1 files changed, 243 insertions, 0 deletions
diff --git a/lldb/include/lldb/Core/Log.h b/lldb/include/lldb/Core/Log.h
new file mode 100644
index 00000000000..78017bb167e
--- /dev/null
+++ b/lldb/include/lldb/Core/Log.h
@@ -0,0 +1,243 @@
+//===-- Log.h ---------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_Log_h_
+#define liblldb_Log_h_
+
+// C Includes
+#include <stdbool.h>
+#include <stdint.h>
+#include <signal.h>
+#include <stdio.h>
+#include <sys/syslimits.h>
+#include <unistd.h>
+
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/Flags.h"
+#include "lldb/Core/PluginInterface.h"
+
+//----------------------------------------------------------------------
+// Logging types
+//----------------------------------------------------------------------
+#define LLDB_LOG_FLAG_STDOUT    (1u << 0)
+#define LLDB_LOG_FLAG_STDERR    (1u << 1)
+#define LLDB_LOG_FLAG_FATAL     (1u << 2)
+#define LLDB_LOG_FLAG_ERROR     (1u << 3)
+#define LLDB_LOG_FLAG_WARNING   (1u << 4)
+#define LLDB_LOG_FLAG_DEBUG     (1u << 5)
+#define LLDB_LOG_FLAG_VERBOSE   (1u << 6)
+
+//----------------------------------------------------------------------
+// Logging Options
+//----------------------------------------------------------------------
+#define LLDB_LOG_OPTION_THREADSAFE              (1u << 0)
+#define LLDB_LOG_OPTION_VERBOSE                 (1u << 1)
+#define LLDB_LOG_OPTION_DEBUG                   (1u << 2)
+#define LLDB_LOG_OPTION_PREPEND_SEQUENCE        (1u << 3)
+#define LLDB_LOG_OPTION_PREPEND_TIMESTAMP       (1u << 4)
+#define LLDB_LOG_OPTION_PREPEND_PROC_AND_THREAD (1u << 5)
+#define LLDB_LOG_OPTION_PREPEND_THREAD_NAME     (1U << 6)
+
+//----------------------------------------------------------------------
+// Logging Functions
+//----------------------------------------------------------------------
+namespace lldb_private {
+
+class Log
+{
+public:
+
+    //------------------------------------------------------------------
+    // Callback definitions for abstracted plug-in log access.
+    //------------------------------------------------------------------
+    typedef void (*DisableCallback) ();
+    typedef Log* (*EnableCallback) (lldb::StreamSP &log_stream_sp,
+                                    uint32_t log_options,
+                                    Args &args,
+                                    Stream *feedback_strm);
+    typedef void (*ListCategoriesCallback) (Stream *strm);
+
+    typedef struct Callbacks
+    {
+        DisableCallback disable;
+        EnableCallback enable;
+        ListCategoriesCallback list_categories;
+    };
+
+    //------------------------------------------------------------------
+    // Static accessors for logging channels
+    //------------------------------------------------------------------
+    static void
+    RegisterLogChannel (const char *channel,
+                        const Log::Callbacks &log_callbacks);
+
+    static bool
+    UnregisterLogChannel (const char *channel);
+
+    static bool
+    GetLogChannelCallbacks (const char *channel,
+                            Log::Callbacks &log_callbacks);
+
+
+    static void
+    EnableAllLogChannels (lldb::StreamSP &log_stream_sp,
+                          uint32_t log_options,
+                          Args &args,
+                          Stream *feedback_strm);
+
+    static void
+    DisableAllLogChannels ();
+
+    static void
+    ListAllLogChannels (Stream *strm);
+
+    //------------------------------------------------------------------
+    // Static accessors to STDOUT logging facilities.
+    //------------------------------------------------------------------
+    static void
+    STDOUT (const char *format, ...);
+
+    static lldb::StreamSP
+    GetStreamForSTDOUT ();
+
+    static void
+    SetStreamForSTDOUT (lldb::StreamSP &stream_sp);
+
+    //------------------------------------------------------------------
+    // Static accessors to STDERR logging facilities.
+    //------------------------------------------------------------------
+    static void
+    STDERR (const char *format, ...);
+
+    static lldb::StreamSP
+    GetStreamForSTDERR ();
+
+    static void
+    SetStreamForSTDERR (lldb::StreamSP &stream_sp);
+
+    //------------------------------------------------------------------
+    // Member functions
+    //------------------------------------------------------------------
+    Log ();
+
+    Log (lldb::StreamSP &stream_sp);
+
+    ~Log ();
+
+    void
+    PutCString (const char *cstr);
+
+    void
+    Printf (const char *format, ...);
+
+    void
+    VAPrintf (const char *format, va_list args);
+
+    void
+    PrintfWithFlags( uint32_t flags, const char *format, ...);
+
+    void
+    LogIf (uint32_t mask, const char *fmt, ...);
+
+    void
+    Debug (const char *fmt, ...);
+
+    void
+    DebugVerbose (const char *fmt, ...);
+
+    void
+    Error (const char *fmt, ...);
+
+    void
+    FatalError (int err, const char *fmt, ...);
+
+    void
+    Verbose (const char *fmt, ...);
+
+    void
+    Warning (const char *fmt, ...);
+
+    void
+    WarningVerbose (const char *fmt, ...);
+
+    Flags &
+    GetOptions();
+
+    const Flags &
+    GetOptions() const;
+
+    Flags &
+    GetMask();
+
+    const Flags &
+    GetMask() const;
+
+    bool
+    GetVerbose() const;
+
+    bool
+    GetDebug() const;
+
+protected:
+    //------------------------------------------------------------------
+    // Member variables
+    //------------------------------------------------------------------
+    lldb::StreamSP m_stream_sp;
+    Flags m_options;
+    Flags m_mask_bits;
+
+    void
+    PrintfWithFlagsVarArg (uint32_t flags, const char *format, va_list args);
+
+private:
+    DISALLOW_COPY_AND_ASSIGN (Log);
+};
+
+
+class LogChannel : public PluginInterface
+{
+public:
+    LogChannel ();
+
+    virtual
+    ~LogChannel ();
+
+    static const char *
+    GetPluginSuffix ();
+
+    static lldb::LogChannelSP
+    FindPlugin (const char *plugin_name);
+
+    virtual void
+    Disable () = 0;
+
+    virtual bool
+    Enable (lldb::StreamSP &log_stream_sp,
+            uint32_t log_options,
+            Stream *feedback_strm,      // Feedback stream for argument errors etc
+            const Args &categories) = 0;// The categories to enable within this logging stream, if empty, enable default set
+
+    virtual void
+    ListCategories (Stream *strm) = 0;
+
+protected:
+    lldb::LogSP m_log_sp;
+
+private:
+    DISALLOW_COPY_AND_ASSIGN (LogChannel);
+};
+
+
+} // namespace lldb_private
+
+#endif  // liblldb_Log_H_