core/sqf/src/seabed/test/thook.cpp

//------------------------------------------------------------------
//
// @@@ START COPYRIGHT @@@
//
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
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// @@@ END COPYRIGHT @@@

#include <stdio.h>
#include <unistd.h>

#include "tutilp.h"

//
// Purpose: debug hook
//
void test_debug_hook(const char *p_who, const char *p_fname) {
    FILE        *f;
    static int   fexists = 0;

    if (fexists)
        return;
    f = fopen(p_fname, "r");
    if (f) {
        fclose(f);
        fexists = 1;
    } else {
        printf("%s: create file %s to continue\n", p_who, p_fname);
        printf("%s: slave pid=%d\n", p_who, getpid());
        fflush(stdout);
        for (;;) {
            f = fopen(p_fname, "r");
            if (f) {
                fclose(f);
                fexists = 1;
                printf("%s: %s detected - continuing\n", p_who, p_fname);
                fflush(stdout);
                break;
            }
            sleep(1);
        }
    }
}