1 files changed, 90 insertions, 0 deletions
diff --git a/src/core/lib/gpr/log_posix.cc b/src/core/lib/gpr/log_posix.cc
new file mode 100644
index 0000000000..6f93cdefcd
--- /dev/null
+++ b/src/core/lib/gpr/log_posix.cc
@@ -0,0 +1,90 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <grpc/support/port_platform.h>
+
+#ifdef GPR_POSIX_LOG
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/string_util.h>
+#include <grpc/support/time.h>
+#include <pthread.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+static intptr_t gettid(void) { return (intptr_t)pthread_self(); }
+
+void gpr_log(const char* file, int line, gpr_log_severity severity,
+             const char* format, ...) {
+  char buf[64];
+  char* allocated = nullptr;
+  char* message = nullptr;
+  int ret;
+  va_list args;
+  va_start(args, format);
+  ret = vsnprintf(buf, sizeof(buf), format, args);
+  va_end(args);
+  if (ret < 0) {
+    message = nullptr;
+  } else if ((size_t)ret <= sizeof(buf) - 1) {
+    message = buf;
+  } else {
+    message = allocated = (char*)gpr_malloc((size_t)ret + 1);
+    va_start(args, format);
+    vsnprintf(message, (size_t)(ret + 1), format, args);
+    va_end(args);
+  }
+  gpr_log_message(file, line, severity, message);
+  gpr_free(allocated);
+}
+
+void gpr_default_log(gpr_log_func_args* args) {
+  const 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 == nullptr)
+    display_file = args->file;
+  else
+    display_file = final_slash + 1;
+
+  if (!localtime_r(&timer, &tm)) {
+    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");
+  }
+
+  char* prefix;
+  gpr_asprintf(&prefix, "%s%s.%09d %7tu %s:%d]",
+               gpr_log_severity_string(args->severity), time_buffer,
+               (int)(now.tv_nsec), gettid(), display_file, args->line);
+
+  fprintf(stderr, "%-70s %s\n", prefix, args->message);
+  gpr_free(prefix);
+}
+
+#endif /* defined(GPR_POSIX_LOG) */