Remove Gonk build directories

1 files changed, 0 insertions, 324 deletions

diff --git a/hal/gonk/GonkDiskSpaceWatcher.cpp b/hal/gonk/GonkDiskSpaceWatcher.cpp
deleted file mode 100644
index cdc48ef89..000000000
--- a/hal/gonk/GonkDiskSpaceWatcher.cpp
+++ /dev/null
@@ -1,324 +0,0 @@
-/* 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/. */
-
-#include "Hal.h"
-#include <sys/syscall.h>
-#include <sys/vfs.h>
-#include <fcntl.h>
-#include <errno.h>
-#include "base/message_loop.h"
-#include "base/task.h"
-#include "DiskSpaceWatcher.h"
-#include "fanotify.h"
-#include "nsIObserverService.h"
-#include "nsIDiskSpaceWatcher.h"
-#include "nsThreadUtils.h"
-#include "nsXULAppAPI.h"
-#include "mozilla/ModuleUtils.h"
-#include "mozilla/Preferences.h"
-#include "mozilla/Services.h"
-
-using namespace mozilla;
-
-namespace mozilla { namespace hal_impl { class GonkDiskSpaceWatcher; } }
-
-using namespace mozilla::hal_impl;
-
-namespace mozilla {
-namespace hal_impl {
-
-// NOTE: this should be unnecessary once we no longer support ICS.
-#ifndef __NR_fanotify_init
-#if defined(__ARM_EABI__)
-#define __NR_fanotify_init 367
-#define __NR_fanotify_mark 368
-#elif defined(__i386__)
-#define __NR_fanotify_init 338
-#define __NR_fanotify_mark 339
-#else
-#error "Unhandled architecture"
-#endif
-#endif
-
-// fanotify_init and fanotify_mark functions are syscalls.
-// The user space bits are not part of bionic so we add them here
-// as well as fanotify.h
-int fanotify_init (unsigned int flags, unsigned int event_f_flags)
-{
-  return syscall(__NR_fanotify_init, flags, event_f_flags);
-}
-
-// Add, remove, or modify an fanotify mark on a filesystem object.
-int fanotify_mark (int fanotify_fd, unsigned int flags,
-                   uint64_t mask, int dfd, const char *pathname)
-{
-
-  // On 32 bits platforms we have to convert the 64 bits mask into
-  // two 32 bits ints.
-  if (sizeof(void *) == 4) {
-    union {
-      uint64_t _64;
-      uint32_t _32[2];
-    } _mask;
-    _mask._64 = mask;
-    return syscall(__NR_fanotify_mark, fanotify_fd, flags,
-		   _mask._32[0], _mask._32[1], dfd, pathname);
-  }
-
-  return syscall(__NR_fanotify_mark, fanotify_fd, flags, mask, dfd, pathname);
-}
-
-class GonkDiskSpaceWatcher final : public MessageLoopForIO::Watcher
-{
-public:
-  GonkDiskSpaceWatcher();
-  ~GonkDiskSpaceWatcher() {};
-
-  virtual void OnFileCanReadWithoutBlocking(int aFd);
-
-  // We should never write to the fanotify fd.
-  virtual void OnFileCanWriteWithoutBlocking(int aFd)
-  {
-    MOZ_CRASH("Must not write to fanotify fd");
-  }
-
-  void DoStart();
-  void DoStop();
-
-private:
-  void NotifyUpdate();
-
-  uint64_t mLowThreshold;
-  uint64_t mHighThreshold;
-  TimeDuration mTimeout;
-  TimeStamp  mLastTimestamp;
-  uint64_t mLastFreeSpace;
-  uint32_t mSizeDelta;
-
-  bool mIsDiskFull;
-  uint64_t mFreeSpace;
-
-  int mFd;
-  MessageLoopForIO::FileDescriptorWatcher mReadWatcher;
-};
-
-static GonkDiskSpaceWatcher* gHalDiskSpaceWatcher = nullptr;
-
-#define WATCHER_PREF_LOW        "disk_space_watcher.low_threshold"
-#define WATCHER_PREF_HIGH       "disk_space_watcher.high_threshold"
-#define WATCHER_PREF_TIMEOUT    "disk_space_watcher.timeout"
-#define WATCHER_PREF_SIZE_DELTA "disk_space_watcher.size_delta"
-
-static const char kWatchedPath[] = "/data";
-
-// Helper class to dispatch calls to xpcom on the main thread.
-class DiskSpaceNotifier : public Runnable
-{
-public:
-  DiskSpaceNotifier(const bool aIsDiskFull, const uint64_t aFreeSpace) :
-    mIsDiskFull(aIsDiskFull),
-    mFreeSpace(aFreeSpace) {}
-
-  NS_IMETHOD Run() override
-  {
-    MOZ_ASSERT(NS_IsMainThread());
-    DiskSpaceWatcher::UpdateState(mIsDiskFull, mFreeSpace);
-    return NS_OK;
-  }
-
-private:
-  bool mIsDiskFull;
-  uint64_t mFreeSpace;
-};
-
-// Helper runnable to delete the watcher on the main thread.
-class DiskSpaceCleaner : public Runnable
-{
-public:
-  NS_IMETHOD Run() override
-  {
-    MOZ_ASSERT(NS_IsMainThread());
-    if (gHalDiskSpaceWatcher) {
-      delete gHalDiskSpaceWatcher;
-      gHalDiskSpaceWatcher = nullptr;
-    }
-    return NS_OK;
-  }
-};
-
-GonkDiskSpaceWatcher::GonkDiskSpaceWatcher() :
-  mLastFreeSpace(UINT64_MAX),
-  mIsDiskFull(false),
-  mFreeSpace(UINT64_MAX),
-  mFd(-1)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(gHalDiskSpaceWatcher == nullptr);
-
-  // Default values: 5MB for low threshold, 10MB for high threshold, and
-  // a timeout of 5 seconds.
-  mLowThreshold = Preferences::GetInt(WATCHER_PREF_LOW, 5) * 1024 * 1024;
-  mHighThreshold = Preferences::GetInt(WATCHER_PREF_HIGH, 10) * 1024 * 1024;
-  mTimeout = TimeDuration::FromSeconds(Preferences::GetInt(WATCHER_PREF_TIMEOUT, 5));
-  mSizeDelta = Preferences::GetInt(WATCHER_PREF_SIZE_DELTA, 1) * 1024 * 1024;
-}
-
-void
-GonkDiskSpaceWatcher::DoStart()
-{
-  NS_ASSERTION(XRE_GetIOMessageLoop() == MessageLoopForIO::current(),
-               "Not on the correct message loop");
-
-  mFd = fanotify_init(FAN_CLASS_NOTIF, FAN_CLOEXEC | O_LARGEFILE);
-  if (mFd == -1) {
-    if (errno == ENOSYS) {
-      // Don't change these printf_stderr since we need these logs even
-      // in opt builds.
-      printf_stderr("Warning: No fanotify support in this device's kernel.\n");
-#if ANDROID_VERSION >= 19
-      MOZ_CRASH("Fanotify support must be enabled in the kernel.");
-#endif
-    } else {
-      printf_stderr("Error calling fanotify_init()");
-    }
-    return;
-  }
-
-  if (fanotify_mark(mFd, FAN_MARK_ADD | FAN_MARK_MOUNT, FAN_CLOSE,
-                    0, kWatchedPath) < 0) {
-    NS_WARNING("Error calling fanotify_mark");
-    close(mFd);
-    mFd = -1;
-    return;
-  }
-
-  if (!MessageLoopForIO::current()->WatchFileDescriptor(
-    mFd, /* persistent = */ true,
-    MessageLoopForIO::WATCH_READ,
-    &mReadWatcher, gHalDiskSpaceWatcher)) {
-      NS_WARNING("Unable to watch fanotify fd.");
-      close(mFd);
-      mFd = -1;
-  }
-}
-
-void
-GonkDiskSpaceWatcher::DoStop()
-{
-  NS_ASSERTION(XRE_GetIOMessageLoop() == MessageLoopForIO::current(),
-               "Not on the correct message loop");
-
-  if (mFd != -1) {
-    mReadWatcher.StopWatchingFileDescriptor();
-    fanotify_mark(mFd, FAN_MARK_FLUSH, 0, 0, kWatchedPath);
-    close(mFd);
-    mFd = -1;
-  }
-
-  // Dispatch the cleanup to the main thread.
-  nsCOMPtr<nsIRunnable> runnable = new DiskSpaceCleaner();
-  NS_DispatchToMainThread(runnable);
-}
-
-// We are called off the main thread, so we proxy first to the main thread
-// before calling the xpcom object.
-void
-GonkDiskSpaceWatcher::NotifyUpdate()
-{
-  mLastTimestamp = TimeStamp::Now();
-  mLastFreeSpace = mFreeSpace;
-
-  nsCOMPtr<nsIRunnable> runnable =
-    new DiskSpaceNotifier(mIsDiskFull, mFreeSpace);
-  NS_DispatchToMainThread(runnable);
-}
-
-void
-GonkDiskSpaceWatcher::OnFileCanReadWithoutBlocking(int aFd)
-{
-  struct fanotify_event_metadata* fem = nullptr;
-  char buf[4096];
-  struct statfs sfs;
-  int32_t len, rc;
-
-  do {
-    len = read(aFd, buf, sizeof(buf));
-  } while(len == -1 && errno == EINTR);
-
-  // Bail out if the file is busy.
-  if (len < 0 && errno == ETXTBSY) {
-    return;
-  }
-
-  // We should get an exact multiple of fanotify_event_metadata
-  if (len <= 0 || (len % FAN_EVENT_METADATA_LEN != 0)) {
-    MOZ_CRASH("About to crash: fanotify_event_metadata read error.");
-  }
-
-  fem = reinterpret_cast<fanotify_event_metadata *>(buf);
-
-  while (FAN_EVENT_OK(fem, len)) {
-    rc = fstatfs(fem->fd, &sfs);
-    if (rc < 0) {
-      NS_WARNING("Unable to stat fan_notify fd");
-    } else {
-      bool firstRun = mFreeSpace == UINT64_MAX;
-      mFreeSpace = sfs.f_bavail * sfs.f_bsize;
-      // We change from full <-> free depending on the free space and the
-      // low and high thresholds.
-      // Once we are in 'full' mode we send updates for all size changes with
-      // a minimum of time between messages or when we cross a size change
-      // threshold.
-      if (firstRun) {
-        mIsDiskFull = mFreeSpace <= mLowThreshold;
-        // Always notify the current state at first run.
-        NotifyUpdate();
-      } else if (!mIsDiskFull && (mFreeSpace <= mLowThreshold)) {
-        mIsDiskFull = true;
-        NotifyUpdate();
-      } else if (mIsDiskFull && (mFreeSpace > mHighThreshold)) {
-        mIsDiskFull = false;
-        NotifyUpdate();
-      } else if (mIsDiskFull) {
-        if (mTimeout < TimeStamp::Now() - mLastTimestamp ||
-            mSizeDelta < llabs(mFreeSpace - mLastFreeSpace)) {
-          NotifyUpdate();
-        }
-      }
-    }
-    close(fem->fd);
-    fem = FAN_EVENT_NEXT(fem, len);
-  }
-}
-
-void
-StartDiskSpaceWatcher()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  // Bail out if called several times.
-  if (gHalDiskSpaceWatcher != nullptr) {
-    return;
-  }
-
-  gHalDiskSpaceWatcher = new GonkDiskSpaceWatcher();
-
-  XRE_GetIOMessageLoop()->PostTask(
-    NewNonOwningRunnableMethod(gHalDiskSpaceWatcher, &GonkDiskSpaceWatcher::DoStart));
-}
-
-void
-StopDiskSpaceWatcher()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  if (!gHalDiskSpaceWatcher) {
-    return;
-  }
-
-  XRE_GetIOMessageLoop()->PostTask(
-    NewNonOwningRunnableMethod(gHalDiskSpaceWatcher, &GonkDiskSpaceWatcher::DoStop));
-}
-
-} // namespace hal_impl
-} // namespace mozilla