Android: add support for dynamically enable/disable tracing

[apitrace] / common / trace_file.cpp

diff --git a/common/trace_file.cpp b/common/trace_file.cpp
index f48c1aa9189c8b04c23a92448afc5b51ddd9d216..3657fd2943088012fa4c69abc790bb753a151f8e 100644 (file)
--- a/common/trace_file.cpp
+++ b/common/trace_file.cpp
@@ -26,18 +26,10 @@
 
 #include "trace_file.hpp"
 
-#include "trace_snappyfile.hpp"
-
 #include <assert.h>
-#include <string.h>
-
-#include <zlib.h>
 
-#include "os.hpp"
 
-#include <iostream>
-
-using namespace Trace;
+using namespace trace;
 
 
 File::File(const std::string &filename,
@@ -52,7 +44,8 @@ File::File(const std::string &filename,
 
 File::~File()
 {
-    close();
+    // We can't invoke any overriden virtual method here anymore
+    assert(!m_isOpened);
 }
 
 
@@ -61,120 +54,3 @@ void File::setCurrentOffset(const File::Offset &offset)
     assert(0);
 }
 
-bool File::isZLibCompressed(const std::string &filename)
-{
-    std::fstream stream(filename.c_str(),
-                        std::fstream::binary | std::fstream::in);
-    if (!stream.is_open())
-        return false;
-
-    unsigned char byte1, byte2;
-    stream >> byte1;
-    stream >> byte2;
-    stream.close();
-
-    return (byte1 == 0x1f && byte2 == 0x8b);
-}
-
-
-bool File::isSnappyCompressed(const std::string &filename)
-{
-    std::fstream stream(filename.c_str(),
-                        std::fstream::binary | std::fstream::in);
-    if (!stream.is_open())
-        return false;
-
-    unsigned char byte1, byte2;
-    stream >> byte1;
-    stream >> byte2;
-    stream.close();
-
-    return (byte1 == SNAPPY_BYTE1 && byte2 == SNAPPY_BYTE2);
-}
-
-typedef struct gz_stream {
-    z_stream stream;
-    int      z_err;   /* error code for last stream operation */
-    int      z_eof;   /* set if end of input file */
-    FILE     *file;   /* .gz file */
-} gz_dummy_stream;
-
-ZLibFile::ZLibFile(const std::string &filename,
-                   File::Mode mode)
-    : File(filename, mode),
-      m_gzFile(NULL)
-{
-}
-
-ZLibFile::~ZLibFile()
-{
-}
-
-bool ZLibFile::rawOpen(const std::string &filename, File::Mode mode)
-{
-    m_gzFile = gzopen(filename.c_str(),
-                      (mode == File::Write) ? "wb" : "rb");
-
-    if (mode == File::Read && m_gzFile) {
-        //XXX: unfortunately zlib doesn't support
-        //     SEEK_END or we could've done:
-        //m_endOffset = gzseek(m_gzFile, 0, SEEK_END);
-        //gzrewind(m_gzFile);
-        gz_dummy_stream *stream = (gz_dummy_stream *)m_gzFile;
-        long loc = ftell(stream->file);
-        fseek(stream->file,0,SEEK_END);
-        m_endOffset = ftell(stream->file);
-        fseek(stream->file, loc, SEEK_SET);
-    }
-
-    return m_gzFile != NULL;
-}
-
-bool ZLibFile::rawWrite(const void *buffer, size_t length)
-{
-    return gzwrite(m_gzFile, buffer, length) != -1;
-}
-
-bool ZLibFile::rawRead(void *buffer, size_t length)
-{
-    return gzread(m_gzFile, buffer, length) != -1;
-}
-
-int ZLibFile::rawGetc()
-{
-    return gzgetc(m_gzFile);
-}
-
-void ZLibFile::rawClose()
-{
-    if (m_gzFile) {
-        gzclose(m_gzFile);
-        m_gzFile = NULL;
-    }
-}
-
-void ZLibFile::rawFlush()
-{
-    gzflush(m_gzFile, Z_SYNC_FLUSH);
-}
-
-File::Offset ZLibFile::currentOffset()
-{
-    return File::Offset(gztell(m_gzFile));
-}
-
-bool ZLibFile::supportsOffsets() const
-{
-    return false;
-}
-
-bool ZLibFile::rawSkip(size_t)
-{
-    return false;
-}
-
-int ZLibFile::rawPercentRead()
-{
-    gz_dummy_stream *stream = (gz_dummy_stream *)m_gzFile;
-    return 100 * (ftell(stream->file) / m_endOffset);
-}