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Diffstat (limited to '')
-rw-r--r-- | js/xpconnect/src/XPCLog.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/js/xpconnect/src/XPCLog.cpp b/js/xpconnect/src/XPCLog.cpp new file mode 100644 index 0000000000..834ea2bc3c --- /dev/null +++ b/js/xpconnect/src/XPCLog.cpp @@ -0,0 +1,83 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* Debug Logging support. */ + +#include "XPCLog.h" +#include "mozilla/Logging.h" +#include "mozilla/Sprintf.h" +#include "mozilla/mozalloc.h" +#include <string.h> +#include <stdarg.h> + +// this all only works for DEBUG... +#ifdef DEBUG + +# define SPACE_COUNT 200 +# define LINE_LEN 200 +# define INDENT_FACTOR 2 + +# define CAN_RUN (g_InitState == 1 || (g_InitState == 0 && Init())) + +static char* g_Spaces; +static int g_InitState = 0; +static int g_Indent = 0; +static mozilla::LazyLogModule g_LogMod("xpclog"); + +static bool Init() { + g_Spaces = new char[SPACE_COUNT + 1]; + if (!g_Spaces || !MOZ_LOG_TEST(g_LogMod, LogLevel::Error)) { + g_InitState = 1; + XPC_Log_Finish(); + return false; + } + memset(g_Spaces, ' ', SPACE_COUNT); + g_Spaces[SPACE_COUNT] = 0; + g_InitState = 1; + return true; +} + +void XPC_Log_Finish() { + if (g_InitState == 1) { + delete[] g_Spaces; + } + g_InitState = -1; +} + +void XPC_Log_print(const char* fmt, ...) { + va_list ap; + char line[LINE_LEN]; + + va_start(ap, fmt); + VsprintfLiteral(line, fmt, ap); + va_end(ap); + if (g_Indent) { + PR_LogPrint("%s%s", g_Spaces + SPACE_COUNT - (INDENT_FACTOR * g_Indent), + line); + } else { + PR_LogPrint("%s", line); + } +} + +bool XPC_Log_Check(int i) { + return CAN_RUN && MOZ_LOG_TEST(g_LogMod, LogLevel::Error); +} + +void XPC_Log_Indent() { + if (INDENT_FACTOR * (++g_Indent) > SPACE_COUNT) { + g_Indent--; + } +} + +void XPC_Log_Outdent() { + if (--g_Indent < 0) { + g_Indent++; + } +} + +void XPC_Log_Clear_Indent() { g_Indent = 0; } + +#endif |