libcore_io_Linux.cpp revision 438cb9e440d250c8aa5daf4fae0c400dce8b1499
1ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes/* 2ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Copyright (C) 2011 The Android Open Source Project 3ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 4ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 5ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * you may not use this file except in compliance with the License. 6ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * You may obtain a copy of the License at 7ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 8ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 9ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 10ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Unless required by applicable law or agreed to in writing, software 11ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 12ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * See the License for the specific language governing permissions and 14ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * limitations under the License. 15ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes */ 16ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 17ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#define LOG_TAG "Posix" 18ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 19ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "JNIHelp.h" 20ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "JniConstants.h" 21ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include "JniException.h" 220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include "NetworkUtilities.h" 230f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes#include "ScopedPrimitiveArray.h" 24ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "ScopedUtfChars.h" 2559fa7163774d6930a174bc038414a4b780581957Elliott Hughes#include "StaticAssert.h" 26ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include "toStringArray.h" 27ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 28ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include <errno.h> 290ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <fcntl.h> 300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <netinet/in.h> 31ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include <stdlib.h> 32461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes#include <sys/ioctl.h> 337e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes#include <sys/mman.h> 348b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes#include <sys/sendfile.h> 3559e4744d27231f260271dbbca406e0cc39768116Elliott Hughes#include <sys/socket.h> 3647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes#include <sys/stat.h> 370a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <sys/time.h> 380ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <sys/types.h> 39bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes#include <sys/uio.h> 407341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#include <sys/utsname.h> 4159fa7163774d6930a174bc038414a4b780581957Elliott Hughes#include <sys/vfs.h> // Bionic doesn't have <sys/statvfs.h> 420ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <unistd.h> 43ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 447e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* name) { 457e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int errnum = errno; 467e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 47ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jthrowable cause = NULL; 48ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (env->ExceptionCheck()) { 49ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes cause = env->ExceptionOccurred(); 50ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->ExceptionClear(); 51ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 52ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 53f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes ScopedLocalRef<jstring> javaName(env, env->NewStringUTF(name)); 54f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes if (javaName.get() == NULL) { 55f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // Not really much we can do here. We're probably dead in the water, 56f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // but let's try to stumble on... 57f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes env->ExceptionClear(); 58f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes } 59f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 60ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jobject exception; 61ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (cause != NULL) { 62f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::errnoExceptionClass, "<init>", 63f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 64f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes exception = env->NewObject(JniConstants::errnoExceptionClass, ctor, 65f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes javaName.get(), errnum, cause); 66ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } else { 67f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::errnoExceptionClass, "<init>", 68f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes "(Ljava/lang/String;I)V"); 69f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes exception = env->NewObject(JniConstants::errnoExceptionClass, ctor, javaName.get(), errnum); 70ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 71ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->Throw(reinterpret_cast<jthrowable>(exception)); 72dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 73dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 74dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t> 757e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { 76dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == rc_t(-1)) { 777e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, name); 78dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 79dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes return rc; 8047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 8147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 82bbac92e691de7d570928ddfba639067978e55b06Elliott Hughestemplate <typename T> 83bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesclass IoVec { 84bbac92e691de7d570928ddfba639067978e55b06Elliott Hughespublic: 85bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) { 86bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 87bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 88bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) { 89bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // We can't delete our local references until after the I/O, so make sure we have room. 90bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) { 91bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 92bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 93bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO offsets(mEnv, javaOffsets); 94bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (offsets.get() == NULL) { 95bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 96bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 97bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO byteCounts(mEnv, javaByteCounts); 98bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (byteCounts.get() == NULL) { 99bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 100bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 101bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too. 102bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes for (size_t i = 0; i < mBufferCount; ++i) { 103bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); 104bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes jbyte* ptr; 105bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (mEnv->IsInstanceOf(buffer, JniConstants::byteArrayClass)) { 106bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // We need to pin the array for the duration. 107bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes jbyteArray byteArray = reinterpret_cast<jbyteArray>(buffer); 108bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mScopedByteArrays.push_back(new T(mEnv, byteArray)); 109bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ptr = const_cast<jbyte*>(mScopedByteArrays.back()->get()); 110bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } else { 111bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // A direct ByteBuffer is easier. 112bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ptr = reinterpret_cast<jbyte*>(mEnv->GetDirectBufferAddress(buffer)); 113bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 114bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (ptr == NULL) { 115bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 116bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 117bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes struct iovec iov; 118bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]); 119bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_len = byteCounts[i]; 120bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mIoVec.push_back(iov); 121bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 122bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return true; 123bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 124bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 125bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ~IoVec() { 126bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes for (size_t i = 0; i < mScopedByteArrays.size(); ++i) { 127bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes delete mScopedByteArrays[i]; 128bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 129bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mEnv->PopLocalFrame(NULL); 130bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 131bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 132bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iovec* get() { 133bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return &mIoVec[0]; 134bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 135bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 136bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t size() { 137bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return mBufferCount; 138bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 139bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 140bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesprivate: 141bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes JNIEnv* mEnv; 142bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t mBufferCount; 143bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes std::vector<iovec> mIoVec; 144bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes std::vector<T*> mScopedByteArrays; 145bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}; 146bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 1470a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeInetSocketAddress(JNIEnv* env, const sockaddr_storage* ss, int port) { 1480a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes jobject inetAddress = socketAddressToInetAddress(env, ss); 1490a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (inetAddress == NULL) { 1500a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 1510a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 1520a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass, "<init>", 1530a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes "(Ljava/net/InetAddress;I)V"); 1540a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port); 1550a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 1560a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 1570a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage* ss) { 1580a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (ss->ss_family == AF_INET) { 1590a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int port = ntohs(reinterpret_cast<const sockaddr_in*>(ss)->sin_port); 1600a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeInetSocketAddress(env, ss, port); 1610a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } else if (ss->ss_family == AF_INET6) { 1620a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int port = ntohs(reinterpret_cast<const sockaddr_in6*>(ss)->sin6_port); 1630a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeInetSocketAddress(env, ss, port); 1640a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 1650a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes // TODO: support AF_UNIX and AF_UNSPEC, and have some other behavior for other families 1660a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 1670a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 1680a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 16947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject makeStructStat(JNIEnv* env, const struct stat& sb) { 17047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", 17147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes "(JJIJIIJJJJJJJ)V"); 17247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return env->NewObject(JniConstants::structStatClass, ctor, 17359fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), 17459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), 17559fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), 17659fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), 17759fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime), 17859fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize), 17959fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_blocks)); 18059fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 18159fa7163774d6930a174bc038414a4b780581957Elliott Hughes 18259fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject makeStructStatFs(JNIEnv* env, const struct statfs& sb) { 18359fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_bavail) == sizeof(jlong), statfs_not_64_bit); 18459fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_bfree) == sizeof(jlong), statfs_not_64_bit); 18559fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_blocks) == sizeof(jlong), statfs_not_64_bit); 18659fa7163774d6930a174bc038414a4b780581957Elliott Hughes 18759fa7163774d6930a174bc038414a4b780581957Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatFsClass, "<init>", 18859fa7163774d6930a174bc038414a4b780581957Elliott Hughes "(JJJJJJJJ)V"); 18959fa7163774d6930a174bc038414a4b780581957Elliott Hughes return env->NewObject(JniConstants::structStatFsClass, ctor, static_cast<jlong>(sb.f_bsize), 19059fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_blocks), static_cast<jlong>(sb.f_bfree), 19159fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_bavail), static_cast<jlong>(sb.f_files), 19259fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_ffree), static_cast<jlong>(sb.f_namelen), 19359fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_frsize)); 19447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 19547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 1960a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructLinger(JNIEnv* env, const struct linger& l) { 1970a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V"); 1980a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger); 1990a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2000a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 2010a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) { 2020a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V"); 2030a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structTimevalClass, ctor, 2040a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec)); 2050a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2060a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 2077341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { 2087341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#define TO_JAVA_STRING(NAME) \ 2097341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes jstring NAME = env->NewStringUTF(buf. NAME); \ 2107341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes if (NAME == NULL) return NULL; 2117341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 2127341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(sysname); 2137341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(nodename); 2147341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(release); 2157341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(version); 2167341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(machine); 2177341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#undef TO_JAVA_STRING 2187341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 2197341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>", 2207341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); 2217341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return env->NewObject(JniConstants::structUtsnameClass, ctor, 2227341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes sysname, nodename, release, version, machine); 2237341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes}; 2247341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 22547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { 22647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes ScopedUtfChars path(env, javaPath); 22747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes if (path.c_str() == NULL) { 22847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 22947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 23047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 23147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = isLstat ? TEMP_FAILURE_RETRY(lstat(path.c_str(), &sb)) 23247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes : TEMP_FAILURE_RETRY(stat(path.c_str(), &sb)); 233dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 2347e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, isLstat ? "lstat" : "stat"); 23547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 23647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 23747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 238ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 239ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 240ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { 241ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes ScopedUtfChars path(env, javaPath); 242ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (path.c_str() == NULL) { 243ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return JNI_FALSE; 244ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 24547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); 246dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 2477e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "access"); 248dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 249ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return (rc == 0); 250ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 251ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 252b7190190e0ef8de883c952efb319ce7748831faaElliott Hughesstatic void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { 253b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes ScopedUtfChars path(env, javaPath); 254b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes if (path.c_str() == NULL) { 255b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes return; 256b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes } 257b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); 258b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes} 259b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes 260462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughesstatic void Posix_close(JNIEnv* env, jobject, jobject javaFd) { 261462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Get the FileDescriptor's 'fd' field and clear it. 262462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // We need to do this before we can throw an IOException (http://b/3222087). 263462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 264462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd, -1); 265462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 266462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Even if close(2) fails with EINTR, the fd will have been closed. 267462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd. 268462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html 269462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes throwIfMinusOne(env, "close", close(fd)); 270462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes} 271462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 272ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jobjectArray Posix_environ(JNIEnv* env, jobject) { 273ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes extern char** environ; // Standard, but not in any header file. 274ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return toStringArray(env, environ); 275ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 276ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 277fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) { 278fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 279fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd))); 280fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 281fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 282fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlLong(JNIEnv* env, jobject, jobject javaFd, jint cmd, jlong arg) { 283fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 284fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg))); 285fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 286fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 287fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) { 288fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S"); 289fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S"); 290fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J"); 291fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J"); 292fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I"); 293fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 294fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes struct flock64 lock; 295fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes memset(&lock, 0, sizeof(lock)); 296fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_type = env->GetShortField(javaFlock, typeFid); 297fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_whence = env->GetShortField(javaFlock, whenceFid); 298fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_start = env->GetLongField(javaFlock, startFid); 299fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_len = env->GetLongField(javaFlock, lenFid); 300fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_pid = env->GetIntField(javaFlock, pidFid); 301fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 302fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 303fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int rc = throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, &lock))); 304fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes if (rc != -1) { 305fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, typeFid, lock.l_type); 306fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, whenceFid, lock.l_whence); 307fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, startFid, lock.l_start); 308fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, lenFid, lock.l_len); 309fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetIntField(javaFlock, pidFid, lock.l_pid); 310fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes } 311fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return rc; 312fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 313fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 31452724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) { 31552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 3167e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); 31752724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 31852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 31947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) { 32047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 32147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 32247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstat(fd, &sb)); 323dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 3247e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "fstat"); 32547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 32647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 32747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 32847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 32947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 33059fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject Posix_fstatfs(JNIEnv* env, jobject, jobject javaFd) { 33159fa7163774d6930a174bc038414a4b780581957Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 33259fa7163774d6930a174bc038414a4b780581957Elliott Hughes struct statfs sb; 33359fa7163774d6930a174bc038414a4b780581957Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstatfs(fd, &sb)); 33459fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 33559fa7163774d6930a174bc038414a4b780581957Elliott Hughes throwErrnoException(env, "fstatfs"); 33659fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 33759fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 33859fa7163774d6930a174bc038414a4b780581957Elliott Hughes return makeStructStatFs(env, sb); 33959fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 34059fa7163774d6930a174bc038414a4b780581957Elliott Hughes 34152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) { 34252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 3437e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); 344f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes} 345f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 346f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughesstatic void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { 347f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 3487e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); 34952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 35052724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 351ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) { 352ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes ScopedUtfChars name(env, javaName); 353ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes if (name.c_str() == NULL) { 354ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return NULL; 355ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes } 356ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return env->NewStringUTF(getenv(name.c_str())); 357ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 358ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 3590a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockname(JNIEnv* env, jobject, jobject javaFd) { 3600a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 3610a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 3620a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr* sa = reinterpret_cast<sockaddr*>(&ss); 3630a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t byteCount = sizeof(ss); 3640a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, byteCount); 3650a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount)); 3660a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 3670a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockname"); 3680a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 3690a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 3700a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeSocketAddress(env, &ss); 3710a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 3720a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 3730a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 3740a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 3750a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes u_char result = 0; 3760a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 3770a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 3780a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 3790a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 3800a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 3810a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 3820a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 3830a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 3840a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, sizeof(ss)); 3850a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF. 3860a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss); 3870a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(sa->sin_addr); 3880a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size)); 3890a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 3900a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 3910a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 3920a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 3930a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return socketAddressToInetAddress(env, &ss); 3940a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 3950a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 3960a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 3970a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 3980a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes jint result = 0; 3990a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 4000a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 4010a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 4020a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 4030a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 4040a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 4050a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 4060a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct linger l; 4070a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(l); 4080a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&l, 0, size); 4090a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size)); 4100a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 4110a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 4120a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 4130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 4140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructLinger(env, l); 4150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 4160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 4170a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 4180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 4190a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct timeval tv; 4200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(tv); 4210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&tv, 0, size); 4220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size)); 4230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 4240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 4250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 4260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 4270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructTimeval(env, tv); 4280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 4290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 4308b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jint Posix_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) { 4318b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // This is complicated because ioctls may return their result by updating their argument 4328b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // or via their return value, so we need to support both. 433461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 4348b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 4358b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jint arg = env->GetIntField(javaArg, valueFid); 4368b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg))); 4378b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (!env->ExceptionCheck()) { 4388b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetIntField(javaArg, valueFid, arg); 4398b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 4408b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return rc; 441461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes} 442461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes 4439a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughesstatic jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) { 4449a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 4459a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes return TEMP_FAILURE_RETRY(isatty(fd)) == 0; 4469a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes} 4479a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes 448e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughesstatic void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { 449e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 450e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); 451e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes} 452e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes 453dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughesstatic jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { 454dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 4557e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); 456dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 457dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 45847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) { 45947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, true); 46047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 46147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 4620f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughesstatic void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { 4630f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes ScopedByteArrayRW vector(env, javaVector); 4640f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes if (vector.get() == NULL) { 4650f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes return; 4660f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes } 4670f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 4680f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); 4690f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); 4700f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes} 4710f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes 472c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { 473c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 474c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 475c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 476c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 477c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); 478c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 479c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 4807e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 4817e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 4827e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); 4837e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 4847e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 4857e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { 4867e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 4877e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 4887e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = mmap(suggestedPtr, byteCount, prot, flags, fd, offset); 4897e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes if (ptr == MAP_FAILED) { 4907e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "mmap"); 4917e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes } 4927e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); 4937e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 4947e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 4957e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { 4967e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 4977e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); 4987e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 4997e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 5007e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 5017e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 5027e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); 5037e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 5047e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 5057e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { 5067e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 5077e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); 5087e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 5097e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 5100ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughesstatic jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { 5110ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes ScopedUtfChars path(env, javaPath); 5120ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes if (path.c_str() == NULL) { 5130ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return NULL; 5140ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes } 5150ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); 5160ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 5170ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes} 5180ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes 51941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughesstatic jobjectArray Posix_pipe(JNIEnv* env, jobject) { 52041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes int fds[2]; 52141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes throwIfMinusOne(env, "pipe", TEMP_FAILURE_RETRY(pipe(&fds[0]))); 52241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); 52341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (result == NULL) { 52441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 52541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 52641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes for (int i = 0; i < 2; ++i) { 52741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); 52841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (fd.get() == NULL) { 52941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 53041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 53141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes env->SetObjectArrayElement(result, i, fd.get()); 53241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (env->ExceptionCheck()) { 53341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 53441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 53541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 53641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return result; 53741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes} 53841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes 53926c7025a7a919044771fb89031161bd26fe03032Elliott Hughesstatic jint Posix_read(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { 54026c7025a7a919044771fb89031161bd26fe03032Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 54126c7025a7a919044771fb89031161bd26fe03032Elliott Hughes ScopedByteArrayRW bytes(env, javaBytes); 54226c7025a7a919044771fb89031161bd26fe03032Elliott Hughes if (bytes.get() == NULL) { 54326c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return -1; 54426c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 54526c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return throwIfMinusOne(env, "read", TEMP_FAILURE_RETRY(read(fd, bytes.get() + byteOffset, byteCount))); 54626c7025a7a919044771fb89031161bd26fe03032Elliott Hughes} 54726c7025a7a919044771fb89031161bd26fe03032Elliott Hughes 54826c7025a7a919044771fb89031161bd26fe03032Elliott Hughesstatic jint Posix_readDirectBuffer(JNIEnv* env, jobject, jobject javaFd, jobject byteBuffer, jint position, jint remaining) { 54926c7025a7a919044771fb89031161bd26fe03032Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 55026c7025a7a919044771fb89031161bd26fe03032Elliott Hughes jbyte* ptr = reinterpret_cast<jbyte*>(env->GetDirectBufferAddress(byteBuffer)); 55126c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return throwIfMinusOne(env, "read", TEMP_FAILURE_RETRY(read(fd, ptr + position, remaining))); 55226c7025a7a919044771fb89031161bd26fe03032Elliott Hughes} 55326c7025a7a919044771fb89031161bd26fe03032Elliott Hughes 554bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 555bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec<ScopedByteArrayRW> ioVec(env, env->GetArrayLength(buffers)); 556bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 557bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 558bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 559bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 560bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return throwIfMinusOne(env, "readv", TEMP_FAILURE_RETRY(readv(fd, ioVec.get(), ioVec.size()))); 561bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 562bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 563c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_remove(JNIEnv* env, jobject, jstring javaPath) { 564c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 565c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 566c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 567c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 568c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); 569c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 570c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 571a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 572a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 573a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 574a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 575a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 576a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 577a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 578a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 579a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 580a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); 581a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 582a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 5838b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jlong Posix_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) { 5848b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int outFd = jniGetFDFromFileDescriptor(env, javaOutFd); 5858b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int inFd = jniGetFDFromFileDescriptor(env, javaInFd); 5868b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J"); 5878b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t offset = 0; 5888b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t* offsetPtr = NULL; 5898b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 5908b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // TODO: fix bionic so we can have a 64-bit off_t! 5918b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offset = env->GetLongField(javaOffset, valueFid); 5928b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offsetPtr = &offset; 5938b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 5948b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount))); 5958b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 5968b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetLongField(javaOffset, valueFid, offset); 5978b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 5988b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return result; 5998b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes} 6008b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes 601c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 602c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 603c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes u_char byte = value; 604c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte)))); 605c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 606c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 607454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic void Posix_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 608454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 609454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 610454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 611454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 612438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) { 613438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes struct group_req value; 614438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 615438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I"); 616438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes value.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid); 617438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Get the IPv4 or IPv6 multicast address to join or leave. 618438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;"); 619438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes jobject javaGroup = env->GetObjectField(javaGroupReq, grGroupFid); 620438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes if (!inetAddressToSocketAddress(env, javaGroup, 0, &value.gr_group)) { 621438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes return; 622438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 623438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 624438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 625438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value))); 626438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes if (rc == -1 && errno == EINVAL) { 627438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Maybe we're a 32-bit binary talking to a 64-bit kernel? 628438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // glibc doesn't automatically handle this. 629438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes struct GCC_HIDDEN group_req64 { 630438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t gr_interface; 631438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t my_padding; 632438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes sockaddr_storage gr_group; 633438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes }; 634438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes group_req64 value64; 635438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes value64.gr_interface = value.gr_interface; 636438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes memcpy(&value64.gr_group, &value.gr_group, sizeof(value.gr_group)); 637438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value64, sizeof(value64))); 638438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 639438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes throwIfMinusOne(env, "setsockopt", rc); 640438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes} 641438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 642c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) { 643c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I"); 644c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I"); 645c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 646c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct linger value; 647c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_onoff = env->GetIntField(javaLinger, lOnoffFid); 648c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_linger = env->GetIntField(javaLinger, lLingerFid); 649c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 650c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 651c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 652c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) { 653c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J"); 654c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J"); 655c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 656c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct timeval value; 657c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.tv_sec = env->GetIntField(javaTimeval, tvSecFid); 658c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.tv_usec = env->GetIntField(javaTimeval, tvUsecFid); 659c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 660c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 661c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 66259e4744d27231f260271dbbca406e0cc39768116Elliott Hughesstatic void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { 66359e4744d27231f260271dbbca406e0cc39768116Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 66459e4744d27231f260271dbbca406e0cc39768116Elliott Hughes throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); 66559e4744d27231f260271dbbca406e0cc39768116Elliott Hughes} 66659e4744d27231f260271dbbca406e0cc39768116Elliott Hughes 667454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic jobject Posix_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) { 668454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol))); 669454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 670454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 671454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 67247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) { 67347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, false); 67447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 67547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 6760ade5524d972b9dfd69b0126aa4c35319c1b7fa4Elliott Hughesstatic jobject Posix_statfs(JNIEnv* env, jobject, jstring javaPath) { 67759fa7163774d6930a174bc038414a4b780581957Elliott Hughes ScopedUtfChars path(env, javaPath); 67859fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (path.c_str() == NULL) { 67959fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 68059fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 68159fa7163774d6930a174bc038414a4b780581957Elliott Hughes struct statfs sb; 68259fa7163774d6930a174bc038414a4b780581957Elliott Hughes int rc = TEMP_FAILURE_RETRY(statfs(path.c_str(), &sb)); 68359fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 68459fa7163774d6930a174bc038414a4b780581957Elliott Hughes throwErrnoException(env, "statfs"); 68559fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 68659fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 68759fa7163774d6930a174bc038414a4b780581957Elliott Hughes return makeStructStatFs(env, sb); 68859fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 68959fa7163774d6930a174bc038414a4b780581957Elliott Hughes 690ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) { 69152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes char buffer[BUFSIZ]; 692ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes const char* message = jniStrError(errnum, buffer, sizeof(buffer)); 693ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return env->NewStringUTF(message); 694ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 695ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 696a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 697a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 698a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 699a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 700a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 701a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 702a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 703a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 704a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 705a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); 706a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 707a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 7086fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughesstatic jlong Posix_sysconf(JNIEnv* env, jobject, jint name) { 7096fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. 7106fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes errno = 0; 7116fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes long result = sysconf(name); 7126fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes if (result == -1L && errno == EINVAL) { 7137e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "sysconf"); 7146fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes } 7156fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes return result; 7166fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes} 7176fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes 7187341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject Posix_uname(JNIEnv* env, jobject) { 7197341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes struct utsname buf; 7207341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes if (throwIfMinusOne(env, "uname", TEMP_FAILURE_RETRY(uname(&buf))) == -1) { 7217341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return NULL; 7227341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes } 7237341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return makeStructUtsname(env, buf); 7247341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes} 7257341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 72678c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughesstatic jint Posix_write(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { 72778c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 72878c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes ScopedByteArrayRO bytes(env, javaBytes); 72978c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes if (bytes.get() == NULL) { 73078c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return -1; 73178c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 73278c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return throwIfMinusOne(env, "write", TEMP_FAILURE_RETRY(write(fd, bytes.get() + byteOffset, byteCount))); 73378c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes} 73478c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes 73578c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughesstatic jint Posix_writeDirectBuffer(JNIEnv* env, jobject, jobject javaFd, jobject byteBuffer, jint position, jint remaining) { 73678c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 73778c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes jbyte* ptr = reinterpret_cast<jbyte*>(env->GetDirectBufferAddress(byteBuffer)); 73878c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return throwIfMinusOne(env, "write", TEMP_FAILURE_RETRY(write(fd, ptr + position, remaining))); 73978c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes} 74078c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes 741bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 742bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec<ScopedByteArrayRO> ioVec(env, env->GetArrayLength(buffers)); 743bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 744bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 745bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 746bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 747bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return throwIfMinusOne(env, "writev", TEMP_FAILURE_RETRY(writev(fd, ioVec.get(), ioVec.size()))); 748bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 749bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 750ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = { 751ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"), 752b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"), 753462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes NATIVE_METHOD(Posix, close, "(Ljava/io/FileDescriptor;)V"), 754ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"), 755fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"), 756fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlLong, "(Ljava/io/FileDescriptor;IJ)I"), 757fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlFlock, "(Ljava/io/FileDescriptor;ILlibcore/io/StructFlock;)I"), 75852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"), 75947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStat;"), 76059fa7163774d6930a174bc038414a4b780581957Elliott Hughes NATIVE_METHOD(Posix, fstatfs, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStatFs;"), 76152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"), 762f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"), 763ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), 7640a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 7650a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"), 7660a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"), 7670a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"), 7680a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Llibcore/io/StructLinger;"), 7690a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Llibcore/io/StructTimeval;"), 7708b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes NATIVE_METHOD(Posix, ioctlInt, "(Ljava/io/FileDescriptor;ILlibcore/util/MutableInt;)I"), 7719a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"), 772e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"), 773dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"), 77447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), 7750f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes NATIVE_METHOD(Posix, mincore, "(JJ[B)V"), 776c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"), 7777e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, mlock, "(JJ)V"), 7787e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"), 7797e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, msync, "(JJI)V"), 7807e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, munlock, "(JJ)V"), 7817e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, munmap, "(JJ)V"), 7820ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), 78341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes NATIVE_METHOD(Posix, pipe, "()[Ljava/io/FileDescriptor;"), 78426c7025a7a919044771fb89031161bd26fe03032Elliott Hughes NATIVE_METHOD(Posix, read, "(Ljava/io/FileDescriptor;[BII)I"), 78526c7025a7a919044771fb89031161bd26fe03032Elliott Hughes NATIVE_METHOD(Posix, readDirectBuffer, "(Ljava/io/FileDescriptor;Ljava/nio/ByteBuffer;II)I"), 786bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 787c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"), 788a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), 7898b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes NATIVE_METHOD(Posix, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Llibcore/util/MutableLong;J)J"), 790c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"), 791454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"), 792438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes NATIVE_METHOD(Posix, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILlibcore/io/StructGroupReq;)V"), 793c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptLinger, "(Ljava/io/FileDescriptor;IILlibcore/io/StructLinger;)V"), 794c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILlibcore/io/StructTimeval;)V"), 79559e4744d27231f260271dbbca406e0cc39768116Elliott Hughes NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"), 796454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, socket, "(III)Ljava/io/FileDescriptor;"), 79747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), 79859fa7163774d6930a174bc038414a4b780581957Elliott Hughes NATIVE_METHOD(Posix, statfs, "(Ljava/lang/String;)Llibcore/io/StructStatFs;"), 799ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"), 800a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), 8016fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes NATIVE_METHOD(Posix, sysconf, "(I)J"), 8027341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes NATIVE_METHOD(Posix, uname, "()Llibcore/io/StructUtsname;"), 80378c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes NATIVE_METHOD(Posix, write, "(Ljava/io/FileDescriptor;[BII)I"), 80478c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes NATIVE_METHOD(Posix, writeDirectBuffer, "(Ljava/io/FileDescriptor;Ljava/nio/ByteBuffer;II)I"), 805bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 806ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}; 807ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesint register_libcore_io_Posix(JNIEnv* env) { 808ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods)); 809ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 810