libcore_io_Linux.cpp revision 454a95f6a28855aa3c88d168b15a45bf315efc99
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" 220f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes#include "ScopedPrimitiveArray.h" 23ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "ScopedUtfChars.h" 2459fa7163774d6930a174bc038414a4b780581957Elliott Hughes#include "StaticAssert.h" 25ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include "toStringArray.h" 26ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 27ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include <errno.h> 280ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <fcntl.h> 29ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include <stdlib.h> 30461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes#include <sys/ioctl.h> 317e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes#include <sys/mman.h> 328b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes#include <sys/sendfile.h> 3359e4744d27231f260271dbbca406e0cc39768116Elliott Hughes#include <sys/socket.h> 3447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes#include <sys/stat.h> 350ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <sys/types.h> 36bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes#include <sys/uio.h> 377341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#include <sys/utsname.h> 3859fa7163774d6930a174bc038414a4b780581957Elliott Hughes#include <sys/vfs.h> // Bionic doesn't have <sys/statvfs.h> 390ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <unistd.h> 40ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 417e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* name) { 427e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int errnum = errno; 437e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 44ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jthrowable cause = NULL; 45ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (env->ExceptionCheck()) { 46ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes cause = env->ExceptionOccurred(); 47ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->ExceptionClear(); 48ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 49ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 50f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes ScopedLocalRef<jstring> javaName(env, env->NewStringUTF(name)); 51f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes if (javaName.get() == NULL) { 52f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // Not really much we can do here. We're probably dead in the water, 53f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // but let's try to stumble on... 54f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes env->ExceptionClear(); 55f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes } 56f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 57ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jobject exception; 58ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (cause != NULL) { 59f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::errnoExceptionClass, "<init>", 60f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 61f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes exception = env->NewObject(JniConstants::errnoExceptionClass, ctor, 62f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes javaName.get(), errnum, cause); 63ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } else { 64f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::errnoExceptionClass, "<init>", 65f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes "(Ljava/lang/String;I)V"); 66f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes exception = env->NewObject(JniConstants::errnoExceptionClass, ctor, javaName.get(), errnum); 67ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 68ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->Throw(reinterpret_cast<jthrowable>(exception)); 69dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 70dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 71dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t> 727e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { 73dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == rc_t(-1)) { 747e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, name); 75dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 76dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes return rc; 7747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 7847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 79bbac92e691de7d570928ddfba639067978e55b06Elliott Hughestemplate <typename T> 80bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesclass IoVec { 81bbac92e691de7d570928ddfba639067978e55b06Elliott Hughespublic: 82bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) { 83bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 84bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 85bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) { 86bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // We can't delete our local references until after the I/O, so make sure we have room. 87bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) { 88bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 89bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 90bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO offsets(mEnv, javaOffsets); 91bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (offsets.get() == NULL) { 92bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 93bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 94bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO byteCounts(mEnv, javaByteCounts); 95bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (byteCounts.get() == NULL) { 96bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 97bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 98bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too. 99bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes for (size_t i = 0; i < mBufferCount; ++i) { 100bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); 101bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes jbyte* ptr; 102bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (mEnv->IsInstanceOf(buffer, JniConstants::byteArrayClass)) { 103bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // We need to pin the array for the duration. 104bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes jbyteArray byteArray = reinterpret_cast<jbyteArray>(buffer); 105bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mScopedByteArrays.push_back(new T(mEnv, byteArray)); 106bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ptr = const_cast<jbyte*>(mScopedByteArrays.back()->get()); 107bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } else { 108bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // A direct ByteBuffer is easier. 109bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ptr = reinterpret_cast<jbyte*>(mEnv->GetDirectBufferAddress(buffer)); 110bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 111bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (ptr == NULL) { 112bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 113bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 114bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes struct iovec iov; 115bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]); 116bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_len = byteCounts[i]; 117bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mIoVec.push_back(iov); 118bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 119bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return true; 120bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 121bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 122bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ~IoVec() { 123bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes for (size_t i = 0; i < mScopedByteArrays.size(); ++i) { 124bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes delete mScopedByteArrays[i]; 125bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 126bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mEnv->PopLocalFrame(NULL); 127bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 128bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 129bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iovec* get() { 130bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return &mIoVec[0]; 131bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 132bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 133bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t size() { 134bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return mBufferCount; 135bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 136bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 137bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesprivate: 138bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes JNIEnv* mEnv; 139bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t mBufferCount; 140bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes std::vector<iovec> mIoVec; 141bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes std::vector<T*> mScopedByteArrays; 142bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}; 143bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 14447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject makeStructStat(JNIEnv* env, const struct stat& sb) { 14547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", 14647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes "(JJIJIIJJJJJJJ)V"); 14747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return env->NewObject(JniConstants::structStatClass, ctor, 14859fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), 14959fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), 15059fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), 15159fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), 15259fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime), 15359fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize), 15459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_blocks)); 15559fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 15659fa7163774d6930a174bc038414a4b780581957Elliott Hughes 15759fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject makeStructStatFs(JNIEnv* env, const struct statfs& sb) { 15859fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_bavail) == sizeof(jlong), statfs_not_64_bit); 15959fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_bfree) == sizeof(jlong), statfs_not_64_bit); 16059fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_blocks) == sizeof(jlong), statfs_not_64_bit); 16159fa7163774d6930a174bc038414a4b780581957Elliott Hughes 16259fa7163774d6930a174bc038414a4b780581957Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatFsClass, "<init>", 16359fa7163774d6930a174bc038414a4b780581957Elliott Hughes "(JJJJJJJJ)V"); 16459fa7163774d6930a174bc038414a4b780581957Elliott Hughes return env->NewObject(JniConstants::structStatFsClass, ctor, static_cast<jlong>(sb.f_bsize), 16559fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_blocks), static_cast<jlong>(sb.f_bfree), 16659fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_bavail), static_cast<jlong>(sb.f_files), 16759fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_ffree), static_cast<jlong>(sb.f_namelen), 16859fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_frsize)); 16947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 17047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 1717341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { 1727341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#define TO_JAVA_STRING(NAME) \ 1737341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes jstring NAME = env->NewStringUTF(buf. NAME); \ 1747341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes if (NAME == NULL) return NULL; 1757341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 1767341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(sysname); 1777341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(nodename); 1787341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(release); 1797341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(version); 1807341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(machine); 1817341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#undef TO_JAVA_STRING 1827341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 1837341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>", 1847341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); 1857341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return env->NewObject(JniConstants::structUtsnameClass, ctor, 1867341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes sysname, nodename, release, version, machine); 1877341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes}; 1887341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 18947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { 19047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes ScopedUtfChars path(env, javaPath); 19147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes if (path.c_str() == NULL) { 19247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 19347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 19447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 19547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = isLstat ? TEMP_FAILURE_RETRY(lstat(path.c_str(), &sb)) 19647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes : TEMP_FAILURE_RETRY(stat(path.c_str(), &sb)); 197dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 1987e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, isLstat ? "lstat" : "stat"); 19947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 20047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 20147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 202ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 203ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 204ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { 205ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes ScopedUtfChars path(env, javaPath); 206ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (path.c_str() == NULL) { 207ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return JNI_FALSE; 208ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 20947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); 210dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 2117e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "access"); 212dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 213ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return (rc == 0); 214ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 215ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 216b7190190e0ef8de883c952efb319ce7748831faaElliott Hughesstatic void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { 217b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes ScopedUtfChars path(env, javaPath); 218b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes if (path.c_str() == NULL) { 219b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes return; 220b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes } 221b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); 222b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes} 223b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes 224ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jobjectArray Posix_environ(JNIEnv* env, jobject) { 225ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes extern char** environ; // Standard, but not in any header file. 226ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return toStringArray(env, environ); 227ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 228ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 229fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) { 230fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 231fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd))); 232fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 233fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 234fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlLong(JNIEnv* env, jobject, jobject javaFd, jint cmd, jlong arg) { 235fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 236fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg))); 237fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 238fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 239fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) { 240fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S"); 241fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S"); 242fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J"); 243fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J"); 244fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I"); 245fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 246fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes struct flock64 lock; 247fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes memset(&lock, 0, sizeof(lock)); 248fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_type = env->GetShortField(javaFlock, typeFid); 249fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_whence = env->GetShortField(javaFlock, whenceFid); 250fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_start = env->GetLongField(javaFlock, startFid); 251fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_len = env->GetLongField(javaFlock, lenFid); 252fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_pid = env->GetIntField(javaFlock, pidFid); 253fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 254fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 255fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int rc = throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, &lock))); 256fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes if (rc != -1) { 257fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, typeFid, lock.l_type); 258fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, whenceFid, lock.l_whence); 259fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, startFid, lock.l_start); 260fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, lenFid, lock.l_len); 261fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetIntField(javaFlock, pidFid, lock.l_pid); 262fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes } 263fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return rc; 264fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 265fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 26652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) { 26752724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2687e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); 26952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 27052724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 27147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) { 27247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 27347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 27447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstat(fd, &sb)); 275dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 2767e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "fstat"); 27747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 27847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 27947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 28047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 28147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 28259fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject Posix_fstatfs(JNIEnv* env, jobject, jobject javaFd) { 28359fa7163774d6930a174bc038414a4b780581957Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 28459fa7163774d6930a174bc038414a4b780581957Elliott Hughes struct statfs sb; 28559fa7163774d6930a174bc038414a4b780581957Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstatfs(fd, &sb)); 28659fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 28759fa7163774d6930a174bc038414a4b780581957Elliott Hughes throwErrnoException(env, "fstatfs"); 28859fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 28959fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 29059fa7163774d6930a174bc038414a4b780581957Elliott Hughes return makeStructStatFs(env, sb); 29159fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 29259fa7163774d6930a174bc038414a4b780581957Elliott Hughes 29352724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) { 29452724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2957e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); 296f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes} 297f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 298f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughesstatic void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { 299f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 3007e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); 30152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 30252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 303ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) { 304ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes ScopedUtfChars name(env, javaName); 305ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes if (name.c_str() == NULL) { 306ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return NULL; 307ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes } 308ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return env->NewStringUTF(getenv(name.c_str())); 309ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 310ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 3118b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jint Posix_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) { 3128b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // This is complicated because ioctls may return their result by updating their argument 3138b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // or via their return value, so we need to support both. 314461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 3158b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 3168b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jint arg = env->GetIntField(javaArg, valueFid); 3178b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg))); 3188b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (!env->ExceptionCheck()) { 3198b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetIntField(javaArg, valueFid, arg); 3208b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 3218b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return rc; 322461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes} 323461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes 3249a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughesstatic jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) { 3259a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 3269a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes return TEMP_FAILURE_RETRY(isatty(fd)) == 0; 3279a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes} 3289a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes 329e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughesstatic void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { 330e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 331e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); 332e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes} 333e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes 334dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughesstatic jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { 335dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 3367e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); 337dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 338dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 33947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) { 34047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, true); 34147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 34247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 3430f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughesstatic void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { 3440f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes ScopedByteArrayRW vector(env, javaVector); 3450f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes if (vector.get() == NULL) { 3460f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes return; 3470f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes } 3480f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 3490f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); 3500f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); 3510f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes} 3520f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes 353c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { 354c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 355c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 356c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 357c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 358c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); 359c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 360c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 3617e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 3627e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 3637e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); 3647e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 3657e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 3667e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { 3677e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 3687e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 3697e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = mmap(suggestedPtr, byteCount, prot, flags, fd, offset); 3707e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes if (ptr == MAP_FAILED) { 3717e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "mmap"); 3727e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes } 3737e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); 3747e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 3757e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 3767e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { 3777e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 3787e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); 3797e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 3807e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 3817e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 3827e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 3837e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); 3847e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 3857e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 3867e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { 3877e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 3887e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); 3897e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 3907e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 3910ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughesstatic jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { 3920ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes ScopedUtfChars path(env, javaPath); 3930ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes if (path.c_str() == NULL) { 3940ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return NULL; 3950ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes } 3960ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); 3970ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 3980ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes} 3990ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes 40041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughesstatic jobjectArray Posix_pipe(JNIEnv* env, jobject) { 40141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes int fds[2]; 40241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes throwIfMinusOne(env, "pipe", TEMP_FAILURE_RETRY(pipe(&fds[0]))); 40341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); 40441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (result == NULL) { 40541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 40641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 40741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes for (int i = 0; i < 2; ++i) { 40841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); 40941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (fd.get() == NULL) { 41041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 41141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 41241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes env->SetObjectArrayElement(result, i, fd.get()); 41341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (env->ExceptionCheck()) { 41441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 41541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 41641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 41741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return result; 41841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes} 41941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes 42026c7025a7a919044771fb89031161bd26fe03032Elliott Hughesstatic jint Posix_read(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { 42126c7025a7a919044771fb89031161bd26fe03032Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 42226c7025a7a919044771fb89031161bd26fe03032Elliott Hughes ScopedByteArrayRW bytes(env, javaBytes); 42326c7025a7a919044771fb89031161bd26fe03032Elliott Hughes if (bytes.get() == NULL) { 42426c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return -1; 42526c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 42626c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return throwIfMinusOne(env, "read", TEMP_FAILURE_RETRY(read(fd, bytes.get() + byteOffset, byteCount))); 42726c7025a7a919044771fb89031161bd26fe03032Elliott Hughes} 42826c7025a7a919044771fb89031161bd26fe03032Elliott Hughes 42926c7025a7a919044771fb89031161bd26fe03032Elliott Hughesstatic jint Posix_readDirectBuffer(JNIEnv* env, jobject, jobject javaFd, jobject byteBuffer, jint position, jint remaining) { 43026c7025a7a919044771fb89031161bd26fe03032Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 43126c7025a7a919044771fb89031161bd26fe03032Elliott Hughes jbyte* ptr = reinterpret_cast<jbyte*>(env->GetDirectBufferAddress(byteBuffer)); 43226c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return throwIfMinusOne(env, "read", TEMP_FAILURE_RETRY(read(fd, ptr + position, remaining))); 43326c7025a7a919044771fb89031161bd26fe03032Elliott Hughes} 43426c7025a7a919044771fb89031161bd26fe03032Elliott Hughes 435bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 436bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec<ScopedByteArrayRW> ioVec(env, env->GetArrayLength(buffers)); 437bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 438bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 439bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 440bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 441bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return throwIfMinusOne(env, "readv", TEMP_FAILURE_RETRY(readv(fd, ioVec.get(), ioVec.size()))); 442bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 443bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 444c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_remove(JNIEnv* env, jobject, jstring javaPath) { 445c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 446c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 447c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 448c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 449c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); 450c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 451c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 452a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 453a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 454a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 455a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 456a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 457a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 458a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 459a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 460a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 461a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); 462a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 463a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 4648b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jlong Posix_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) { 4658b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int outFd = jniGetFDFromFileDescriptor(env, javaOutFd); 4668b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int inFd = jniGetFDFromFileDescriptor(env, javaInFd); 4678b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J"); 4688b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t offset = 0; 4698b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t* offsetPtr = NULL; 4708b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 4718b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // TODO: fix bionic so we can have a 64-bit off_t! 4728b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offset = env->GetLongField(javaOffset, valueFid); 4738b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offsetPtr = &offset; 4748b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 4758b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount))); 4768b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 4778b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetLongField(javaOffset, valueFid, offset); 4788b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 4798b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return result; 4808b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes} 4818b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes 482454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic void Posix_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 483454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 484454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 485454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 486454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 48759e4744d27231f260271dbbca406e0cc39768116Elliott Hughesstatic void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { 48859e4744d27231f260271dbbca406e0cc39768116Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 48959e4744d27231f260271dbbca406e0cc39768116Elliott Hughes throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); 49059e4744d27231f260271dbbca406e0cc39768116Elliott Hughes} 49159e4744d27231f260271dbbca406e0cc39768116Elliott Hughes 492454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic jobject Posix_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) { 493454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol))); 494454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 495454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 496454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 49747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) { 49847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, false); 49947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 50047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 50159fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject Posix_statfs(JNIEnv* env, jstring javaPath) { 50259fa7163774d6930a174bc038414a4b780581957Elliott Hughes ScopedUtfChars path(env, javaPath); 50359fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (path.c_str() == NULL) { 50459fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 50559fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 50659fa7163774d6930a174bc038414a4b780581957Elliott Hughes struct statfs sb; 50759fa7163774d6930a174bc038414a4b780581957Elliott Hughes int rc = TEMP_FAILURE_RETRY(statfs(path.c_str(), &sb)); 50859fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 50959fa7163774d6930a174bc038414a4b780581957Elliott Hughes throwErrnoException(env, "statfs"); 51059fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 51159fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 51259fa7163774d6930a174bc038414a4b780581957Elliott Hughes return makeStructStatFs(env, sb); 51359fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 51459fa7163774d6930a174bc038414a4b780581957Elliott Hughes 515ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) { 51652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes char buffer[BUFSIZ]; 517ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes const char* message = jniStrError(errnum, buffer, sizeof(buffer)); 518ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return env->NewStringUTF(message); 519ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 520ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 521a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 522a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 523a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 524a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 525a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 526a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 527a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 528a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 529a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 530a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); 531a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 532a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 5336fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughesstatic jlong Posix_sysconf(JNIEnv* env, jobject, jint name) { 5346fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. 5356fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes errno = 0; 5366fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes long result = sysconf(name); 5376fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes if (result == -1L && errno == EINVAL) { 5387e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "sysconf"); 5396fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes } 5406fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes return result; 5416fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes} 5426fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes 5437341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject Posix_uname(JNIEnv* env, jobject) { 5447341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes struct utsname buf; 5457341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes if (throwIfMinusOne(env, "uname", TEMP_FAILURE_RETRY(uname(&buf))) == -1) { 5467341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return NULL; 5477341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes } 5487341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return makeStructUtsname(env, buf); 5497341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes} 5507341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 55178c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughesstatic jint Posix_write(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { 55278c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 55378c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes ScopedByteArrayRO bytes(env, javaBytes); 55478c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes if (bytes.get() == NULL) { 55578c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return -1; 55678c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 55778c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return throwIfMinusOne(env, "write", TEMP_FAILURE_RETRY(write(fd, bytes.get() + byteOffset, byteCount))); 55878c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes} 55978c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes 56078c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughesstatic jint Posix_writeDirectBuffer(JNIEnv* env, jobject, jobject javaFd, jobject byteBuffer, jint position, jint remaining) { 56178c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 56278c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes jbyte* ptr = reinterpret_cast<jbyte*>(env->GetDirectBufferAddress(byteBuffer)); 56378c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return throwIfMinusOne(env, "write", TEMP_FAILURE_RETRY(write(fd, ptr + position, remaining))); 56478c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes} 56578c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes 566bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 567bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec<ScopedByteArrayRO> ioVec(env, env->GetArrayLength(buffers)); 568bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 569bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 570bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 571bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 572bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return throwIfMinusOne(env, "writev", TEMP_FAILURE_RETRY(writev(fd, ioVec.get(), ioVec.size()))); 573bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 574bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 575ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = { 576ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"), 577b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"), 578ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"), 579fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"), 580fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlLong, "(Ljava/io/FileDescriptor;IJ)I"), 581fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlFlock, "(Ljava/io/FileDescriptor;ILlibcore/io/StructFlock;)I"), 58252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"), 58347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStat;"), 58459fa7163774d6930a174bc038414a4b780581957Elliott Hughes NATIVE_METHOD(Posix, fstatfs, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStatFs;"), 58552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"), 586f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"), 587ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), 5888b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes NATIVE_METHOD(Posix, ioctlInt, "(Ljava/io/FileDescriptor;ILlibcore/util/MutableInt;)I"), 5899a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"), 590e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"), 591dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"), 59247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), 5930f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes NATIVE_METHOD(Posix, mincore, "(JJ[B)V"), 594c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"), 5957e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, mlock, "(JJ)V"), 5967e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"), 5977e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, msync, "(JJI)V"), 5987e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, munlock, "(JJ)V"), 5997e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, munmap, "(JJ)V"), 6000ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), 60141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes NATIVE_METHOD(Posix, pipe, "()[Ljava/io/FileDescriptor;"), 60226c7025a7a919044771fb89031161bd26fe03032Elliott Hughes NATIVE_METHOD(Posix, read, "(Ljava/io/FileDescriptor;[BII)I"), 60326c7025a7a919044771fb89031161bd26fe03032Elliott Hughes NATIVE_METHOD(Posix, readDirectBuffer, "(Ljava/io/FileDescriptor;Ljava/nio/ByteBuffer;II)I"), 604bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 605c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"), 606a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), 6078b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes NATIVE_METHOD(Posix, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Llibcore/util/MutableLong;J)J"), 608454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"), 60959e4744d27231f260271dbbca406e0cc39768116Elliott Hughes NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"), 610454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, socket, "(III)Ljava/io/FileDescriptor;"), 61147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), 61259fa7163774d6930a174bc038414a4b780581957Elliott Hughes NATIVE_METHOD(Posix, statfs, "(Ljava/lang/String;)Llibcore/io/StructStatFs;"), 613ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"), 614a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), 6156fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes NATIVE_METHOD(Posix, sysconf, "(I)J"), 6167341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes NATIVE_METHOD(Posix, uname, "()Llibcore/io/StructUtsname;"), 61778c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes NATIVE_METHOD(Posix, write, "(Ljava/io/FileDescriptor;[BII)I"), 61878c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes NATIVE_METHOD(Posix, writeDirectBuffer, "(Ljava/io/FileDescriptor;Ljava/nio/ByteBuffer;II)I"), 619bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 620ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}; 621ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesint register_libcore_io_Posix(JNIEnv* env) { 622ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods)); 623ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 624