diff options
author | Andy McFadden <fadden@android.com> | 2009-05-27 16:01:39 -0700 |
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committer | Andy McFadden <fadden@android.com> | 2009-05-27 16:01:39 -0700 |
commit | da416411e0598adbf180c187eb0c2bc08a4df283 (patch) | |
tree | b59d59b32398ae96d876500125a81435f85eaba6 /libs | |
parent | 75cb9e7a51ce6081f399a508f485405bbaa0b70a (diff) | |
download | frameworks_native-da416411e0598adbf180c187eb0c2bc08a4df283.zip frameworks_native-da416411e0598adbf180c187eb0c2bc08a4df283.tar.gz frameworks_native-da416411e0598adbf180c187eb0c2bc08a4df283.tar.bz2 |
Sim-only files move, part 2/2.
Move Pipe and executablepath from libutils to the simulator, since nothing
else uses them.
Diffstat (limited to 'libs')
-rw-r--r-- | libs/utils/Android.mk | 8 | ||||
-rw-r--r-- | libs/utils/Pipe.cpp | 465 | ||||
-rw-r--r-- | libs/utils/executablepath_darwin.cpp | 31 | ||||
-rw-r--r-- | libs/utils/executablepath_linux.cpp | 30 |
4 files changed, 1 insertions, 533 deletions
diff --git a/libs/utils/Android.mk b/libs/utils/Android.mk index 30b6733..afad48e 100644 --- a/libs/utils/Android.mk +++ b/libs/utils/Android.mk @@ -55,7 +55,6 @@ commonSources:= \ # hostSources:= \ InetAddress.cpp \ - Pipe.cpp \ Socket.cpp \ ZipEntry.cpp \ ZipFile.cpp @@ -71,12 +70,7 @@ ifeq ($(HOST_OS),linux) # Use the futex based mutex and condition variable # implementation from android-arm because it's shared mem safe LOCAL_SRC_FILES += \ - futex_synchro.c \ - executablepath_linux.cpp -endif -ifeq ($(HOST_OS),darwin) - LOCAL_SRC_FILES += \ - executablepath_darwin.cpp + futex_synchro.c endif LOCAL_MODULE:= libutils 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; -} - diff --git a/libs/utils/executablepath_darwin.cpp b/libs/utils/executablepath_darwin.cpp deleted file mode 100644 index 2e3c3a0..0000000 --- a/libs/utils/executablepath_darwin.cpp +++ /dev/null @@ -1,31 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ - -#include <utils/executablepath.h> -#import <Carbon/Carbon.h> -#include <unistd.h> - -void executablepath(char s[PATH_MAX]) -{ - ProcessSerialNumber psn; - GetCurrentProcess(&psn); - CFDictionaryRef dict; - dict = ProcessInformationCopyDictionary(&psn, 0xffffffff); - CFStringRef value = (CFStringRef)CFDictionaryGetValue(dict, - CFSTR("CFBundleExecutable")); - CFStringGetCString(value, s, PATH_MAX+1, kCFStringEncodingUTF8); -} - diff --git a/libs/utils/executablepath_linux.cpp b/libs/utils/executablepath_linux.cpp deleted file mode 100644 index b8d2a3d..0000000 --- a/libs/utils/executablepath_linux.cpp +++ /dev/null @@ -1,30 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ - -#include <utils/executablepath.h> -#include <sys/types.h> -#include <unistd.h> -#include <limits.h> -#include <stdio.h> - -void executablepath(char exe[PATH_MAX]) -{ - char proc[100]; - sprintf(proc, "/proc/%d/exe", getpid()); - - int err = readlink(proc, exe, PATH_MAX); -} - |