1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/xpconnect/src/XPCLog.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,98 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* vim: set ts=8 sts=4 et sw=4 tw=99: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +/* Debug Logging support. */
1.11 +
1.12 +#include "XPCLog.h"
1.13 +#include "prlog.h"
1.14 +#include "prprf.h"
1.15 +#include "mozilla/mozalloc.h"
1.16 +#include "mozilla/NullPtr.h"
1.17 +#include <string.h>
1.18 +#include <stdarg.h>
1.19 +
1.20 +// this all only works for DEBUG...
1.21 +#ifdef DEBUG
1.22 +
1.23 +#define SPACE_COUNT 200
1.24 +#define LINE_LEN 200
1.25 +#define INDENT_FACTOR 2
1.26 +
1.27 +#define CAN_RUN (g_InitState == 1 || (g_InitState == 0 && Init()))
1.28 +
1.29 +static char* g_Spaces;
1.30 +static int g_InitState = 0;
1.31 +static int g_Indent = 0;
1.32 +static PRLogModuleInfo* g_LogMod = nullptr;
1.33 +
1.34 +static bool Init()
1.35 +{
1.36 + g_LogMod = PR_NewLogModule("xpclog");
1.37 + g_Spaces = new char[SPACE_COUNT+1];
1.38 + if (!g_LogMod || !g_Spaces || !PR_LOG_TEST(g_LogMod,1)) {
1.39 + g_InitState = 1;
1.40 + XPC_Log_Finish();
1.41 + return false;
1.42 + }
1.43 + memset(g_Spaces, ' ', SPACE_COUNT);
1.44 + g_Spaces[SPACE_COUNT] = 0;
1.45 + g_InitState = 1;
1.46 + return true;
1.47 +}
1.48 +
1.49 +void
1.50 +XPC_Log_Finish()
1.51 +{
1.52 + if (g_InitState == 1) {
1.53 + delete [] g_Spaces;
1.54 + // we'd like to properly cleanup the LogModule, but nspr owns that
1.55 + g_LogMod = nullptr;
1.56 + }
1.57 + g_InitState = -1;
1.58 +}
1.59 +
1.60 +void
1.61 +XPC_Log_print(const char *fmt, ...)
1.62 +{
1.63 + va_list ap;
1.64 + char line[LINE_LEN];
1.65 +
1.66 + va_start(ap, fmt);
1.67 + PR_vsnprintf(line, sizeof(line)-1, fmt, ap);
1.68 + va_end(ap);
1.69 + if (g_Indent)
1.70 + PR_LogPrint("%s%s",g_Spaces+SPACE_COUNT-(INDENT_FACTOR*g_Indent),line);
1.71 + else
1.72 + PR_LogPrint("%s",line);
1.73 +}
1.74 +
1.75 +bool
1.76 +XPC_Log_Check(int i)
1.77 +{
1.78 + return CAN_RUN && PR_LOG_TEST(g_LogMod,1);
1.79 +}
1.80 +
1.81 +void
1.82 +XPC_Log_Indent()
1.83 +{
1.84 + if (INDENT_FACTOR*(++g_Indent) > SPACE_COUNT)
1.85 + g_Indent-- ;
1.86 +}
1.87 +
1.88 +void
1.89 +XPC_Log_Outdent()
1.90 +{
1.91 + if (--g_Indent < 0)
1.92 + g_Indent++;
1.93 +}
1.94 +
1.95 +void
1.96 +XPC_Log_Clear_Indent()
1.97 +{
1.98 + g_Indent = 0;
1.99 +}
1.100 +
1.101 +#endif
