Remove snappy (closes issue #402)

1 files changed, 0 insertions, 606 deletions

diff --git a/main/snappy/snappy-test.cc b/main/snappy/snappy-test.cc
deleted file mode 100644
index 46194109..00000000
--- a/main/snappy/snappy-test.cc
+++ /dev/null
@@ -1,606 +0,0 @@
-// Copyright 2011 Google Inc. All Rights Reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Various stubs for the unit tests for the open-source version of Snappy.
-
-#include "snappy-test.h"
-
-#ifdef HAVE_WINDOWS_H
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#endif
-
-#include <algorithm>
-
-DEFINE_bool(run_microbenchmarks, true,
-            "Run microbenchmarks before doing anything else.");
-
-namespace snappy {
-
-string ReadTestDataFile(const string& base, size_t size_limit) {
-  string contents;
-  const char* srcdir = getenv("srcdir");  // This is set by Automake.
-  string prefix;
-  if (srcdir) {
-    prefix = string(srcdir) + "/";
-  }
-  file::GetContents(prefix + "testdata/" + base, &contents, file::Defaults()
-      ).CheckSuccess();
-  if (size_limit > 0) {
-    contents = contents.substr(0, size_limit);
-  }
-  return contents;
-}
-
-string ReadTestDataFile(const string& base) {
-  return ReadTestDataFile(base, 0);
-}
-
-string StringPrintf(const char* format, ...) {
-  char buf[4096];
-  va_list ap;
-  va_start(ap, format);
-  vsnprintf(buf, sizeof(buf), format, ap);
-  va_end(ap);
-  return buf;
-}
-
-bool benchmark_running = false;
-int64 benchmark_real_time_us = 0;
-int64 benchmark_cpu_time_us = 0;
-string *benchmark_label = NULL;
-int64 benchmark_bytes_processed = 0;
-
-void ResetBenchmarkTiming() {
-  benchmark_real_time_us = 0;
-  benchmark_cpu_time_us = 0;
-}
-
-#ifdef WIN32
-LARGE_INTEGER benchmark_start_real;
-FILETIME benchmark_start_cpu;
-#else  // WIN32
-struct timeval benchmark_start_real;
-struct rusage benchmark_start_cpu;
-#endif  // WIN32
-
-void StartBenchmarkTiming() {
-#ifdef WIN32
-  QueryPerformanceCounter(&benchmark_start_real);
-  FILETIME dummy;
-  CHECK(GetProcessTimes(
-      GetCurrentProcess(), &dummy, &dummy, &dummy, &benchmark_start_cpu));
-#else
-  gettimeofday(&benchmark_start_real, NULL);
-  if (getrusage(RUSAGE_SELF, &benchmark_start_cpu) == -1) {
-    perror("getrusage(RUSAGE_SELF)");
-    exit(1);
-  }
-#endif
-  benchmark_running = true;
-}
-
-void StopBenchmarkTiming() {
-  if (!benchmark_running) {
-    return;
-  }
-
-#ifdef WIN32
-  LARGE_INTEGER benchmark_stop_real;
-  LARGE_INTEGER benchmark_frequency;
-  QueryPerformanceCounter(&benchmark_stop_real);
-  QueryPerformanceFrequency(&benchmark_frequency);
-
-  double elapsed_real = static_cast<double>(
-      benchmark_stop_real.QuadPart - benchmark_start_real.QuadPart) /
-      benchmark_frequency.QuadPart;
-  benchmark_real_time_us += elapsed_real * 1e6 + 0.5;
-
-  FILETIME benchmark_stop_cpu, dummy;
-  CHECK(GetProcessTimes(
-      GetCurrentProcess(), &dummy, &dummy, &dummy, &benchmark_stop_cpu));
-
-  ULARGE_INTEGER start_ulargeint;
-  start_ulargeint.LowPart = benchmark_start_cpu.dwLowDateTime;
-  start_ulargeint.HighPart = benchmark_start_cpu.dwHighDateTime;
-
-  ULARGE_INTEGER stop_ulargeint;
-  stop_ulargeint.LowPart = benchmark_stop_cpu.dwLowDateTime;
-  stop_ulargeint.HighPart = benchmark_stop_cpu.dwHighDateTime;
-
-  benchmark_cpu_time_us +=
-      (stop_ulargeint.QuadPart - start_ulargeint.QuadPart + 5) / 10;
-#else  // WIN32
-  struct timeval benchmark_stop_real;
-  gettimeofday(&benchmark_stop_real, NULL);
-  benchmark_real_time_us +=
-      1000000 * (benchmark_stop_real.tv_sec - benchmark_start_real.tv_sec);
-  benchmark_real_time_us +=
-      (benchmark_stop_real.tv_usec - benchmark_start_real.tv_usec);
-
-  struct rusage benchmark_stop_cpu;
-  if (getrusage(RUSAGE_SELF, &benchmark_stop_cpu) == -1) {
-    perror("getrusage(RUSAGE_SELF)");
-    exit(1);
-  }
-  benchmark_cpu_time_us += 1000000 * (benchmark_stop_cpu.ru_utime.tv_sec -
-                                      benchmark_start_cpu.ru_utime.tv_sec);
-  benchmark_cpu_time_us += (benchmark_stop_cpu.ru_utime.tv_usec -
-                            benchmark_start_cpu.ru_utime.tv_usec);
-#endif  // WIN32
-
-  benchmark_running = false;
-}
-
-void SetBenchmarkLabel(const string& str) {
-  if (benchmark_label) {
-    delete benchmark_label;
-  }
-  benchmark_label = new string(str);
-}
-
-void SetBenchmarkBytesProcessed(int64 bytes) {
-  benchmark_bytes_processed = bytes;
-}
-
-struct BenchmarkRun {
-  int64 real_time_us;
-  int64 cpu_time_us;
-};
-
-struct BenchmarkCompareCPUTime {
-  bool operator() (const BenchmarkRun& a, const BenchmarkRun& b) const {
-    return a.cpu_time_us < b.cpu_time_us;
-  }
-};
-
-void Benchmark::Run() {
-  for (int test_case_num = start_; test_case_num <= stop_; ++test_case_num) {
-    // Run a few iterations first to find out approximately how fast
-    // the benchmark is.
-    const int kCalibrateIterations = 100;
-    ResetBenchmarkTiming();
-    StartBenchmarkTiming();
-    (*function_)(kCalibrateIterations, test_case_num);
-    StopBenchmarkTiming();
-
-    // Let each test case run for about 200ms, but at least as many
-    // as we used to calibrate.
-    // Run five times and pick the median.
-    const int kNumRuns = 5;
-    const int kMedianPos = kNumRuns / 2;
-    int num_iterations = 0;
-    if (benchmark_real_time_us > 0) {
-      num_iterations = 200000 * kCalibrateIterations / benchmark_real_time_us;
-    }
-    num_iterations = max(num_iterations, kCalibrateIterations);
-    BenchmarkRun benchmark_runs[kNumRuns];
-
-    for (int run = 0; run < kNumRuns; ++run) {
-      ResetBenchmarkTiming();
-      StartBenchmarkTiming();
-      (*function_)(num_iterations, test_case_num);
-      StopBenchmarkTiming();
-
-      benchmark_runs[run].real_time_us = benchmark_real_time_us;
-      benchmark_runs[run].cpu_time_us = benchmark_cpu_time_us;
-    }
-
-    string heading = StringPrintf("%s/%d", name_.c_str(), test_case_num);
-    string human_readable_speed;
-
-    nth_element(benchmark_runs,
-                benchmark_runs + kMedianPos,
-                benchmark_runs + kNumRuns,
-                BenchmarkCompareCPUTime());
-    int64 real_time_us = benchmark_runs[kMedianPos].real_time_us;
-    int64 cpu_time_us = benchmark_runs[kMedianPos].cpu_time_us;
-    if (cpu_time_us <= 0) {
-      human_readable_speed = "?";
-    } else {
-      int64 bytes_per_second =
-          benchmark_bytes_processed * 1000000 / cpu_time_us;
-      if (bytes_per_second < 1024) {
-        human_readable_speed = StringPrintf("%dB/s", bytes_per_second);
-      } else if (bytes_per_second < 1024 * 1024) {
-        human_readable_speed = StringPrintf(
-            "%.1fkB/s", bytes_per_second / 1024.0f);
-      } else if (bytes_per_second < 1024 * 1024 * 1024) {
-        human_readable_speed = StringPrintf(
-            "%.1fMB/s", bytes_per_second / (1024.0f * 1024.0f));
-      } else {
-        human_readable_speed = StringPrintf(
-            "%.1fGB/s", bytes_per_second / (1024.0f * 1024.0f * 1024.0f));
-      }
-    }
-
-    fprintf(stderr,
-#ifdef WIN32
-            "%-18s %10I64d %10I64d %10d %s  %s\n",
-#else
-            "%-18s %10lld %10lld %10d %s  %s\n",
-#endif
-            heading.c_str(),
-            static_cast<long long>(real_time_us * 1000 / num_iterations),
-            static_cast<long long>(cpu_time_us * 1000 / num_iterations),
-            num_iterations,
-            human_readable_speed.c_str(),
-            benchmark_label->c_str());
-  }
-}
-
-#ifdef HAVE_LIBZ
-
-ZLib::ZLib()
-    : comp_init_(false),
-      uncomp_init_(false) {
-  Reinit();
-}
-
-ZLib::~ZLib() {
-  if (comp_init_)   { deflateEnd(&comp_stream_); }
-  if (uncomp_init_) { inflateEnd(&uncomp_stream_); }
-}
-
-void ZLib::Reinit() {
-  compression_level_ = Z_DEFAULT_COMPRESSION;
-  window_bits_ = MAX_WBITS;
-  mem_level_ =  8;  // DEF_MEM_LEVEL
-  if (comp_init_) {
-    deflateEnd(&comp_stream_);
-    comp_init_ = false;
-  }
-  if (uncomp_init_) {
-    inflateEnd(&uncomp_stream_);
-    uncomp_init_ = false;
-  }
-  first_chunk_ = true;
-}
-
-void ZLib::Reset() {
-  first_chunk_ = true;
-}
-
-// --------- COMPRESS MODE
-
-// Initialization method to be called if we hit an error while
-// compressing. On hitting an error, call this method before returning
-// the error.
-void ZLib::CompressErrorInit() {
-  deflateEnd(&comp_stream_);
-  comp_init_ = false;
-  Reset();
-}
-
-int ZLib::DeflateInit() {
-  return deflateInit2(&comp_stream_,
-                      compression_level_,
-                      Z_DEFLATED,
-                      window_bits_,
-                      mem_level_,
-                      Z_DEFAULT_STRATEGY);
-}
-
-int ZLib::CompressInit(Bytef *dest, uLongf *destLen,
-                       const Bytef *source, uLong *sourceLen) {
-  int err;
-
-  comp_stream_.next_in = (Bytef*)source;
-  comp_stream_.avail_in = (uInt)*sourceLen;
-  if ((uLong)comp_stream_.avail_in != *sourceLen) return Z_BUF_ERROR;
-  comp_stream_.next_out = dest;
-  comp_stream_.avail_out = (uInt)*destLen;
-  if ((uLong)comp_stream_.avail_out != *destLen) return Z_BUF_ERROR;
-
-  if ( !first_chunk_ )   // only need to set up stream the first time through
-    return Z_OK;
-
-  if (comp_init_) {      // we've already initted it
-    err = deflateReset(&comp_stream_);
-    if (err != Z_OK) {
-      LOG(WARNING) << "ERROR: Can't reset compress object; creating a new one";
-      deflateEnd(&comp_stream_);
-      comp_init_ = false;
-    }
-  }
-  if (!comp_init_) {     // first use
-    comp_stream_.zalloc = (alloc_func)0;
-    comp_stream_.zfree = (free_func)0;
-    comp_stream_.opaque = (voidpf)0;
-    err = DeflateInit();
-    if (err != Z_OK) return err;
-    comp_init_ = true;
-  }
-  return Z_OK;
-}
-
-// In a perfect world we'd always have the full buffer to compress
-// when the time came, and we could just call Compress().  Alas, we
-// want to do chunked compression on our webserver.  In this
-// application, we compress the header, send it off, then compress the
-// results, send them off, then compress the footer.  Thus we need to
-// use the chunked compression features of zlib.
-int ZLib::CompressAtMostOrAll(Bytef *dest, uLongf *destLen,
-                              const Bytef *source, uLong *sourceLen,
-                              int flush_mode) {   // Z_FULL_FLUSH or Z_FINISH
-  int err;
-
-  if ( (err=CompressInit(dest, destLen, source, sourceLen)) != Z_OK )
-    return err;
-
-  // This is used to figure out how many bytes we wrote *this chunk*
-  int compressed_size = comp_stream_.total_out;
-
-  // Some setup happens only for the first chunk we compress in a run
-  if ( first_chunk_ ) {
-    first_chunk_ = false;
-  }
-
-  // flush_mode is Z_FINISH for all mode, Z_SYNC_FLUSH for incremental
-  // compression.
-  err = deflate(&comp_stream_, flush_mode);
-
-  *sourceLen = comp_stream_.avail_in;
-
-  if ((err == Z_STREAM_END || err == Z_OK)
-      && comp_stream_.avail_in == 0
-      && comp_stream_.avail_out != 0 ) {
-    // we processed everything ok and the output buffer was large enough.
-    ;
-  } else if (err == Z_STREAM_END && comp_stream_.avail_in > 0) {
-    return Z_BUF_ERROR;                            // should never happen
-  } else if (err != Z_OK && err != Z_STREAM_END && err != Z_BUF_ERROR) {
-    // an error happened
-    CompressErrorInit();
-    return err;
-  } else if (comp_stream_.avail_out == 0) {     // not enough space
-    err = Z_BUF_ERROR;
-  }
-
-  assert(err == Z_OK || err == Z_STREAM_END || err == Z_BUF_ERROR);
-  if (err == Z_STREAM_END)
-    err = Z_OK;
-
-  // update the crc and other metadata
-  compressed_size = comp_stream_.total_out - compressed_size;  // delta
-  *destLen = compressed_size;
-
-  return err;
-}
-
-int ZLib::CompressChunkOrAll(Bytef *dest, uLongf *destLen,
-                             const Bytef *source, uLong sourceLen,
-                             int flush_mode) {   // Z_FULL_FLUSH or Z_FINISH
-  const int ret =
-    CompressAtMostOrAll(dest, destLen, source, &sourceLen, flush_mode);
-  if (ret == Z_BUF_ERROR)
-    CompressErrorInit();
-  return ret;
-}
-
-// This routine only initializes the compression stream once.  Thereafter, it
-// just does a deflateReset on the stream, which should be faster.
-int ZLib::Compress(Bytef *dest, uLongf *destLen,
-                   const Bytef *source, uLong sourceLen) {
-  int err;
-  if ( (err=CompressChunkOrAll(dest, destLen, source, sourceLen,
-                               Z_FINISH)) != Z_OK )
-    return err;
-  Reset();         // reset for next call to Compress
-
-  return Z_OK;
-}
-
-
-// --------- UNCOMPRESS MODE
-
-int ZLib::InflateInit() {
-  return inflateInit2(&uncomp_stream_, MAX_WBITS);
-}
-
-// Initialization method to be called if we hit an error while
-// uncompressing. On hitting an error, call this method before
-// returning the error.
-void ZLib::UncompressErrorInit() {
-  inflateEnd(&uncomp_stream_);
-  uncomp_init_ = false;
-  Reset();
-}
-
-int ZLib::UncompressInit(Bytef *dest, uLongf *destLen,
-                         const Bytef *source, uLong *sourceLen) {
-  int err;
-
-  uncomp_stream_.next_in = (Bytef*)source;
-  uncomp_stream_.avail_in = (uInt)*sourceLen;
-  // Check for source > 64K on 16-bit machine:
-  if ((uLong)uncomp_stream_.avail_in != *sourceLen) return Z_BUF_ERROR;
-
-  uncomp_stream_.next_out = dest;
-  uncomp_stream_.avail_out = (uInt)*destLen;
-  if ((uLong)uncomp_stream_.avail_out != *destLen) return Z_BUF_ERROR;
-
-  if ( !first_chunk_ )   // only need to set up stream the first time through
-    return Z_OK;
-
-  if (uncomp_init_) {    // we've already initted it
-    err = inflateReset(&uncomp_stream_);
-    if (err != Z_OK) {
-      LOG(WARNING)
-        << "ERROR: Can't reset uncompress object; creating a new one";
-      UncompressErrorInit();
-    }
-  }
-  if (!uncomp_init_) {
-    uncomp_stream_.zalloc = (alloc_func)0;
-    uncomp_stream_.zfree = (free_func)0;
-    uncomp_stream_.opaque = (voidpf)0;
-    err = InflateInit();
-    if (err != Z_OK) return err;
-    uncomp_init_ = true;
-  }
-  return Z_OK;
-}
-
-// If you compressed your data a chunk at a time, with CompressChunk,
-// you can uncompress it a chunk at a time with UncompressChunk.
-// Only difference bewteen chunked and unchunked uncompression
-// is the flush mode we use: Z_SYNC_FLUSH (chunked) or Z_FINISH (unchunked).
-int ZLib::UncompressAtMostOrAll(Bytef *dest, uLongf *destLen,
-                                const Bytef *source, uLong *sourceLen,
-                                int flush_mode) {  // Z_SYNC_FLUSH or Z_FINISH
-  int err = Z_OK;
-
-  if ( (err=UncompressInit(dest, destLen, source, sourceLen)) != Z_OK ) {
-    LOG(WARNING) << "UncompressInit: Error: " << err << " SourceLen: "
-                 << *sourceLen;
-    return err;
-  }
-
-  // This is used to figure out how many output bytes we wrote *this chunk*:
-  const uLong old_total_out = uncomp_stream_.total_out;
-
-  // This is used to figure out how many input bytes we read *this chunk*:
-  const uLong old_total_in = uncomp_stream_.total_in;
-
-  // Some setup happens only for the first chunk we compress in a run
-  if ( first_chunk_ ) {
-    first_chunk_ = false;                          // so we don't do this again
-
-    // For the first chunk *only* (to avoid infinite troubles), we let
-    // there be no actual data to uncompress.  This sometimes triggers
-    // when the input is only the gzip header, say.
-    if ( *sourceLen == 0 ) {
-      *destLen = 0;
-      return Z_OK;
-    }
-  }
-
-  // We'll uncompress as much as we can.  If we end OK great, otherwise
-  // if we get an error that seems to be the gzip footer, we store the
-  // gzip footer and return OK, otherwise we return the error.
-
-  // flush_mode is Z_SYNC_FLUSH for chunked mode, Z_FINISH for all mode.
-  err = inflate(&uncomp_stream_, flush_mode);
-
-  // Figure out how many bytes of the input zlib slurped up:
-  const uLong bytes_read = uncomp_stream_.total_in - old_total_in;
-  CHECK_LE(source + bytes_read, source + *sourceLen);
-  *sourceLen = uncomp_stream_.avail_in;
-
-  if ((err == Z_STREAM_END || err == Z_OK)  // everything went ok
-             && uncomp_stream_.avail_in == 0) {    // and we read it all
-    ;
-  } else if (err == Z_STREAM_END && uncomp_stream_.avail_in > 0) {
-    LOG(WARNING)
-      << "UncompressChunkOrAll: Received some extra data, bytes total: "
-      << uncomp_stream_.avail_in << " bytes: "
-      << string(reinterpret_cast<const char *>(uncomp_stream_.next_in),
-                min(int(uncomp_stream_.avail_in), 20));
-    UncompressErrorInit();
-    return Z_DATA_ERROR;       // what's the extra data for?
-  } else if (err != Z_OK && err != Z_STREAM_END && err != Z_BUF_ERROR) {
-    // an error happened
-    LOG(WARNING) << "UncompressChunkOrAll: Error: " << err
-                 << " avail_out: " << uncomp_stream_.avail_out;
-    UncompressErrorInit();
-    return err;
-  } else if (uncomp_stream_.avail_out == 0) {
-    err = Z_BUF_ERROR;
-  }
-
-  assert(err == Z_OK || err == Z_BUF_ERROR || err == Z_STREAM_END);
-  if (err == Z_STREAM_END)
-    err = Z_OK;
-
-  *destLen = uncomp_stream_.total_out - old_total_out;  // size for this call
-
-  return err;
-}
-
-int ZLib::UncompressChunkOrAll(Bytef *dest, uLongf *destLen,
-                               const Bytef *source, uLong sourceLen,
-                               int flush_mode) {  // Z_SYNC_FLUSH or Z_FINISH
-  const int ret =
-    UncompressAtMostOrAll(dest, destLen, source, &sourceLen, flush_mode);
-  if (ret == Z_BUF_ERROR)
-    UncompressErrorInit();
-  return ret;
-}
-
-int ZLib::UncompressAtMost(Bytef *dest, uLongf *destLen,
-                          const Bytef *source, uLong *sourceLen) {
-  return UncompressAtMostOrAll(dest, destLen, source, sourceLen, Z_SYNC_FLUSH);
-}
-
-// We make sure we've uncompressed everything, that is, the current
-// uncompress stream is at a compressed-buffer-EOF boundary.  In gzip
-// mode, we also check the gzip footer to make sure we pass the gzip
-// consistency checks.  We RETURN true iff both types of checks pass.
-bool ZLib::UncompressChunkDone() {
-  assert(!first_chunk_ && uncomp_init_);
-  // Make sure we're at the end-of-compressed-data point.  This means
-  // if we call inflate with Z_FINISH we won't consume any input or
-  // write any output
-  Bytef dummyin, dummyout;
-  uLongf dummylen = 0;
-  if ( UncompressChunkOrAll(&dummyout, &dummylen, &dummyin, 0, Z_FINISH)
-       != Z_OK ) {
-    return false;
-  }
-
-  // Make sure that when we exit, we can start a new round of chunks later
-  Reset();
-
-  return true;
-}
-
-// Uncompresses the source buffer into the destination buffer.
-// The destination buffer must be long enough to hold the entire
-// decompressed contents.
-//
-// We only initialize the uncomp_stream once.  Thereafter, we use
-// inflateReset, which should be faster.
-//
-// Returns Z_OK on success, otherwise, it returns a zlib error code.
-int ZLib::Uncompress(Bytef *dest, uLongf *destLen,
-                     const Bytef *source, uLong sourceLen) {
-  int err;
-  if ( (err=UncompressChunkOrAll(dest, destLen, source, sourceLen,
-                                 Z_FINISH)) != Z_OK ) {
-    Reset();                           // let us try to compress again
-    return err;
-  }
-  if ( !UncompressChunkDone() )        // calls Reset()
-    return Z_DATA_ERROR;
-  return Z_OK;  // stream_end is ok
-}
-
-#endif  // HAVE_LIBZ
-
-}  // namespace snappy