[syscalls] Remove mx_timer_start

Change-Id: I35863de22152735f0050a01e388711f2b8e73050

docs/syscalls.md

@@ -101,7 +101,6 @@
 
 ## Timers
 + [timer_create](syscalls/timer_create.md) - create a timer object
-+ [timer_start (deprecated)](syscalls/timer_start.md) - start a timer
 + [timer_set](syscalls/timer_set.md) - start a timer
 + [timer_cancel](syscalls/timer_cancel.md) - cancel a timer
 

docs/syscalls/timer_cancel.md

@@ -16,11 +16,11 @@ mx_status_t mx_timer_cancel(mx_handle_t handle);
 ## DESCRIPTION
 
 **mx_timer_cancel**() cancels a pending timer that was started with
-**timer_start**().
+**timer_set**().
 
 Upon success the pending timer is canceled and the MX_TIMER_SIGNALED
 signal is de-asserted. If a new pending timer is immediately needed
-rather than calling **timer_cancel**() first, call **timer_start**()
+rather than calling **timer_cancel**() first, call **timer_set**()
 with the new deadline.
 
 ## RETURN VALUE
@@ -36,9 +36,9 @@ In the event of failure, a negative error value is returned.
 
 ## NOTE
 
-Calling this function before **timer_start**() has no effect.
+Calling this function before **timer_set**() has no effect.
 
 ## SEE ALSO
 
 [timer_create](timer_create.md),
-[timer_start](timer_start.md)
+[timer_set](timer_set.md)

docs/syscalls/timer_create.md

@@ -37,7 +37,7 @@ of failure, a negative error value is returned.
 
 ## SEE ALSO
 
-[timer_start](timer_start.md),
+[timer_set](timer_set.md),
 [timer_cancel](timer_cancel.md),
 [deadline_after](deadline_after.md),
 [handle_close](handle_close.md)

docs/syscalls/timer_start.md

@@ -1,26 +0,0 @@
-# mx_timer_start
-
-## NAME
-
-timer_start - start a timer  (deprecated)
-
-## SYNOPSIS
-
-```
-#include <magenta/syscalls.h>
-
-mx_status_t mx_timer_start(mx_handle_t handle, mx_time_t deadline, mx_duration_t period,
-                           mx_duration_t slack);
-
-```
-
-## DESCRIPTION
-
-This syscall is deprecated, use **mx_timer_set()**.
-
-## SEE ALSO
-
-[timer_create](timer_create.md),
-[timer_set](timer_set.md),
-[timer_cancel](timer_cancel.md),
-[deadline_after](deadline_after.md)

kernel/lib/syscalls/syscalls_timer.cpp

@@ -49,19 +49,6 @@ mx_status_t sys_timer_create(uint32_t options, uint32_t clock_id, user_ptr<mx_ha
     return MX_OK;
 }
 
-// This syscall is deprecated. The clients should transiton to sys_timer_set().
-mx_status_t sys_timer_start(
-    mx_handle_t handle, mx_time_t deadline, mx_duration_t period, mx_duration_t slack) {
-    auto up = ProcessDispatcher::GetCurrent();
-
-    mxtl::RefPtr<TimerDispatcher> timer;
-    mx_status_t status = up->GetDispatcherWithRights(handle, MX_RIGHT_WRITE, &timer);
-    if (status != MX_OK)
-        return status;
-
-    return timer->Set(deadline, 0u, period);
-}
-
 mx_status_t sys_timer_set(
     mx_handle_t handle, mx_time_t deadline, mx_duration_t slack) {
     auto up = ProcessDispatcher::GetCurrent();

system/public/magenta/syscalls.sysgen

@@ -339,10 +339,6 @@ syscall timer_create
     (options: uint32_t, clock_id: uint32_t)
     returns (mx_status_t, out: mx_handle_t handle_acquire);
 
-syscall timer_start
-    (handle: mx_handle_t, deadline: mx_time_t, period: mx_duration_t, slack: mx_duration_t)
-    returns (mx_status_t);
-
 syscall timer_set
     (handle: mx_handle_t, deadline: mx_time_t, slack: mx_duration_t)
     returns (mx_status_t);

system/ulib/mx/include/mx/timer.h

@@ -30,11 +30,6 @@ public:
 
     static mx_status_t create(uint32_t options, uint32_t clock_id, timer* result);
 
-    // This method is deprecated.
-    mx_status_t start(mx_time_t deadline, mx_duration_t period, mx_duration_t slack) const {
-        return mx_timer_start(get(), deadline, period, slack);
-    }
-
     mx_status_t set(mx_time_t deadline, mx_duration_t slack) const {
         return mx_timer_set(get(), deadline, slack);
     }