sanchayanmaity/minix
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Implement getrusage

Browse source 
Implement getrusage.
These fields of struct rusage are not supported and always set to zero at this time
long ru_nswap;           /* swaps */
long ru_inblock;         /* block input operations */
long ru_oublock;         /* block output operations */
long ru_msgsnd;          /* messages sent */
long ru_msgrcv;          /* messages received */
long ru_nvcsw;           /* voluntary context switches */
long ru_nivcsw;          /* involuntary context switches */

test75.c is the unit test for this new function

Change-Id: I3f1eb69de1fce90d087d76773b09021fc6106539
This commit is contained in:
Xiaoguang Sun 2013-06-25 20:41:01 +08:00 committed by Gerrit Code Review
parent 4241cc5d98
commit 64f10ee644
41 changed files with 403 additions and 29 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
distrib/sets/lists/minix/mi
View file

@ -1508,6 +1508,7 @@
./usr/man/man2/getpeername.2 minix-sys
./usr/man/man2/getpid.2 minix-sys
./usr/man/man2/getpriority.2 minix-sys
./usr/man/man2/getrusage.2 minix-sys
./usr/man/man2/getsockname.2 minix-sys
./usr/man/man2/getsockopt.2 minix-sys
./usr/man/man2/gettimeofday.2 minix-sys
@ -4653,6 +4654,7 @@
./usr/tests/minix-posix/test72 minix-sys
./usr/tests/minix-posix/test73 minix-sys
./usr/tests/minix-posix/test74 minix-sys
./usr/tests/minix-posix/test75 minix-sys
./usr/tests/minix-posix/test7 minix-sys
./usr/tests/minix-posix/test8 minix-sys
./usr/tests/minix-posix/test9 minix-sys

3
include/minix/callnr.h
View file

@ -1,4 +1,4 @@
#define NCALLS 118 /* number of system calls allowed */
#define NCALLS 124 /* number of system calls allowed */
/* In case it isn't obvious enough: this list is sorted numerically. */
#define EXIT 1
@ -113,3 +113,4 @@
* really a standalone call.
*/
#define MAPDRIVER 122 /* to VFS, map a device */
#define GETRUSAGE 123 /* to PM, VFS */

10
include/minix/com.h
View file

@ -473,6 +473,7 @@
# define GET_IDLETSC 21 /* get cumulative idle time stamp counter */
# define GET_CPUINFO 23 /* get information about cpus */
# define GET_REGS 24 /* get general process registers */
# define GET_RUSAGE 25 /* get resource usage */
#define I_ENDPT m7_i4 /* calling process (may only be SELF) */
#define I_VAL_PTR m7_p1 /* virtual address at caller */
#define I_VAL_LEN m7_i1 /* max length of value */
@ -1078,8 +1079,10 @@
#define VM_VFS_MMAP (VM_RQ_BASE+46)
#define VM_GETRUSAGE (VM_RQ_BASE+47)
/* Total. */
#define NR_VM_CALLS 47
#define NR_VM_CALLS 48
#define VM_CALL_MASK_SIZE BITMAP_CHUNKS(NR_VM_CALLS)
/* not handled as a normal VM call, thus at the end of the reserved rage */
@ -1294,4 +1297,9 @@
# define BDEV_NOFLAGS 0x00 /* no flags are set */
# define BDEV_FORCEWRITE 0x01 /* force write to disk immediately */
/* Field names for GETRUSAGE related calls */
#define RU_ENDPT m1_i1 /* indicates a process for sys_getrusage */
#define RU_WHO m1_i1 /* who argument in getrusage call */
#define RU_RUSAGE_ADDR m1_p1 /* pointer to struct rusage */
/* _MINIX_COM_H */

2
include/minix/syslib.h
View file

@ -17,6 +17,7 @@
/* Forward declaration */
struct reg86u;
struct rs_pci;
struct rusage;
#define SYSTASK SYSTEM
@ -178,6 +179,7 @@ int send_taskreply(endpoint_t who, endpoint_t endpoint, int status);
#define sys_getpriv(dst, nr) sys_getinfo(GET_PRIV, dst, 0,0, nr)
#define sys_getidletsc(dst) sys_getinfo(GET_IDLETSC, dst, 0,0,0)
#define sys_getregs(dst,nr) sys_getinfo(GET_REGS, dst, 0,0, nr)
#define sys_getrusage(dst, nr) sys_getinfo(GET_RUSAGE, dst, 0,0, nr)
int sys_getinfo(int request, void *val_ptr, int val_len, void *val_ptr2,
int val_len2);
int sys_whoami(endpoint_t *ep, char *name, int namelen, int

5
kernel/proc.c
View file

@ -1906,3 +1906,8 @@ void ser_dump_proc()
print_proc_recursive(pp);
}
}
void increase_proc_signals(struct proc *p)
{
p->p_signal_received++;
}

2
kernel/proc.h
View file

@ -126,6 +126,8 @@ struct proc {
*/
struct { reg_t r1, r2, r3; } p_defer;
u64_t p_signal_received;
#if DEBUG_TRACE
int p_schedules;
#endif

1
kernel/proto.h
View file

@ -76,6 +76,7 @@ int isokendpt_f(endpoint_t e, int *p, int f);
#endif
void proc_no_time(struct proc *p);
void reset_proc_accounting(struct proc *p);
void increase_proc_signals(struct proc *p);
void flag_account(struct proc *p, int flag);
int try_deliver_senda(struct proc *caller_ptr, asynmsg_t *table, size_t
size);

2
kernel/system.c
View file

@ -373,6 +373,7 @@ int send_sig(endpoint_t ep, int sig_nr)
priv = priv(rp);
if(!priv) return ENOENT;
sigaddset(&priv->s_sig_pending, sig_nr);
increase_proc_signals(rp);
mini_notify(proc_addr(SYSTEM), rp->p_endpoint);
return OK;
@ -434,6 +435,7 @@ int sig_nr; /* signal to be sent */
/* Check if the signal is already pending. Process it otherwise. */
if (! sigismember(&rp->p_pending, sig_nr)) {
sigaddset(&rp->p_pending, sig_nr);
increase_proc_signals(rp);
if (! (RTS_ISSET(rp, RTS_SIGNALED))) { /* other pending */
RTS_SET(rp, RTS_SIGNALED | RTS_SIG_PENDING);
if(OK != send_sig(sig_mgr, SIGKSIG))

1
kernel/system/do_fork.c
View file

@ -90,6 +90,7 @@ int do_fork(struct proc * caller, message * m_ptr)
make_zero64(rpc->p_cycles);
make_zero64(rpc->p_kcall_cycles);
make_zero64(rpc->p_kipc_cycles);
rpc->p_signal_received = 0;
/* If the parent is a privileged process, take away the privileges from the
* child process and inhibit it from running by setting the NO_PRIV flag.

28
kernel/system/do_getinfo.c
View file

@ -17,6 +17,7 @@
#if USE_GETINFO
#include <minix/u64.h>
#include <sys/resource.h>
/*===========================================================================*
* update_idle_time *
@ -47,6 +48,7 @@ int do_getinfo(struct proc * caller, message * m_ptr)
int nr_e, nr, r;
int wipe_rnd_bin = -1;
struct proc *p;
struct rusage r_usage;
/* Set source address and length based on request type. */
switch (m_ptr->I_REQUEST) {
@ -180,6 +182,32 @@ int do_getinfo(struct proc * caller, message * m_ptr)
src_vir = (vir_bytes) &idl->p_cycles;
break;
}
case GET_RUSAGE: {
struct proc *target = NULL;
int target_slot = 0;
u64_t usec;
nr_e = (m_ptr->I_VAL_LEN2_E == SELF) ?
caller->p_endpoint : m_ptr->I_VAL_LEN2_E;
if (!isokendpt(nr_e, &target_slot))
return EINVAL;
target = proc_addr(target_slot);
if (isemptyp(target))
return EINVAL;
length = sizeof(r_usage);
memset(&r_usage, 0, sizeof(r_usage));
usec = target->p_user_time * 1000000 / system_hz;
r_usage.ru_utime.tv_sec = usec / 1000000;
r_usage.ru_utime.tv_usec = usec % 100000;
usec = target->p_sys_time * 1000000 / system_hz;
r_usage.ru_stime.tv_sec = usec / 1000000;
r_usage.ru_stime.tv_usec = usec % 100000;
r_usage.ru_nsignals = target->p_signal_received;
src_vir = (vir_bytes) &r_usage;
break;
}
default:
printf("do_getinfo: invalid request %d\n", m_ptr->I_REQUEST);
return(EINVAL);

3
lib/libc/sys-minix/Makefile.inc
View file

@ -18,7 +18,8 @@ SRCS+= accept.c access.c adjtime.c bind.c brk.c sbrk.c m_closefrom.c getsid.c \
sigprocmask.c socket.c socketpair.c stat.c statvfs.c symlink.c \
sync.c syscall.c sysuname.c truncate.c umask.c unlink.c write.c \
utimensat.c utimes.c futimes.c lutimes.c futimens.c \
_exit.c _ucontext.c environ.c __getcwd.c vfork.c sizeup.c init.c
_exit.c _ucontext.c environ.c __getcwd.c vfork.c sizeup.c init.c \
getrusage.c
# Minix specific syscalls.
SRCS+= cprofile.c lseek64.c sprofile.c _mcontext.c

32
lib/libc/sys-minix/getrusage.c Normal file
View file

@ -0,0 +1,32 @@
#include <sys/cdefs.h>
#include "namespace.h"
#include <lib.h>
#include <unistd.h>
#include <sys/resource.h>
int getrusage(int who, struct rusage *r_usage)
{
int rc;
message m;
m.RU_WHO = who;
m.RU_RUSAGE_ADDR = r_usage;
if (r_usage == NULL) {
errno = EFAULT;
return -1;
}
if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN) {
errno = EINVAL;
return -1;
}
memset(r_usage, 0, sizeof(struct rusage));
if ((rc = _syscall(PM_PROC_NR, GETRUSAGE, &m)) < 0)
return rc;
m.RU_RUSAGE_ADDR = r_usage;
if ((rc = _syscall(VFS_PROC_NR, GETRUSAGE, &m)) < 0)
return rc;
m.RU_RUSAGE_ADDR = r_usage;
return _syscall(VM_PROC_NR, VM_GETRUSAGE, &m);
}

4
lib/libc/sys/Makefile.inc
View file

@ -228,7 +228,7 @@ MAN+= accept.2 access.2 acct.2 bind.2 brk.2 chdir.2 \
flock.2 fork.2 fsync.2 getcontext.2 getdents.2 \
getfh.2 getvfsstat.2 getgid.2 getgroups.2 \
getitimer.2 getlogin.2 getpeername.2 getpgrp.2 getpid.2 \
getpriority.2 getrlimit.2 getrusage.2 getsid.2 getsockname.2 \
getpriority.2 getrlimit.2 getsid.2 getsockname.2 \
getsockopt.2 gettimeofday.2 getuid.2 intro.2 ioctl.2 issetugid.2 \
kill.2 kqueue.2 ktrace.2 \
lfs_bmapv.2 lfs_markv.2 lfs_segclean.2 lfs_segwait.2 \
@ -244,7 +244,7 @@ MAN+= accept.2 access.2 acct.2 bind.2 brk.2 chdir.2 \
mprotect.2 mremap.2 msgctl.2 msgget.2 msgrcv.2 msgsnd.2 msync.2 \
munmap.2 nanosleep.2 nfssvc.2 ntp_adjtime.2 open.2 pathconf.2 pipe.2
.else
MAN+= adjtime.2 clock_settime.2 pipe.2
MAN+= adjtime.2 clock_settime.2 pipe.2 getrusage.2
.endif # !defined(__MINIX)
.if !defined(__MINIX)
MAN+= pmc_control.2 poll.2 posix_fadvise.2 profil.2 ptrace.2 __quotactl.2 \

5
lib/libexec/exec_elf.c
View file

@ -228,6 +228,11 @@ int libexec_load_elf(struct exec_info *execi)
if(first || startv > vaddr) startv = vaddr;
first = 0;
if ((ph->p_flags & PF_X) != 0 && execi->text_size < seg_membytes)
execi->text_size = seg_membytes;
else
execi->data_size = seg_membytes;
if(try_mmap && execi->memmap(execi, vaddr, fbytes, foffset, clearend, mmap_prot) == OK) {
#if ELF_DEBUG
printf("libexec: mmap 0x%lx-0x%lx done, clearend 0x%x\n",

2
lib/libexec/libexec.h
View file

@ -32,6 +32,8 @@ struct exec_info {
int allow_setuid; /* Allow set{u,g}id execution? */
vir_bytes stack_size; /* Desired stack size */
vir_bytes load_offset; /* Desired load offset */
vir_bytes text_size; /* Text segment size */
vir_bytes data_size; /* Data segment size */
off_t filesize; /* How big is the file */
/* Callback pointers for use by libexec */

28
servers/pm/misc.c
View file

@ -492,3 +492,31 @@ void *brk_addr;
_brksize = brk_addr;
return 0;
}
/*===========================================================================*
* do_getrusage *
*===========================================================================*/
int do_getrusage()
{
int res = 0;
clock_t user_time = 0;
clock_t sys_time = 0;
struct rusage r_usage;
u64_t usec;
if (m_in.RU_WHO != RUSAGE_SELF && m_in.RU_WHO != RUSAGE_CHILDREN)
return EINVAL;
if ((res = sys_getrusage(&r_usage, who_e)) < 0)
return res;
if (m_in.RU_WHO == RUSAGE_CHILDREN) {
usec = mp->mp_child_utime * 1000000 / sys_hz();
r_usage.ru_utime.tv_sec = usec / 1000000;
r_usage.ru_utime.tv_usec = usec % 1000000;
usec = mp->mp_child_stime * 1000000 / sys_hz();
r_usage.ru_stime.tv_sec = usec / 1000000;
r_usage.ru_stime.tv_usec = usec % 1000000;
}
return sys_datacopy(SELF, &r_usage, who_e,
(vir_bytes) m_in.RU_RUSAGE_ADDR, (vir_bytes) sizeof(r_usage));
}

1
servers/pm/proto.h
View file

@ -56,6 +56,7 @@ int do_getepinfo(void);
int do_getepinfo_o(void);
int do_svrctl(void);
int do_getsetpriority(void);
int do_getrusage(void);
/* schedule.c */
void sched_init(void);

6
servers/pm/table.c
View file

@ -129,6 +129,12 @@ int (*call_vec[])(void) = {
do_gettime, /* 115 = clock_gettime */
do_settime, /* 116 = clock_settime */
no_sys, /* 117 = (vmcall) */
no_sys, /* 118 = unsused */
no_sys, /* 119 = unsused */
no_sys, /* 120 = unsused */
no_sys, /* 121 = (task reply) */
no_sys, /* 122 = (map driver ) */
do_getrusage, /* 123 = getrusage */
};
/* This should not fail with "array size is negative": */
extern int dummy[sizeof(call_vec) == NCALLS * sizeof(call_vec[0]) ? 1 : -1];

4
servers/vfs/exec.c
View file

@ -253,6 +253,8 @@ int pm_exec(endpoint_t proc_e, vir_bytes path, size_t path_len,
okendpt(proc_e, &slot);
rfp = fp = &fproc[slot];
rfp->text_size = 0;
rfp->data_size = 0;
lookup_init(&resolve, fullpath, PATH_NOFLAGS, &execi.vmp, &execi.vp);
@ -409,6 +411,8 @@ int pm_exec(endpoint_t proc_e, vir_bytes path, size_t path_len,
/* Remember the new name of the process */
strlcpy(rfp->fp_name, execi.args.progname, PROC_NAME_LEN);
rfp->text_size = execi.args.text_size;
rfp->data_size = execi.args.data_size;
pm_execfinal:
if(newfilp) unlock_filp(newfilp);

3
servers/vfs/fproc.h
View file

@ -50,6 +50,9 @@ EXTERN struct fproc {
int fp_vp_rdlocks; /* number of read-only locks on vnodes */
int fp_vmnt_rdlocks; /* number of read-only locks on vmnts */
#endif
vir_bytes text_size; /* text segment size of current process */
vir_bytes data_size; /* data segment size of current process */
} fproc[NR_PROCS];
/* fp_flags */

22
servers/vfs/misc.c
View file

@ -30,6 +30,7 @@
#include <minix/u64.h>
#include <sys/ptrace.h>
#include <sys/svrctl.h>
#include <sys/resource.h>
#include "file.h"
#include "fproc.h"
#include "scratchpad.h"
@ -939,3 +940,24 @@ void panic_hook(void)
mthread_stacktraces();
}
/*===========================================================================*
* do_getrusage *
*===========================================================================*/
int do_getrusage(message *UNUSED(m_out))
{
int res;
struct rusage r_usage;
if ((res = sys_datacopy(who_e, (vir_bytes) m_in.RU_RUSAGE_ADDR, SELF,
(vir_bytes) &r_usage, (vir_bytes) sizeof(r_usage))) < 0)
return res;
r_usage.ru_inblock = 0;
r_usage.ru_oublock = 0;
r_usage.ru_ixrss = fp->text_size;
r_usage.ru_idrss = fp->data_size;
r_usage.ru_isrss = DEFAULT_STACK_LIMIT;
return sys_datacopy(SELF, (vir_bytes) &r_usage, who_e,
(vir_bytes) m_in.RU_RUSAGE_ADDR, (phys_bytes) sizeof(r_usage));
}

1
servers/vfs/proto.h
View file

@ -147,6 +147,7 @@ int do_vm_call(message *m_out);
int pm_dumpcore(endpoint_t proc_e, int sig, vir_bytes exe_name);
void * ds_event(void *arg);
int dupvm(struct fproc *fp, int pfd, int *vmfd, struct filp **f);
int do_getrusage(message *m_out);
/* mount.c */
int do_fsready(message *m_out);

6
servers/vfs/table.c
View file

@ -133,6 +133,12 @@ int (*call_vec[])(message *m_out) = {
no_sys, /* 115 = (clock_gettime) */
no_sys, /* 116 = (clock_settime) */
do_vm_call, /* 117 = call from vm */
no_sys, /* 118 = unsused */
no_sys, /* 119 = unsused */
no_sys, /* 120 = unsused */
no_sys, /* 121 = (task reply) */
no_sys, /* 122 = (map driver ) */
do_getrusage, /* 123 = getrusage */
};
/* This should not fail with "array size is negative": */
extern int dummy[sizeof(call_vec) == NCALLS * sizeof(call_vec[0]) ? 1 : -1];

10
servers/vm/exit.c
View file

@ -24,6 +24,14 @@
#include "util.h"
#include "sanitycheck.h"
static void reset_vm_rusage(struct vmproc *vmp)
{
vmp->vm_total = 0;
vmp->vm_total_max = 0;
vmp->vm_minor_page_fault = 0;
vmp->vm_major_page_fault = 0;
}
void free_proc(struct vmproc *vmp)
{
map_free_proc(vmp);
@ -33,6 +41,7 @@ void free_proc(struct vmproc *vmp)
vmp->vm_bytecopies = 0;
#endif
vmp->vm_region_top = 0;
reset_vm_rusage(vmp);
}
void clear_proc(struct vmproc *vmp)
@ -43,6 +52,7 @@ void clear_proc(struct vmproc *vmp)
vmp->vm_bytecopies = 0;
#endif
vmp->vm_region_top = 0;
reset_vm_rusage(vmp);
}
/*===========================================================================*

3
servers/vm/main.c
View file

@ -443,6 +443,9 @@ void init_vm(void)
CALLMAP(VM_MAPCACHEPAGE, do_mapcache);
CALLMAP(VM_SETCACHEPAGE, do_setcache);
/* getrusage */
CALLMAP(VM_GETRUSAGE, do_getrusage);
/* Initialize the structures for queryexit */
init_query_exit();

6
servers/vm/mem_anon.c
View file

@ -22,7 +22,8 @@ static void anon_split(struct vmproc *vmp, struct vir_region *vr,
static int anon_lowshrink(struct vir_region *vr, vir_bytes len);
static int anon_unreference(struct phys_region *pr);
static int anon_pagefault(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb, void *, int);
struct phys_region *ph, int write, vfs_callback_t cb, void *state,
int len, int *io);
static int anon_sanitycheck(struct phys_region *pr, char *file, int line);
static int anon_writable(struct phys_region *pr);
static int anon_resize(struct vmproc *vmp, struct vir_region *vr, vir_bytes l);
@ -51,7 +52,8 @@ static int anon_unreference(struct phys_region *pr)
}
static int anon_pagefault(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb, void *st, int l)
struct phys_region *ph, int write, vfs_callback_t cb, void *state,
int len, int *io)
{
phys_bytes new_page, new_page_cl;
u32_t allocflags;

6
servers/vm/mem_anon_contig.c
View file

@ -11,7 +11,8 @@
static int anon_contig_reference(struct phys_region *, struct phys_region *);
static int anon_contig_unreference(struct phys_region *pr);
static int anon_contig_pagefault(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb, void *st, int);
struct phys_region *ph, int write, vfs_callback_t cb, void *state,
int len, int *io);
static int anon_contig_sanitycheck(struct phys_region *pr, char *file, int line);
static int anon_contig_writable(struct phys_region *pr);
static int anon_contig_resize(struct vmproc *vmp, struct vir_region *vr, vir_bytes l);
@ -29,7 +30,8 @@ struct mem_type mem_type_anon_contig = {
};
static int anon_contig_pagefault(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb, void *s, int l)
struct phys_region *ph, int write, vfs_callback_t cb, void *state,
int len, int *io)
{
panic("anon_contig_pagefault: pagefault cannot happen");
}

8
servers/vm/mem_cache.c
View file

@ -29,7 +29,8 @@ static int cache_sanitycheck(struct phys_region *pr, char *file, int line);
static int cache_writable(struct phys_region *pr);
static int cache_resize(struct vmproc *vmp, struct vir_region *vr, vir_bytes l);
static int cache_pagefault(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb, void *, int);
struct phys_region *ph, int write, vfs_callback_t cb, void *state,
int len, int *io);
struct mem_type mem_type_cache = {
.name = "cache memory",
@ -81,6 +82,7 @@ do_mapcache(message *msg)
struct vir_region *vr;
struct vmproc *caller;
vir_bytes offset;
int io = 0;
if(vm_isokendpt(msg->m_source, &n) != OK) panic("bogus source");
caller = &vmproc[n];
@ -113,7 +115,7 @@ do_mapcache(message *msg)
assert(vr->length == bytes);
assert(offset < vr->length);
if(map_pf(caller, vr, offset, 1, NULL, NULL, 0) != OK) {
if(map_pf(caller, vr, offset, 1, NULL, NULL, 0, &io) != OK) {
map_unmap_region(caller, vr, 0, bytes);
printf("VM: map_pf failed\n");
return ENOMEM;
@ -136,7 +138,7 @@ do_mapcache(message *msg)
static int cache_pagefault(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb,
void *state, int len)
void *state, int len, int *io)
{
vir_bytes offset = ph->offset;
assert(ph->ph->phys == MAP_NONE);

6
servers/vm/mem_directphys.c
View file

@ -17,7 +17,8 @@
static int phys_unreference(struct phys_region *pr);
static int phys_writable(struct phys_region *pr);
static int phys_pagefault(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb, void *, int);
struct phys_region *ph, int write, vfs_callback_t cb, void *state,
int len, int *io);
static int phys_copy(struct vir_region *vr, struct vir_region *newvr);
struct mem_type mem_type_directphys = {
@ -34,7 +35,8 @@ static int phys_unreference(struct phys_region *pr)
}
static int phys_pagefault(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb, void *st, int len)
struct phys_region *ph, int write, vfs_callback_t cb, void *state,
int len, int *io)
{
phys_bytes arg = region->param.phys, phmem;
assert(arg != MAP_NONE);

7
servers/vm/mem_file.c
View file

@ -18,7 +18,8 @@ static void mappedfile_split(struct vmproc *vmp, struct vir_region *vr,
struct vir_region *r1, struct vir_region *r2);
static int mappedfile_unreference(struct phys_region *pr);
static int mappedfile_pagefault(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t callback, void *, int);
struct phys_region *ph, int write, vfs_callback_t callback, void *state,
int len, int *io);
static int mappedfile_sanitycheck(struct phys_region *pr, char *file, int line);
static int mappedfile_writable(struct phys_region *pr);
static int mappedfile_copy(struct vir_region *vr, struct vir_region *newvr);
@ -72,7 +73,7 @@ static int cow_block(struct vmproc *vmp, struct vir_region *region,
static int mappedfile_pagefault(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb,
void *state, int statelen)
void *state, int statelen, int *io)
{
u32_t allocflags;
int procfd = region->param.file.fdref->fd;
@ -123,7 +124,7 @@ static int mappedfile_pagefault(struct vmproc *vmp, struct vir_region *region,
printf("VM: mappedfile_pagefault: vfs_request failed\n");
return ENOMEM;
}
*io = 1;
return SUSPEND;
}

7
servers/vm/mem_shared.c
View file

@ -15,7 +15,8 @@
static int shared_unreference(struct phys_region *pr);
static int shared_pagefault(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb, void *, int);
struct phys_region *ph, int write, vfs_callback_t cb, void *state,
int len, int *io);
static int shared_sanitycheck(struct phys_region *pr, char *file, int line);
static int shared_writable(struct phys_region *pr);
static void shared_delete(struct vir_region *region);
@ -110,7 +111,7 @@ static void shared_delete(struct vir_region *region)
static int shared_pagefault(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb,
void *state, int statelen)
void *state, int statelen, int *io)
{
struct vir_region *src_region;
struct vmproc *src_vmp;
@ -126,7 +127,7 @@ static int shared_pagefault(struct vmproc *vmp, struct vir_region *region,
if(!(pr = physblock_get(src_region, ph->offset))) {
int r;
if((r=map_pf(src_vmp, src_region, ph->offset, write,
NULL, NULL, 0)) != OK)
NULL, NULL, 0, io)) != OK)
return r;
if(!(pr = physblock_get(src_region, ph->offset))) {
panic("missing region after pagefault handling");

3
servers/vm/memtype.h
View file

@ -16,7 +16,8 @@ typedef struct mem_type {
int (*ev_reference)(struct phys_region *pr, struct phys_region *newpr);
int (*ev_unreference)(struct phys_region *pr);
int (*ev_pagefault)(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb, void *, int);
struct phys_region *ph, int write, vfs_callback_t cb, void *state,
int len, int *io);
int (*ev_resize)(struct vmproc *vmp, struct vir_region *vr, vir_bytes len);
void (*ev_split)(struct vmproc *vmp, struct vir_region *vr,
struct vir_region *r1, struct vir_region *r2);

9
servers/vm/pagefaults.c
View file

@ -70,6 +70,7 @@ static void handle_pagefault(endpoint_t ep, vir_bytes addr, u32_t err, int retry
struct vir_region *region;
vir_bytes offset;
int p, wr = PFERR_WRITE(err);
int io = 0;
if(vm_isokendpt(ep, &p) != OK)
panic("handle_pagefault: endpoint wrong: %d", ep);
@ -111,7 +112,7 @@ static void handle_pagefault(endpoint_t ep, vir_bytes addr, u32_t err, int retry
/* Access is allowed; handle it. */
if(retry) {
result = map_pf(vmp, region, offset, wr, NULL, NULL, 0);
result = map_pf(vmp, region, offset, wr, NULL, NULL, 0, &io);
assert(result != SUSPEND);
} else {
struct pf_state state;
@ -119,8 +120,12 @@ static void handle_pagefault(endpoint_t ep, vir_bytes addr, u32_t err, int retry
state.vaddr = addr;
state.err = err;
result = map_pf(vmp, region, offset, wr, pf_cont,
&state, sizeof(state));
&state, sizeof(state), &io);
}
if (io)
vmp->vm_major_page_fault++;
else
vmp->vm_minor_page_fault++;
if(result == SUSPEND) {
return;

4
servers/vm/proto.h
View file

@ -41,6 +41,7 @@ int get_stack_ptr(int proc_nr, vir_bytes *sp);
int do_info(message *);
int swap_proc_slot(struct vmproc *src_vmp, struct vmproc *dst_vmp);
int swap_proc_dyn_data(struct vmproc *src_vmp, struct vmproc *dst_vmp);
int do_getrusage(message *m);
/* exit.c */
void clear_proc(struct vmproc *vmp);
@ -143,7 +144,8 @@ int map_proc_copy_from(struct vmproc *dst, struct vmproc *src, struct
struct vir_region *map_lookup(struct vmproc *vmp, vir_bytes addr,
struct phys_region **pr);
int map_pf(struct vmproc *vmp, struct vir_region *region, vir_bytes
offset, int write, vfs_callback_t pf_callback, void *state, int);
offset, int write, vfs_callback_t pf_callback, void *state, int len,
int *io);
int map_pin_memory(struct vmproc *vmp);
int map_handle_memory(struct vmproc *vmp, struct vir_region *region,
vir_bytes offset, vir_bytes len, int write, vfs_callback_t cb,

15
servers/vm/region.c
View file

@ -73,14 +73,21 @@ void physblock_set(struct vir_region *region, vir_bytes offset,
struct phys_region *newphysr)
{
int i;
struct vmproc *proc;
assert(!(offset % VM_PAGE_SIZE));
assert(offset >= 0 && offset < region->length);
i = offset/VM_PAGE_SIZE;
proc = region->parent;
assert(proc);
if(newphysr) {
assert(!region->physblocks[i]);
assert(newphysr->offset == offset);
proc->vm_total += VM_PAGE_SIZE;
if (proc->vm_total > proc->vm_total_max)
proc->vm_total_max = proc->vm_total;
} else {
assert(region->physblocks[i]);
proc->vm_total -= VM_PAGE_SIZE;
}
region->physblocks[i] = newphysr;
}
@ -671,7 +678,7 @@ u32_t vrallocflags(u32_t flags)
/*===========================================================================*
* map_pf *
*===========================================================================*/
int map_pf(vmp, region, offset, write, pf_callback, state, len)
int map_pf(vmp, region, offset, write, pf_callback, state, len, io)
struct vmproc *vmp;
struct vir_region *region;
vir_bytes offset;
@ -679,6 +686,7 @@ int write;
vfs_callback_t pf_callback;
void *state;
int len;
int *io;
{
struct phys_region *ph;
int r = OK;
@ -725,7 +733,7 @@ int len;
assert(ph->ph);
if((r = ph->memtype->ev_pagefault(vmp,
region, ph, write, pf_callback, state, len)) == SUSPEND) {
region, ph, write, pf_callback, state, len, io)) == SUSPEND) {
return SUSPEND;
}
@ -774,6 +782,7 @@ int statelen;
{
vir_bytes offset, lim;
int r;
int io = 0;
assert(length > 0);
lim = start_offset + length;
@ -781,7 +790,7 @@ int statelen;
for(offset = start_offset; offset < lim; offset += VM_PAGE_SIZE)
if((r = map_pf(vmp, region, offset, write,
cb, state, statelen)) != OK)
cb, state, statelen, &io)) != OK)
return r;
return OK;

24
servers/vm/utility.c
View file

@ -23,6 +23,7 @@
#include <assert.h>
#include <sys/param.h>
#include <sys/mman.h>
#include <sys/resource.h>
#include "proto.h"
#include "glo.h"
@ -320,4 +321,27 @@ int _brk(void *addr)
return 0;
}
/*===========================================================================*
* do_getrusage *
*===========================================================================*/
int do_getrusage(message *m)
{
int res, slot;
struct vmproc *vmp;
struct rusage r_usage;
if ((res = vm_isokendpt(m->m_source, &slot)) != OK)
return ESRCH;
vmp = &vmproc[slot];
if ((res = sys_datacopy(m->m_source, (vir_bytes) m->RU_RUSAGE_ADDR,
SELF, (vir_bytes) &r_usage, (vir_bytes) sizeof(r_usage))) < 0)
return res;
r_usage.ru_maxrss = vmp->vm_total_max;
r_usage.ru_minflt = vmp->vm_minor_page_fault;
r_usage.ru_majflt = vmp->vm_major_page_fault;
return sys_datacopy(SELF, &r_usage, m->m_source,
(vir_bytes) m->RU_RUSAGE_ADDR, (vir_bytes) sizeof(r_usage));
}

4
servers/vm/vmproc.h
View file

@ -25,6 +25,10 @@ struct vmproc {
#if VMSTATS
int vm_bytecopies;
#endif
vir_bytes vm_total;
vir_bytes vm_total_max;
u64_t vm_minor_page_fault;
u64_t vm_major_page_fault;
};
/* Bits for vm_flags */

29
sys/sys/resource.h
View file

@ -47,6 +47,34 @@
#define PRIO_PGRP 1
#define PRIO_USER 2
/*
* Resource utilization information.
*/
#define RUSAGE_SELF 0
#define RUSAGE_CHILDREN -1
struct rusage {
struct timeval ru_utime; /* user time used */
struct timeval ru_stime; /* system time used */
long ru_maxrss; /* max resident set size */
#define ru_first ru_ixrss
long ru_ixrss; /* integral shared memory size */
long ru_idrss; /* integral unshared data " */
long ru_isrss; /* integral unshared stack " */
long ru_minflt; /* page reclaims */
long ru_majflt; /* page faults */
long ru_nswap; /* swaps */
long ru_inblock; /* block input operations */
long ru_oublock; /* block output operations */
long ru_msgsnd; /* messages sent */
long ru_msgrcv; /* messages received */
long ru_nsignals; /* signals received */
long ru_nvcsw; /* voluntary context switches */
long ru_nivcsw; /* involuntary " */
#define ru_last ru_nivcsw
};
/*
* Resource limits
*/
@ -78,6 +106,7 @@ struct rlimit
__BEGIN_DECLS
int getpriority(int, int);
int getrlimit(int, struct rlimit *);
int getrusage(int, struct rusage *);
int setpriority(int, int, int);
__END_DECLS

2
test/Makefile
View file

@ -49,7 +49,7 @@ MINIX_TESTS= \
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 \
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 \
41 42 43 44 45 46 48 49 50 52 53 54 55 56 58 59 60 \
61 64 65 66 67 68 69 70 71 72 73 74
61 64 65 66 67 68 69 70 71 72 73 74 75
.if ${MACHINE_ARCH} == "i386"
MINIX_TESTS+= \

2
test/run
View file

@ -24,7 +24,7 @@ setuids="test11 test33 test43 test44 test46 test56 test60 test61 test65 \
alltests=" 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 \
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 \
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 \
61 62 63 64 65 66 67 68 69 70 71 72 \
61 62 63 64 65 66 67 68 69 70 71 72 75 \
sh1.sh sh2.sh interp.sh"
tests_no=`expr 0`

114
test/test75.c Normal file
View file

@ -0,0 +1,114 @@
/* Test 75 - getrusage functionality test.
*/
#include <sys/resource.h>
#include <sys/time.h>
#include <stdio.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include "common.h"
#define CHECK_ZERO_FIELD(rusage, field) \
if (rusage.field != 0) \
em(1, #field " must be zero");
#define CHECK_NOT_ZERO_FIELD(rusage, field) \
if (rusage.field == 0) \
em(1, #field " can't be zero");
#define CHECK_EQUAL_FIELD(rusage1, rusage2, field) \
if (rusage1.field != rusage2.field) \
em(1, #field " of " #rusage1 " doesn't equal to " \
#field " of " #rusage2);
static void spin()
{
struct timeval start_time;
struct timeval end_time;
int loop = 0;
if (gettimeofday(&start_time, NULL) == -1) {
e(1);
exit(1);
}
memset(&end_time, 0, sizeof(end_time));
while (start_time.tv_sec + 10 > end_time.tv_sec) {
if ((++loop % 10000) == 0) {
if (gettimeofday(&end_time, NULL) == -1) {
e(1);
exit(1);
}
}
}
}
int
main(int argc, char *argv[])
{
struct rusage r_usage1;
struct rusage r_usage2;
struct rusage r_usage3;
pid_t child;
int status = 0;
start(75);
if ((getrusage(RUSAGE_SELF + 1, &r_usage1) != -1 || errno != EINVAL) ||
(getrusage(RUSAGE_CHILDREN - 1, &r_usage1) != -1 ||
errno != EINVAL) || (getrusage(RUSAGE_SELF, NULL) != -1 ||
errno != EFAULT)) {
e(1);
exit(1);
}
spin();
if (getrusage(RUSAGE_SELF, &r_usage1) != 0) {
e(1);
exit(1);
}
CHECK_NOT_ZERO_FIELD(r_usage1, ru_utime.tv_sec);
CHECK_NOT_ZERO_FIELD(r_usage1, ru_maxrss);
CHECK_NOT_ZERO_FIELD(r_usage1, ru_ixrss);
CHECK_NOT_ZERO_FIELD(r_usage1, ru_idrss);
CHECK_NOT_ZERO_FIELD(r_usage1, ru_isrss);
if (getrusage(RUSAGE_CHILDREN, &r_usage2) != 0) {
e(1);
exit(1);
}
CHECK_ZERO_FIELD(r_usage2, ru_utime.tv_sec);
CHECK_ZERO_FIELD(r_usage2, ru_utime.tv_usec);
CHECK_NOT_ZERO_FIELD(r_usage2, ru_maxrss);
CHECK_NOT_ZERO_FIELD(r_usage2, ru_ixrss);
CHECK_NOT_ZERO_FIELD(r_usage2, ru_idrss);
CHECK_NOT_ZERO_FIELD(r_usage2, ru_isrss);
CHECK_EQUAL_FIELD(r_usage1, r_usage2, ru_ixrss);
CHECK_EQUAL_FIELD(r_usage1, r_usage2, ru_idrss);
CHECK_EQUAL_FIELD(r_usage1, r_usage2, ru_isrss);
if ((child = fork()) != 0) {
if (child != waitpid(child, &status, 0)) {
e(1);
exit(1);
}
if (WEXITSTATUS(status) != 0) {
e(1);
exit(1);
}
if (getrusage(RUSAGE_CHILDREN, &r_usage3) != 0) {
e(1);
exit(1);
}
CHECK_NOT_ZERO_FIELD(r_usage3, ru_utime.tv_sec);
CHECK_NOT_ZERO_FIELD(r_usage3, ru_maxrss);
CHECK_NOT_ZERO_FIELD(r_usage3, ru_ixrss);
CHECK_NOT_ZERO_FIELD(r_usage3, ru_idrss);
CHECK_NOT_ZERO_FIELD(r_usage3, ru_isrss);
CHECK_EQUAL_FIELD(r_usage1, r_usage3, ru_ixrss);
CHECK_EQUAL_FIELD(r_usage1, r_usage3, ru_idrss);
CHECK_EQUAL_FIELD(r_usage1, r_usage3, ru_isrss);
} else {
spin();
exit(0);
}
quit();
return 0;
}