service_runtime/nacl_log.h

   1 /*
   2  * Copyright 2008, Google Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met:
   8  *
   9  *     * Redistributions of source code must retain the above copyright
  10  * notice, this list of conditions and the following disclaimer.
  11  *     * Redistributions in binary form must reproduce the above
  12  * copyright notice, this list of conditions and the following disclaimer
  13  * in the documentation and/or other materials provided with the
  14  * distribution.
  15  *     * Neither the name of Google Inc. nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * NaCl Server Runtime logging code.
  34  */
  35
  36 #ifndef SERVICE_RUNTIME_NACL_LOG_H__
  37 #define SERVICE_RUNTIME_NACL_LOG_H__  1
  38
  39 #include <stdarg.h>
  40
  41 #include "native_client/service_runtime/gio.h"
  42
  43 #ifdef __cplusplus
  44 extern "C" {
  45 #endif
  46
  47 /*
  48  * TODO: per-module logging, adding a module-name parameter, probably
  49  * an atom that is statically allocated.
  50  */
  51 void    NaClLogModuleInit(void);
  52
  53 void    NaClLogModuleFini(void);
  54
  55 void  NaClLogSetVerbosity(int verb);
  56
  57 int   NaClLogGetVerbosity(void);
  58
  59 void  NaClLogIncrVerbosity(void);
  60
  61 void  NaClLogSetGio(struct Gio *out_stream);
  62
  63 struct Gio *NaClLogGetGio(void);
  64
  65 /*
  66  * Timestamps on log entries may be disabled, e.g., to make it easier to
  67  * write test that compare logging output.
  68  */
  69
  70 void  NaClLogEnableTimestamp(void);
  71
  72 void  NaClLogDisableTimestamp(void);
  73
  74 void NaClLogV(int     detail_level,
  75               char    *fmt,
  76               va_list ap);
  77
  78 void  NaClLog(int   detail_level,
  79               char  *fmt,
  80               ...)
  81 #if !NACL_WINDOWS
  82     __attribute__((format(printf, 2, 3)))
  83 #endif
  84 ;
  85
  86 #define LOG_INFO    (-1)
  87 #define LOG_WARNING (-2)
  88 #define LOG_ERROR   (-3)
  89 #define LOG_FATAL   (-4)
  90
  91 #ifdef __cplusplus
  92 }  /* end of extern "C" */
  93 #endif
  94
  95 #endif