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Message type for SYS_SETALARM

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Change-Id: I2c2ee24c19085cbd1e7ffba7b2db714b2561ff17
This commit is contained in:
Lionel Sambuc
2014-05-21 10:52:39 +02:00
parent 85e7cb92a9
commit 30eae10274
5 changed files with 30 additions and 27 deletions
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16
kernel/system/do_setalarm.c
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@@ -2,9 +2,9 @@
* m_type: SYS_SETALARM
*
* The parameters for this kernel call are:
* m2_l1: ALRM_EXP_TIME (alarm's expiration time)
* m2_i2: ALRM_ABS_TIME (expiration time is absolute?)
* m2_l1: ALRM_TIME_LEFT (return seconds left of previous)
* m_lsys_krn_sys_setalarm.exp_time (alarm's expiration time)
* m_lsys_krn_sys_setalarm.abs_time (expiration time is absolute?)
* m_lsys_krn_sys_setalarm.time_left (return seconds left of previous)
*/
#include "kernel/system.h"
@@ -24,12 +24,12 @@ int do_setalarm(struct proc * caller, message * m_ptr)
/* A process requests a synchronous alarm, or wants to cancel its alarm. */
long exp_time; /* expiration time for this alarm */
int use_abs_time; /* use absolute or relative time */
minix_timer_t *tp; /* the process' timer structure */
minix_timer_t *tp; /* the process' timer structure */
clock_t uptime; /* placeholder for current uptime */
/* Extract shared parameters from the request message. */
exp_time = m_ptr->ALRM_EXP_TIME; /* alarm's expiration time */
use_abs_time = m_ptr->ALRM_ABS_TIME; /* flag for absolute time */
exp_time = m_ptr->m_lsys_krn_sys_setalarm.exp_time; /* alarm's expiration time */
use_abs_time = m_ptr->m_lsys_krn_sys_setalarm.abs_time; /* flag for absolute time */
if (! (priv(caller)->s_flags & SYS_PROC)) return(EPERM);
/* Get the timer structure and set the parameters for this alarm. */
@@ -40,9 +40,9 @@ int do_setalarm(struct proc * caller, message * m_ptr)
/* Return the ticks left on the previous alarm. */
uptime = get_monotonic();
if ((tp->tmr_exp_time != TMR_NEVER) && (uptime < tp->tmr_exp_time) ) {
m_ptr->ALRM_TIME_LEFT = (tp->tmr_exp_time - uptime);
m_ptr->m_lsys_krn_sys_setalarm.time_left = (tp->tmr_exp_time - uptime);
} else {
m_ptr->ALRM_TIME_LEFT = 0;
m_ptr->m_lsys_krn_sys_setalarm.time_left = 0;
}
/* Finally, (re)set the timer depending on the expiration time. */