ospinit.c

mgcp协议源代码。支持多种编码：g711

/*
*########################################################################
*########################################################################
*########################################################################
*                                                               
*   COPYRIGHT (c) 1998, 1999 by TransNexus, LLC                          
*                                                                    
*   This software contains proprietary and confidential information  
*   of TransNexus, LLC. Except as may be set forth in the license    
*   agreement under which this software is supplied, use, disclosure, 
*   or reproduction is prohibited without the prior, express, written
*   consent of TransNexus, LLC.                                      
*                                     
*
*
*
*
*
*
*#########################################################################
*#########################################################################
*#########################################################################
*/


/*
 * ospinit.cpp - Provider space initialization.
 */
#include "osp.h"
#include "ospprovider.h"

OSPTPROVIDER    OSPVProviderCollection[OSPC_MAX_PROVIDERS];
OSPTMUTEX       OSPVProviderMutex;

#ifdef OSPC_GK_SIM
char *OSPVDeleteAllowed;
#endif

/*
 * The OSPPInit function performs internal housekeeping necessary to 
 * prepare the SDK software for operation.
 *
 * returns OSPC_ERR_NO_ERROR if successful, OSPC_ERR_XXX otherwise.
 */
int
OSPPInit(void)
{
    int         providerindex = 0;
    int         errorcode     = OSPC_ERR_NO_ERROR,
                tmperror      = OSPC_ERR_NO_ERROR;

    /*
     * create global provider mutex
     */
    OSPM_MUTEX_INIT(OSPVProviderMutex, NULL, errorcode);
    if (errorcode == OSPC_ERR_NO_ERROR) 
    {
        /*
         * cycle thru collection, initializing each element.
         */
        for(providerindex = 0; providerindex < OSPC_MAX_PROVIDERS; providerindex++)
        {
            OSPM_MEMSET(&OSPVProviderCollection[providerindex], 0, 
                sizeof(OSPTPROVIDER));
        }

        /*
         * initialize Winsock Library if necessary
         */
        OSPM_INITWINSOCK(errorcode);

        /*
         * if initialization failed, destroy the mutex and return failure
         */
        if (errorcode != OSPC_ERR_NO_ERROR)
            OSPM_MUTEX_DESTROY(OSPVProviderMutex, tmperror);
    }

    if (errorcode != OSPC_ERR_NO_ERROR)
        errorcode = OSPC_ERR_PROV_INIT_FAILURE;

#ifdef OSPC_GK_SIM
    if (errorcode == OSPC_ERR_NO_ERROR)
    {
        OSPVDeleteAllowed = OSPM_GETENV("GKSIM_DELETE_ALLOWED");
    }
#endif

    return errorcode;
}

void
OSPPCleanup(void)
{
    int errorcode = OSPC_ERR_NO_ERROR;

    /*
     * called to cleanup any resources allocated by OSPPinit
     */
    OSPM_MUTEX_DESTROY(OSPVProviderMutex, errorcode);
    OSPM_CLEANUPWINSOCK();
    return;
}