+++ /dev/null
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with this
- * work for additional information regarding copyright ownership. The ASF
- * licenses this file to You under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-#include <jni.h>
-#include <fcntl.h> // posix_fadvise, constants for open
-#include <string.h> // strerror
-#include <errno.h> // errno
-#include <unistd.h> // pread
-#include <sys/mman.h> // posix_madvise, madvise
-#include <sys/types.h> // constants for open
-#include <sys/stat.h> // constants for open
-
-// java -cp .:lib/junit-4.7.jar:./build/classes/test:./build/classes/java:./build/classes/demo -Dlucene.version=2.9-dev -DtempDir=build -ea org.junit.runner.JUnitCore org.apache.lucene.index.TestDoc
-
-/*
- * Class: org_apache_lucene_store_NativePosixUtil
- * Method: posix_fadvise
- * Signature: (Ljava/io/FileDescriptor;JJI)V
- */
-extern "C"
-JNIEXPORT jint JNICALL Java_org_apache_lucene_store_NativePosixUtil_posix_1fadvise(JNIEnv *env, jclass _ignore, jobject fileDescriptor, jlong offset, jlong len, jint advice)
-{
- jfieldID field_fd;
- jmethodID const_fdesc;
-
- jclass ioex = env->FindClass("java/io/IOException");
- if (ioex == NULL) {
- return -1;
- }
-
- jclass fdesc = env->FindClass("java/io/FileDescriptor");
- if (fdesc == NULL) {
- return -2;
- }
-
- // read the int fd field
- jfieldID fdField = env->GetFieldID(fdesc, "fd", "I");
- if (fdField == NULL) {
- return -3;
- }
-
- int fd = env->GetIntField(fileDescriptor, fdField);
- //printf("fd=%d\n", fd); fflush(stdout);
-
- int osAdvice;
- switch(advice) {
-
- case 0:
- osAdvice = POSIX_FADV_NORMAL;
- break;
- case 1:
- osAdvice = POSIX_FADV_SEQUENTIAL;
- break;
- case 2:
- osAdvice = POSIX_FADV_RANDOM;
- break;
- case 3:
- osAdvice = POSIX_FADV_WILLNEED;
- break;
- case 4:
- osAdvice = POSIX_FADV_DONTNEED;
- break;
- case 5:
- osAdvice = POSIX_FADV_NOREUSE;
- break;
- }
-
- int result = posix_fadvise(fd, (off_t) offset, (off_t) len, osAdvice);
- if (result == 0) {
- // ok
- } else {
- env->ThrowNew(ioex, strerror(errno));
- return -1;
- }
-
- return 0;
-}
-
-
-/*
- * Class: org_apache_lucene_store_NativePosixUtil
- * Method: open_direct
- * Signature: (Ljava/lang/String;Z)Ljava/io/FileDescriptor;
- */
-extern "C"
-JNIEXPORT jobject JNICALL Java_org_apache_lucene_store_NativePosixUtil_open_1direct(JNIEnv *env, jclass _ignore, jstring filename, jboolean readOnly)
-{
- jfieldID field_fd;
- jmethodID const_fdesc;
- jclass class_fdesc, class_ioex;
- jobject ret;
- int fd;
- char *fname;
-
- class_ioex = env->FindClass("java/io/IOException");
- if (class_ioex == NULL) return NULL;
- class_fdesc = env->FindClass("java/io/FileDescriptor");
- if (class_fdesc == NULL) return NULL;
-
- fname = (char *) env->GetStringUTFChars(filename, NULL);
-
- if (readOnly) {
- fd = open(fname, O_RDONLY | O_DIRECT | O_NOATIME);
- } else {
- fd = open(fname, O_RDWR | O_CREAT | O_DIRECT | O_NOATIME, 0666);
- }
-
- //printf("open %s -> %d; ro %d\n", fname, fd, readOnly); fflush(stdout);
-
- env->ReleaseStringUTFChars(filename, fname);
-
- if (fd < 0) {
- // open returned an error. Throw an IOException with the error string
- env->ThrowNew(class_ioex, strerror(errno));
- return NULL;
- }
-
- // construct a new FileDescriptor
- const_fdesc = env->GetMethodID(class_fdesc, "<init>", "()V");
- if (const_fdesc == NULL) return NULL;
- ret = env->NewObject(class_fdesc, const_fdesc);
-
- // poke the "fd" field with the file descriptor
- field_fd = env->GetFieldID(class_fdesc, "fd", "I");
- if (field_fd == NULL) return NULL;
- env->SetIntField(ret, field_fd, fd);
-
- // and return it
- return ret;
-}
-
-
-/*
- * Class: org_apache_lucene_store_NativePosixUtil
- * Method: pread
- * Signature: (Ljava/io/FileDescriptor;JLjava/nio/ByteBuffer;)I
- */
-extern "C"
-JNIEXPORT jlong JNICALL Java_org_apache_lucene_store_NativePosixUtil_pread(JNIEnv *env, jclass _ignore, jobject jfd, jlong pos, jobject byteBuf)
-{
- // get int fd:
- jclass class_fdesc = env->FindClass("java/io/FileDescriptor");
- if (class_fdesc == NULL) {
- return -1;
- }
-
- jfieldID field_fd = env->GetFieldID(class_fdesc, "fd", "I");
- if (field_fd == NULL) {
- return -1;
- }
-
- const int fd = env->GetIntField(jfd, field_fd);
-
- void *p = env->GetDirectBufferAddress(byteBuf);
- if (p == NULL) {
- return -1;
- }
-
- size_t size = (size_t) env->GetDirectBufferCapacity(byteBuf);
- if (size <= 0) {
- return -1;
- }
-
- size_t numBytesRead = pread(fd, p, (size_t) size, (off_t) pos);
- if (numBytesRead == -1) {
- jclass class_ioex = env->FindClass("java/io/IOException");
- if (class_ioex == NULL) {
- return -1;
- }
-
- env->ThrowNew(class_ioex, strerror(errno));
- return -1;
- }
-
- return (jlong) numBytesRead;
-}
-
-/*
- * Class: org_apache_lucene_store_NativePosixUtil
- * Method: posix_madvise
- * Signature: (Ljava/nio/ByteBuffer;I)I
- */
-extern "C"
-JNIEXPORT jint JNICALL Java_org_apache_lucene_store_NativePosixUtil_posix_1madvise(JNIEnv *env, jclass _ignore, jobject buffer, jint advice) {
- void *p = env->GetDirectBufferAddress(buffer);
- if (p == NULL) {
- return -1;
- }
-
- size_t size = (size_t) env->GetDirectBufferCapacity(buffer);
- if (size <= 0) {
- return -1;
- }
-
- int page = getpagesize();
-
- // round start down to start of page
- long long start = (long long) p;
- start = start & (~(page-1));
-
- // round end up to start of page
- long long end = start + size;
- end = (end + page-1)&(~(page-1));
- size = (end-start);
-
- int osAdvice;
- switch(advice) {
- case 0:
- osAdvice = POSIX_MADV_NORMAL;
- break;
- case 1:
- osAdvice = POSIX_MADV_SEQUENTIAL;
- break;
- case 2:
- osAdvice = POSIX_MADV_RANDOM;
- break;
- case 3:
- osAdvice = POSIX_MADV_WILLNEED;
- break;
- case 4:
- osAdvice = POSIX_MADV_DONTNEED;
- break;
- case 5:
- return -1;
- break;
- }
-
- //printf("DO posix_madvise: %lx %d\n", p, size);fflush(stdout);
-
- if (posix_madvise((void *) start, size, osAdvice) != 0) {
- jclass class_ioex = env->FindClass("java/io/IOException");
- if (class_ioex == NULL) {
- return -1;
- }
-
- env->ThrowNew(class_ioex, strerror(errno));
- return -1;
- }
-
- return 0;
-}
-
-
-/*
- * Class: org_apache_lucene_store_NativePosixUtil
- * Method: madvise
- * Signature: (Ljava/nio/ByteBuffer;I)I
- */
-extern "C"
-JNIEXPORT jint JNICALL Java_org_apache_lucene_store_NativePosixUtil_madvise(JNIEnv *env, jclass _ignore, jobject buffer, jint advice) {
- void *p = env->GetDirectBufferAddress(buffer);
- if (p == NULL) {
- return -1;
- }
-
- size_t size = (size_t) env->GetDirectBufferCapacity(buffer);
- if (size <= 0) {
- return -1;
- }
-
- int page = getpagesize();
-
- // round start down to start of page
- long long start = (long long) p;
- start = start & (~(page-1));
-
- // round end up to start of page
- long long end = start + size;
- end = (end + page-1)&(~(page-1));
- size = (end-start);
-
- int osAdvice;
- switch(advice) {
- case 0:
- osAdvice = MADV_NORMAL;
- break;
- case 1:
- osAdvice = MADV_SEQUENTIAL;
- break;
- case 2:
- osAdvice = MADV_RANDOM;
- break;
- case 3:
- osAdvice = MADV_WILLNEED;
- break;
- case 4:
- osAdvice = MADV_DONTNEED;
- break;
- case 5:
- return -1;
- break;
- }
-
-
- //printf("DO madvise: page=%d p=0x%lx 0x%lx size=0x%lx\n", page, p, start, size);fflush(stdout);
-
- if (madvise((void *) start, size, osAdvice) != 0) {
- jclass class_ioex = env->FindClass("java/io/IOException");
- if (class_ioex == NULL) {
- return -1;
- }
-
- env->ThrowNew(class_ioex, strerror(errno));
- return -1;
- }
-
- return 0;
-}
fnp / pylucene.git / blobdiff