--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ucx/logging.c Wed Dec 09 11:32:01 2020 +0100
@@ -0,0 +1,117 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "ucx/logging.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <time.h>
+
+UcxLogger *ucx_logger_new(void *stream, unsigned int level, unsigned int mask) {
+ UcxLogger *logger = (UcxLogger*) malloc(sizeof(UcxLogger));
+ if (logger != NULL) {
+ logger->stream = stream;
+ logger->writer = (write_func)fwrite;
+ logger->dateformat = (char*) "%F %T %z ";
+ logger->level = level;
+ logger->mask = mask;
+ logger->levels = ucx_map_new(8);
+
+ unsigned int l;
+ l = UCX_LOGGER_ERROR;
+ ucx_map_int_put(logger->levels, l, (void*) "[ERROR]");
+ l = UCX_LOGGER_WARN;
+ ucx_map_int_put(logger->levels, l, (void*) "[WARNING]");
+ l = UCX_LOGGER_INFO;
+ ucx_map_int_put(logger->levels, l, (void*) "[INFO]");
+ l = UCX_LOGGER_DEBUG;
+ ucx_map_int_put(logger->levels, l, (void*) "[DEBUG]");
+ l = UCX_LOGGER_TRACE;
+ ucx_map_int_put(logger->levels, l, (void*) "[TRACE]");
+ }
+
+ return logger;
+}
+
+void ucx_logger_free(UcxLogger *logger) {
+ ucx_map_free(logger->levels);
+ free(logger);
+}
+
+// estimated max. message length (documented)
+#define UCX_LOGGER_MSGMAX 4096
+
+void ucx_logger_logf(UcxLogger *logger, unsigned int level, const char* file,
+ const unsigned int line, const char *format, ...) {
+ if (level <= logger->level) {
+ char msg[UCX_LOGGER_MSGMAX];
+ const char *text;
+ size_t k = 0;
+ size_t n;
+
+ if ((logger->mask & UCX_LOGGER_LEVEL) > 0) {
+ text = (const char*) ucx_map_int_get(logger->levels, level);
+ if (!text) {
+ text = "[UNKNOWN]";
+ }
+ n = strlen(text);
+ n = n > 256 ? 256 : n;
+ memcpy(msg+k, text, n);
+ k += n;
+ msg[k++] = ' ';
+ }
+ if ((logger->mask & UCX_LOGGER_TIMESTAMP) > 0) {
+ time_t now = time(NULL);
+ k += strftime(msg+k, 128, logger->dateformat, localtime(&now));
+ }
+ if ((logger->mask & UCX_LOGGER_SOURCE) > 0) {
+ char *fpart = strrchr(file, '/');
+ if (fpart) file = fpart+1;
+ fpart = strrchr(file, '\\');
+ if (fpart) file = fpart+1;
+ n = strlen(file);
+ memcpy(msg+k, file, n);
+ k += n;
+ k += sprintf(msg+k, ":%u ", line);
+ }
+
+ if (k > 0) {
+ msg[k++] = '-'; msg[k++] = ' ';
+ }
+
+ va_list args;
+ va_start (args, format);
+ k += vsnprintf(msg+k, UCX_LOGGER_MSGMAX-k-1, format, args);
+ va_end (args);
+
+ msg[k++] = '\n';
+
+ logger->writer(msg, 1, k, logger->stream);
+ }
+}