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#include "rtems-rpc-config.h"
/*
* RTEMS multi-tasking support
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rpc/rpc.h>
#include <rtems.h>
#include <stdlib.h>
#include <pthread.h>
#include <assert.h>
/*
* RPC variables for single-thread
*/
static struct _rtems_rpc_task_variables rpc_default = {
-1, /* svc_maxfd */
{{0}}, /* svc_svc_fdset */
NULL, /* svc_xports */
0, /* svc_xportssize */
0, /* svc__svc_fdsetsize */
0, /* svc__svc_fdset */
NULL, /* svc_svc_head */
0, /* clnt_perror_buf */
0, /* clnt_raw_private */
0, /* call_rpc_private */
0, /* svc_raw_private */
0, /* svc_simple_proglst */
0, /* svc_simple_pl */
0, /* svc_simple_transp */
0, /* rpcdname_default_domain */
0 /* svc_auths_Auths */
};
/*
* RPC values for initializing a new per-task set of variables
*/
static const struct _rtems_rpc_task_variables rpc_init = {
-1, /* svc_maxfd */
{{0}}, /* svc_svc_fdset */
NULL, /* svc_xports */
0, /* svc_xportssize */
0, /* svc__svc_fdsetsize */
0, /* svc__svc_fdset */
NULL, /* svc_svc_head */
0, /* clnt_perror_buf */
0, /* clnt_raw_private */
0, /* call_rpc_private */
0, /* svc_raw_private */
0, /* svc_simple_proglst */
0, /* svc_simple_pl */
0, /* svc_simple_transp */
0, /* rpcdname_default_domain */
0 /* svc_auths_Auths */
};
/*
* Per-task pointer to RPC data
*/
static pthread_once_t rtems_rpc_task_variable_once = PTHREAD_ONCE_INIT;
static pthread_key_t rtems_rpc_task_variable_key;
/*
* Return the current task variable pointer.
*/
struct _rtems_rpc_task_variables *rtems_rpc_task_variables_get (void)
{
void *ptr = pthread_getspecific(rtems_rpc_task_variable_key);
if (ptr == NULL) {
ptr = &rpc_default;
}
return (struct _rtems_rpc_task_variables *) ptr;
}
/*
* Key create function for task_variable_key.
*/
static void rtems_rpc_task_variable_make_key (void)
{
int eno = pthread_key_create(&rtems_rpc_task_variable_key, NULL);
assert (eno == 0);
/*
* FIXME: Should have destructor which cleans up
* all RPC stuff:
* - Close all files
* - Go through and free linked list elements
* - Free other allocated memory (e.g. clnt_perror_buf)
*/
}
/*
* Set up per-task RPC variables
*/
int rtems_rpc_task_init (void)
{
struct _rtems_rpc_task_variables *tvp;
int eno = 0;
eno = pthread_once(
&rtems_rpc_task_variable_once,
rtems_rpc_task_variable_make_key
);
assert (eno == 0);
tvp = pthread_getspecific (rtems_rpc_task_variable_key);
if (tvp == NULL) {
tvp = malloc (sizeof *tvp);
if (tvp == NULL)
return RTEMS_NO_MEMORY;
eno = pthread_setspecific (rtems_rpc_task_variable_key, (void *) tvp);
if (eno != 0) {
free (tvp);
return RTEMS_INTERNAL_ERROR;
}
*tvp = rpc_init;
}
return RTEMS_SUCCESSFUL;
}
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