1 /**************************************************************************
3 * Copyright 2011 Jose Fonseca
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 **************************************************************************/
30 #include "trace_file.hpp"
33 using namespace trace;
37 File::createForRead(const char *filename)
39 std::ifstream stream(filename, std::ifstream::binary | std::ifstream::in);
40 if (!stream.is_open()) {
41 os::log("error: failed to open %s\n", filename);
44 unsigned char byte1, byte2;
50 if (byte1 == SNAPPY_BYTE1 && byte2 == SNAPPY_BYTE2) {
51 file = File::createSnappy();
52 } else if (byte1 == 0x1f && byte2 == 0x8b) {
53 file = File::createZLib();
55 os::log("error: %s: unkwnown compression\n", filename);
62 if (!file->open(filename, File::Read)) {
63 os::log("error: could not open %s for reading\n", filename);