1 files changed, 0 insertions, 465 deletions
diff --git a/libs/utils/Pipe.cpp b/libs/utils/Pipe.cpp
deleted file mode 100644
index 613906b..0000000
--- a/libs/utils/Pipe.cpp
+++ /dev/null
@@ -1,465 +0,0 @@
-/*
- * Copyright (C) 2005 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//
-// Unidirectional pipe.
-//
-
-#include <utils/Pipe.h>
-#include <utils/Log.h>
-
-#if defined(HAVE_WIN32_IPC)
-# include <windows.h>
-#else
-# include <fcntl.h>
-# include <unistd.h>
-# include <errno.h>
-#endif
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <assert.h>
-#include <string.h>
-
-using namespace android;
-
-const unsigned long kInvalidHandle = (unsigned long) -1;
-
-
-/*
- * Constructor.  Do little.
- */
-Pipe::Pipe(void)
-    : mReadNonBlocking(false), mReadHandle(kInvalidHandle),
-      mWriteHandle(kInvalidHandle)
-{
-}
-
-/*
- * Destructor.  Use the system-appropriate close call.
- */
-Pipe::~Pipe(void)
-{
-#if defined(HAVE_WIN32_IPC)
-    if (mReadHandle != kInvalidHandle) {
-        if (!CloseHandle((HANDLE)mReadHandle))
-            LOG(LOG_WARN, "pipe", "failed closing read handle (%ld)\n",
-                mReadHandle);
-    }
-    if (mWriteHandle != kInvalidHandle) {
-        FlushFileBuffers((HANDLE)mWriteHandle);
-        if (!CloseHandle((HANDLE)mWriteHandle))
-            LOG(LOG_WARN, "pipe", "failed closing write handle (%ld)\n",
-                mWriteHandle);
-    }
-#else
-    if (mReadHandle != kInvalidHandle) {
-        if (close((int) mReadHandle) != 0)
-            LOG(LOG_WARN, "pipe", "failed closing read fd (%d)\n",
-                (int) mReadHandle);
-    }
-    if (mWriteHandle != kInvalidHandle) {
-        if (close((int) mWriteHandle) != 0)
-            LOG(LOG_WARN, "pipe", "failed closing write fd (%d)\n",
-                (int) mWriteHandle);
-    }
-#endif
-}
-
-/*
- * Create the pipe.
- *
- * Use the POSIX stuff for everything but Windows.
- */
-bool Pipe::create(void)
-{
-    assert(mReadHandle == kInvalidHandle);
-    assert(mWriteHandle == kInvalidHandle);
-
-#if defined(HAVE_WIN32_IPC)
-    /* we use this across processes, so they need to be inheritable */
-    HANDLE handles[2];
-    SECURITY_ATTRIBUTES saAttr;
-
-    saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
-    saAttr.bInheritHandle = TRUE;
-    saAttr.lpSecurityDescriptor = NULL;
-
-    if (!CreatePipe(&handles[0], &handles[1], &saAttr, 0)) {
-        LOG(LOG_ERROR, "pipe", "unable to create pipe\n");
-        return false;
-    }
-    mReadHandle = (unsigned long) handles[0];
-    mWriteHandle = (unsigned long) handles[1];
-    return true;
-#else
-    int fds[2];
-
-    if (pipe(fds) != 0) {
-        LOG(LOG_ERROR, "pipe", "unable to create pipe\n");
-        return false;
-    }
-    mReadHandle = fds[0];
-    mWriteHandle = fds[1];
-    return true;
-#endif
-}
-
-/*
- * Create a "half pipe".  Please, no Segway riding.
- */
-bool Pipe::createReader(unsigned long handle)
-{
-    mReadHandle = handle;
-    assert(mWriteHandle == kInvalidHandle);
-    return true;
-}
-
-/*
- * Create a "half pipe" for writing.
- */
-bool Pipe::createWriter(unsigned long handle)
-{
-    mWriteHandle = handle;
-    assert(mReadHandle == kInvalidHandle);
-    return true;
-}
-
-/*
- * Return "true" if create() has been called successfully.
- */
-bool Pipe::isCreated(void)
-{
-    // one or the other should be open
-    return (mReadHandle != kInvalidHandle || mWriteHandle != kInvalidHandle);
-}
-
-
-/*
- * Read data from the pipe.
- *
- * For Linux and Darwin, just call read().  For Windows, implement
- * non-blocking reads by calling PeekNamedPipe first.
- */
-int Pipe::read(void* buf, int count)
-{
-    assert(mReadHandle != kInvalidHandle);
-
-#if defined(HAVE_WIN32_IPC)
-    DWORD totalBytesAvail = count;
-    DWORD bytesRead;
-
-    if (mReadNonBlocking) {
-        // use PeekNamedPipe to adjust read count expectations
-        if (!PeekNamedPipe((HANDLE) mReadHandle, NULL, 0, NULL,
-                &totalBytesAvail, NULL))
-        {
-            LOG(LOG_ERROR, "pipe", "PeekNamedPipe failed\n");
-            return -1;
-        }
-
-        if (totalBytesAvail == 0)
-            return 0;
-    }
-
-    if (!ReadFile((HANDLE) mReadHandle, buf, totalBytesAvail, &bytesRead,
-            NULL))
-    {
-        DWORD err = GetLastError();
-        if (err == ERROR_HANDLE_EOF || err == ERROR_BROKEN_PIPE)
-            return 0;
-        LOG(LOG_ERROR, "pipe", "ReadFile failed (err=%ld)\n", err);
-        return -1;
-    }
-
-    return (int) bytesRead;
-#else
-    int cc;
-    cc = ::read(mReadHandle, buf, count);
-    if (cc < 0 && errno == EAGAIN)
-        return 0;
-    return cc;
-#endif
-}
-
-/*
- * Write data to the pipe.
- *
- * POSIX systems are trivial, Windows uses a different call and doesn't
- * handle non-blocking writes.
- *
- * If we add non-blocking support here, we probably want to make it an
- * all-or-nothing write.
- *
- * DO NOT use LOG() here, we could be writing a log message.
- */
-int Pipe::write(const void* buf, int count)
-{
-    assert(mWriteHandle != kInvalidHandle);
-
-#if defined(HAVE_WIN32_IPC)
-    DWORD bytesWritten;
-
-    if (mWriteNonBlocking) {
-        // BUG: can't use PeekNamedPipe() to get the amount of space
-        // left.  Looks like we need to use "overlapped I/O" functions.
-        // I just don't care that much.
-    }
-
-    if (!WriteFile((HANDLE) mWriteHandle, buf, count, &bytesWritten, NULL)) {
-        // can't LOG, use stderr
-        fprintf(stderr, "WriteFile failed (err=%ld)\n", GetLastError());
-        return -1;
-    }
-
-    return (int) bytesWritten;
-#else
-    int cc;
-    cc = ::write(mWriteHandle, buf, count);
-    if (cc < 0 && errno == EAGAIN)
-        return 0;
-    return cc;
-#endif
-}
-
-/*
- * Figure out if there is data available on the read fd.
- *
- * We return "true" on error because we want the caller to try to read
- * from the pipe.  They'll notice the read failure and do something
- * appropriate.
- */
-bool Pipe::readReady(void)
-{
-    assert(mReadHandle != kInvalidHandle);
-
-#if defined(HAVE_WIN32_IPC)
-    DWORD totalBytesAvail;
-
-    if (!PeekNamedPipe((HANDLE) mReadHandle, NULL, 0, NULL,
-            &totalBytesAvail, NULL))
-    {
-        LOG(LOG_ERROR, "pipe", "PeekNamedPipe failed\n");
-        return true;
-    }
-
-    return (totalBytesAvail != 0);
-#else
-    errno = 0;
-    fd_set readfds;
-    struct timeval tv = { 0, 0 };
-    int cc;
-
-    FD_ZERO(&readfds);
-    FD_SET(mReadHandle, &readfds);
-
-    cc = select(mReadHandle+1, &readfds, NULL, NULL, &tv);
-    if (cc < 0) {
-        LOG(LOG_ERROR, "pipe", "select() failed\n");
-        return true;
-    } else if (cc == 0) {
-        /* timed out, nothing available */
-        return false;
-    } else if (cc == 1) {
-        /* our fd is ready */
-        return true;
-    } else {
-        LOG(LOG_ERROR, "pipe", "HUH? select() returned > 1\n");
-        return true;
-    }
-#endif
-}
-
-/*
- * Enable or disable non-blocking mode for the read descriptor.
- *
- * NOTE: the calls succeed under Mac OS X, but the pipe doesn't appear to
- * actually be in non-blocking mode.  If this matters -- i.e. you're not
- * using a select() call -- put a call to readReady() in front of the
- * ::read() call, with a PIPE_NONBLOCK_BROKEN #ifdef in the Makefile for
- * Darwin.
- */
-bool Pipe::setReadNonBlocking(bool val)
-{
-    assert(mReadHandle != kInvalidHandle);
-
-#if defined(HAVE_WIN32_IPC)
-    // nothing to do
-#else
-    int flags;
-
-    if (fcntl(mReadHandle, F_GETFL, &flags) == -1) {
-        LOG(LOG_ERROR, "pipe", "couldn't get flags for pipe read fd\n");
-        return false;
-    }
-    if (val)
-        flags |= O_NONBLOCK;
-    else
-        flags &= ~(O_NONBLOCK);
-    if (fcntl(mReadHandle, F_SETFL, &flags) == -1) {
-        LOG(LOG_ERROR, "pipe", "couldn't set flags for pipe read fd\n");
-        return false;
-    }
-#endif
-
-    mReadNonBlocking = val;
-    return true;
-}
-
-/*
- * Enable or disable non-blocking mode for the write descriptor.
- *
- * As with setReadNonBlocking(), this does not work on the Mac.
- */
-bool Pipe::setWriteNonBlocking(bool val)
-{
-    assert(mWriteHandle != kInvalidHandle);
-
-#if defined(HAVE_WIN32_IPC)
-    // nothing to do
-#else
-    int flags;
-
-    if (fcntl(mWriteHandle, F_GETFL, &flags) == -1) {
-        LOG(LOG_WARN, "pipe",
-            "Warning: couldn't get flags for pipe write fd (errno=%d)\n",
-            errno);
-        return false;
-    }
-    if (val)
-        flags |= O_NONBLOCK;
-    else
-        flags &= ~(O_NONBLOCK);
-    if (fcntl(mWriteHandle, F_SETFL, &flags) == -1) {
-        LOG(LOG_WARN, "pipe",
-            "Warning: couldn't set flags for pipe write fd (errno=%d)\n",
-            errno);
-        return false;
-    }
-#endif
-
-    mWriteNonBlocking = val;
-    return true;
-}
-
-/*
- * Specify whether a file descriptor can be inherited by a child process.
- * Under Linux this means setting the close-on-exec flag, under Windows
- * this is SetHandleInformation(HANDLE_FLAG_INHERIT).
- */
-bool Pipe::disallowReadInherit(void)
-{
-    if (mReadHandle == kInvalidHandle)
-        return false;
-
-#if defined(HAVE_WIN32_IPC)
-    if (SetHandleInformation((HANDLE) mReadHandle, HANDLE_FLAG_INHERIT, 0) == 0)
-        return false;
-#else
-    if (fcntl((int) mReadHandle, F_SETFD, FD_CLOEXEC) != 0)
-        return false;
-#endif
-    return true;
-}
-bool Pipe::disallowWriteInherit(void)
-{
-    if (mWriteHandle == kInvalidHandle)
-        return false;
-
-#if defined(HAVE_WIN32_IPC)
-    if (SetHandleInformation((HANDLE) mWriteHandle, HANDLE_FLAG_INHERIT, 0) == 0)
-        return false;
-#else
-    if (fcntl((int) mWriteHandle, F_SETFD, FD_CLOEXEC) != 0)
-        return false;
-#endif
-    return true;
-}
-
-/*
- * Close read descriptor.
- */
-bool Pipe::closeRead(void)
-{
-    if (mReadHandle == kInvalidHandle)
-        return false;
-
-#if defined(HAVE_WIN32_IPC)
-    if (mReadHandle != kInvalidHandle) {
-        if (!CloseHandle((HANDLE)mReadHandle)) {
-            LOG(LOG_WARN, "pipe", "failed closing read handle\n");
-            return false;
-        }
-    }
-#else
-    if (mReadHandle != kInvalidHandle) {
-        if (close((int) mReadHandle) != 0) {
-            LOG(LOG_WARN, "pipe", "failed closing read fd\n");
-            return false;
-        }
-    }
-#endif
-    mReadHandle = kInvalidHandle;
-    return true;
-}
-
-/*
- * Close write descriptor.
- */
-bool Pipe::closeWrite(void)
-{
-    if (mWriteHandle == kInvalidHandle)
-        return false;
-
-#if defined(HAVE_WIN32_IPC)
-    if (mWriteHandle != kInvalidHandle) {
-        if (!CloseHandle((HANDLE)mWriteHandle)) {
-            LOG(LOG_WARN, "pipe", "failed closing write handle\n");
-            return false;
-        }
-    }
-#else
-    if (mWriteHandle != kInvalidHandle) {
-        if (close((int) mWriteHandle) != 0) {
-            LOG(LOG_WARN, "pipe", "failed closing write fd\n");
-            return false;
-        }
-    }
-#endif
-    mWriteHandle = kInvalidHandle;
-    return true;
-}
-
-/*
- * Get the read handle.
- */
-unsigned long Pipe::getReadHandle(void)
-{
-    assert(mReadHandle != kInvalidHandle);
-
-    return mReadHandle;
-}
-
-/*
- * Get the write handle.
- */
-unsigned long Pipe::getWriteHandle(void)
-{
-    assert(mWriteHandle != kInvalidHandle);
-
-    return mWriteHandle;
-}
-