tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

XPCLog.cpp (1891B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 /* Debug Logging support. */
      8 
      9 #include "XPCLog.h"
     10 #include "mozilla/Logging.h"
     11 #include "mozilla/Sprintf.h"
     12 #include "mozilla/mozalloc.h"
     13 #include "prlog.h"
     14 #include <string.h>
     15 #include <stdarg.h>
     16 
     17 // this all only works for DEBUG...
     18 #ifdef DEBUG
     19 
     20 #  define SPACE_COUNT 200
     21 #  define LINE_LEN 200
     22 #  define INDENT_FACTOR 2
     23 
     24 #  define CAN_RUN (g_InitState == 1 || (g_InitState == 0 && Init()))
     25 
     26 static char* g_Spaces;
     27 static int g_InitState = 0;
     28 static int g_Indent = 0;
     29 static mozilla::LazyLogModule g_LogMod("xpclog");
     30 
     31 static bool Init() {
     32  g_Spaces = new char[SPACE_COUNT + 1];
     33  if (!g_Spaces || !MOZ_LOG_TEST(g_LogMod, mozilla::LogLevel::Error)) {
     34    g_InitState = 1;
     35    XPC_Log_Finish();
     36    return false;
     37  }
     38  memset(g_Spaces, ' ', SPACE_COUNT);
     39  g_Spaces[SPACE_COUNT] = 0;
     40  g_InitState = 1;
     41  return true;
     42 }
     43 
     44 void XPC_Log_Finish() {
     45  if (g_InitState == 1) {
     46    delete[] g_Spaces;
     47  }
     48  g_InitState = -1;
     49 }
     50 
     51 void XPC_Log_print(const char* fmt, ...) {
     52  va_list ap;
     53  char line[LINE_LEN];
     54 
     55  va_start(ap, fmt);
     56  VsprintfLiteral(line, fmt, ap);
     57  va_end(ap);
     58  if (g_Indent) {
     59    PR_LogPrint("%s%s", g_Spaces + SPACE_COUNT - (INDENT_FACTOR * g_Indent),
     60                line);
     61  } else {
     62    PR_LogPrint("%s", line);
     63  }
     64 }
     65 
     66 bool XPC_Log_Check(int i) {
     67  return CAN_RUN && MOZ_LOG_TEST(g_LogMod, mozilla::LogLevel::Error);
     68 }
     69 
     70 void XPC_Log_Indent() {
     71  if (INDENT_FACTOR * (++g_Indent) > SPACE_COUNT) {
     72    g_Indent--;
     73  }
     74 }
     75 
     76 void XPC_Log_Outdent() {
     77  if (--g_Indent < 0) {
     78    g_Indent++;
     79  }
     80 }
     81 
     82 void XPC_Log_Clear_Indent() { g_Indent = 0; }
     83 
     84 #endif