/***************************************************************************
 * Copyright (c) 2024 Microsoft Corporation
 * Copyright (c) 2026-present Eclipse ThreadX contributors
 *
 * This program and the accompanying materials are made available under the
 * terms of the MIT License which is available at
 * https://opensource.org/licenses/MIT.
 *
 * SPDX-License-Identifier: MIT
 **************************************************************************/


/**************************************************************************/
/**************************************************************************/
/**                                                                       */
/** POSIX wrapper for THREADX                                             */
/**                                                                       */
/**                                                                       */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/

/* Include necessary system files.  */

#include "tx_api.h"     /* Threadx API */
#include "pthread.h"    /* Posix API */
#include "px_int.h"     /* Posix helper functions */

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    posix_system_manager_entry                          PORTABLE C      */
/*                                                           6.2.0        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    William E. Lamie, Microsoft Corporation                             */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This is the System Manager thread for the POSIX> The system         */
/*    manager thread cleans up terminated threads and releases            */
/*    the stack memory associated with the thread                         */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    input                                       Not used                */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    tx_queue_receive                            Receive system request  */
/*    posix_do_pthread_delete                     Delete a pthread        */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Start-up code                                                       */
/*                                                                        */
/**************************************************************************/
VOID  posix_system_manager_entry(ULONG input)
{

UINT        status;
ULONG       request[WORK_REQ_SIZE];

POSIX_TCB   *pthread_ptr;
VOID        *value_ptr;

    /* Avoid compiler warning.  */
    TX_PARAMETER_NOT_USED(input);

    /* Loop forever, waiting for work requests.  */
    while(1)
    {
        /* Wait forever for the next work request.  */
        status = tx_queue_receive(&posix_work_queue, &request, TX_WAIT_FOREVER);
        /* Make sure we didn't encounter any trouble.  */
        if (status != TX_SUCCESS)
        {
            /* Get the next message.  */
            continue;
        }

        #ifdef TX_64_BIT
        pthread_ptr = (POSIX_TCB *)((((ALIGN_TYPE)request[0]) << 32) | request[1]);
        value_ptr = (VOID *)((((ALIGN_TYPE)request[2]) << 32) | request[3]);
        #else
        pthread_ptr = (POSIX_TCB *)request[0];
        value_ptr = (VOID *)request[1];
        #endif

        /* Delete the pthread  */
        posix_do_pthread_delete(pthread_ptr, value_ptr);

    } /* System Manager forever loop  */
}

