android_util_EventLog.cpp revision 7353cf305e9bbb2c5968358d34ead9ca9df970b1
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <fcntl.h> 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "JNIHelp.h" 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "android_runtime/AndroidRuntime.h" 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "jni.h" 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "cutils/logger.h" 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 246916089e838662b41d902cd9a0d2560b04633ef9Dan Egnor// The size of the tag number comes out of the payload size. 256916089e838662b41d902cd9a0d2560b04633ef9Dan Egnor#define MAX_EVENT_PAYLOAD (LOGGER_ENTRY_MAX_PAYLOAD - sizeof(int32_t)) 266916089e838662b41d902cd9a0d2560b04633ef9Dan Egnor 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectnamespace android { 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jclass gCollectionClass; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jmethodID gCollectionAddID; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jclass gEventClass; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jmethodID gEventInitID; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jclass gIntegerClass; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jfieldID gIntegerValueID; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jclass gLongClass; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jfieldID gLongValueID; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jclass gStringClass; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * In class android.util.EventLog: 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * static native int writeEvent(int tag, int value) 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jint android_util_EventLog_writeEvent_Integer(JNIEnv* env, jobject clazz, 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint tag, jint value) 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return android_btWriteLog(tag, EVENT_TYPE_INT, &value, sizeof(value)); 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * In class android.util.EventLog: 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * static native int writeEvent(long tag, long value) 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5795ff2401a9c6f0252aeedfa27ba0a9a5f0d7f55eJim Millerstatic jint android_util_EventLog_writeEvent_Long(JNIEnv* env, jobject clazz, 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint tag, jlong value) 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return android_btWriteLog(tag, EVENT_TYPE_LONG, &value, sizeof(value)); 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * In class android.util.EventLog: 6562136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor * static native int writeEvent(int tag, String value) 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6762136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnorstatic jint android_util_EventLog_writeEvent_String(JNIEnv* env, jobject clazz, 6862136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor jint tag, jstring value) { 696916089e838662b41d902cd9a0d2560b04633ef9Dan Egnor uint8_t buf[MAX_EVENT_PAYLOAD]; 7062136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor 7162136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor // Don't throw NPE -- I feel like it's sort of mean for a logging function 7262136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor // to be all crashy if you pass in NULL -- but make the NULL value explicit. 7362136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor const char *str = value != NULL ? env->GetStringUTFChars(value, NULL) : "NULL"; 747353cf305e9bbb2c5968358d34ead9ca9df970b1Nick Kralevich uint32_t len = strlen(str); 757353cf305e9bbb2c5968358d34ead9ca9df970b1Nick Kralevich size_t max = sizeof(buf) - sizeof(len) - 2; // Type byte, final newline 7662136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor if (len > max) len = max; 7762136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor 7862136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor buf[0] = EVENT_TYPE_STRING; 7962136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor memcpy(&buf[1], &len, sizeof(len)); 8062136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor memcpy(&buf[1 + sizeof(len)], str, len); 8162136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor buf[1 + sizeof(len) + len] = '\n'; 8262136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor 8362136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor if (value != NULL) env->ReleaseStringUTFChars(value, str); 8462136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor return android_bWriteLog(tag, buf, 2 + sizeof(len) + len); 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * In class android.util.EventLog: 8962136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor * static native int writeEvent(long tag, Object... value) 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9162136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnorstatic jint android_util_EventLog_writeEvent_Array(JNIEnv* env, jobject clazz, 9262136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor jint tag, jobjectArray value) { 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (value == NULL) { 9462136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor return android_util_EventLog_writeEvent_String(env, clazz, tag, NULL); 9562136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor } 9662136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor 976916089e838662b41d902cd9a0d2560b04633ef9Dan Egnor uint8_t buf[MAX_EVENT_PAYLOAD]; 9862136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor const size_t max = sizeof(buf) - 1; // leave room for final newline 9962136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor size_t pos = 2; // Save room for type tag & array count 10062136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor 10162136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor jsize copied = 0, num = env->GetArrayLength(value); 1026916089e838662b41d902cd9a0d2560b04633ef9Dan Egnor for (; copied < num && copied < 255; ++copied) { 10362136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor jobject item = env->GetObjectArrayElement(value, copied); 10462136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor if (item == NULL || env->IsInstanceOf(item, gStringClass)) { 10562136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor if (pos + 1 + sizeof(jint) > max) break; 10662136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor const char *str = item != NULL ? env->GetStringUTFChars((jstring) item, NULL) : "NULL"; 10762136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor jint len = strlen(str); 10862136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor if (pos + 1 + sizeof(len) + len > max) len = max - pos - 1 - sizeof(len); 10962136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor buf[pos++] = EVENT_TYPE_STRING; 11062136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor memcpy(&buf[pos], &len, sizeof(len)); 11162136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor memcpy(&buf[pos + sizeof(len)], str, len); 11262136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor pos += sizeof(len) + len; 11362136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor if (item != NULL) env->ReleaseStringUTFChars((jstring) item, str); 11462136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor } else if (env->IsInstanceOf(item, gIntegerClass)) { 11562136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor jint intVal = env->GetIntField(item, gIntegerValueID); 11662136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor if (pos + 1 + sizeof(intVal) > max) break; 11762136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor buf[pos++] = EVENT_TYPE_INT; 11862136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor memcpy(&buf[pos], &intVal, sizeof(intVal)); 11962136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor pos += sizeof(intVal); 12062136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor } else if (env->IsInstanceOf(item, gLongClass)) { 12162136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor jlong longVal = env->GetLongField(item, gLongValueID); 12262136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor if (pos + 1 + sizeof(longVal) > max) break; 12362136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor buf[pos++] = EVENT_TYPE_LONG; 12462136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor memcpy(&buf[pos], &longVal, sizeof(longVal)); 12562136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor pos += sizeof(longVal); 12662136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor } else { 12762136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor jniThrowException(env, 12862136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor "java/lang/IllegalArgumentException", 12962136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor "Invalid payload item type"); 13062136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor return -1; 13162136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor } 13262136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor env->DeleteLocalRef(item); 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13562136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor buf[0] = EVENT_TYPE_LIST; 13662136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor buf[1] = copied; 13762136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor buf[pos++] = '\n'; 13862136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor return android_bWriteLog(tag, buf, pos); 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * In class android.util.EventLog: 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * static native void readEvents(int[] tags, Collection<Event> output) 14495ff2401a9c6f0252aeedfa27ba0a9a5f0d7f55eJim Miller * 14595ff2401a9c6f0252aeedfa27ba0a9a5f0d7f55eJim Miller * Reads events from the event log, typically /dev/log/events 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_util_EventLog_readEvents(JNIEnv* env, jobject clazz, 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jintArray tags, 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobject out) { 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tags == NULL || out == NULL) { 15169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fd = open("/dev/" LOGGER_LOG_EVENTS, O_RDONLY | O_NONBLOCK); 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fd < 0) { 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowIOException(env, errno); 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jsize tagLength = env->GetArrayLength(tags); 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint *tagValues = env->GetIntArrayElements(tags, NULL); 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint8_t buf[LOGGER_ENTRY_MAX_LEN]; 16578158db51029e7dbe160e60af0deb7594bec051dDan Egnor struct timeval timeout = {0, 0}; 16678158db51029e7dbe160e60af0deb7594bec051dDan Egnor fd_set readset; 16778158db51029e7dbe160e60af0deb7594bec051dDan Egnor FD_ZERO(&readset); 16878158db51029e7dbe160e60af0deb7594bec051dDan Egnor 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (;;) { 17078158db51029e7dbe160e60af0deb7594bec051dDan Egnor // Use a short select() to try to avoid problems hanging on read(). 17178158db51029e7dbe160e60af0deb7594bec051dDan Egnor // This means we block for 5ms at the end of the log -- oh well. 17278158db51029e7dbe160e60af0deb7594bec051dDan Egnor timeout.tv_usec = 5000; 17378158db51029e7dbe160e60af0deb7594bec051dDan Egnor FD_SET(fd, &readset); 17478158db51029e7dbe160e60af0deb7594bec051dDan Egnor int r = select(fd + 1, &readset, NULL, NULL, &timeout); 17578158db51029e7dbe160e60af0deb7594bec051dDan Egnor if (r == 0) { 17678158db51029e7dbe160e60af0deb7594bec051dDan Egnor break; // no more events 17778158db51029e7dbe160e60af0deb7594bec051dDan Egnor } else if (r < 0 && errno == EINTR) { 17878158db51029e7dbe160e60af0deb7594bec051dDan Egnor continue; // interrupted by signal, try again 17978158db51029e7dbe160e60af0deb7594bec051dDan Egnor } else if (r < 0) { 18078158db51029e7dbe160e60af0deb7594bec051dDan Egnor jniThrowIOException(env, errno); // Will throw on return 18178158db51029e7dbe160e60af0deb7594bec051dDan Egnor break; 18278158db51029e7dbe160e60af0deb7594bec051dDan Egnor } 18378158db51029e7dbe160e60af0deb7594bec051dDan Egnor 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int len = read(fd, buf, sizeof(buf)); 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (len == 0 || (len < 0 && errno == EAGAIN)) { 18678158db51029e7dbe160e60af0deb7594bec051dDan Egnor break; // no more events 18778158db51029e7dbe160e60af0deb7594bec051dDan Egnor } else if (len < 0 && errno == EINTR) { 18878158db51029e7dbe160e60af0deb7594bec051dDan Egnor continue; // interrupted by signal, try again 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (len < 0) { 19078158db51029e7dbe160e60af0deb7594bec051dDan Egnor jniThrowIOException(env, errno); // Will throw on return 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if ((size_t) len < sizeof(logger_entry) + sizeof(int32_t)) { 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/io/IOException", "Event too short"); 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project logger_entry* entry = (logger_entry*) buf; 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int32_t tag = * (int32_t*) (buf + sizeof(*entry)); 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int found = 0; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; !found && i < tagLength; ++i) { 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project found = (tag == tagValues[i]); 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (found) { 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jsize len = sizeof(*entry) + entry->len; 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jbyteArray array = env->NewByteArray(len); 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (array == NULL) break; 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jbyte *bytes = env->GetByteArrayElements(array, NULL); 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project memcpy(bytes, buf, len); 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseByteArrayElements(array, bytes, 0); 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobject event = env->NewObject(gEventClass, gEventInitID, array); 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (event == NULL) break; 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->CallBooleanMethod(out, gCollectionAddID, event); 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->DeleteLocalRef(event); 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->DeleteLocalRef(array); 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project close(fd); 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseIntArrayElements(tags, tagValues, 0); 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22795ff2401a9c6f0252aeedfa27ba0a9a5f0d7f55eJim Miller/* 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * JNI registration. 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic JNINativeMethod gRegisterMethods[] = { 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* name, signature, funcPtr */ 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "writeEvent", "(II)I", (void*) android_util_EventLog_writeEvent_Integer }, 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "writeEvent", "(IJ)I", (void*) android_util_EventLog_writeEvent_Long }, 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "writeEvent", 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "(ILjava/lang/String;)I", 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*) android_util_EventLog_writeEvent_String 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "writeEvent", 23962136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor "(I[Ljava/lang/Object;)I", 24062136d3e1c1262fc31a1f77f6d6acbd75e5ea81dDan Egnor (void*) android_util_EventLog_writeEvent_Array 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "readEvents", 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "([ILjava/util/Collection;)V", 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*) android_util_EventLog_readEvents 24595ff2401a9c6f0252aeedfa27ba0a9a5f0d7f55eJim Miller }, 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic struct { const char *name; jclass *clazz; } gClasses[] = { 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "android/util/EventLog$Event", &gEventClass }, 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "java/lang/Integer", &gIntegerClass }, 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "java/lang/Long", &gLongClass }, 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "java/lang/String", &gStringClass }, 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "java/util/Collection", &gCollectionClass }, 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic struct { jclass *c; const char *name, *ft; jfieldID *id; } gFields[] = { 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { &gIntegerClass, "value", "I", &gIntegerValueID }, 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { &gLongClass, "value", "J", &gLongValueID }, 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic struct { jclass *c; const char *name, *mt; jmethodID *id; } gMethods[] = { 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { &gEventClass, "<init>", "([B)V", &gEventInitID }, 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { &gCollectionClass, "add", "(Ljava/lang/Object;)Z", &gCollectionAddID }, 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint register_android_util_EventLog(JNIEnv* env) { 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < NELEM(gClasses); ++i) { 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass clazz = env->FindClass(gClasses[i].name); 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clazz == NULL) { 2703762c311729fe9f3af085c14c5c1fb471d994c03Steve Block ALOGE("Can't find class: %s\n", gClasses[i].name); 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *gClasses[i].clazz = (jclass) env->NewGlobalRef(clazz); 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < NELEM(gFields); ++i) { 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *gFields[i].id = env->GetFieldID( 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *gFields[i].c, gFields[i].name, gFields[i].ft); 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*gFields[i].id == NULL) { 2803762c311729fe9f3af085c14c5c1fb471d994c03Steve Block ALOGE("Can't find field: %s\n", gFields[i].name); 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < NELEM(gMethods); ++i) { 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *gMethods[i].id = env->GetMethodID( 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *gMethods[i].c, gMethods[i].name, gMethods[i].mt); 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*gMethods[i].id == NULL) { 2893762c311729fe9f3af085c14c5c1fb471d994c03Steve Block ALOGE("Can't find method: %s\n", gMethods[i].name); 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AndroidRuntime::registerNativeMethods( 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env, 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "android/util/EventLog", 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gRegisterMethods, NELEM(gRegisterMethods)); 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; // namespace android 301