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Diffstat (limited to 'bindings/java/src/java/com/galois/ppaml/tracer/TracerCWrapper.java')
-rw-r--r-- | bindings/java/src/java/com/galois/ppaml/tracer/TracerCWrapper.java | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/bindings/java/src/java/com/galois/ppaml/tracer/TracerCWrapper.java b/bindings/java/src/java/com/galois/ppaml/tracer/TracerCWrapper.java new file mode 100644 index 0000000..4f4dc0a --- /dev/null +++ b/bindings/java/src/java/com/galois/ppaml/tracer/TracerCWrapper.java @@ -0,0 +1,105 @@ +/* TracerCWrapper -- wrapped ppaml_tracer_t + * Copyright (C) 2014 Galois, Inc. + * + * This library is free software: you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation, either version 3 of the License, or (at your option) + * any later version. + * + * This library is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this library. If not, see <http://www.gnu.org/licenses/>. + * + * To contact Galois, complete the Web form at + * <http://corp.galois.com/contact/> or write to Galois, Inc., 421 Southwest + * 6th Avenue, Suite 300, Portland, Oregon, 97204-1622. */ + +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); + } + +} |