xref: /xnu-8020.101.4/libsyscall/wrappers/libproc/libproc_internal.h (revision e7776783b89a353188416a9a346c6cdb4928faad)

/*
 * Copyright (c) 2010-2018 Apple Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 *
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 *
 * @APPLE_LICENSE_HEADER_END@
 */
#ifndef _LIBPROC_INTERNALH_
#define _LIBPROC_INTERNALH_

#include <TargetConditionals.h>

#include <sys/cdefs.h>
#include <libproc.h>
#include <libproc_private.h>
#include <mach/message.h>

__BEGIN_DECLS

/* CPU monitor action */
#define PROC_SETCPU_ACTION_NONE         0
#define PROC_SETCPU_ACTION_THROTTLE     1

int proc_setcpu_percentage(pid_t pid, int action, int percentage) __OSX_AVAILABLE_STARTING(__MAC_10_12_2, __IPHONE_5_0);
int proc_clear_cpulimits(pid_t pid) __OSX_AVAILABLE_STARTING(__MAC_10_12_2, __IPHONE_5_0);

/* CPU limits, applies to current thread only. 0% unsets limit */
int proc_setthread_cpupercent(uint8_t percentage, uint32_t ms_refill) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_5_0);

#if (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR)

/* CPU monitor action, continued */
#define PROC_SETCPU_ACTION_SUSPEND      2
#define PROC_SETCPU_ACTION_TERMINATE    3
#define PROC_SETCPU_ACTION_NOTIFY       4

int proc_setcpu_deadline(pid_t pid, int action, uint64_t deadline) __OSX_AVAILABLE_STARTING(__MAC_NA, __IPHONE_5_0);
int proc_setcpu_percentage_withdeadline(pid_t pid, int action, int percentage, uint64_t deadline) __OSX_AVAILABLE_STARTING(__MAC_NA, __IPHONE_5_0);

#define PROC_APPSTATE_NONE              0
#define PROC_APPSTATE_ACTIVE            1
#define PROC_APPSTATE_BACKGROUND        2
#define PROC_APPSTATE_NONUI             3
#define PROC_APPSTATE_INACTIVE          4

int proc_setappstate(int pid, int appstate);
int proc_appstate(int pid, int * appstatep);

#define PROC_DEVSTATUS_SHORTTERM        1
#define PROC_DEVSTATUS_LONGTERM         2

int proc_devstatusnotify(int devicestatus);

#define PROC_PIDBIND_CLEAR      0
#define PROC_PIDBIND_SET        1
int proc_pidbind(int pid, uint64_t threadid, int bind);

/*
 * High level check to see if a process is allowed to use HW
 * resources reserved for foreground applications.
 * Returns:
 *	 1 if the PID is allowed
 *	 0 if the PID is NOT allowed
 *	<0 on error
 *
 *	When 0 is returned, 'reason' is set to indicate why
 *	the pid is not allowed to use foreground-only hardware.
 *	Reasons returned by the kernel are found in <sys/proc_info.h>
 *
 *	When <0 is returned, errno indicates the reason
 *	for the failure.
 */
int proc_can_use_foreground_hw(int pid, uint32_t *reason);

#else /* (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) */

/* resume the process suspend due to low VM resource */
int proc_clear_vmpressure(pid_t pid);
/* set self as the one who is going to resume suspended processes due to low VM. Need to be root */
int proc_set_owner_vmpressure(void);

/* mark yourself to delay idle sleep on disk IO */
int proc_set_delayidlesleep(void);
/* Reset yourself to delay idle sleep on disk IO, if already set */
int proc_clear_delayidlesleep(void);


/* sub policies for PROC_POLICY_APPTYPE */
#define PROC_POLICY_OSX_APPTYPE_NONE            0
#define PROC_POLICY_OSX_APPTYPE_TAL             1       /* TAL based launched */
#define PROC_POLICY_OSX_APPTYPE_WIDGET          2       /* for dashboard client */
#define PROC_POLICY_OSX_APPTYPE_DASHCLIENT      2       /* rename to move away from widget */

/*
 * Resumes the backgrounded TAL or dashboard client. Only priv users can disable TAL apps.
 * Valid apptype are PROC_POLICY_OSX_APPTYPE_DASHCLIENT and PROC_POLICY_OSX_APPTYPE_TAL.
 * Returns 0 on success otherwise appropriate error code.
 */
int proc_disable_apptype(pid_t pid, int apptype);
int proc_enable_apptype(pid_t pid, int apptype);

#endif /* (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) */

/* mark process as importance donating */
int proc_donate_importance_boost(void);

/* DEPRECATED: supported for backward compatibility only */
/* check the message for an importance boost and take an assertion on it */
int proc_importance_assertion_begin_with_msg(mach_msg_header_t  *msg,
    mach_msg_trailer_t *trailer,
    uint64_t *assertion_token) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_8, __MAC_10_10, __IPHONE_6_0, __IPHONE_8_0);

/* DEPRECATED: supported for backward compatibility only */
/* drop an assertion */
int proc_importance_assertion_complete(uint64_t assertion_handle);

/* check the message for a App De-Nap boost and take an assertion on it */
int proc_denap_assertion_begin_with_msg(mach_msg_header_t  *msg,
    uint64_t *assertion_token);

/* drop a de-nap assertion */
int proc_denap_assertion_complete(uint64_t assertion_handle);

/* ongoing percent-over-time CPU monitor */
int proc_set_cpumon_defaults(pid_t pid) __OSX_AVAILABLE_STARTING(__MAC_10_8, __IPHONE_6_0);
int proc_set_cpumon_params(pid_t pid, int percentage, int interval) __OSX_AVAILABLE_STARTING(__MAC_10_8, __IPHONE_6_0);
int proc_set_cpumon_params_fatal(pid_t pid, int percentage, int interval) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0);

int proc_get_cpumon_params(pid_t pid, int *percentage, int *interval) __OSX_AVAILABLE_STARTING(__MAC_10_8, __IPHONE_6_0);
int proc_resume_cpumon(pid_t pid) __OSX_AVAILABLE_STARTING(__MAC_10_12, __IPHONE_10_0);
int proc_disable_cpumon(pid_t pid) __OSX_AVAILABLE_STARTING(__MAC_10_8, __IPHONE_6_0);

/* ongoing wakes/second monitor */
int proc_set_wakemon_defaults(pid_t pid) __OSX_AVAILABLE_STARTING(__MAC_10_9, __IPHONE_7_0);
int proc_set_wakemon_params(pid_t pid, int rate_hz, int flags) __OSX_AVAILABLE_STARTING(__MAC_10_9, __IPHONE_7_0);
int proc_get_wakemon_params(pid_t pid, int *rate_hz, int *flags) __OSX_AVAILABLE_STARTING(__MAC_10_9, __IPHONE_7_0);
int proc_disable_wakemon(pid_t pid) __OSX_AVAILABLE_STARTING(__MAC_10_9, __IPHONE_7_0);

int proc_reset_footprint_interval(pid_t pid) __OSX_AVAILABLE_STARTING(__MAC_10_14, __IPHONE_12_0);

/* request trace buffer collection */
int proc_trace_log(pid_t pid, uint64_t uniqueid) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0);

/* proc_info call to get the originator information */
int proc_pidoriginatorinfo(int flavor, void *buffer, int buffersize) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0);

int proc_listcoalitions(int flavor, int coaltype, void *buffer, int buffersize) __OSX_AVAILABLE_STARTING(__MAC_10_11, __IPHONE_8_3);

/* get scheduler stats for current thread */
int proc_current_thread_schedinfo(void *buffer, size_t buffersize);

#if !TARGET_OS_SIMULATOR

#define PROC_SUPPRESS_SUCCESS                (0)
#define PROC_SUPPRESS_BAD_ARGUMENTS         (-1)
#define PROC_SUPPRESS_OLD_GENERATION        (-2)
#define PROC_SUPPRESS_ALREADY_SUPPRESSED    (-3)

int proc_suppress(pid_t pid, uint64_t *generation);
#endif /* !TARGET_OS_SIMULATOR */

__END_DECLS

#endif /* _LIBPROC_INTERNALH_ */