THREAD_SAFE_EXCEPTIONS.cpp

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// checking if exceptions are thread safe
 
 
#include "thread.h"
#include "nodbg.h"
 
 
extern "C" void* thread_proc (void *arg)
{
    long sum = 0;
    long n   = (char*)arg - (char*)0;
 
    for (long i = 0; i != 0x20000; ++i) {
        try {
            if (i % 2 == n)
                throw i;
            else
                throw arg;
        }
        catch (long) {
            ++sum;
        }
        catch (...) {
            sum += 2;
        }
    }
 
    return (void*)sum;
}
 
 
int main ()
{
    nodbg ();
 
    pthread_t tid [2];
 
    const unsigned N = sizeof tid / sizeof *tid;
 
    set_concurrency (N);
 
    unsigned i;
 
    for (i = 0; i != N; ++i)
        if (pthread_create (tid + i, 0, thread_proc, (void*)i))
            return 1;
 
    for (i = 0; i != N; ++i)
        pthread_join (tid [i], 0);
 
    return 0;
}