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/*-
 * Public Domain 2014-2016 MongoDB, Inc.
 * Public Domain 2008-2014 WiredTiger, Inc.
 *
 * This is free and unencumbered software released into the public domain.
 *
 * Anyone is free to copy, modify, publish, use, compile, sell, or
 * distribute this software, either in source code form or as a compiled
 * binary, for any purpose, commercial or non-commercial, and by any
 * means.
 *
 * In jurisdictions that recognize copyright laws, the author or authors
 * of this software dedicate any and all copyright interest in the
 * software to the public domain. We make this dedication for the benefit
 * of the public at large and to the detriment of our heirs and
 * successors. We intend this dedication to be an overt act of
 * relinquishment in perpetuity of all present and future rights to this
 * software under copyright law.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#include "wtperf.h"

/* Setup the logging output mechanism. */
int
setup_log_file(CONFIG *cfg)
{
	int ret;
	char *fname;

	ret = 0;

	if (cfg->verbose < 1)
		return (0);

	fname = dcalloc(strlen(cfg->monitor_dir) +
	    strlen(cfg->table_name) + strlen(".stat") + 2, 1);

	sprintf(fname, "%s/%s.stat", cfg->monitor_dir, cfg->table_name);
	cfg->logf = fopen(fname, "w");
	if (cfg->logf == NULL) {
		ret = errno;
		fprintf(stderr, "%s: %s\n", fname, strerror(ret));
	}
	free(fname);
	if (cfg->logf == NULL)
		return (ret);

	/* Use line buffering for the log file. */
	__wt_stream_set_line_buffer(cfg->logf);
	return (0);
}

/*
 * Log printf - output a log message.
 */
void
lprintf(const CONFIG *cfg, int err, uint32_t level, const char *fmt, ...)
{
	va_list ap;

	if (err == 0 && level <= cfg->verbose) {
		va_start(ap, fmt);
		vfprintf(cfg->logf, fmt, ap);
		va_end(ap);
		fprintf(cfg->logf, "\n");

		if (level < cfg->verbose) {
			va_start(ap, fmt);
			vprintf(fmt, ap);
			va_end(ap);
			printf("\n");
		}
	}
	if (err == 0)
		return;

	/* We are dealing with an error. */
	va_start(ap, fmt);
	vfprintf(stderr, fmt, ap);
	va_end(ap);
	fprintf(stderr, " Error: %s\n", wiredtiger_strerror(err));
	if (cfg->logf != NULL) {
		va_start(ap, fmt);
		vfprintf(cfg->logf, fmt, ap);
		va_end(ap);
		fprintf(cfg->logf, " Error: %s\n", wiredtiger_strerror(err));
	}

	/* Never attempt to continue if we got a panic from WiredTiger. */
	if (err == WT_PANIC)
		abort();
}