror nslog_init(nslog_ensure_t *ensure, int *pargc, char **argv)
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{
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nserror ret = NSERROR_OK;
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if (((*pargc) > 1) &&
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(argv[1][0] == '-') &&
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(argv[1][1] == 'v') &&
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(argv[1][2] == 0)) {
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int argcmv;
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for (argcmv = 2; argcmv < (*pargc); argcmv++) {
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argv[argcmv - 1] = argv[argcmv];
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}
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(*pargc)--;
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/* ensure we actually show logging */
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verbose_log = true;
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/* ensure stderr is available */
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if (ensure != NULL) {
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if (ensure(stderr) == false) {
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/* failed to ensure output */
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ret = NSERROR_INIT_FAILED;
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}
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}
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}
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return ret;
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}
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#ifndef NDEBUG
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/* Subtract the `struct timeval' values X and Y,
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storing the result in RESULT.
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Return 1 if the difference is negative, otherwise 0.
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*/
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static int
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timeval_subtract(struct timeval *result, struct timeval *x, struct timeval *y)
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{
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/* Perform the carry for the later subtraction by updating y. */
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if (x->tv_usec < y->tv_usec) {
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int nsec = (y->tv_usec - x->tv_usec) / 1000000 + 1;
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y->tv_usec -= 1000000 * nsec;
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y->tv_sec += nsec;
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}
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if (x->tv_usec - y->tv_usec > 1000000) {
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int nsec = (x->tv_usec - y->tv_usec) / 1000000;
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y->tv_usec += 1000000 * nsec;
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y->tv_sec -= nsec;
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}
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/* Compute the time remaining to wait.
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tv_usec is certainly positive. */
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result->tv_sec = x->tv_sec - y->tv_sec;
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result->tv_usec = x->tv_usec - y->tv_usec;
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/* Return 1 if result is negative. */
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return x->tv_sec < y->tv_sec;
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}
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const char *nslog_gettime(void)
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{
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static struct timeval start_tv;
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static char buff[32];
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struct timeval tv;
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struct timeval now_tv;
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if (!timerisset(&start_tv)) {
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gettimeofday(&start_tv, NULL);
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}
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gettimeofday(&now_tv, NULL);
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timeval_subtract(&tv, &now_tv, &start_tv);
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snprintf(buff, sizeof(buff),"(%ld.%ld)",
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(long)tv.tv_sec, (long)tv.tv_usec);
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return buff;
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}
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void nslog_log(const char *format, ...)
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{
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if (verbose_log) {
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va_list ap;
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va_start(ap, format);
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vfprintf(stderr, format, ap);
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va_end(ap);
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}
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}
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#endif
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