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/* EnvironmentConfiguredTracer -- tracer initialized with ppaml_tracer_init_from_env
* 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;
/**
* A tracer initialized automatically from environment variables.
*
* <p>The currently-supported environment variables are:
*
* <dl>
* <dt><code>PPAMLTRACER_TRACE_BASE</code></dt><dd>All trace file paths will
* begin with this path.</dd>
*/
public final class EnvironmentConfiguredTracer extends TracerCWrapper {
/**
* Creates and initializes an <code>EnvironmentConfiguredTracer</code>. The
* trace report will be stored in Open Trace Format.
*/
public EnvironmentConfiguredTracer() {
super.open();
}
////////////////////////// Low-level life cycle //////////////////////////
///// JNI adapter code /////
/**
* Installs data into the structure to make it ready for use.
*
* <p> <b>Precondition:</b> Initialization succeeded.
*
* @throws OTFManagerInitializationException the Open Trace Format file
* manager could not be initialized.
*
* @throws OTFWriterInitializationException the Open Trace Format writer
* could not be initialized.
*
* @throws OTFWriterResolutionException setting the trace resolution failed.
*
* @throws OTFWriterProcessDefinitionException defining the main OTF process
* failed.
*/
@Override
protected void initializeCPointer() {
assert this.cPointer != 0;
final int r = ppaml_tracer_init_from_env(this.cPointer);
switch (r) {
case 0:
break;
case 1:
throw new OTFManagerInitializationException();
case 2:
throw new OTFWriterInitializationException();
case 3:
throw new OTFWriterResolutionException();
case 4:
throw new OTFWriterProcessDefinitionException("main");
case 5:
throw new UndefinedTracerBasePathException();
default:
throw new UnexpectedReturnValueError(r);
}
}
}
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