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proc_init()

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- code that initializes proc.c structures removed from main() and placed in
  proc_init() function
This commit is contained in:
Tomas Hruby 2010-09-15 14:09:43 +00:00
parent ce4fd0c0fb
commit 2a2a19e542
3 changed files with 30 additions and 21 deletions
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22
kernel/main.c
View file

@ -32,7 +32,6 @@ PUBLIC int main(void)
/* Start the ball rolling. */
struct boot_image *ip; /* boot image pointer */
register struct proc *rp; /* process pointer */
register struct priv *sp; /* privilege structure pointer */
register int i, j;
int hdrindex; /* index to array of a.out headers */
phys_clicks text_base;
@ -46,26 +45,7 @@ PUBLIC int main(void)
DEBUGEXTRA(("main()\n"));
/* Clear the process table. Anounce each slot as empty and set up mappings
* for proc_addr() and proc_nr() macros. Do the same for the table with
* privilege structures for the system processes.
*/
for (rp = BEG_PROC_ADDR, i = -NR_TASKS; rp < END_PROC_ADDR; ++rp, ++i) {
rp->p_rts_flags = RTS_SLOT_FREE; /* initialize free slot */
rp->p_magic = PMAGIC;
rp->p_nr = i; /* proc number from ptr */
rp->p_endpoint = _ENDPOINT(0, rp->p_nr); /* generation no. 0 */
rp->p_scheduler = NULL; /* no user space scheduler */
rp->p_priority = 0; /* no priority */
rp->p_quantum_size_ms = 0; /* no quantum size */
}
for (sp = BEG_PRIV_ADDR, i = 0; sp < END_PRIV_ADDR; ++sp, ++i) {
sp->s_proc_nr = NONE; /* initialize as free */
sp->s_id = (sys_id_t) i; /* priv structure index */
ppriv_addr[i] = sp; /* priv ptr from number */
sp->s_sig_mgr = NONE; /* clear signal managers */
sp->s_bak_sig_mgr = NONE;
}
proc_init();
/* Set up proc table entries for processes in boot image. The stacks of the
* kernel tasks are initialized to an array in data space. The stacks

28
kernel/proc.c
View file

@ -79,6 +79,34 @@ FORWARD _PROTOTYPE( void enqueue_head, (struct proc *rp));
break; \
}
PUBLIC void proc_init(void)
{
struct proc * rp;
struct priv *sp;
int i;
/* Clear the process table. Anounce each slot as empty and set up
* mappings for proc_addr() and proc_nr() macros. Do the same for the
* table with privilege structures for the system processes.
*/
for (rp = BEG_PROC_ADDR, i = -NR_TASKS; rp < END_PROC_ADDR; ++rp, ++i) {
rp->p_rts_flags = RTS_SLOT_FREE;/* initialize free slot */
rp->p_magic = PMAGIC;
rp->p_nr = i; /* proc number from ptr */
rp->p_endpoint = _ENDPOINT(0, rp->p_nr); /* generation no. 0 */
rp->p_scheduler = NULL; /* no user space scheduler */
rp->p_priority = 0; /* no priority */
rp->p_quantum_size_ms = 0; /* no quantum size */
}
for (sp = BEG_PRIV_ADDR, i = 0; sp < END_PRIV_ADDR; ++sp, ++i) {
sp->s_proc_nr = NONE; /* initialize as free */
sp->s_id = (sys_id_t) i; /* priv structure index */
ppriv_addr[i] = sp; /* priv ptr from number */
sp->s_sig_mgr = NONE; /* clear signal managers */
sp->s_bak_sig_mgr = NONE;
}
}
/*===========================================================================*
* idle *
*===========================================================================*/

1
kernel/proto.h
View file

@ -41,6 +41,7 @@ _PROTOTYPE( __dead void minix_shutdown, (struct timer *tp) );
/* proc.c */
_PROTOTYPE( int do_ipc, (reg_t r1, reg_t r2, reg_t r3) );
_PROTOTYPE( void proc_init, (void) );
_PROTOTYPE( int mini_notify, (const struct proc *src, endpoint_t dst) );
_PROTOTYPE( void enqueue, (struct proc *rp) );
_PROTOTYPE( void dequeue, (const struct proc *rp) );