libcore_io_Linux.cpp revision 7341b9ed7157a1e37a3e69a0974676da358b735a
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> 307e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes#include <sys/mman.h> 3159e4744d27231f260271dbbca406e0cc39768116Elliott Hughes#include <sys/socket.h> 3247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes#include <sys/stat.h> 330ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <sys/types.h> 347341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#include <sys/utsname.h> 3559fa7163774d6930a174bc038414a4b780581957Elliott Hughes#include <sys/vfs.h> // Bionic doesn't have <sys/statvfs.h> 360ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <unistd.h> 37ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 387e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* name) { 397e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int errnum = errno; 407e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 41ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jthrowable cause = NULL; 42ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (env->ExceptionCheck()) { 43ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes cause = env->ExceptionOccurred(); 44ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->ExceptionClear(); 45ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 46ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 47f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes ScopedLocalRef<jstring> javaName(env, env->NewStringUTF(name)); 48f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes if (javaName.get() == NULL) { 49f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // Not really much we can do here. We're probably dead in the water, 50f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // but let's try to stumble on... 51f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes env->ExceptionClear(); 52f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes } 53f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 54ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jobject exception; 55ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (cause != NULL) { 56f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::errnoExceptionClass, "<init>", 57f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 58f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes exception = env->NewObject(JniConstants::errnoExceptionClass, ctor, 59f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes javaName.get(), errnum, cause); 60ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } else { 61f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::errnoExceptionClass, "<init>", 62f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes "(Ljava/lang/String;I)V"); 63f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes exception = env->NewObject(JniConstants::errnoExceptionClass, ctor, javaName.get(), errnum); 64ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 65ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->Throw(reinterpret_cast<jthrowable>(exception)); 66dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 67dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 68dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t> 697e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { 70dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == rc_t(-1)) { 717e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, name); 72dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 73dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes return rc; 7447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 7547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 7647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject makeStructStat(JNIEnv* env, const struct stat& sb) { 7747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", 7847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes "(JJIJIIJJJJJJJ)V"); 7947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return env->NewObject(JniConstants::structStatClass, ctor, 8059fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), 8159fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), 8259fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), 8359fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), 8459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime), 8559fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize), 8659fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_blocks)); 8759fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 8859fa7163774d6930a174bc038414a4b780581957Elliott Hughes 8959fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject makeStructStatFs(JNIEnv* env, const struct statfs& sb) { 9059fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_bavail) == sizeof(jlong), statfs_not_64_bit); 9159fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_bfree) == sizeof(jlong), statfs_not_64_bit); 9259fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_blocks) == sizeof(jlong), statfs_not_64_bit); 9359fa7163774d6930a174bc038414a4b780581957Elliott Hughes 9459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatFsClass, "<init>", 9559fa7163774d6930a174bc038414a4b780581957Elliott Hughes "(JJJJJJJJ)V"); 9659fa7163774d6930a174bc038414a4b780581957Elliott Hughes return env->NewObject(JniConstants::structStatFsClass, ctor, static_cast<jlong>(sb.f_bsize), 9759fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_blocks), static_cast<jlong>(sb.f_bfree), 9859fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_bavail), static_cast<jlong>(sb.f_files), 9959fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_ffree), static_cast<jlong>(sb.f_namelen), 10059fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_frsize)); 10147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 10247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 1037341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { 1047341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#define TO_JAVA_STRING(NAME) \ 1057341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes jstring NAME = env->NewStringUTF(buf. NAME); \ 1067341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes if (NAME == NULL) return NULL; 1077341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 1087341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(sysname); 1097341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(nodename); 1107341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(release); 1117341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(version); 1127341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(machine); 1137341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#undef TO_JAVA_STRING 1147341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 1157341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>", 1167341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); 1177341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return env->NewObject(JniConstants::structUtsnameClass, ctor, 1187341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes sysname, nodename, release, version, machine); 1197341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes}; 1207341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 12147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { 12247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes ScopedUtfChars path(env, javaPath); 12347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes if (path.c_str() == NULL) { 12447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 12547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 12647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 12747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = isLstat ? TEMP_FAILURE_RETRY(lstat(path.c_str(), &sb)) 12847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes : TEMP_FAILURE_RETRY(stat(path.c_str(), &sb)); 129dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 1307e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, isLstat ? "lstat" : "stat"); 13147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 13247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 13347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 134ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 135ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 136ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { 137ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes ScopedUtfChars path(env, javaPath); 138ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (path.c_str() == NULL) { 139ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return JNI_FALSE; 140ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 14147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); 142dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 1437e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "access"); 144dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 145ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return (rc == 0); 146ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 147ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 148b7190190e0ef8de883c952efb319ce7748831faaElliott Hughesstatic void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { 149b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes ScopedUtfChars path(env, javaPath); 150b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes if (path.c_str() == NULL) { 151b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes return; 152b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes } 153b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); 154b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes} 155b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes 156ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jobjectArray Posix_environ(JNIEnv* env, jobject) { 157ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes extern char** environ; // Standard, but not in any header file. 158ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return toStringArray(env, environ); 159ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 160ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 16152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) { 16252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1637e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); 16452724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 16552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 16647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) { 16747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 16847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 16947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstat(fd, &sb)); 170dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 1717e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "fstat"); 17247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 17347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 17447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 17547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 17647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 17759fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject Posix_fstatfs(JNIEnv* env, jobject, jobject javaFd) { 17859fa7163774d6930a174bc038414a4b780581957Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 17959fa7163774d6930a174bc038414a4b780581957Elliott Hughes struct statfs sb; 18059fa7163774d6930a174bc038414a4b780581957Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstatfs(fd, &sb)); 18159fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 18259fa7163774d6930a174bc038414a4b780581957Elliott Hughes throwErrnoException(env, "fstatfs"); 18359fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 18459fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 18559fa7163774d6930a174bc038414a4b780581957Elliott Hughes return makeStructStatFs(env, sb); 18659fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 18759fa7163774d6930a174bc038414a4b780581957Elliott Hughes 18852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) { 18952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1907e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); 191f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes} 192f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 193f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughesstatic void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { 194f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1957e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); 19652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 19752724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 198ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) { 199ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes ScopedUtfChars name(env, javaName); 200ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes if (name.c_str() == NULL) { 201ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return NULL; 202ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes } 203ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return env->NewStringUTF(getenv(name.c_str())); 204ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 205ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 2069a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughesstatic jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) { 2079a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2089a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes return TEMP_FAILURE_RETRY(isatty(fd)) == 0; 2099a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes} 2109a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes 211e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughesstatic void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { 212e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 213e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); 214e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes} 215e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes 216dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughesstatic jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { 217dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2187e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); 219dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 220dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 22147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) { 22247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, true); 22347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 22447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 2250f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughesstatic void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { 2260f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes ScopedByteArrayRW vector(env, javaVector); 2270f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes if (vector.get() == NULL) { 2280f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes return; 2290f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes } 2300f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 2310f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); 2320f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); 2330f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes} 2340f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes 235c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { 236c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 237c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 238c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 239c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 240c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); 241c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 242c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 2437e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 2447e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 2457e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); 2467e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 2477e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 2487e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { 2497e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2507e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 2517e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = mmap(suggestedPtr, byteCount, prot, flags, fd, offset); 2527e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes if (ptr == MAP_FAILED) { 2537e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "mmap"); 2547e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes } 2557e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); 2567e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 2577e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 2587e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { 2597e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 2607e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); 2617e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 2627e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 2637e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 2647e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 2657e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); 2667e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 2677e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 2687e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { 2697e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 2707e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); 2717e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 2727e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 2730ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughesstatic jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { 2740ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes ScopedUtfChars path(env, javaPath); 2750ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes if (path.c_str() == NULL) { 2760ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return NULL; 2770ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes } 2780ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); 2790ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 2800ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes} 2810ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes 28241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughesstatic jobjectArray Posix_pipe(JNIEnv* env, jobject) { 28341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes int fds[2]; 28441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes throwIfMinusOne(env, "pipe", TEMP_FAILURE_RETRY(pipe(&fds[0]))); 28541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); 28641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (result == NULL) { 28741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 28841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 28941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes for (int i = 0; i < 2; ++i) { 29041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); 29141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (fd.get() == NULL) { 29241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 29341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 29441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes env->SetObjectArrayElement(result, i, fd.get()); 29541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (env->ExceptionCheck()) { 29641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 29741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 29841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 29941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return result; 30041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes} 30141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes 302c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_remove(JNIEnv* env, jobject, jstring javaPath) { 303c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 304c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 305c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 306c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 307c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); 308c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 309c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 310a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 311a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 312a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 313a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 314a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 315a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 316a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 317a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 318a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 319a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); 320a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 321a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 32259e4744d27231f260271dbbca406e0cc39768116Elliott Hughesstatic void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { 32359e4744d27231f260271dbbca406e0cc39768116Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 32459e4744d27231f260271dbbca406e0cc39768116Elliott Hughes throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); 32559e4744d27231f260271dbbca406e0cc39768116Elliott Hughes} 32659e4744d27231f260271dbbca406e0cc39768116Elliott Hughes 32747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) { 32847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, false); 32947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 33047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 33159fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject Posix_statfs(JNIEnv* env, jstring javaPath) { 33259fa7163774d6930a174bc038414a4b780581957Elliott Hughes ScopedUtfChars path(env, javaPath); 33359fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (path.c_str() == NULL) { 33459fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 33559fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 33659fa7163774d6930a174bc038414a4b780581957Elliott Hughes struct statfs sb; 33759fa7163774d6930a174bc038414a4b780581957Elliott Hughes int rc = TEMP_FAILURE_RETRY(statfs(path.c_str(), &sb)); 33859fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 33959fa7163774d6930a174bc038414a4b780581957Elliott Hughes throwErrnoException(env, "statfs"); 34059fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 34159fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 34259fa7163774d6930a174bc038414a4b780581957Elliott Hughes return makeStructStatFs(env, sb); 34359fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 34459fa7163774d6930a174bc038414a4b780581957Elliott Hughes 345ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) { 34652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes char buffer[BUFSIZ]; 347ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes const char* message = jniStrError(errnum, buffer, sizeof(buffer)); 348ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return env->NewStringUTF(message); 349ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 350ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 351a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 352a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 353a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 354a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 355a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 356a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 357a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 358a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 359a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 360a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); 361a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 362a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 3636fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughesstatic jlong Posix_sysconf(JNIEnv* env, jobject, jint name) { 3646fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. 3656fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes errno = 0; 3666fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes long result = sysconf(name); 3676fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes if (result == -1L && errno == EINVAL) { 3687e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "sysconf"); 3696fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes } 3706fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes return result; 3716fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes} 3726fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes 3737341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject Posix_uname(JNIEnv* env, jobject) { 3747341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes struct utsname buf; 3757341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes if (throwIfMinusOne(env, "uname", TEMP_FAILURE_RETRY(uname(&buf))) == -1) { 3767341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return NULL; 3777341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes } 3787341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return makeStructUtsname(env, buf); 3797341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes} 3807341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 381ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = { 382ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"), 383b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"), 384ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"), 38552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"), 38647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStat;"), 38759fa7163774d6930a174bc038414a4b780581957Elliott Hughes NATIVE_METHOD(Posix, fstatfs, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStatFs;"), 38852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"), 389f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"), 390ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), 3919a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"), 392e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"), 393dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"), 39447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), 3950f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes NATIVE_METHOD(Posix, mincore, "(JJ[B)V"), 396c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"), 3977e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, mlock, "(JJ)V"), 3987e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"), 3997e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, msync, "(JJI)V"), 4007e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, munlock, "(JJ)V"), 4017e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, munmap, "(JJ)V"), 4020ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), 40341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes NATIVE_METHOD(Posix, pipe, "()[Ljava/io/FileDescriptor;"), 404c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"), 405a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), 40659e4744d27231f260271dbbca406e0cc39768116Elliott Hughes NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"), 40747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), 40859fa7163774d6930a174bc038414a4b780581957Elliott Hughes NATIVE_METHOD(Posix, statfs, "(Ljava/lang/String;)Llibcore/io/StructStatFs;"), 409ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"), 410a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), 4116fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes NATIVE_METHOD(Posix, sysconf, "(I)J"), 4127341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes NATIVE_METHOD(Posix, uname, "()Llibcore/io/StructUtsname;"), 413ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}; 414ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesint register_libcore_io_Posix(JNIEnv* env) { 415ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods)); 416ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 417