102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/*****************************************************************************
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* asa: portable digital subtitle renderer
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*****************************************************************************
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* Copyright (C) 2007 David Lamparter
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*
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* This program 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; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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****************************************************************************/
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#ifdef HAVE_CONFIG_H
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#include "acconf.h"
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include "visibility.h"
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#include "subhelp.h"
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#include <csri/logging.h>
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static void *appdata = NULL;
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static csri_logging_func *logfunc = NULL;
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void setlogcallback(csri_logging_func *_logfunc, void *_appdata) hidden;
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void setlogcallback(csri_logging_func *_logfunc, void *_appdata)
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{
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logfunc = _logfunc;
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appdata = _appdata;
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}
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static struct csri_logging_ext logext = {
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setlogcallback
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};
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void subhelp_logging_pass(struct csri_logging_ext *nlogext)
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{
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if (!nlogext || !nlogext->set_logcallback)
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return;
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nlogext->set_logcallback(logfunc, appdata);
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}
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void *subhelp_query_ext_logging(csri_ext_id extname)
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{
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if (strcmp(extname, CSRI_EXT_LOGGING))
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return NULL;
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return &logext;
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}
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void subhelp_log(enum csri_logging_severity severity, const char *msg, ...)
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{
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va_list args;
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va_start(args, msg);
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subhelp_vlog(severity, msg, args);
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va_end(args);
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}
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void subhelp_vlog(enum csri_logging_severity severity,
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const char *msg, va_list args)
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{
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char *buffer;
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const char *final;
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size_t size = 256;
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int n;
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buffer = (char *)malloc(256);
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while (buffer) {
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n = vsnprintf(buffer, size, msg, args);
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if (n >= 0 && (unsigned)n < size)
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break;
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size = n > 0 ? (unsigned)n + 1 : size * 2;
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buffer = (char *)realloc(buffer, size);
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}
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final = buffer ? buffer : "<out of memory in logging function>";
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subhelp_slog(severity, final);
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if (buffer)
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free(buffer);
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}
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void subhelp_slog(enum csri_logging_severity severity, const char *msg)
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{
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if (logfunc)
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logfunc(appdata, severity, msg);
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else {
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fprintf(stderr, msg);
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fprintf(stderr, "\n");
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}
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}
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