/**
* Load a system library from a stream. Copies the library to a temp file and loads from there.
*
* @param libname name of the library (just used in constructing the library name)
* @param is InputStream pointing to the library
*/
private void loadLibraryFromStream(String libname, InputStream is) {
try {
File tempfile = createTempFile(libname);
OutputStream os = new FileOutputStream(tempfile);
logger.debug("tempfile.getPath() = " + tempfile.getPath());
long savedTime = System.currentTimeMillis();
// Leo says 8k block size is STANDARD ;)
byte buf[] = new byte[8192];
int len;
while ((len = is.read(buf)) > 0) {
os.write(buf, 0, len);
}
os.flush();
InputStream lock = new FileInputStream(tempfile);
os.close();
double seconds = (double) (System.currentTimeMillis() - savedTime) / 1e3;
logger.debug("Copying took " + seconds + " seconds.");
logger.debug("Loading library from " + tempfile.getPath() + ".");
System.load(tempfile.getPath());
lock.close();
} catch (IOException io) {
logger.error("Could not create the temp file: " + io.toString() + ".\n");
} catch (UnsatisfiedLinkError ule) {
logger.error("Couldn't load copied link file: " + ule.toString() + ".\n");
throw ule;
}
}
/* (non-Javadoc)
* @see jhorn.solver.ProverFactory#spawn()
*/
@Override
public Prover spawn() {
Prover z3 = null;
try {
z3 = new Z3Prover();
// z3 = new Z3HornProver();
} catch (UnsatisfiedLinkError e) {
Log.error("Cannot start z3. " + e.toString());
}
return z3;
}
