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/* TracerCWrapper -- wrapped ppaml_tracer_t
* Copyright (C) 2014 Galois, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither Galois's name nor the names of other contributors may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY GALOIS AND OTHER CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL GALOIS OR OTHER CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
package com.galois.ppaml.tracer;
/**
* Abstract base class for all tracer implementations.
*/
abstract class TracerCWrapper extends CWrapper implements Tracer {
@Override
public Phase createPhase(final String name) {
return new Phase(this, name);
}
////////////////////////// Low-level life cycle //////////////////////////
///// JNI shared library /////
static {
System.loadLibrary("ppamltracer_java");
}
/**
* Wraps <code>malloc</code> to allocate a <code>ppaml_tracer_t</code>.
*
* @return Same as <code>malloc</code>.
*/
protected static native long mallocTracer();
/**
* Wraps <code>ppaml_tracer_init</code>.
*
* @return -1 if converting <code>reportNameBase</code> from a
* <code>String</code> to a <code>char *</code> failed; all other return
* codes are the same as <code>ppaml_tracer_init</code>.
*/
protected static native int ppaml_tracer_init(
long tracer,
final String reportNameBase);
/**
* Wraps <code>ppaml_tracer_init_from_env</code>.
*
* @return Same as <code>ppaml_tracer_init_from_env</code>.
*/
protected static native int ppaml_tracer_init_from_env(long tracer);
/**
* Wraps <code>ppaml_tracer_done</code>.
*
* @return Same as <code>ppaml_tracer_done</code>.
*/
protected static native int ppaml_tracer_done(long tracer);
/**
* Wraps <code>free</code>.
*/
protected static native void freeTracer(long tracer);
///// JNI adapter code /////
@Override
protected void allocateCPointer() {
this.cPointer = mallocTracer();
}
@Override
protected abstract void initializeCPointer();
@Override
protected void finalizeCPointer() {
assert this.cPointer != 0;
final int r = ppaml_tracer_done(this.cPointer);
if (r != 0) {
throw new UnexpectedReturnValueError(r);
}
}
@Override
protected void freeCPointer() {
assert this.cPointer != 0;
freeTracer(this.cPointer);
}
}
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