I have a function in C:
void start_fun()
{
// do something
}
I want to use pthread_create() to create a thread and the start routine is start_fun(), without modifing void start_fun(), how to get the function pointer to start_fun();
If you write the function name start_fun without any parameters anywhere in your code, you will get a function pointer to that function.
However pthread_create expects a function of the format void* func (void*).
If rewriting the function isn't an option, you'll have to write a wrapper:
void* call_start_fun (void* dummy)
{
(void)dummy;
start_fun();
return 0;
}
then pass call_start_fun to pthread_create:
pthread_create(&thread, NULL, call_start_fun, NULL);
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