84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/*-
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* Copyright (C) 2011 Romain Tartière
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* Copyright (C) 2011, 2012 Romuald Conty
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU Lesser 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 "log.h"
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#include <stdlib.h>
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#include <stdint.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <fcntl.h>
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#ifndef LOG
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// Leaving in a preprocessor error, as the build system should skip this
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// file otherwise.
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#error "No logging defined, but log-printf.c still compiled."
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#else // LOG
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void
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log_init(const nfc_context *context)
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{
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#ifdef ENVVARS
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char str[32];
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sprintf(str, "%"PRIu32, context->log_level);
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setenv("LIBNFC_LOG_LEVEL", str, 1);
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#else
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(void)context;
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#endif
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}
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void
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log_exit(void)
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{
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}
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void
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log_put(const uint8_t group, const char *category, const uint8_t priority, const char *format, ...)
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{
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char *env_log_level = NULL;
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#ifdef ENVVARS
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env_log_level = getenv("LIBNFC_LOG_LEVEL");
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#endif
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uint32_t log_level;
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if (NULL == env_log_level) {
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// LIBNFC_LOG_LEVEL is not set
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#ifdef DEBUG
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log_level = 3;
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#else
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log_level = 1;
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#endif
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} else {
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log_level = atoi(env_log_level);
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}
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// printf("log_level = %"PRIu32" group = %"PRIu8" priority = %"PRIu8"\n", log_level, group, priority);
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if (log_level) { // If log is not disabled by log_level=none
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if (((log_level & 0x00000003) >= priority) || // Global log level
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(((log_level >> (group * 2)) & 0x00000003) >= priority)) { // Group log level
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va_list va;
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va_start(va, format);
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fprintf(stderr, "%s\t%s\t", log_priority_to_str(priority), category);
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vfprintf(stderr, format, va);
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fprintf(stderr, "\n");
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va_end(va);
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}
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}
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}
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#endif // LOG
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