void Metachunk::mangle() {
// Mangle the payload of the chunk and not the links that
// maintain list of chunks.
HeapWord* start = (HeapWord*)(bottom() + overhead());
size_t word_size = capacity_word_size() - overhead();
Copy::fill_to_words(start, word_size, metadata_chunk_initialize);
}
/**
* schedulability test based on the demand bound function (DBF).
*/
static inline int dbf_test(int cpu , resch_task_t *rt)
{
resch_task_t *p;
unsigned long L, Lmax;
/* if the execution time is zero, it is obviously schedulable. */
if (rt->C == 0) {
return true;
}
/* length of dbf test. */
if ((Lmax = dbf_len(cpu, rt)) == 0) {
return false;
}
/* check for deadlines of tasks assigned to @cpu. */
p = global_highest_prio_task();
while (p) {
if (split_is_on_cpu(p, cpu)) {
L = edf_wm_task[p->rid].deadline;
}
else if (task_is_on_cpu(p, cpu)) {
L = p->deadline;
}
else {
p = global_next_prio_task(p);
continue;
}
while (L <= Lmax) {
if (dbf_cpu(L, cpu) + dbf_task(rt, L, cpu) +
overhead(rt, L, cpu) > L) {
return false;
}
L += p->period;
}
p = global_next_prio_task(p);
}
/* check for deadlines of @rt. */
L = rt->deadline;
while (L <= Lmax) {
if (dbf_cpu(L, cpu) + dbf_task(rt, L, cpu) +
overhead(rt, L, cpu) > L) {
return false;
}
L += rt->period;
}
return true;
}
void grow_right(int size)
{
check(size>=0);
if(size==0)
return;
//overhead
if(size<=overhead())
{
//update
_count+=size;
return;
}
//save
self buffer;
buffer.attach(*this);
//allocate
allocate(buffer.count()+size);
//move
move(0,buffer,0,buffer.count());
}
void Metachunk::mangle(juint word_value) {
// Overwrite the payload of the chunk and not the links that
// maintain list of chunks.
HeapWord* start = (HeapWord*)initial_top();
size_t size = word_size() - overhead();
Copy::fill_to_words(start, size, word_value);
}
void netlist_t::print_stats() const
{
if (nperftime_t::enabled)
{
std::vector<size_t> index;
for (size_t i=0; i<m_devices.size(); i++)
index.push_back(i);
std::sort(index.begin(), index.end(),
[&](size_t i1, size_t i2) { return m_devices[i1]->m_stat_total_time.total() < m_devices[i2]->m_stat_total_time.total(); });
nperftime_t::type total_time(0);
uint_least64_t total_count(0);
for (auto & j : index)
{
auto entry = m_devices[j].get();
log().verbose("Device {1:20} : {2:12} {3:12} {4:15} {5:12}", entry->name(),
entry->m_stat_call_count(), entry->m_stat_total_time.count(),
entry->m_stat_total_time.total(), entry->m_stat_inc_active());
total_time += entry->m_stat_total_time.total();
total_count += entry->m_stat_total_time.count();
}
nperftime_t overhead;
nperftime_t test;
overhead.start();
for (int j=0; j<100000;j++)
{
test.start();
test.stop();
}
overhead.stop();
nperftime_t::type total_overhead = overhead()
* static_cast<nperftime_t::type>(total_count)
/ static_cast<nperftime_t::type>(200000);
log().verbose("Queue Pushes {1:15}", queue().m_prof_call());
log().verbose("Queue Moves {1:15}", queue().m_prof_sortmove());
log().verbose("Total loop {1:15}", m_stat_mainloop());
/* Only one serialization should be counted in total time */
/* But two are contained in m_stat_mainloop */
log().verbose("Total devices {1:15}", total_time);
log().verbose("");
log().verbose("Take the next lines with a grain of salt. They depend on the measurement implementation.");
log().verbose("Total overhead {1:15}", total_overhead);
nperftime_t::type overhead_per_pop = (m_stat_mainloop()-2*total_overhead - (total_time - total_overhead))
/ static_cast<nperftime_t::type>(queue().m_prof_call());
log().verbose("Overhead per pop {1:11}", overhead_per_pop );
log().verbose("");
for (auto &entry : m_devices)
{
if (entry->m_stat_inc_active() > 3 * entry->m_stat_total_time.count())
log().verbose("HINT({}, NO_DEACTIVATE)", entry->name());
}
}
}
duration_type overhead_clock()
{
std::size_t iterations( 10);
std::vector< boost::uint64_t > overhead( iterations, 0);
for ( std::size_t i = 0; i < iterations; ++i)
std::generate(
overhead.begin(), overhead.end(),
clock_overhead() );
BOOST_ASSERT( overhead.begin() != overhead.end() );
return duration_type( std::accumulate( overhead.begin(), overhead.end(), 0) / iterations);
}
inline
zeit_t overhead_zeit()
{
std::size_t iterations( 10);
std::vector< zeit_t > overhead( iterations, 0);
for ( std::size_t i( 0); i < iterations; ++i)
std::generate(
overhead.begin(), overhead.end(),
measure_zeit() );
BOOST_ASSERT( overhead.begin() != overhead.end() );
return std::accumulate( overhead.begin(), overhead.end(), 0) / iterations;
}
int s2n_record_rounded_write_payload_size(struct s2n_connection *conn, uint16_t size_without_overhead)
{
uint16_t max_fragment_size = size_without_overhead;
struct s2n_crypto_parameters *active = conn->server;
if (conn->mode == S2N_CLIENT) {
active = conn->client;
}
/* Round the fragment size down to be block aligned */
if (active->cipher_suite->record_alg->cipher->type == S2N_CBC) {
max_fragment_size -= max_fragment_size % active->cipher_suite->record_alg->cipher->io.cbc.block_size;
} else if (active->cipher_suite->record_alg->cipher->type == S2N_COMPOSITE) {
max_fragment_size -= max_fragment_size % active->cipher_suite->record_alg->cipher->io.comp.block_size;
/* Composite digest length */
max_fragment_size -= active->cipher_suite->record_alg->cipher->io.comp.mac_key_size;
/* Padding length byte */
max_fragment_size -= 1;
}
return max_fragment_size - overhead(conn);
}
void reserve()
{
//overhead
if(overhead()<=threshold())
return;
//normalize size
//save
self buffer;
buffer.attach(*this);
//allocate
allocate(buffer.count());
//move
move(0,buffer,0,buffer.count());
}
static Bitu DOS_21Handler(void) {
if (((reg_ah != 0x50) && (reg_ah != 0x51) && (reg_ah != 0x62) && (reg_ah != 0x64)) && (reg_ah<0x6c)) {
DOS_PSP psp(dos.psp());
psp.SetStack(RealMake(SegValue(ss),reg_sp-18));
}
char name1[DOSNAMEBUF+2+DOS_NAMELENGTH_ASCII];
char name2[DOSNAMEBUF+2+DOS_NAMELENGTH_ASCII];
static Bitu time_start = 0; //For emulating temporary time changes.
switch (reg_ah) {
case 0x00: /* Terminate Program */
DOS_Terminate(mem_readw(SegPhys(ss)+reg_sp+2),false,0);
break;
case 0x01: /* Read character from STDIN, with echo */
{
Bit8u c;Bit16u n=1;
dos.echo=true;
DOS_ReadFile(STDIN,&c,&n);
reg_al=c;
dos.echo=false;
}
break;
case 0x02: /* Write character to STDOUT */
{
Bit8u c=reg_dl;Bit16u n=1;
DOS_WriteFile(STDOUT,&c,&n);
//Not in the official specs, but happens nonetheless. (last written character)
reg_al = c;// reg_al=(c==9)?0x20:c; //Officially: tab to spaces
}
break;
case 0x03: /* Read character from STDAUX */
{
Bit16u port = real_readw(0x40,0);
if(port!=0 && serialports[0]) {
Bit8u status;
// RTS/DTR on
IO_WriteB(port+4,0x3);
serialports[0]->Getchar(®_al, &status, true, 0xFFFFFFFF);
}
}
break;
case 0x04: /* Write Character to STDAUX */
{
Bit16u port = real_readw(0x40,0);
if(port!=0 && serialports[0]) {
// RTS/DTR on
IO_WriteB(port+4,0x3);
serialports[0]->Putchar(reg_dl,true,true, 0xFFFFFFFF);
// RTS off
IO_WriteB(port+4,0x1);
}
}
break;
case 0x05: /* Write Character to PRINTER */
E_Exit("DOS:Unhandled call %02X",reg_ah);
break;
case 0x06: /* Direct Console Output / Input */
switch (reg_dl) {
case 0xFF: /* Input */
{
//Simulate DOS overhead for timing sensitive games
//MM1
overhead();
//TODO Make this better according to standards
if (!DOS_GetSTDINStatus()) {
reg_al=0;
CALLBACK_SZF(true);
break;
}
Bit8u c;Bit16u n=1;
DOS_ReadFile(STDIN,&c,&n);
reg_al=c;
CALLBACK_SZF(false);
break;
}
default:
{
Bit8u c = reg_dl;Bit16u n = 1;
DOS_WriteFile(STDOUT,&c,&n);
reg_al = reg_dl;
}
break;
};
break;
case 0x07: /* Character Input, without echo */
{
Bit8u c;Bit16u n=1;
DOS_ReadFile (STDIN,&c,&n);
reg_al=c;
break;
};
case 0x08: /* Direct Character Input, without echo (checks for breaks officially :)*/
{
Bit8u c;Bit16u n=1;
DOS_ReadFile (STDIN,&c,&n);
reg_al=c;
break;
};
case 0x09: /* Write string to STDOUT */
{
Bit8u c;Bit16u n=1;
PhysPt buf=SegPhys(ds)+reg_dx;
while ((c=mem_readb(buf++))!='$') {
DOS_WriteFile(STDOUT,&c,&n);
}
}
break;
case 0x0a: /* Buffered Input */
{
//TODO ADD Break checkin in STDIN but can't care that much for it
PhysPt data=SegPhys(ds)+reg_dx;
Bit8u free=mem_readb(data);
Bit8u read=0;Bit8u c;Bit16u n=1;
if (!free) break;
free--;
for(;;) {
DOS_ReadFile(STDIN,&c,&n);
if (c == 8) { // Backspace
if (read) { //Something to backspace.
// STDOUT treats backspace as non-destructive.
DOS_WriteFile(STDOUT,&c,&n);
c = ' '; DOS_WriteFile(STDOUT,&c,&n);
c = 8; DOS_WriteFile(STDOUT,&c,&n);
--read;
}
continue;
}
if (read == free && c != 13) { // Keyboard buffer full
Bit8u bell = 7;
DOS_WriteFile(STDOUT, &bell, &n);
continue;
}
DOS_WriteFile(STDOUT,&c,&n);
mem_writeb(data+read+2,c);
if (c==13)
break;
read++;
};
mem_writeb(data+1,read);
break;
};
case 0x0b: /* Get STDIN Status */
if (!DOS_GetSTDINStatus()) {reg_al=0x00;}
else {reg_al=0xFF;}
//Simulate some overhead for timing issues
//Tankwar menu (needs maybe even more)
overhead();
break;
case 0x0c: /* Flush Buffer and read STDIN call */
{
/* flush buffer if STDIN is CON */
Bit8u handle=RealHandle(STDIN);
if (handle!=0xFF && Files[handle] && Files[handle]->IsName("CON")) {
Bit8u c;Bit16u n;
while (DOS_GetSTDINStatus()) {
n=1; DOS_ReadFile(STDIN,&c,&n);
}
}
switch (reg_al) {
case 0x1:
case 0x6:
case 0x7:
case 0x8:
case 0xa:
{
Bit8u oldah=reg_ah;
reg_ah=reg_al;
DOS_21Handler();
reg_ah=oldah;
}
break;
default:
// LOG_ERROR("DOS:0C:Illegal Flush STDIN Buffer call %d",reg_al);
reg_al=0;
break;
}
}
break;
//TODO Find out the values for when reg_al!=0
//TODO Hope this doesn't do anything special
case 0x0d: /* Disk Reset */
//Sure let's reset a virtual disk
break;
case 0x0e: /* Select Default Drive */
DOS_SetDefaultDrive(reg_dl);
reg_al=DOS_DRIVES;
break;
case 0x0f: /* Open File using FCB */
if(DOS_FCBOpen(SegValue(ds),reg_dx)){
reg_al=0;
}else{
reg_al=0xff;
}
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x0f FCB-fileopen used, result:al=%d",reg_al);
break;
case 0x10: /* Close File using FCB */
if(DOS_FCBClose(SegValue(ds),reg_dx)){
reg_al=0;
}else{
reg_al=0xff;
}
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x10 FCB-fileclose used, result:al=%d",reg_al);
break;
case 0x11: /* Find First Matching File using FCB */
if(DOS_FCBFindFirst(SegValue(ds),reg_dx)) reg_al = 0x00;
else reg_al = 0xFF;
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x11 FCB-FindFirst used, result:al=%d",reg_al);
break;
case 0x12: /* Find Next Matching File using FCB */
if(DOS_FCBFindNext(SegValue(ds),reg_dx)) reg_al = 0x00;
else reg_al = 0xFF;
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x12 FCB-FindNext used, result:al=%d",reg_al);
break;
case 0x13: /* Delete File using FCB */
if (DOS_FCBDeleteFile(SegValue(ds),reg_dx)) reg_al = 0x00;
else reg_al = 0xFF;
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x16 FCB-Delete used, result:al=%d",reg_al);
break;
case 0x14: /* Sequential read from FCB */
reg_al = DOS_FCBRead(SegValue(ds),reg_dx,0);
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x14 FCB-Read used, result:al=%d",reg_al);
break;
case 0x15: /* Sequential write to FCB */
reg_al=DOS_FCBWrite(SegValue(ds),reg_dx,0);
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x15 FCB-Write used, result:al=%d",reg_al);
break;
case 0x16: /* Create or truncate file using FCB */
if (DOS_FCBCreate(SegValue(ds),reg_dx)) reg_al = 0x00;
else reg_al = 0xFF;
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x16 FCB-Create used, result:al=%d",reg_al);
break;
case 0x17: /* Rename file using FCB */
if (DOS_FCBRenameFile(SegValue(ds),reg_dx)) reg_al = 0x00;
else reg_al = 0xFF;
break;
case 0x1b: /* Get allocation info for default drive */
if (!DOS_GetAllocationInfo(0,®_cx,®_al,®_dx)) reg_al=0xff;
break;
case 0x1c: /* Get allocation info for specific drive */
if (!DOS_GetAllocationInfo(reg_dl,®_cx,®_al,®_dx)) reg_al=0xff;
break;
case 0x21: /* Read random record from FCB */
{
Bit16u toread=1;
reg_al = DOS_FCBRandomRead(SegValue(ds),reg_dx,&toread,true);
}
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x21 FCB-Random read used, result:al=%d",reg_al);
break;
case 0x22: /* Write random record to FCB */
{
Bit16u towrite=1;
reg_al=DOS_FCBRandomWrite(SegValue(ds),reg_dx,&towrite,true);
}
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x22 FCB-Random write used, result:al=%d",reg_al);
break;
case 0x23: /* Get file size for FCB */
if (DOS_FCBGetFileSize(SegValue(ds),reg_dx)) reg_al = 0x00;
else reg_al = 0xFF;
break;
case 0x24: /* Set Random Record number for FCB */
DOS_FCBSetRandomRecord(SegValue(ds),reg_dx);
break;
case 0x27: /* Random block read from FCB */
reg_al = DOS_FCBRandomRead(SegValue(ds),reg_dx,®_cx,false);
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x27 FCB-Random(block) read used, result:al=%d",reg_al);
break;
case 0x28: /* Random Block write to FCB */
reg_al=DOS_FCBRandomWrite(SegValue(ds),reg_dx,®_cx,false);
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x28 FCB-Random(block) write used, result:al=%d",reg_al);
break;
case 0x29: /* Parse filename into FCB */
{
Bit8u difference;
char string[1024];
MEM_StrCopy(SegPhys(ds)+reg_si,string,1023); // 1024 toasts the stack
reg_al=FCB_Parsename(SegValue(es),reg_di,reg_al ,string, &difference);
reg_si+=difference;
}
LOG(LOG_FCB,LOG_NORMAL)("DOS:29:FCB Parse Filename, result:al=%d",reg_al);
break;
case 0x19: /* Get current default drive */
reg_al=DOS_GetDefaultDrive();
break;
case 0x1a: /* Set Disk Transfer Area Address */
dos.dta(RealMakeSeg(ds,reg_dx));
break;
case 0x25: /* Set Interrupt Vector */
RealSetVec(reg_al,RealMakeSeg(ds,reg_dx));
break;
case 0x26: /* Create new PSP */
DOS_NewPSP(reg_dx,DOS_PSP(dos.psp()).GetSize());
reg_al=0xf0; /* al destroyed */
break;
case 0x2a: /* Get System Date */
{
reg_ax=0; // get time
CALLBACK_RunRealInt(0x1a);
if(reg_al) DOS_AddDays(reg_al);
int a = (14 - dos.date.month)/12;
int y = dos.date.year - a;
int m = dos.date.month + 12*a - 2;
reg_al=(dos.date.day+y+(y/4)-(y/100)+(y/400)+(31*m)/12) % 7;
reg_cx=dos.date.year;
reg_dh=dos.date.month;
reg_dl=dos.date.day;
}
break;
case 0x2b: /* Set System Date */
if (reg_cx<1980) { reg_al=0xff;break;}
if ((reg_dh>12) || (reg_dh==0)) { reg_al=0xff;break;}
if (reg_dl==0) { reg_al=0xff;break;}
if (reg_dl>DOS_DATE_months[reg_dh]) {
if(!((reg_dh==2)&&(reg_cx%4 == 0)&&(reg_dl==29))) // february pass
{ reg_al=0xff;break; }
}
dos.date.year=reg_cx;
dos.date.month=reg_dh;
dos.date.day=reg_dl;
reg_al=0;
break;
case 0x2c: { /* Get System Time */
reg_ax=0; // get time
CALLBACK_RunRealInt(0x1a);
if(reg_al) DOS_AddDays(reg_al);
reg_ah=0x2c;
Bitu ticks=((Bitu)reg_cx<<16)|reg_dx;
if(time_start<=ticks) ticks-=time_start;
Bitu time=(Bitu)((100.0/((double)PIT_TICK_RATE/65536.0)) * (double)ticks);
reg_dl=(Bit8u)((Bitu)time % 100); // 1/100 seconds
time/=100;
reg_dh=(Bit8u)((Bitu)time % 60); // seconds
time/=60;
reg_cl=(Bit8u)((Bitu)time % 60); // minutes
time/=60;
reg_ch=(Bit8u)((Bitu)time % 24); // hours
//Simulate DOS overhead for timing-sensitive games
//Robomaze 2
overhead();
break;
}
case 0x2d: /* Set System Time */
LOG(LOG_DOSMISC,LOG_ERROR)("DOS:Set System Time not supported");
//Check input parameters nonetheless
if( reg_ch > 23 || reg_cl > 59 || reg_dh > 59 || reg_dl > 99 )
reg_al = 0xff;
else { //Allow time to be set to zero. Restore the orginal time for all other parameters. (QuickBasic)
if (reg_cx == 0 && reg_dx == 0) {time_start = mem_readd(BIOS_TIMER);LOG_MSG("Warning: game messes with DOS time!");}
else time_start = 0;
reg_al = 0;
}
break;
case 0x2e: /* Set Verify flag */
dos.verify=(reg_al==1);
break;
case 0x2f: /* Get Disk Transfer Area */
SegSet16(es,RealSeg(dos.dta()));
reg_bx=RealOff(dos.dta());
break;
case 0x30: /* Get DOS Version */
if (reg_al==0) reg_bh=0xFF; /* Fake Microsoft DOS */
if (reg_al==1) reg_bh=0x10; /* DOS is in HMA */
reg_al=dos.version.major;
reg_ah=dos.version.minor;
/* Serialnumber */
reg_bl=0x00;
reg_cx=0x0000;
break;
case 0x31: /* Terminate and stay resident */
// Important: This service does not set the carry flag!
DOS_ResizeMemory(dos.psp(),®_dx);
DOS_Terminate(dos.psp(),true,reg_al);
break;
case 0x1f: /* Get drive parameter block for default drive */
case 0x32: /* Get drive parameter block for specific drive */
{ /* Officially a dpb should be returned as well. The disk detection part is implemented */
Bit8u drive=reg_dl;
if (!drive || reg_ah==0x1f) drive = DOS_GetDefaultDrive();
else drive--;
if (Drives[drive]) {
reg_al = 0x00;
SegSet16(ds,dos.tables.dpb);
reg_bx = drive;//Faking only the first entry (that is the driveletter)
LOG(LOG_DOSMISC,LOG_ERROR)("Get drive parameter block.");
} else {
reg_al=0xff;
}
}
break;
case 0x33: /* Extended Break Checking */
switch (reg_al) {
case 0:reg_dl=dos.breakcheck;break; /* Get the breakcheck flag */
case 1:dos.breakcheck=(reg_dl>0);break; /* Set the breakcheck flag */
case 2:{bool old=dos.breakcheck;dos.breakcheck=(reg_dl>0);reg_dl=old;}break;
case 3: /* Get cpsw */
/* Fallthrough */
case 4: /* Set cpsw */
LOG(LOG_DOSMISC,LOG_ERROR)("Someone playing with cpsw %x",reg_ax);
break;
case 5:reg_dl=3;break;//TODO should be z /* Always boot from c: :) */
case 6: /* Get true version number */
reg_bl=dos.version.major;
reg_bh=dos.version.minor;
reg_dl=dos.version.revision;
reg_dh=0x10; /* Dos in HMA */
break;
default:
LOG(LOG_DOSMISC,LOG_ERROR)("Weird 0x33 call %2X",reg_al);
reg_al =0xff;
break;
}
break;
case 0x34: /* Get INDos Flag */
SegSet16(es,DOS_SDA_SEG);
reg_bx=DOS_SDA_OFS + 0x01;
break;
case 0x35: /* Get interrupt vector */
reg_bx=real_readw(0,((Bit16u)reg_al)*4);
SegSet16(es,real_readw(0,((Bit16u)reg_al)*4+2));
break;
case 0x36: /* Get Free Disk Space */
{
Bit16u bytes,clusters,free;
Bit8u sectors;
if (DOS_GetFreeDiskSpace(reg_dl,&bytes,§ors,&clusters,&free)) {
reg_ax=sectors;
reg_bx=free;
reg_cx=bytes;
reg_dx=clusters;
} else {
Bit8u drive=reg_dl;
if (drive==0) drive=DOS_GetDefaultDrive();
else drive--;
if (drive<2) {
// floppy drive, non-present drivesdisks issue floppy check through int24
// (critical error handler); needed for Mixed up Mother Goose (hook)
// CALLBACK_RunRealInt(0x24);
}
reg_ax=0xffff; // invalid drive specified
}
}
break;
case 0x37: /* Get/Set Switch char Get/Set Availdev thing */
//TODO Give errors for these functions to see if anyone actually uses this shit-
switch (reg_al) {
case 0:
reg_al=0;reg_dl=0x2f;break; /* always return '/' like dos 5.0+ */
case 1:
reg_al=0;break;
case 2:
reg_al=0;reg_dl=0x2f;break;
case 3:
reg_al=0;break;
};
LOG(LOG_MISC,LOG_ERROR)("DOS:0x37:Call for not supported switchchar");
break;
case 0x38: /* Set Country Code */
if (reg_al==0) { /* Get country specidic information */
PhysPt dest = SegPhys(ds)+reg_dx;
MEM_BlockWrite(dest,dos.tables.country,0x18);
reg_ax = reg_bx = 0x01;
CALLBACK_SCF(false);
break;
} else { /* Set country code */
LOG(LOG_MISC,LOG_ERROR)("DOS:Setting country code not supported");
}
CALLBACK_SCF(true);
break;
case 0x39: /* MKDIR Create directory */
MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF);
if (DOS_MakeDir(name1)) {
reg_ax=0x05; /* ax destroyed */
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3a: /* RMDIR Remove directory */
MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF);
if (DOS_RemoveDir(name1)) {
reg_ax=0x05; /* ax destroyed */
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
LOG(LOG_MISC,LOG_NORMAL)("Remove dir failed on %s with error %X",name1,dos.errorcode);
}
break;
case 0x3b: /* CHDIR Set current directory */
MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF);
if (DOS_ChangeDir(name1)) {
reg_ax=0x00; /* ax destroyed */
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3c: /* CREATE Create of truncate file */
MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF);
if (DOS_CreateFile(name1,reg_cx,®_ax)) {
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3d: /* OPEN Open existing file */
MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF);
if (DOS_OpenFile(name1,reg_al,®_ax)) {
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3e: /* CLOSE Close file */
if (DOS_CloseFile(reg_bx)) {
// reg_al=0x01; /* al destroyed. Refcount */
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3f: /* READ Read from file or device */
{
Bit16u toread=reg_cx;
dos.echo=true;
if (DOS_ReadFile(reg_bx,dos_copybuf,&toread)) {
MEM_BlockWrite(SegPhys(ds)+reg_dx,dos_copybuf,toread);
reg_ax=toread;
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
modify_cycles(reg_ax);
dos.echo=false;
break;
}
case 0x40: /* WRITE Write to file or device */
{
Bit16u towrite=reg_cx;
MEM_BlockRead(SegPhys(ds)+reg_dx,dos_copybuf,towrite);
if (DOS_WriteFile(reg_bx,dos_copybuf,&towrite)) {
reg_ax=towrite;
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
modify_cycles(reg_ax);
break;
};
case 0x41: /* UNLINK Delete file */
MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF);
if (DOS_UnlinkFile(name1)) {
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x42: /* LSEEK Set current file position */
{
Bit32u pos=(reg_cx<<16) + reg_dx;
if (DOS_SeekFile(reg_bx,&pos,reg_al)) {
reg_dx=(Bit16u)(pos >> 16);
reg_ax=(Bit16u)(pos & 0xFFFF);
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
}
int s2n_record_write(struct s2n_connection *conn, uint8_t content_type, struct s2n_blob *in)
{
struct s2n_blob out, iv, aad;
uint8_t padding = 0;
uint16_t block_size = 0;
uint8_t aad_gen[S2N_TLS_MAX_AAD_LEN] = { 0 };
uint8_t aad_iv[S2N_TLS_MAX_IV_LEN] = { 0 };
uint8_t *sequence_number = conn->server->server_sequence_number;
struct s2n_hmac_state *mac = &conn->server->server_record_mac;
struct s2n_session_key *session_key = &conn->server->server_key;
const struct s2n_cipher_suite *cipher_suite = conn->server->cipher_suite;
uint8_t *implicit_iv = conn->server->server_implicit_iv;
if (conn->mode == S2N_CLIENT) {
sequence_number = conn->client->client_sequence_number;
mac = &conn->client->client_record_mac;
session_key = &conn->client->client_key;
cipher_suite = conn->client->cipher_suite;
implicit_iv = conn->client->client_implicit_iv;
}
S2N_ERROR_IF(s2n_stuffer_data_available(&conn->out), S2N_ERR_BAD_MESSAGE);
uint8_t mac_digest_size;
GUARD(s2n_hmac_digest_size(mac->alg, &mac_digest_size));
/* Before we do anything, we need to figure out what the length of the
* fragment is going to be.
*/
uint16_t data_bytes_to_take = MIN(in->size, s2n_record_max_write_payload_size(conn));
uint16_t extra = overhead(conn);
/* If we have padding to worry about, figure that out too */
if (cipher_suite->record_alg->cipher->type == S2N_CBC) {
block_size = cipher_suite->record_alg->cipher->io.cbc.block_size;
if (((data_bytes_to_take + extra) % block_size)) {
padding = block_size - ((data_bytes_to_take + extra) % block_size);
}
} else if (cipher_suite->record_alg->cipher->type == S2N_COMPOSITE) {
block_size = cipher_suite->record_alg->cipher->io.comp.block_size;
}
/* Start the MAC with the sequence number */
GUARD(s2n_hmac_update(mac, sequence_number, S2N_TLS_SEQUENCE_NUM_LEN));
/* Now that we know the length, start writing the record */
GUARD(s2n_stuffer_write_uint8(&conn->out, content_type));
GUARD(s2n_record_write_protocol_version(conn));
/* First write a header that has the payload length, this is for the MAC */
GUARD(s2n_stuffer_write_uint16(&conn->out, data_bytes_to_take));
if (conn->actual_protocol_version > S2N_SSLv3) {
GUARD(s2n_hmac_update(mac, conn->out.blob.data, S2N_TLS_RECORD_HEADER_LENGTH));
} else {
/* SSLv3 doesn't include the protocol version in the MAC */
GUARD(s2n_hmac_update(mac, conn->out.blob.data, 1));
GUARD(s2n_hmac_update(mac, conn->out.blob.data + 3, 2));
}
/* Compute non-payload parts of the MAC(seq num, type, proto vers, fragment length) for composite ciphers.
* Composite "encrypt" will MAC the payload data and fill in padding.
*/
if (cipher_suite->record_alg->cipher->type == S2N_COMPOSITE) {
/* Only fragment length is needed for MAC, but the EVP ctrl function needs fragment length + eiv len. */
uint16_t payload_and_eiv_len = data_bytes_to_take;
if (conn->actual_protocol_version > S2N_TLS10) {
payload_and_eiv_len += block_size;
}
/* Outputs number of extra bytes required for MAC and padding */
int pad_and_mac_len;
GUARD(cipher_suite->record_alg->cipher->io.comp.initial_hmac(session_key, sequence_number, content_type, conn->actual_protocol_version,
payload_and_eiv_len, &pad_and_mac_len));
extra += pad_and_mac_len;
}
/* Rewrite the length to be the actual fragment length */
uint16_t actual_fragment_length = data_bytes_to_take + padding + extra;
GUARD(s2n_stuffer_wipe_n(&conn->out, 2));
GUARD(s2n_stuffer_write_uint16(&conn->out, actual_fragment_length));
/* If we're AEAD, write the sequence number as an IV, and generate the AAD */
if (cipher_suite->record_alg->cipher->type == S2N_AEAD) {
struct s2n_stuffer iv_stuffer = {{0}};
iv.data = aad_iv;
iv.size = sizeof(aad_iv);
GUARD(s2n_stuffer_init(&iv_stuffer, &iv));
if (cipher_suite->record_alg->flags & S2N_TLS12_AES_GCM_AEAD_NONCE) {
/* Partially explicit nonce. See RFC 5288 Section 3 */
GUARD(s2n_stuffer_write_bytes(&conn->out, sequence_number, S2N_TLS_SEQUENCE_NUM_LEN));
GUARD(s2n_stuffer_write_bytes(&iv_stuffer, implicit_iv, cipher_suite->record_alg->cipher->io.aead.fixed_iv_size));
GUARD(s2n_stuffer_write_bytes(&iv_stuffer, sequence_number, S2N_TLS_SEQUENCE_NUM_LEN));
} else if (cipher_suite->record_alg->flags & S2N_TLS12_CHACHA_POLY_AEAD_NONCE) {
/* Fully implicit nonce. See RFC7905 Section 2 */
uint8_t four_zeroes[4] = { 0 };
GUARD(s2n_stuffer_write_bytes(&iv_stuffer, four_zeroes, 4));
GUARD(s2n_stuffer_write_bytes(&iv_stuffer, sequence_number, S2N_TLS_SEQUENCE_NUM_LEN));
for(int i = 0; i < cipher_suite->record_alg->cipher->io.aead.fixed_iv_size; i++) {
aad_iv[i] = aad_iv[i] ^ implicit_iv[i];
}
} else {
S2N_ERROR(S2N_ERR_INVALID_NONCE_TYPE);
}
/* Set the IV size to the amount of data written */
iv.size = s2n_stuffer_data_available(&iv_stuffer);
aad.data = aad_gen;
aad.size = sizeof(aad_gen);
struct s2n_stuffer ad_stuffer = {{0}};
GUARD(s2n_stuffer_init(&ad_stuffer, &aad));
GUARD(s2n_aead_aad_init(conn, sequence_number, content_type, data_bytes_to_take, &ad_stuffer));
} else if (cipher_suite->record_alg->cipher->type == S2N_CBC || cipher_suite->record_alg->cipher->type == S2N_COMPOSITE) {
iv.size = block_size;
iv.data = implicit_iv;
/* For TLS1.1/1.2; write the IV with random data */
if (conn->actual_protocol_version > S2N_TLS10) {
GUARD(s2n_get_public_random_data(&iv));
GUARD(s2n_stuffer_write(&conn->out, &iv));
}
}
/* We are done with this sequence number, so we can increment it */
struct s2n_blob seq = {.data = sequence_number,.size = S2N_TLS_SEQUENCE_NUM_LEN };
GUARD(s2n_increment_sequence_number(&seq));
/* Write the plaintext data */
out.data = in->data;
out.size = data_bytes_to_take;
GUARD(s2n_stuffer_write(&conn->out, &out));
GUARD(s2n_hmac_update(mac, out.data, out.size));
/* Write the digest */
uint8_t *digest = s2n_stuffer_raw_write(&conn->out, mac_digest_size);
notnull_check(digest);
GUARD(s2n_hmac_digest(mac, digest, mac_digest_size));
GUARD(s2n_hmac_reset(mac));
if (cipher_suite->record_alg->cipher->type == S2N_CBC) {
/* Include padding bytes, each with the value 'p', and
* include an extra padding length byte, also with the value 'p'.
*/
for (int i = 0; i <= padding; i++) {
GUARD(s2n_stuffer_write_uint8(&conn->out, padding));
}
}
/* Rewind to rewrite/encrypt the packet */
GUARD(s2n_stuffer_rewrite(&conn->out));
/* Skip the header */
GUARD(s2n_stuffer_skip_write(&conn->out, S2N_TLS_RECORD_HEADER_LENGTH));
uint16_t encrypted_length = data_bytes_to_take + mac_digest_size;
switch (cipher_suite->record_alg->cipher->type) {
case S2N_AEAD:
GUARD(s2n_stuffer_skip_write(&conn->out, cipher_suite->record_alg->cipher->io.aead.record_iv_size));
encrypted_length += cipher_suite->record_alg->cipher->io.aead.tag_size;
break;
case S2N_CBC:
if (conn->actual_protocol_version > S2N_TLS10) {
/* Leave the IV alone and unencrypted */
GUARD(s2n_stuffer_skip_write(&conn->out, iv.size));
}
/* Encrypt the padding and the padding length byte too */
encrypted_length += padding + 1;
break;
case S2N_COMPOSITE:
/* Composite CBC expects a pointer starting at explicit IV: [Explicit IV | fragment | MAC | padding | padding len ]
* extra will account for the explicit IV len(if applicable), MAC digest len, padding len + padding byte.
*/
encrypted_length += extra;
break;
default:
break;
}
/* Do the encryption */
struct s2n_blob en = {0};
en.size = encrypted_length;
en.data = s2n_stuffer_raw_write(&conn->out, en.size);
notnull_check(en.data);
switch (cipher_suite->record_alg->cipher->type) {
case S2N_STREAM:
GUARD(cipher_suite->record_alg->cipher->io.stream.encrypt(session_key, &en, &en));
break;
case S2N_CBC:
GUARD(cipher_suite->record_alg->cipher->io.cbc.encrypt(session_key, &iv, &en, &en));
/* Copy the last encrypted block to be the next IV */
if (conn->actual_protocol_version < S2N_TLS11) {
gte_check(en.size, block_size);
memcpy_check(implicit_iv, en.data + en.size - block_size, block_size);
}
break;
case S2N_AEAD:
GUARD(cipher_suite->record_alg->cipher->io.aead.encrypt(session_key, &iv, &aad, &en, &en));
break;
case S2N_COMPOSITE:
/* This will: compute mac, append padding, append padding length, and encrypt */
GUARD(cipher_suite->record_alg->cipher->io.comp.encrypt(session_key, &iv, &en, &en));
/* Copy the last encrypted block to be the next IV */
gte_check(en.size, block_size);
memcpy_check(implicit_iv, en.data + en.size - block_size, block_size);
break;
default:
S2N_ERROR(S2N_ERR_CIPHER_TYPE);
break;
}
conn->wire_bytes_out += actual_fragment_length + S2N_TLS_RECORD_HEADER_LENGTH;
return data_bytes_to_take;
}
/**
* compute the runtime for each split piece of the given task.
*/
static int set_split_runtime(resch_task_t *rt, int cpu)
{
unsigned long L, Lmax = ~(0UL);
unsigned long remain, runtime, runtime_min;
resch_task_t *p;
edf_wm_task_t *et = &edf_wm_task[rt->rid];
runtime_min = (100 - util_cpu(cpu)) * rt->period / 100;
/* check for deadlines of tasks assigned to @cpu. */
p = global_highest_prio_task();
while (p) {
if (split_is_on_cpu(p, cpu)) {
L = et->deadline;
}
else if (task_is_on_cpu(p, cpu)) {
L = p->deadline;
}
else {
p = global_next_prio_task(p);
continue;
}
while (L <= Lmax) {
remain = L - (dbf_cpu(L, cpu) + overhead(rt, L, cpu));
runtime = remain / (floor_ulong(L - et->deadline, rt->period) + 1);
/* renew runtime and reduce Lmax. */
if (runtime <= runtime_min) {
runtime_min = runtime;
if (runtime_min == 0) {
goto out;
}
et->runtime[cpu] = runtime_min;
Lmax = dbf_len(cpu, rt);
et->runtime[cpu] = 0;
}
L += p->period;
}
p = global_next_prio_task(p);
}
/* check for deadlines of @rt. */
L = et->deadline;
while (L <= Lmax) {
remain = L - (dbf_cpu(L, cpu) + overhead(rt, L, cpu));
runtime = remain / (floor_ulong(L - et->deadline, rt->period) + 1);
/* renew runtime and reduce Lmax. */
if (runtime <= runtime_min) {
runtime_min = runtime;
if (runtime == 0) {
goto out;
}
et->runtime[cpu] = runtime_min;
Lmax = dbf_len(cpu, rt);
et->runtime[cpu] = 0;
}
L += rt->period;
}
out:
et->runtime[cpu] = runtime_min;
return true;
}
void netlist_t::print_stats() const
{
if (nperftime_t<NL_KEEP_STATISTICS>::enabled)
{
std::vector<size_t> index;
for (size_t i=0; i < m_state->m_devices.size(); i++)
index.push_back(i);
std::sort(index.begin(), index.end(),
[&](size_t i1, size_t i2) { return m_state->m_devices[i1].second->m_stat_total_time.total() < m_state->m_devices[i2].second->m_stat_total_time.total(); });
nperftime_t<NL_KEEP_STATISTICS>::type total_time(0);
nperftime_t<NL_KEEP_STATISTICS>::ctype total_count(0);
for (auto & j : index)
{
auto entry = m_state->m_devices[j].second.get();
log().verbose("Device {1:20} : {2:12} {3:12} {4:15} {5:12}", entry->name(),
entry->m_stat_call_count(), entry->m_stat_total_time.count(),
entry->m_stat_total_time.total(), entry->m_stat_inc_active());
total_time += entry->m_stat_total_time.total();
total_count += entry->m_stat_total_time.count();
}
log().verbose("Total calls : {1:12} {2:12} {3:12}", total_count,
total_time, total_time / static_cast<decltype(total_time)>(total_count));
nperftime_t<NL_KEEP_STATISTICS> overhead;
nperftime_t<NL_KEEP_STATISTICS> test;
{
auto overhead_guard(overhead.guard());
for (int j=0; j<100000;j++)
{
auto test_guard(test.guard());
}
}
nperftime_t<NL_KEEP_STATISTICS>::type total_overhead = overhead()
* static_cast<nperftime_t<NL_KEEP_STATISTICS>::type>(total_count)
/ static_cast<nperftime_t<NL_KEEP_STATISTICS>::type>(200000);
log().verbose("Queue Pushes {1:15}", m_queue.m_prof_call());
log().verbose("Queue Moves {1:15}", m_queue.m_prof_sortmove());
log().verbose("Queue Removes {1:15}", m_queue.m_prof_remove());
log().verbose("Queue Retimes {1:15}", m_queue.m_prof_retime());
log().verbose("Total loop {1:15}", m_stat_mainloop());
/* Only one serialization should be counted in total time */
/* But two are contained in m_stat_mainloop */
log().verbose("Total devices {1:15}", total_time);
log().verbose("");
log().verbose("Take the next lines with a grain of salt. They depend on the measurement implementation.");
log().verbose("Total overhead {1:15}", total_overhead);
nperftime_t<NL_KEEP_STATISTICS>::type overhead_per_pop = (m_stat_mainloop()-2*total_overhead - (total_time - total_overhead))
/ static_cast<nperftime_t<NL_KEEP_STATISTICS>::type>(m_queue.m_prof_call());
log().verbose("Overhead per pop {1:11}", overhead_per_pop );
log().verbose("");
auto trigger = total_count * 200 / 1000000; // 200 ppm
for (auto &entry : m_state->m_devices)
{
auto ep = entry.second.get();
// Factor of 3 offers best performace increase
if (ep->m_stat_inc_active() > 3 * ep->m_stat_total_time.count()
&& ep->m_stat_inc_active() > trigger)
log().verbose("HINT({}, NO_DEACTIVATE) // {} {} {}", ep->name(),
static_cast<double>(ep->m_stat_inc_active()) / static_cast<double>(ep->m_stat_total_time.count()),
ep->m_stat_inc_active(), ep->m_stat_total_time.count());
}
}
}
int main(int argc, char **argv) {
//get Input
int sequential = 1;
int count = 0;
printf("Prompt: ");
fflush(stdout);
char line[1024];
for(;fgets(line, 1024, stdin) != NULL; printf("Prompt: ")) {
for (int i =0; i<1024; i++){
if (line[i]=='\n'){
line[i]='\0';
}
}
//tokenify the line. Returns separate commands.
char ** tokens = tokenify(line);
int exit_terminal = 0;
int mode_switch = 0;
pid_t pid;
for (int i=0; tokens[i]!=NULL; i++){
char ** results = parse_command(tokens[i]);
int overhead_command = overhead(results, sequential);
//if (overhead_command==0) do nothing.
if (overhead_command > 0) {
// free
}
if (overhead_command==1){
//exit command issued
exit_terminal = 1;
free(results);
continue;
}
if (overhead_command==2){
//switch to sequential mode
mode_switch = 1;
continue;
}
if (overhead_command==3){
//switch to parallel
mode_switch = 2;
continue;
}
if (overhead_command==4){
//already printed what mode we are in
continue;
}
pid = fork();
if (pid==0){
FILE *fp;
fp = fopen("shell-config", "r");
char holder[20];
// initialize linked list to store paths
struct node *head = NULL;
while (fscanf(fp, "%s/n", holder) != EOF) {
list_insert(holder, &head);
}
fclose(fp);
struct node *iterator = head;
struct stat statresult;
int rv = stat(results[0], &statresult);
//printf("%i\n", rv);
// this loop checks to see if there are any path folders that may contain the command
if (rv < 0){
//printf("RV not negative\n");
//printf("%s\n", iterator -> name);
while (iterator != NULL){
char* name = strdup(iterator -> name);
rv = stat(iterator->name, &statresult);
if (rv < 0){
// not found
continue;
} else {
results[0] = iterator -> name;
}
rv = stat(iterator->name, &statresult);
iterator = iterator -> next;
}
}
list_delete(head);
//printf("results[0]: %s\n", results[0]);
if (execv(results[0],results)<0){
printf("Process entered is wrong.\n");
exit(0);
}
}
if (sequential) {
wait(&pid);
}
}
if (sequential == 0){
wait(&pid);
}
if (exit_terminal==1){
free(tokens);
return 0;
}
if (mode_switch==1){
sequential = 1; //switch to sequential
}
if (mode_switch==2){
sequential = 0; //switch to parallel
}
count ++;
}
return 0;
}
