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Message type for PM_ITIMER

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Change-Id: I191ba9630028d9822f6a2fd4d7d3f461eb4d1493
This commit is contained in:
Lionel Sambuc 2014-05-13 08:43:49 +02:00
parent 1ae60bd2e8
commit a5ed845b20
5 changed files with 24 additions and 19 deletions
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5
include/minix/callnr.h
View file

@ -76,11 +76,6 @@
#define PM_SYSUNAME_LEN m1_i3 /* char * */
#define PM_SYSUNAME_VALUE m1_p1 /* size_t */
/* Field names for the getitimer(2)/setitimer(2) calls. */
#define PM_ITIMER_WHICH m1_i1 /* int */
#define PM_ITIMER_VALUE m1_p1 /* const struct itimerval * */
#define PM_ITIMER_OVALUE m1_p2 /* struct itimerval * */
/* Field names for the execve(2) call. */
#define PM_EXEC_NAME m1_p1 /* const char * */
#define PM_EXEC_NAMELEN m1_i1 /* size_t */

10
include/minix/ipc.h
View file

@ -145,6 +145,15 @@ typedef struct {
} mess_sigcalls;
_ASSERT_MSG_SIZE(mess_sigcalls);
typedef struct {
int which;
vir_bytes value; /* const struct itimerval * */
vir_bytes ovalue; /* struct itimerval * */
uint8_t padding[44];
} mess_lc_pm_itimer;
_ASSERT_MSG_SIZE(mess_lc_pm_itimer);
typedef struct {
time_t sec;
@ -922,6 +931,7 @@ typedef struct {
mess_fs_vfs_readsuper m_fs_vfs_readsuper;
mess_fs_vfs_readwrite m_fs_vfs_readwrite;
mess_lc_pm_itimer m_lc_pm_itimer;
mess_lc_pm_time m_lc_pm_time;
mess_lc_pm_waitpid m_lc_pm_waitpid;

6
lib/libc/sys-minix/getitimer.c
View file

@ -14,9 +14,9 @@ int getitimer(int which, struct itimerval *value)
message m;
memset(&m, 0, sizeof(m));
m.PM_ITIMER_WHICH = which;
m.PM_ITIMER_VALUE = NULL; /* only retrieve the timer */
m.PM_ITIMER_OVALUE = (char *) value;
m.m_lc_pm_itimer.which = which;
m.m_lc_pm_itimer.value = 0; /* only retrieve the timer */
m.m_lc_pm_itimer.ovalue = (vir_bytes)value;
return _syscall(PM_PROC_NR, PM_ITIMER, &m);
}

6
lib/libc/sys-minix/setitimer.c
View file

@ -23,9 +23,9 @@ int setitimer(int which, const struct itimerval *__restrict value,
}
memset(&m, 0, sizeof(m));
m.PM_ITIMER_WHICH = which;
m.PM_ITIMER_VALUE = (char *) __UNCONST(value);
m.PM_ITIMER_OVALUE = (char *) ovalue;
m.m_lc_pm_itimer.which = which;
m.m_lc_pm_itimer.value = (vir_bytes)value;
m.m_lc_pm_itimer.ovalue = (vir_bytes)ovalue;
return _syscall(PM_PROC_NR, PM_ITIMER, &m);
}

10
servers/pm/alarm.c
View file

@ -95,15 +95,15 @@ int do_itimer()
int r, which;
/* Make sure 'which' is one of the defined timers. */
which = m_in.PM_ITIMER_WHICH;
which = m_in.m_lc_pm_itimer.which;
if (which < 0 || which >= NR_ITIMERS) return(EINVAL);
/* Determine whether to set and/or return the given timer value, based on
* which of the value and ovalue parameters are nonzero. At least one of
* them must be nonzero.
*/
setval = (m_in.PM_ITIMER_VALUE != NULL);
getval = (m_in.PM_ITIMER_OVALUE != NULL);
setval = (m_in.m_lc_pm_itimer.value != 0);
getval = (m_in.m_lc_pm_itimer.ovalue != 0);
if (!setval && !getval) return(EINVAL);
@ -111,7 +111,7 @@ int do_itimer()
* Also, make sure its fields have sane values.
*/
if (setval) {
r = sys_datacopy(who_e, (vir_bytes) m_in.PM_ITIMER_VALUE,
r = sys_datacopy(who_e, m_in.m_lc_pm_itimer.value,
PM_PROC_NR, (vir_bytes)&value, (phys_bytes)sizeof(value));
if (r != OK) return(r);
@ -144,7 +144,7 @@ int do_itimer()
/* If requested, copy the old interval timer to user space. */
if (r == OK && getval) {
r = sys_datacopy(PM_PROC_NR, (vir_bytes)&ovalue,
who_e, (vir_bytes) m_in.PM_ITIMER_OVALUE,
who_e, m_in.m_lc_pm_itimer.ovalue,
(phys_bytes)sizeof(ovalue));
}