pydimlock.c

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/* ensure that with the DIM lock the python interpreter lock is also taken */

#include <stdio.h>
#include <dlfcn.h>
#include <errno.h>
#include <string.h>

void dim_lock()
{
    static void  (*func)(void);

    if(!func) {
    dlerror();
    if (!(func = (void (*)()) dlsym(RTLD_NEXT, "dim_lock"))) printf("%s\n", dlerror());
  }
  printf("dim_lock() is called\n"); 
  func();     
  return;
}

dim_unlock()
{
  
  static void  (*func)(void);

    if(!func) {
    dlerror();
    if (!(func = (void (*)()) dlsym(RTLD_NEXT, "dim_unlock"))) printf("%s\n", dlerror());
  }
  printf("dim_unlock() is called\n"); 
  func();     
  return;
}

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