/*
 *
 * Copyright 2014, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * 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
 * OWNER 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 <grpc/support/port_platform.h>

#ifdef GPR_WIN32

#include <grpc/support/log.h>
#include <grpc/support/alloc.h>
#include <stdio.h>
#include <stdarg.h>

void gpr_log(const char *file, int line, gpr_log_severity severity,
             const char *format, ...) {
  char *message = NULL;
  va_list args;
  int ret;

  /* Determine the length. */
  va_start(args, format);
  ret = _vscprintf(format, args);
  va_end(args);
  if (!(0 <= ret && ret < ~(size_t)0)) {
    message = NULL;
  } else {
    /* Allocate a new buffer, with space for the NUL terminator. */
    size_t strp_buflen = (size_t)ret + 1;
    message = gpr_malloc(strp_buflen);

    /* Print to the buffer. */
    va_start(args, format);
    ret = vsnprintf_s(message, strp_buflen, _TRUNCATE, format, args);
    va_end(args);
    if (ret != strp_buflen - 1) {
      /* This should never happen. */
      gpr_free(message);
      message = NULL;
    }
  }

  gpr_log_message(file, line, severity, message);
  gpr_free(message);
}

/* Simple starter implementation */
void gpr_default_log(gpr_log_func_args *args) {
  fprintf(stderr, "%s %s:%d: %s\n", gpr_log_severity_string(args->severity),
          args->file, args->line, args->message);
}

#endif