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Restructure init and add more detailed initialization.

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This commit is contained in:
Jennifer Averett 2012-07-17 08:19:04 -05:00
parent db280c9613
commit 9ee8629924
1 changed files with 93 additions and 17 deletions
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108
rtemsbsd/src/rtems-bsd-thread.c
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@ -45,13 +45,102 @@
#include <freebsd/sys/proc.h>
#include <freebsd/sys/kthread.h>
#include <freebsd/sys/malloc.h>
#include <freebsd/sys/lock.h>
#include <freebsd/sys/mutex.h>
#include <freebsd/sys/jail.h>
RTEMS_CHAIN_DEFINE_EMPTY(rtems_bsd_thread_chain);
/* FIXME: What to do with the credentials? */
static struct ucred FIXME_ucred = {
.cr_ref = 1
.cr_ref = 1 /* reference count */
};
static struct proc FIXME_proc = {
.p_ucred = NULL /* (c) Process owner's identity. */
};
static int prison_init = 1;
static struct prison FIXME_prison = {
.pr_parent = NULL
};
static struct thread *
rtems_bsd_thread_init_note( rtems_id id )
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
unsigned index = 0;
char name [5] = "_???";
struct thread *td = malloc(sizeof(struct thread), M_TEMP, M_WAITOK | M_ZERO);
struct proc *proc;
if ( td == NULL )
return td;
sc = rtems_task_set_note( id, RTEMS_NOTEPAD_0, ( uint32_t )td );
if (sc != RTEMS_SUCCESSFUL) {
free(td, M_TEMP);
return NULL;
}
index = rtems_object_id_get_index(id);
snprintf(name + 1, sizeof(name) - 1, "%03u", index);
sc = rtems_object_set_name(id, name);
if (sc != RTEMS_SUCCESSFUL) {
rtems_task_delete(id);
free(td, M_TEMP);
return NULL;
}
td->td_id = id;
td->td_ucred = crhold(&FIXME_ucred);
td->td_proc = &FIXME_proc;
if (td->td_proc->p_ucred != NULL)
return td;
if (prison_init ) {
mtx_init(&FIXME_prison.pr_mtx, "prison lock", NULL, MTX_DEF | MTX_DUPOK);
prison_init = 0;
}
FIXME_ucred.cr_prison = &FIXME_prison; /* jail(2) */
td->td_proc->p_ucred = crhold(&FIXME_ucred);
mtx_init(&td->td_proc->p_mtx, "process lock", NULL, MTX_DEF | MTX_DUPOK);
td->td_proc->p_pid = getpid();
td->td_proc->p_fibnum = 0;
return td;
}
/*
* XXX Threads which delete themselves will leak this
* XXX Maybe better integrated into the TCB OR a task variable.
* XXX but this is OK for now
*/
struct thread *rtems_get_curthread(void)
{
struct thread *td;
rtems_status_code sc;
rtems_id id;
/*
* If we already have a struct thread associated with this thread,
* obtain it
*/
id = rtems_task_self();
sc = rtems_task_get_note( id, RTEMS_NOTEPAD_0, (uint32_t *) &td );
if (sc != RTEMS_SUCCESSFUL) {
panic("rtems_get_curthread: get note Error\n");
}
td = rtems_bsd_thread_init_note( id);
if ( td == NULL ){
panic("rtems_get_curthread: Unable to generate thread note\n");
}
return td;
}
static int
rtems_bsd_thread_start(struct thread **td_ptr, void (*func)(void *), void *arg, int flags, int pages, const char *fmt, va_list ap)
@ -80,22 +169,9 @@ rtems_bsd_thread_start(struct thread **td_ptr, void (*func)(void *), void *arg,
return ENOMEM;
}
sc = rtems_task_set_note( id, RTEMS_NOTEPAD_0, ( uint32_t )td );
if (sc != RTEMS_SUCCESSFUL) {
free(td, M_TEMP);
td = rtems_bsd_thread_init_note( id );
if (!td)
return ENOMEM;
}
index = rtems_object_id_get_index(id);
snprintf(name + 1, sizeof(name) - 1, "%03u", index);
sc = rtems_object_set_name(id, name);
if (sc != RTEMS_SUCCESSFUL) {
rtems_task_delete(id);
free(td, M_TEMP);
return ENOMEM;
}
sc = rtems_task_start(id, (rtems_task_entry) func, (rtems_task_argument) arg);
if (sc != RTEMS_SUCCESSFUL) {