1 files changed, 112 insertions, 0 deletions
diff --git a/src/core/lib/support/log_windows.c b/src/core/lib/support/log_windows.c
new file mode 100644
index 0000000000..ea898c359d
--- /dev/null
+++ b/src/core/lib/support/log_windows.c
@@ -0,0 +1,112 @@
+/*
+ *
+ * Copyright 2015, 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_WINDOWS_LOG
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/log_windows.h>
+#include <grpc/support/string_util.h>
+#include <grpc/support/time.h>
+
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/support/string_windows.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 (ret < 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 ((size_t)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) {
+  char *final_slash;
+  const char *display_file;
+  char time_buffer[64];
+  time_t timer;
+  gpr_timespec now = gpr_now(GPR_CLOCK_REALTIME);
+  struct tm tm;
+
+  timer = (time_t)now.tv_sec;
+  final_slash = strrchr(args->file, '\\');
+  if (final_slash == NULL)
+    display_file = args->file;
+  else
+    display_file = final_slash + 1;
+
+  if (localtime_s(&tm, &timer)) {
+    strcpy(time_buffer, "error:localtime");
+  } else if (0 ==
+             strftime(time_buffer, sizeof(time_buffer), "%m%d %H:%M:%S", &tm)) {
+    strcpy(time_buffer, "error:strftime");
+  }
+
+  fprintf(stderr, "%s%s.%09u %5lu %s:%d] %s\n",
+          gpr_log_severity_string(args->severity), time_buffer,
+          (int)(now.tv_nsec), GetCurrentThreadId(), display_file, args->line,
+          args->message);
+  fflush(stderr);
+}
+
+#endif /* GPR_WINDOWS_LOG */