ltt/jni_interface.c

   1 /* This file is part of the Linux Trace Toolkit viewer
   2  * Copyright (C) 2010 William Bourque
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License Version 2.1 as published by the Free Software Foundation.
   7  *
   8  * This library is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * Lesser General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public
  14  * License along with this library; if not, write to the
  15  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  16  * Boston, MA 02111-1307, USA.
  17  */
  18
  19 /* Important to get consistent size_t type */
  20 #define _FILE_OFFSET_BITS 64
  21
  22 #include <jni.h>
  23
  24 #include <ltt/trace.h>
  25 #include <ltt/time.h>
  26 #include <ltt/marker.h>
  27 #include <glib.h>
  28
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <stdint.h>
  33
  34 /*
  35 ***FIXME***
  36 ***HACK***
  37  We've got hell of a problem passing "unsigned int64" to java, as there is no equivalent type
  38    The closer we can use is "long" which is signed, so only 32 (or 63?) bits are valid
  39    Plus, even if we are within the "32 bits" capacity, java sometime screw itself trying to convert "unsigned 64 -> signed 64"
  40    This happen especially often when RETURNING a jlong
  41    So when returning a jlong, we should convert it like this : "unsigned 64"->"signed 64"->jlong
  42 */
  43 #define CONVERT_UINT64_TO_JLONG(n) (jlong)(gint64)(n)
  44 #define CONVERT_INT64_TO_JLONG(n) (jlong)(gint64)(n)
  45
  46 /* To ease calcul involving nano */
  47 #define BILLION 1000000000
  48
  49
  50 #if __WORDSIZE == 64
  51         #define CONVERT_JLONG_TO_PTR(p) (p)
  52         #define CONVERT_PTR_TO_JLONG(p) (jlong)(p)
  53         /* Define the "gint" type we should use for pointer. */
  54         #define GINT_TYPE_FOR_PTR gint64
  55 #else
  56         /* Conversion to int first to save warning */
  57         #define CONVERT_JLONG_TO_PTR(p) (int)(p)
  58         #define CONVERT_PTR_TO_JLONG(p) (jlong)(int)(p)
  59         /* Define the "gint" type we should use for pointer. */
  60         #define GINT_TYPE_FOR_PTR gint32
  61 #endif
  62
  63 /* Structure to encapsulate java_data to pass as arguments */
  64 struct java_calling_data
  65 {
  66     JNIEnv *env;
  67     jobject jobj;
  68 };
  69
  70 /*  ***TODO***
  71  All these struct are used to call g_datalist_foreach()
  72  Find a better way! This is ugly!
  73 */
  74 struct addMarkersArgs
  75 {
  76     struct java_calling_data *java_args;
  77     struct marker_data *mdata;
  78 };
  79
  80 struct saveTimeArgs
  81 {
  82         GArray *saveTimeArray;
  83 };
  84
  85 struct saveTimeAndTracefile
  86 {
  87         LttTime time;
  88         LttTracefile *tracefile;
  89 };
  90
  91 /*
  92 ### COMMON Methods ###
  93 #
  94 Empty method to turn off the debug (debug waste time while printing) */
  95 void ignore_and_drop_message(const gchar *log_domain, GLogLevelFlags log_level, const gchar *message, gpointer user_data) {
  96 }
  97
  98
  99 /* JNI method to call printf from the java side */
 100 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_Jni_1C_1Common_ltt_1printC(JNIEnv *env, jobject jobj, jstring new_string) {
 101         const char *c_msg = (*env)->GetStringUTFChars(env, new_string, 0);
 102
 103         printf("%s", c_msg );
 104
 105         (*env)->ReleaseStringUTFChars(env, new_string, c_msg);
 106 }
 107
 108 /* Method to obtain a trace version number from its path */
 109 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_factory_JniTraceVersion_ltt_1getTraceVersion(JNIEnv *env, jobject jobj, jstring tracepath) {
 110
 111         const gchar *c_pathname = (*env)->GetStringUTFChars(env, tracepath, 0);
 112         jint tmpMajorNumber = 0;
 113         jint tmpMinorNumber = 0;
 114
 115         jclass accessClass = (*env)->GetObjectClass(env, jobj);
 116         jmethodID accessFunction = (*env)->GetMethodID(env, accessClass, "setTraceVersionFromC", "(II)V");
 117
 118         struct LttTraceVersion version_number;
 119
 120         if ( ltt_get_trace_version(c_pathname, &version_number) >= 0) {
 121                 tmpMajorNumber = version_number.ltt_major_version;
 122                 tmpMinorNumber = version_number.ltt_minor_version;
 123         }
 124
 125         (*env)->CallVoidMethod(env, jobj, accessFunction, tmpMajorNumber, tmpMinorNumber );
 126 }
 127 /*
 128 #
 129 #### */
 130
 131
 132 /*
 133 ### TRACE methods ###
 134 #
 135 JNI mapping of   < LttTrace *ltt_trace_open(const gchar *pathname)  > (trace.h) */
 136 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1openTrace(JNIEnv *env, jobject jobj, jstring pathname, jboolean show_debug) {
 137
 138         if ( !show_debug) {
 139                 /* Make sure we don't use any debug (speed up the read) */
 140                 g_log_set_handler(NULL, G_LOG_LEVEL_INFO, ignore_and_drop_message, NULL);
 141                 g_log_set_handler(NULL, G_LOG_LEVEL_DEBUG, ignore_and_drop_message, NULL);
 142         }
 143
 144         const char *c_pathname = (*env)->GetStringUTFChars(env, pathname, 0);
 145         LttTrace *newPtr = ltt_trace_open( c_pathname );
 146
 147         (*env)->ReleaseStringUTFChars(env, pathname, c_pathname);
 148
 149         return CONVERT_PTR_TO_JLONG(newPtr);
 150 }
 151
 152 /* JNI mapping of  < void ltt_trace_close(LttTrace *t)  > (trace.h) */
 153 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1closeTrace(JNIEnv *env, jobject jobj, jlong trace_ptr){
 154
 155         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 156
 157         ltt_trace_close(newPtr);
 158 }
 159
 160 /* Get the tracepath */
 161 JNIEXPORT jstring JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getTracepath(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 162         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 163
 164         return (*env)->NewStringUTF(env, g_quark_to_string( newPtr->pathname) );
 165 }
 166
 167
 168 /* Get of num_cpu */
 169 JNIEXPORT jint JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getCpuNumber(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 170         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 171
 172         return (jint)newPtr->num_cpu;
 173 }
 174
 175 /* Get of arch_type */
 176 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getArchType(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 177         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 178
 179         return (jlong)newPtr->arch_type;
 180 }
 181
 182 /* Get of arch_variant */
 183 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getArchVariant(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 184         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 185
 186         return (jlong)newPtr->arch_variant;
 187 }
 188
 189 /* Get of arch_size */
 190 JNIEXPORT jshort JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getArchSize(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 191         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 192
 193         return (jshort)newPtr->arch_size;
 194 }
 195
 196 /* Get of ltt_major_version */
 197 JNIEXPORT jshort JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getLttMajorVersion(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 198         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 199
 200         return (jshort)newPtr->ltt_major_version;
 201 }
 202
 203 /* Get of ltt_minor_version */
 204 JNIEXPORT jshort JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getLttMinorVersion(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 205         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 206
 207         return (jshort)newPtr->ltt_minor_version;
 208 }
 209
 210 /* Get of flight_recorder */
 211 JNIEXPORT jshort JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getFlightRecorder(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 212         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 213
 214         return (jshort)newPtr->flight_recorder;
 215 }
 216
 217 /* Get of freq_scale */
 218 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getFreqScale(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 219         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 220
 221         return (jlong)newPtr->freq_scale;
 222 }
 223
 224 /* Get of start_freq */
 225 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getStartFreq(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 226         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 227
 228         return CONVERT_UINT64_TO_JLONG(newPtr->start_freq);
 229 }
 230
 231 /* Get of start_tsc */
 232 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getStartTimestampCurrentCounter(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 233         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 234
 235         return CONVERT_UINT64_TO_JLONG(newPtr->start_tsc);
 236 }
 237
 238 /* Get of start_monotonic */
 239 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getStartMonotonic(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 240         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 241
 242         return CONVERT_UINT64_TO_JLONG(newPtr->start_monotonic);
 243 }
 244
 245 /* Access to start_time */
 246 /* Note that we are calling the setTimeFromC function in Jaf_Time from here */
 247 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1feedStartTime(JNIEnv *env, jobject jobj, jlong trace_ptr, jobject time_jobj) {
 248         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 249
 250         jclass accessClass = (*env)->GetObjectClass(env, time_jobj);
 251         jmethodID accessFunction = (*env)->GetMethodID(env, accessClass, "setTimeFromC", "(J)V");
 252
 253         jlong fullTime = (CONVERT_UINT64_TO_JLONG(newPtr->start_time.tv_sec)*BILLION) + CONVERT_UINT64_TO_JLONG(newPtr->start_time.tv_nsec);
 254
 255         (*env)->CallVoidMethod(env, time_jobj, accessFunction, fullTime );
 256 }
 257
 258 /* Access to start_time_from_tsc */
 259 /* Note that we are calling the setTimeFromC function in Jaf_Time from here */
 260 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1feedStartTimeFromTimestampCurrentCounter(JNIEnv *env, jobject jobj, jlong trace_ptr, jobject time_jobj) {
 261         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 262
 263         jclass accessClass = (*env)->GetObjectClass(env, time_jobj);
 264         jmethodID accessFunction = (*env)->GetMethodID(env, accessClass, "setTimeFromC", "(J)V");
 265
 266         jlong fullTime = (CONVERT_UINT64_TO_JLONG(newPtr->start_time_from_tsc.tv_sec)*BILLION) + CONVERT_UINT64_TO_JLONG(newPtr->start_time_from_tsc.tv_nsec);
 267
 268         (*env)->CallVoidMethod(env, time_jobj, accessFunction, fullTime);
 269 }
 270
 271
 272 /* g_list_data function for the "for_each" call in Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1getAllTracefiles  */
 273 void g_datalist_foreach_addTracefilesOfTrace(GQuark name, gpointer data, gpointer user_data) {
 274         struct java_calling_data *args = (struct java_calling_data*)user_data;
 275
 276         jclass accessClass = (*args->env)->GetObjectClass(args->env, args->jobj);
 277         jmethodID accessFunction = (*args->env)->GetMethodID(args->env, accessClass, "addTracefileFromC", "(Ljava/lang/String;J)V");
 278
 279         GArray *tracefile_array = (GArray*)data;
 280         LttTracefile *tracefile;
 281         jlong newPtr;
 282
 283         unsigned int i;
 284         for (i=0; i<tracefile_array->len; i++) {
 285                 tracefile = &g_array_index(tracefile_array, LttTracefile, i);
 286
 287                 newPtr = CONVERT_PTR_TO_JLONG(tracefile);
 288
 289                 (*args->env)->CallVoidMethod(args->env, args->jobj, accessFunction, (*args->env)->NewStringUTF(args->env, g_quark_to_string(tracefile->name) ), newPtr );
 290         }
 291 }
 292
 293 /* Function to fill up the java map with the event type found in tracefile (the name) */
 294 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1feedAllTracefiles(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 295         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 296
 297         struct java_calling_data args = { env, jobj };
 298
 299         g_datalist_foreach(&newPtr->tracefiles, &g_datalist_foreach_addTracefilesOfTrace, &args);
 300 }
 301
 302
 303 /* g_list_data function for the "for_each" call in Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1feedTracefileTimeRange */
 304 /*      used to save the current timestamp for each tracefile */
 305 void g_datalist_foreach_saveTracefilesTime(GQuark name, gpointer data, gpointer user_data) {
 306         struct saveTimeArgs *args = (struct saveTimeArgs*)user_data;
 307
 308         GArray *tracefile_array = (GArray*)data;
 309         GArray *save_array = args->saveTimeArray;
 310
 311         LttTracefile *tracefile;
 312         struct saveTimeAndTracefile *savedData;
 313
 314         unsigned int i;
 315         for (i=0; i<tracefile_array->len; i++) {
 316                 tracefile = &g_array_index(tracefile_array, LttTracefile, i);
 317
 318                 /* Allocate a new LttTime for each tracefile (so it won't change if the tracefile seek somewhere else) */
 319                 savedData = (struct saveTimeAndTracefile*)malloc( sizeof(struct saveTimeAndTracefile) );
 320                 savedData->time.tv_sec = tracefile->event.event_time.tv_sec;
 321                 savedData->time.tv_nsec = tracefile->event.event_time.tv_nsec;
 322                 savedData->tracefile = tracefile;
 323                 /* Append the saved data to the array */
 324                 g_array_append_val(save_array, savedData);
 325         }
 326 }
 327
 328
 329 /* Obtain the range of the trace (i.e. "start time" and "end time") */
 330 /* Note : This function, unlike ltt_trace_time_span_get, is assured to return all tracefiles to their correct position after operation */
 331 /* NOTE : this method is quite heavy to use!!! */
 332 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1feedTracefileTimeRange(JNIEnv *env, jobject jobj, jlong trace_ptr, jobject jstart_time, jobject jend_time) {
 333         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 334
 335         /* Allocate ourself a new array to save the data in */
 336         GArray *savedDataArray = g_array_new(FALSE, FALSE, sizeof(struct saveTimeAndTracefile*) );
 337         struct saveTimeArgs args = { savedDataArray };
 338         /* Call g_datalist_foreach_saveTracefilesTime for each element in the GData to save the time */
 339         g_datalist_foreach(&newPtr->tracefiles, &g_datalist_foreach_saveTracefilesTime, &args);
 340
 341         /* Call to ltt_trace_time_span_get to find the current start and end time */
 342         /* NOTE : This WILL change the current block of the tracefile (i.e. its timestamp) */
 343         LttTime tmpStartTime = { 0, 0 };
 344         LttTime tmpEndTime = { 0, 0 };
 345         ltt_trace_time_span_get(newPtr, &tmpStartTime, &tmpEndTime);
 346
 347         /* Seek back to the correct time for each tracefile and free the allocated memory */
 348         struct saveTimeAndTracefile *savedData;
 349         unsigned int i;
 350         for (i=0; i<savedDataArray->len; i++) {
 351                 savedData = g_array_index(savedDataArray, struct saveTimeAndTracefile*, i);
 352                 /* Seek back to the correct time */
 353                 /* Some time will not be consistent here (i.e. unitialized data) */
 354                 /*      but the seek should work just fine with that */
 355                 ltt_tracefile_seek_time(savedData->tracefile, savedData->time);
 356
 357                 /* Free the memory allocated for this saveTimeAndTracefile entry */
 358                 free( savedData );
 359         }
 360         /* Free the memory allocated for the GArray */
 361         g_array_free(savedDataArray, TRUE);
 362
 363         /* Send the start and end time back to the java */
 364         /* We do it last to make sure a problem won't leave us with unfred memory */
 365         jclass startAccessClass = (*env)->GetObjectClass(env, jstart_time);
 366         jmethodID startAccessFunction = (*env)->GetMethodID(env, startAccessClass, "setTimeFromC", "(J)V");
 367         jlong startTime = (CONVERT_UINT64_TO_JLONG(tmpStartTime.tv_sec)*BILLION) + CONVERT_UINT64_TO_JLONG(tmpStartTime.tv_nsec);
 368         (*env)->CallVoidMethod(env, jstart_time, startAccessFunction, startTime);
 369
 370         jclass endAccessClass = (*env)->GetObjectClass(env, jend_time);
 371         jmethodID endAccessFunction = (*env)->GetMethodID(env, endAccessClass, "setTimeFromC", "(J)V");
 372         jlong endTime = (CONVERT_UINT64_TO_JLONG(tmpEndTime.tv_sec)*BILLION) + CONVERT_UINT64_TO_JLONG(tmpEndTime.tv_nsec);
 373         (*env)->CallVoidMethod(env, jend_time, endAccessFunction, endTime);
 374 }
 375
 376 /* Function to print the content of a trace */
 377 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTrace_ltt_1printTrace(JNIEnv *env, jobject jobj, jlong trace_ptr) {
 378
 379         LttTrace *newPtr = (LttTrace*)CONVERT_JLONG_TO_PTR(trace_ptr);
 380
 381         printf("pathname                : %s\n"     ,g_quark_to_string(newPtr->pathname) );
 382         printf("num_cpu                 : %u\n"     ,(unsigned int)(newPtr->num_cpu) );
 383         printf("arch_type               : %u\n"     ,(unsigned int)(newPtr->arch_type) );
 384         printf("arch_variant            : %u\n"     ,(unsigned int)(newPtr->arch_variant) );
 385         printf("arch_size               : %u\n"     ,(unsigned short)(newPtr->arch_size) );
 386         printf("ltt_major_version       : %u\n"     ,(unsigned short)(newPtr->ltt_major_version) );
 387         printf("ltt_minor_version       : %u\n"     ,(unsigned short)(newPtr->ltt_minor_version) );
 388         printf("flight_recorder         : %u\n"     ,(unsigned short)(newPtr->flight_recorder) );
 389         printf("freq_scale              : %u\n"     ,(unsigned int)(newPtr->freq_scale) );
 390         printf("start_freq              : %lu\n"    ,(long unsigned int)(newPtr->start_freq) );
 391         printf("start_tsc               : %lu\n"    ,(long unsigned int)(newPtr->start_tsc) );
 392         printf("start_monotonic         : %lu\n"    ,(long unsigned int)(newPtr->start_monotonic) );
 393         printf("start_time ptr          : %p\n"     ,&newPtr->start_time);
 394         printf("   tv_sec               : %lu\n"    ,(long unsigned int)(newPtr->start_time.tv_sec) );
 395         printf("   tv_nsec              : %lu\n"    ,(long unsigned int)(newPtr->start_time.tv_nsec) );
 396         printf("start_time_from_tsc ptr : %p\n"     ,&newPtr->start_time_from_tsc);
 397         printf("   tv_sec               : %lu\n"    ,(long unsigned int)(newPtr->start_time_from_tsc.tv_sec) );
 398         printf("   tv_nsec              : %lu\n"    ,(long unsigned int)(newPtr->start_time_from_tsc.tv_nsec) );
 399         printf("tracefiles ptr          : %p\n"     ,newPtr->tracefiles);
 400         printf("\n");
 401 }
 402 /*
 403 #
 404 ### */
 405
 406
 407
 408
 409 /*
 410 ### TRACEFILE methods ###
 411 # */
 412
 413 /* Get of cpu_online */
 414 JNIEXPORT jboolean JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getIsCpuOnline(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 415         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 416
 417         return (jboolean)newPtr->cpu_online;
 418 }
 419
 420 /* Get of long_name */
 421 JNIEXPORT jstring JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getTracefilepath(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 422         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 423
 424         return (*env)->NewStringUTF(env, g_quark_to_string(newPtr->long_name) );
 425 }
 426
 427 /* Get of name */
 428 JNIEXPORT jstring JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getTracefilename(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 429         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 430
 431         return (*env)->NewStringUTF(env, g_quark_to_string(newPtr->name) );
 432 }
 433
 434 /* Get of cpu_num */
 435 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getCpuNumber(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 436         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 437
 438         return (jlong)newPtr->cpu_num;
 439 }
 440
 441 /* Get of tid */
 442 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getTid(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 443         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 444
 445         return (jlong)newPtr->tid;
 446 }
 447
 448 /* Get of pgid */
 449 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getPgid(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 450         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 451
 452         return (jlong)newPtr->pgid;
 453 }
 454
 455 /* Get of creation */
 456 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getCreation(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 457         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 458
 459         return CONVERT_UINT64_TO_JLONG(newPtr->creation);
 460 }
 461
 462 /* Get of trace */
 463 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getTracePtr(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 464         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 465
 466         return CONVERT_PTR_TO_JLONG(newPtr->trace);
 467 }
 468
 469 /* Get of mdata */
 470 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getMarkerDataPtr(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 471         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 472
 473         return CONVERT_PTR_TO_JLONG(newPtr->mdata);
 474 }
 475
 476 /* Get of fd */
 477 JNIEXPORT jint JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getCFileDescriptor(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 478         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 479
 480         return (jint)newPtr->fd;
 481 }
 482
 483 /* Get of file_size */
 484 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getFileSize(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 485         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 486
 487         return CONVERT_UINT64_TO_JLONG(newPtr->file_size);
 488 }
 489
 490 /* Get of num_blocks */
 491 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getBlockNumber(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 492         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 493
 494         return (jlong)newPtr->num_blocks;
 495 }
 496
 497 /* Get of reverse_bo */
 498 JNIEXPORT jboolean JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getIsBytesOrderReversed(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 499         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 500
 501         return (jboolean)newPtr->reverse_bo;
 502 }
 503
 504 /* Get of float_word_order */
 505 JNIEXPORT jboolean JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getIsFloatWordOrdered(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 506         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 507
 508         return (jboolean)newPtr->float_word_order;
 509 }
 510
 511 /* Get of alignment */
 512 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getAlignement(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 513         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 514
 515         return CONVERT_UINT64_TO_JLONG(newPtr->alignment);
 516 }
 517
 518 /* Get of buffer_header_size */
 519 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getBufferHeaderSize(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 520         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 521
 522         return CONVERT_UINT64_TO_JLONG(newPtr->buffer_header_size);
 523 }
 524
 525 /* Get of tscbits */
 526 JNIEXPORT jint JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getBitsOfCurrentTimestampCounter(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 527         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 528
 529         return (jint)newPtr->tscbits;
 530 }
 531
 532 /* Get of eventbits */
 533 JNIEXPORT jint JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getBitsOfEvent(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 534         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 535
 536         return (jint)newPtr->eventbits;
 537 }
 538
 539 /* Get of tsc_mask */
 540 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getCurrentTimestampCounterMask(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 541         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 542
 543         return CONVERT_UINT64_TO_JLONG(newPtr->tsc_mask);
 544 }
 545
 546 /* Get of tsc_mask_next_bit */
 547 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getCurrentTimestampCounterMaskNextBit(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 548         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 549
 550         return CONVERT_UINT64_TO_JLONG(newPtr->tsc_mask_next_bit);
 551 }
 552
 553 /* Get of events_lost */
 554 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getEventsLost(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 555         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 556
 557         return (jlong)newPtr->events_lost;
 558 }
 559
 560 /* Get of subbuf_corrupt */
 561 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getSubBufferCorrupt(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 562         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 563
 564         return (jlong)newPtr->subbuf_corrupt;
 565 }
 566
 567 /* Get of event */
 568 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getEventPtr(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 569         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 570
 571         return CONVERT_PTR_TO_JLONG(&newPtr->event);
 572 }
 573
 574 /* Get of buffer */
 575 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getBufferPtr(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 576         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 577
 578         return CONVERT_PTR_TO_JLONG(&newPtr->buffer);
 579 }
 580
 581 /* Get of buffer size */
 582 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getBufferSize(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 583         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 584
 585         return (jlong)newPtr->buffer.size;
 586 }
 587
 588
 589 /* g_list_data function for the "for_each" call in Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1getAllMarkers */
 590 void g_hash_table_foreach_addMarkersOfTracefile(gpointer key, gpointer data, gpointer user_data) {
 591         struct addMarkersArgs *args = (struct addMarkersArgs*)user_data;
 592         struct java_calling_data *jargs = (struct java_calling_data*)args->java_args;
 593
 594         jclass accessClass = (*jargs->env)->GetObjectClass(jargs->env, jargs->jobj);
 595         jmethodID accessFunction = (*jargs->env)->GetMethodID(jargs->env, accessClass, "addMarkersFromC", "(IJ)V");
 596
 597         unsigned long marker_id = (unsigned long)data;
 598
 599         /* The hash table store an ID... we will use the ID to access the array. */
 600         GArray *marker = args->mdata->markers;
 601         struct marker_info *newPtr = &g_array_index(marker, struct marker_info, marker_id);
 602
 603         (*jargs->env)->CallVoidMethod(jargs->env, jargs->jobj, accessFunction, marker_id, CONVERT_PTR_TO_JLONG(newPtr) );
 604 }
 605
 606 /* Function to fill up the java map with the event type found in tracefile (the name) */
 607 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1feedAllMarkers(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 608         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 609
 610         /* ***TODO***
 611         Find a better way! This is ugly! */
 612         struct java_calling_data java_args = { env, jobj };
 613         struct addMarkersArgs args = { &java_args, newPtr->mdata };
 614
 615         g_hash_table_foreach( newPtr->mdata->markers_hash, &g_hash_table_foreach_addMarkersOfTracefile,  &args);
 616 }
 617
 618
 619 /* Function to print the content of a tracefile */
 620 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniTracefile_ltt_1printTracefile(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 621
 622         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 623         printf("cpu_online              : %i\n"     ,(int)newPtr->cpu_online);
 624         printf("long_name               : %s\n"     ,g_quark_to_string(newPtr->long_name));
 625         printf("name                    : %s\n"     ,g_quark_to_string(newPtr->name));
 626         printf("cpu_num                 : %u\n"     ,(unsigned int)(newPtr->cpu_num));
 627         printf("tid                     : %u\n"     ,(unsigned int)(newPtr->tid));
 628         printf("pgid                    : %u\n"     ,(unsigned int)(newPtr->pgid));
 629         printf("creation                : %lu\n"    ,(long unsigned int)(newPtr->creation));
 630         printf("trace ptr               : %p\n"     ,newPtr->trace);
 631         printf("marker ptr              : %p\n"     ,newPtr->mdata);
 632         printf("fd                      : %i\n"     ,(int)(newPtr->fd));
 633         printf("file_size               : %u\n"     ,(unsigned int)(newPtr->file_size));
 634         printf("num_blocks              : %u\n"     ,(unsigned int)(newPtr->num_blocks));
 635         printf("reverse_bo              : %i\n"     ,(int)newPtr->reverse_bo);
 636         printf("float_word_order        : %i\n"     ,(int)newPtr->float_word_order);
 637         printf("alignment               : %i\n"     ,(int)newPtr->alignment);
 638         printf("buffer_header_size      : %i\n"     ,(int)newPtr->buffer_header_size);
 639         printf("tscbits                 : %u\n"     ,(unsigned short)newPtr->tscbits);
 640         printf("eventbits               : %u\n"     ,(unsigned short)newPtr->eventbits);
 641         printf("tsc_mask                : %lu\n"    ,(long unsigned int)newPtr->tsc_mask);
 642         printf("tsc_mask_next_bit       : %lu\n"    ,(long unsigned int)newPtr->tsc_mask_next_bit);
 643         printf("events_lost             : %u\n"     ,(unsigned int)newPtr->events_lost);
 644         printf("subbuf_corrupt          : %u\n"     ,(unsigned int)newPtr->subbuf_corrupt);
 645         printf("event ptr               : %p\n"     ,&newPtr->event);
 646         printf("buffer ptr              : %p\n"     ,&newPtr->buffer);
 647         printf("\n");
 648 }
 649 /*
 650 #
 651 ### */
 652
 653
 654
 655 /*
 656 ### EVENT methods ###
 657 #  */
 658
 659 /* Method to get the read status */
 660 /*    This method will read the next event and then seek back its initial position */
 661 /*    Lttv assume that every tracefile have at least 1 event, but we have not guarantee after this one. */
 662 /*    We will read the next event and return the status of that read */
 663 /*    We will then seek back to our initial position */
 664 /*    Note : this method is expensive and should not be used too often */
 665 JNIEXPORT jint JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1positionToFirstEvent(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 666         LttTracefile *tracefilePtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 667
 668         /* Ask ltt to read the next events on the given tracefiles
 669            Returned value can be :
 670             0               if everything went fine (EOK)
 671             ERANGE  = 34    out of range, back to last event (might be system dependent?)
 672             EPERM   = 1     error while reading              (might be system dependent?)  */
 673
 674
 675         /* Seek to the start time... this will also read the first event, as we want. */
 676         int returnedValue = ltt_tracefile_seek_time(tracefilePtr, ((struct LttTrace)*(tracefilePtr->trace)).start_time_from_tsc);
 677
 678         return (jint)returnedValue;
 679 }
 680
 681 /* Method to read next event */
 682 JNIEXPORT jint JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1readNextEvent(JNIEnv *env, jobject jobj, jlong tracefile_ptr) {
 683         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 684
 685         /* Ask ltt to read the next events on the given tracefiles
 686            Returned value can be :
 687             0               if everything went fine (EOK)
 688             ERANGE  = 34    out of range, back to last event (might be system dependent?)
 689             EPERM   = 1     error while reading              (might be system dependent?)  */
 690
 691
 692         /* ***FIXME***
 693           This might fail on the FIRST event, as the timestamp before the first read is uninitialized
 694           However, LTT make the assumption that all tracefile have AT LEAST one event, so we got to run with it  */
 695
 696         /* Save "last time" before moving, to be able to get back if needed */
 697         LttTime lastTime = newPtr->event.event_time;
 698
 699         int returnedValue = ltt_tracefile_read(newPtr);
 700
 701         /* We need to get back to previous after an error to keep a sane state */
 702         if ( returnedValue != 0 ) {
 703                 ltt_tracefile_seek_time(newPtr, lastTime);
 704         }
 705
 706         return (jint)returnedValue;
 707 }
 708
 709 /* Method to seek to a certain event */
 710 JNIEXPORT jint JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1seekEvent(JNIEnv *env, jobject jobj, jlong tracefile_ptr, jobject time_jobj) {
 711         LttTracefile *newPtr = (LttTracefile*)CONVERT_JLONG_TO_PTR(tracefile_ptr);
 712
 713         guint64 fullTime = 0;
 714
 715         jclass accessClass = (*env)->GetObjectClass(env, time_jobj);
 716         jmethodID getTimeFunction = (*env)->GetMethodID(env, accessClass, "getTime", "()J");
 717         fullTime = (*env)->CallLongMethod(env, time_jobj, getTimeFunction);
 718
 719         /* ***HACK***
 720            Conversion from jlong -> C long seems to be particularly sloppy
 721            Depending how and where (inlined a function or as a single operation) we do this, we might end up with wrong number
 722            The following asignation of guint64 seems to work well.
 723            MAKE SURE TO PERFORM SEVERAL TESTS IF YOU CHANGE THIS.  */
 724         guint64 seconds = fullTime/BILLION;
 725         guint64 nanoSeconds = fullTime%BILLION;
 726
 727         LttTime seekTime = { (unsigned long)seconds, (unsigned long)nanoSeconds };
 728
 729         /* Ask ltt to read the next events on the given tracefiles
 730            Returned value can be :
 731             0               if everything went fine (EOK)
 732             ERANGE  = 34    out of range, back to last event (might be system dependent?)
 733             EPERM   = 1     error while reading              (might be system dependent?)  */
 734
 735         int returnedValue = ltt_tracefile_seek_time(newPtr, seekTime);
 736         return (jint)returnedValue;
 737 }
 738
 739 /* Get of tracefile */
 740 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1getTracefilePtr(JNIEnv *env, jobject jobj, jlong event_ptr) {
 741         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 742
 743         return CONVERT_PTR_TO_JLONG(newPtr->tracefile);
 744 }
 745
 746 /* Get of block */
 747 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1getBlock(JNIEnv *env, jobject jobj, jlong event_ptr) {
 748         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 749
 750         return (jlong)newPtr->block;
 751 }
 752
 753 /* Get of offset */
 754 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1getOffset(JNIEnv *env, jobject jobj, jlong event_ptr) {
 755         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 756
 757         return (jlong)newPtr->offset;
 758 }
 759
 760 /* Get of tsc */
 761 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1getCurrentTimestampCounter(JNIEnv *env, jobject jobj, jlong event_ptr) {
 762         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 763
 764         return CONVERT_UINT64_TO_JLONG(newPtr->tsc);
 765 }
 766
 767 /* Get of timestamp */
 768 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1getTimestamp(JNIEnv *env, jobject jobj, jlong event_ptr) {
 769         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 770
 771         return (jlong)newPtr->timestamp;
 772 }
 773
 774 /* Get of event_id */
 775 JNIEXPORT jint JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1getEventMarkerId(JNIEnv *env, jobject jobj, jlong event_ptr) {
 776         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 777
 778         return (jint)newPtr->event_id;
 779 }
 780
 781 /* Get time in nanoseconds */
 782 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1getNanosencondsTime(JNIEnv *env, jobject jobj, jlong event_ptr) {
 783         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 784
 785         return (CONVERT_UINT64_TO_JLONG(newPtr->event_time.tv_sec)*BILLION) + CONVERT_UINT64_TO_JLONG(newPtr->event_time.tv_nsec);
 786 }
 787
 788 /* Fill event_time into an object */
 789 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1feedEventTime(JNIEnv *env, jobject jobj, jlong event_ptr, jobject time_jobj) {
 790         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 791
 792         jclass accessClass = (*env)->GetObjectClass(env, time_jobj);
 793         jmethodID accessFunction = (*env)->GetMethodID(env, accessClass, "setTimeFromC", "(J)V");
 794
 795         jlong fullTime = (CONVERT_UINT64_TO_JLONG(newPtr->event_time.tv_sec)*BILLION) + CONVERT_UINT64_TO_JLONG(newPtr->event_time.tv_nsec);
 796
 797         (*env)->CallVoidMethod(env, time_jobj, accessFunction, fullTime);
 798 }
 799
 800 /* Access method to the data */
 801 /* The data are in "byte" form */
 802 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1getDataContent(JNIEnv *env, jobject jobj, jlong event_ptr, jlong data_size, jbyteArray dataArray) {
 803         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 804
 805         (*env)->SetByteArrayRegion(env, dataArray, 0, (jsize)data_size, newPtr->data);
 806 }
 807
 808 /* Get of data_size */
 809 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1getEventDataSize(JNIEnv *env, jobject jobj, jlong event_ptr) {
 810         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 811
 812         return (jlong)newPtr->data_size;
 813 }
 814
 815 /* Get of event_size */
 816 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1getEventSize(JNIEnv *env, jobject jobj, jlong event_ptr) {
 817         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 818
 819         return (jlong)newPtr->event_size;
 820 }
 821
 822 /* Get of count */
 823 JNIEXPORT jint JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1getCount(JNIEnv *env, jobject jobj, jlong event_ptr) {
 824         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 825
 826         return (jint)newPtr->count;
 827 }
 828
 829 /* Get of overflow_nsec */
 830 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1getOverflowNanoSeconds(JNIEnv *env, jobject jobj, jlong event_ptr) {
 831         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 832
 833         return CONVERT_UINT64_TO_JLONG(newPtr->overflow_nsec);
 834 }
 835
 836
 837 /* Function to print the content of a event */
 838 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniEvent_ltt_1printEvent(JNIEnv *env, jobject jobj, jlong event_ptr) {
 839         LttEvent *newPtr = (LttEvent*)CONVERT_JLONG_TO_PTR(event_ptr);
 840
 841         printf("tracefile               : %p\n"  ,(void*)newPtr->tracefile );
 842         printf("block                   : %u\n"  ,(unsigned int)newPtr->block );
 843         printf("offset                  : %u\n"  ,(unsigned int)newPtr->offset );
 844         printf("tsc                     : %lu\n" ,(long unsigned int)newPtr->tsc );
 845         printf("timestamp               : %u\n"  ,(unsigned int)newPtr->timestamp );
 846         printf("event_id                : %u\n"  ,(unsigned short)newPtr->event_id );
 847         printf("event_time              : %p\n"  ,(void*) &newPtr->event_time );
 848         printf("   sec                  : %lu\n" ,(long unsigned int)(newPtr->event_time.tv_sec) );
 849         printf("   nsec                 : %lu\n" ,(long unsigned int)(newPtr->event_time.tv_nsec) );
 850         printf("data                    : %p\n"  ,(void*) newPtr->data );
 851         printf("data_size               : %u\n"  ,(unsigned int)newPtr->data_size );
 852         printf("event_size              : %u\n"  ,(unsigned int)newPtr->event_size );
 853         printf("count                   : %d\n"  ,(int)newPtr->count );
 854         printf("overflow_nsec           : %ld\n" ,(long)newPtr->overflow_nsec );
 855         printf("\n");
 856 }
 857 /*
 858 #
 859 ### */
 860
 861
 862 /*
 863 ### MARKER method ###
 864 #  */
 865
 866 /* Get of name */
 867 JNIEXPORT jstring JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarker_ltt_1getName(JNIEnv *env, jobject jobj, jlong marker_info_ptr) {
 868         struct marker_info *newPtr = (struct marker_info*)CONVERT_JLONG_TO_PTR(marker_info_ptr);
 869
 870         return (*env)->NewStringUTF(env, g_quark_to_string(newPtr->name));
 871 }
 872
 873 /* Get of format */
 874 JNIEXPORT jstring JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarker_ltt_1getFormatOverview(JNIEnv *env, jobject jobj, jlong marker_info_ptr) {
 875         struct marker_info *newPtr = (struct marker_info*)CONVERT_JLONG_TO_PTR(marker_info_ptr);
 876
 877         return (*env)->NewStringUTF(env, newPtr->format);
 878 }
 879
 880 /* Get of size */
 881 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarker_ltt_1getSize(JNIEnv *env, jobject jobj, jlong marker_info_ptr) {
 882         struct marker_info *newPtr = (struct marker_info*)CONVERT_JLONG_TO_PTR(marker_info_ptr);
 883
 884         return (jlong)newPtr->size;
 885 }
 886
 887 /* Method to get all markerField pointers */
 888 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarker_ltt_1getAllMarkerFields(JNIEnv *env, jobject jobj, jlong marker_info_ptr) {
 889         struct marker_info *newPtr = (struct marker_info*)CONVERT_JLONG_TO_PTR(marker_info_ptr);
 890
 891         jclass accessClass = (*env)->GetObjectClass(env, jobj);
 892         jmethodID accessFunction = (*env)->GetMethodID(env, accessClass, "addMarkerFieldFromC", "(Ljava/lang/String;J)V");
 893
 894         GArray *field_array = (GArray*)newPtr->fields;
 895         struct marker_field *field;
 896         jlong marker_field_ptr;
 897
 898         unsigned int i;
 899         for (i=0; i<field_array->len; i++) {
 900                 field = &g_array_index(field_array, struct marker_field, i);
 901
 902                 marker_field_ptr = CONVERT_PTR_TO_JLONG(field);
 903
 904                 (*env)->CallVoidMethod(env, jobj, accessFunction, (*env)->NewStringUTF(env, g_quark_to_string(field->name) ), marker_field_ptr );
 905         }
 906 }
 907
 908
 909
 910 /* Get of largest_align */
 911 JNIEXPORT jshort JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarker_ltt_1getLargestAlign(JNIEnv *env, jobject jobj, jlong marker_info_ptr) {
 912         struct marker_info *newPtr = (struct marker_info*)CONVERT_JLONG_TO_PTR(marker_info_ptr);
 913
 914         return (jshort)newPtr->largest_align;
 915 }
 916
 917 /* Get of int_size */
 918 JNIEXPORT jshort JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarker_ltt_1getIntSize(JNIEnv *env, jobject jobj, jlong marker_info_ptr) {
 919         struct marker_info *newPtr = (struct marker_info*)CONVERT_JLONG_TO_PTR(marker_info_ptr);
 920
 921         return (jshort)newPtr->int_size;
 922 }
 923
 924 /* Get of long_size */
 925 JNIEXPORT jshort JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarker_ltt_1getLongSize(JNIEnv *env, jobject jobj, jlong marker_info_ptr) {
 926         struct marker_info *newPtr = (struct marker_info*)CONVERT_JLONG_TO_PTR(marker_info_ptr);
 927
 928         return (jshort)newPtr->long_size;
 929 }
 930
 931 /* Get of pointer_size */
 932 JNIEXPORT jshort JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarker_ltt_1getPointerSize(JNIEnv *env, jobject jobj, jlong marker_info_ptr) {
 933         struct marker_info *newPtr = (struct marker_info*)CONVERT_JLONG_TO_PTR(marker_info_ptr);
 934
 935         return (jshort)newPtr->pointer_size;
 936 }
 937
 938 /* Get of size_t_size */
 939 JNIEXPORT jshort JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarker_ltt_1getSize_1tSize(JNIEnv *env, jobject jobj, jlong marker_info_ptr) {
 940         struct marker_info *newPtr = (struct marker_info*)CONVERT_JLONG_TO_PTR(marker_info_ptr);
 941
 942         return (jshort)newPtr->size_t_size;
 943 }
 944
 945 /* Get of alignment */
 946 JNIEXPORT jshort JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarker_ltt_1getAlignement(JNIEnv *env, jobject jobj, jlong marker_info_ptr) {
 947         struct marker_info *newPtr = (struct marker_info*)CONVERT_JLONG_TO_PTR(marker_info_ptr);
 948
 949         return (jshort)newPtr->alignment;
 950 }
 951
 952 /* Get of next */
 953 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarker_ltt_1getNextMarkerPtr(JNIEnv *env, jobject jobj, jlong marker_info_ptr) {
 954         struct marker_info *newPtr = (struct marker_info*)CONVERT_JLONG_TO_PTR(marker_info_ptr);
 955
 956         return CONVERT_PTR_TO_JLONG(newPtr->next);
 957 }
 958
 959
 960 /* Function to print the content of a marker */
 961 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarker_ltt_1printMarker(JNIEnv *env, jobject jobj, jlong marker_info_ptr) {
 962         struct marker_info *newPtr = (struct marker_info*)CONVERT_JLONG_TO_PTR(marker_info_ptr);
 963
 964         printf("name          : %s\n"  ,g_quark_to_string(newPtr->name) );
 965         printf("format        : %s\n"  ,newPtr->format );
 966         printf("size          : %li\n" ,(long int)newPtr->size );
 967         printf("largest_align : %u\n"  ,(unsigned short)newPtr->largest_align );
 968         printf("fields        : %p\n"  ,newPtr->fields );
 969         printf("int_size      : %u\n"  ,(unsigned short)newPtr->int_size );
 970         printf("long_size     : %u\n"  ,(unsigned short)newPtr->long_size );
 971         printf("pointer_size  : %u\n"  ,(unsigned short)newPtr->pointer_size );
 972         printf("size_t_size   : %u\n"  ,(unsigned short)newPtr->size_t_size );
 973         printf("alignment     : %u\n"  ,(unsigned short)newPtr->alignment );
 974         printf("next          : %p\n"  ,newPtr->next );
 975         printf("\n");
 976 }
 977 /*
 978 #
 979 ### */
 980
 981
 982
 983 /*
 984 ### MARKERFIELD Method
 985 #  */
 986
 987 /* Get of name */
 988 JNIEXPORT jstring JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarkerField_ltt_1getField(JNIEnv *env, jobject jobj, jlong marker_field_ptr) {
 989         struct marker_field *newPtr = (struct marker_field*)CONVERT_JLONG_TO_PTR(marker_field_ptr);
 990
 991         return (*env)->NewStringUTF(env, g_quark_to_string(newPtr->name));
 992 }
 993
 994 /* Get of type */
 995 JNIEXPORT jint JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarkerField_ltt_1getType(JNIEnv *env, jobject jobj, jlong marker_field_ptr) {
 996         struct marker_field *newPtr = (struct marker_field*)CONVERT_JLONG_TO_PTR(marker_field_ptr);
 997
 998         return (jint)newPtr->type;
 999 }
1000
1001 /* Get of offset */
1002 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarkerField_ltt_1getOffset(JNIEnv *env, jobject jobj, jlong marker_field_ptr) {
1003         struct marker_field *newPtr = (struct marker_field*)CONVERT_JLONG_TO_PTR(marker_field_ptr);
1004
1005         return CONVERT_UINT64_TO_JLONG(newPtr->offset);
1006 }
1007
1008 /* Get of size */
1009 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarkerField_ltt_1getSize(JNIEnv *env, jobject jobj, jlong marker_field_ptr) {
1010         struct marker_field *newPtr = (struct marker_field*)CONVERT_JLONG_TO_PTR(marker_field_ptr);
1011
1012         return CONVERT_UINT64_TO_JLONG(newPtr->size);
1013 }
1014
1015 /* Get of alignment */
1016 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarkerField_ltt_1getAlignment(JNIEnv *env, jobject jobj, jlong marker_field_ptr) {
1017         struct marker_field *newPtr = (struct marker_field*)CONVERT_JLONG_TO_PTR(marker_field_ptr);
1018
1019         return CONVERT_UINT64_TO_JLONG(newPtr->alignment);
1020 }
1021
1022 /* Get of attributes */
1023 JNIEXPORT jlong JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarkerField_ltt_1getAttributes(JNIEnv *env, jobject jobj, jlong marker_field_ptr) {
1024         struct marker_field *newPtr = (struct marker_field*)CONVERT_JLONG_TO_PTR(marker_field_ptr);
1025
1026         return CONVERT_UINT64_TO_JLONG(newPtr->attributes);
1027 }
1028
1029 /* Get of static_offset */
1030 JNIEXPORT jint JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarkerField_ltt_1getStatic_1offset(JNIEnv *env, jobject jobj, jlong marker_field_ptr) {
1031         struct marker_field *newPtr = (struct marker_field*)CONVERT_JLONG_TO_PTR(marker_field_ptr);
1032
1033         return (jint)newPtr->static_offset;
1034 }
1035
1036 /* Get of fmt */
1037 JNIEXPORT jstring JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarkerField_ltt_1getFormat(JNIEnv *env, jobject jobj, jlong marker_field_ptr) {
1038         struct marker_field *newPtr = (struct marker_field*)CONVERT_JLONG_TO_PTR(marker_field_ptr);
1039
1040         return (*env)->NewStringUTF(env, newPtr->fmt->str);
1041 }
1042
1043 /* Function to print the content of a marker_field */
1044 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniMarkerField_ltt_1printMarkerField(JNIEnv *env, jobject jobj, jlong marker_field_ptr) {
1045         struct marker_field *newPtr = (struct marker_field*)CONVERT_JLONG_TO_PTR(marker_field_ptr);
1046
1047         printf("name          : %s\n"  ,g_quark_to_string(newPtr->name) );
1048         printf("type          : %i\n"  ,(int)newPtr->type );
1049         printf("offset        : %lu\n" ,(long unsigned int)newPtr->offset );
1050         printf("size          : %lu\n" ,(long unsigned int)newPtr->size );
1051         printf("alignment     : %lu\n" ,(long unsigned int)newPtr->alignment );
1052         printf("attributes    : %lu\n" ,(long unsigned int)newPtr->attributes );
1053         printf("static_offset : %i\n"  ,(int)newPtr->static_offset );
1054         printf("fmt           : %s\n"  ,newPtr->fmt->str );
1055         printf("\n");
1056 }
1057 /*
1058 #
1059 ### */
1060
1061
1062 /*
1063 ### PARSER Method
1064 # */
1065
1066 /* This function will do the actual parsing  */
1067 /*      It will then call java to assign the parsed data to the object "javaObj" */
1068 JNIEXPORT void JNICALL Java_org_eclipse_linuxtools_lttng_jni_JniParser_ltt_1getParsedData(JNIEnv *env, jclass accessClass, jobject javaObj, jlong event_ptr, jlong marker_field_ptr) {
1069         LttEvent newEventPtr = *(LttEvent*)(CONVERT_JLONG_TO_PTR(event_ptr));
1070         struct marker_field *newMarkerFieldPtr = (struct marker_field*)CONVERT_JLONG_TO_PTR(marker_field_ptr);
1071
1072         jmethodID accessFunction = NULL;
1073
1074
1075         /*
1076           There is a very limited number of type in LTT
1077           We will switch on the type for this field and act accordingly
1078              NOTE : We will save all integer into "long" type, as there is no signed/unsigned in java */
1079
1080         /* ***HACK***
1081            It seems the marker_field->type is absolutely not consistent, especially about pointer!
1082               Sometime pointer are saved in String, sometime as Int, sometime as pointer...
1083            We will do an extra check on type "LTT_TYPE_UNSIGNED_INT" to check if the marker_field->format is hint of a pointer  */
1084         switch ( newMarkerFieldPtr->type ) {
1085                 case LTT_TYPE_SIGNED_INT :
1086                         accessFunction = (*env)->GetStaticMethodID(env, accessClass, "addLongToParsingFromC", "(Ljava/lang/Object;J)V");
1087                         (*env)->CallStaticVoidMethod(   env,
1088                                                         accessClass,
1089                                                         accessFunction,
1090                                                         javaObj,
1091                                                         ltt_event_get_long_int(&newEventPtr, newMarkerFieldPtr)
1092                                                      );
1093
1094                         break;
1095
1096                 case LTT_TYPE_UNSIGNED_INT :
1097                         /* If the format seems to be a pointer, add it as a pointer */
1098                         if ( (strncmp(newMarkerFieldPtr->fmt->str, "0x%llX", newMarkerFieldPtr->fmt->len) == 0 ) || (strncmp(newMarkerFieldPtr->fmt->str, "%llX", newMarkerFieldPtr->fmt->len) == 0 ) ) {
1099                                 #if __WORDSIZE == 64
1100                                         accessFunction = (*env)->GetStaticMethodID(env, accessClass, "addLongPointerToParsingFromC", "(Ljava/lang/Object;J)V");
1101                                 #else
1102                                         accessFunction = (*env)->GetStaticMethodID(env, accessClass, "addIntPointerToParsingFromC", "(Ljava/lang/Object;J)V");
1103                                 #endif
1104                                 (*env)->CallStaticVoidMethod(   env,
1105                                                                 accessClass,
1106                                                                 accessFunction,
1107                                                                 javaObj,
1108                                                                 CONVERT_PTR_TO_JLONG(ltt_event_get_long_unsigned(&newEventPtr, newMarkerFieldPtr) )
1109                                                              );
1110                         }
1111                         /* Otherwise, add it as a number */
1112                         else {
1113                                 accessFunction = (*env)->GetStaticMethodID(env, accessClass, "addLongToParsingFromC", "(Ljava/lang/Object;J)V");
1114                                 (*env)->CallStaticVoidMethod(   env,
1115                                                                 accessClass,
1116                                                                 accessFunction,
1117                                                                 javaObj,
1118                                                                 ltt_event_get_long_unsigned(&newEventPtr, newMarkerFieldPtr)
1119                                                              );
1120                         }
1121
1122                         break;
1123
1124                 case LTT_TYPE_POINTER :
1125                         #if __WORDSIZE == 64
1126                                 accessFunction = (*env)->GetStaticMethodID(env, accessClass, "addLongPointerToParsingFromC", "(Ljava/lang/Object;J)V");
1127                         #else
1128                                 accessFunction = (*env)->GetStaticMethodID(env, accessClass, "addIntPointerToParsingFromC", "(Ljava/lang/Object;J)V");
1129                         #endif
1130                         (*env)->CallStaticVoidMethod(   env,
1131                                                         accessClass,
1132                                                         accessFunction,
1133                                                         javaObj,
1134                                                         CONVERT_PTR_TO_JLONG(*(GINT_TYPE_FOR_PTR*)(newEventPtr.data + newMarkerFieldPtr->offset))
1135                                                      );
1136                         break;
1137
1138                 case LTT_TYPE_STRING :
1139                         accessFunction = (*env)->GetStaticMethodID(env, accessClass, "addStringToParsingFromC", "(Ljava/lang/Object;Ljava/lang/String;)V");
1140                         (*env)->CallStaticVoidMethod(   env,
1141                                                         accessClass,
1142                                                         accessFunction,
1143                                                         javaObj,
1144                                                         (*env)->NewStringUTF(env, ltt_event_get_string(&newEventPtr, newMarkerFieldPtr) )
1145                                                      );
1146                         break;
1147
1148                 case LTT_TYPE_COMPACT :
1149                 case LTT_TYPE_NONE :
1150                 default :
1151                         printf("Warning : Unrecognized format type! Skipping! (Java_org_eclipse_linuxtools_lttng_jni_JniParser_ltt_1getParsedData)");
1152                         break;
1153         }
1154
1155 }
1156 /*
1157 #
1158 ###  */