Call Reentrant Code in a Multithreaded Environment
To call reentrant code, create a main function
that:
Includes the header file
primary_function_name.h.For each thread, allocates memory for the global memory allocation structure
primary_function_nameStackData.If the algorithm uses persistent or global data, allocates memory for the global structure
primary_function_namePersistentData. If the threads communicate, allocate this memory once for the root process. Otherwise, you can allocate memory per thread.Contains a thread function that calls these functions:
primary_function_name_initialize.primary_function_name.primary_function_name_terminate.
When you convert a MATLAB® function to a C/C++ library function or a C/C++ executable, MATLAB Coder™ generates two housekeeping functions. Call these functions in the code that calls the generated C/C++ function. For more information, see Deploy Generated Code.
Initializes each thread and passes in a pointer to the memory allocation structure as the first parameter to the thread function.
Frees up the memory used for global structures.
Multithreaded Examples
| Type of Reentrant Code | Platform | Reference |
|---|---|---|
| Multithreaded without persistent or global data | Windows® | Generate Reentrant C Code from MATLAB Code |
| UNIX® | Call Reentrant Code with No Persistent or Global Data (UNIX Only) | |
| Multithreaded with persistent or global data | Windows | Call Reentrant Code — Multithreaded with Persistent Data (Windows Only) |
| UNIX | Call Reentrant Code — Multithreaded with Persistent Data (UNIX Only) |
