CStrAny Parse::ReadInt(CStrAny &s, int iRadix, bool bSign)
{
CStrAny sRes;
if (bSign)
sRes = ReadChars(s, g_sSign, 1);
sRes >>= ReadNumerals(s, iRadix);
return sRes;
}
// Wait function CSR_WAIT_FUNCTION
static BOOLEAN
ReadCharsThread(IN PLIST_ENTRY WaitList,
IN PCSR_THREAD WaitThread,
IN PCSR_API_MESSAGE WaitApiMessage,
IN PVOID WaitContext,
IN PVOID WaitArgument1,
IN PVOID WaitArgument2,
IN ULONG WaitFlags)
{
NTSTATUS Status;
PGET_INPUT_INFO InputInfo = (PGET_INPUT_INFO)WaitContext;
PVOID InputHandle = WaitArgument2;
DPRINT("ReadCharsThread - WaitContext = 0x%p, WaitArgument1 = 0x%p, WaitArgument2 = 0x%p, WaitFlags = %lu\n", WaitContext, WaitArgument1, WaitArgument2, WaitFlags);
/*
* If we are notified of the process termination via a call
* to CsrNotifyWaitBlock triggered by CsrDestroyProcess or
* CsrDestroyThread, just return.
*/
if (WaitFlags & CsrProcessTerminating)
{
Status = STATUS_THREAD_IS_TERMINATING;
goto Quit;
}
/*
* Somebody is closing a handle to this input buffer,
* by calling ConSrvCloseHandleEntry.
* See whether we are linked to that handle (ie. we
* are a waiter for this handle), and if so, return.
* Otherwise, ignore the call and continue waiting.
*/
if (InputHandle != NULL)
{
Status = (InputHandle == InputInfo->HandleEntry ? STATUS_ALERTED
: STATUS_PENDING);
goto Quit;
}
/*
* If we go there, that means we are notified for some new input.
* The console is therefore already locked.
*/
Status = ReadChars(InputInfo,
WaitApiMessage,
FALSE);
Quit:
if (Status != STATUS_PENDING)
{
WaitApiMessage->Status = Status;
ConsoleFreeHeap(InputInfo);
}
return (Status == STATUS_PENDING ? FALSE : TRUE);
}
int ReadLinkString(LinkSocket *linkSocket, LinkString *args)
{
/* How many characters in a string*/
int check = OK;
check = check || ReadInteger(linkSocket, &(args->numberOfChars));
/*Allocate memory. Keep space for NULL*/
args->text = (char *)malloc(args->numberOfChars + 1);
if(NULL == args->text)
return -1; /* Memory allocation error */
/*Read them from socket. */
if(args->numberOfChars > 0)
{
check = check || ReadChars(linkSocket, args->text, args->numberOfChars);
args->text[args->numberOfChars] = NULL;
}
return check;
}
/*=============================================================================
* READ_GADGET
*=============================================================================*/
void read_gadget(FILE *icfile, float **out_x,float **out_y,float **out_z)
{
int i;
long no_part;
int massflag;
char DATA[MAXSTRING];
float fdummy[3];
double ddummy[3];
double x_fac;
long pid;
/*================= read in GADGET IO header =================*/
if(FORMAT == 2)
{
GADGET_SKIP;
fread(DATA,sizeof(char),blklen,icfile);
DATA[4] = '\0';
fprintf(stderr,"reading... %s\n",DATA);
GADGET_SKIP;
}
GADGET_SKIP;
ReadInt(icfile,&(gadget.header.np[0]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.np[1]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.np[2]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.np[3]),SWAPBYTES); /* number of particles in current file */
ReadInt(icfile,&(gadget.header.np[4]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.np[5]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[0]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[1]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[2]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[3]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[4]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[5]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.expansion),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.redshift),SWAPBYTES);
ReadInt(icfile,&(gadget.header.flagsfr),SWAPBYTES);
ReadInt(icfile,&(gadget.header.flagfeedback),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[0]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[1]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[2]),SWAPBYTES); /* total number of particles in simulation */
ReadInt(icfile,&(gadget.header.nall[3]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[4]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[5]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.flagcooling),SWAPBYTES);
ReadInt(icfile,&(gadget.header.NumFiles),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.BoxSize),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.Omega0),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.OmegaLambda),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.HubbleParam),SWAPBYTES);
ReadChars(icfile,&(gadget.header.unused[0]),SIZEOFGADGETHEADER- 6*4- 6*8- 2*8- 2*4- 6*4- 2*4 - 4*8);
GADGET_SKIP;
/*================= read in GADGET IO header =================*/
/* keep track of no. of particles in each GADGET file */
gadget.np[0][gadget.i_gadget_file] = gadget.header.np[0];
gadget.np[1][gadget.i_gadget_file] = gadget.header.np[1];
gadget.np[2][gadget.i_gadget_file] = gadget.header.np[2];
gadget.np[3][gadget.i_gadget_file] = gadget.header.np[3];
gadget.np[4][gadget.i_gadget_file] = gadget.header.np[4];
gadget.np[5][gadget.i_gadget_file] = gadget.header.np[5];
/* conversion factors to Mpc/h, km/sec, Msun/h */
x_fac = GADGET_LUNIT;
//m_fac = GADGET_MUNIT;
/* count total no. of particles in current file (and set massflag) */
massflag = 0;
no_part = 0;
gadget.nall = 0;
for(i=0;i<6;i++)
{
no_part += gadget.header.np[i];
gadget.nall += gadget.header.nall[i];
if(gadget.header.massarr[i] < MZERO && gadget.header.np[i] > 0)
massflag=1;
}
#ifdef _VERB
fprintf(stderr,"expansion factor: %lf\n", gadget.header.expansion);
fprintf(stderr,"redshift: %lf\n", gadget.header.redshift);
fprintf(stderr,"boxsize: %lf (%lf Mpc/h)\n", gadget.header.BoxSize,gadget.header.BoxSize*GADGET_LUNIT);
fprintf(stderr,"omega0: %lf\n", gadget.header.Omega0);
fprintf(stderr,"lambda0: %lf\n", gadget.header.OmegaLambda);
fprintf(stderr,"HubbleParam: %lf\n\n", gadget.header.HubbleParam);
fprintf(stderr,"gas: np[0]=%9d\t nall[0]=%9d\t massarr[0]=%g\n",gadget.header.np[0],gadget.header.nall[0],gadget.header.massarr[0]);
fprintf(stderr,"halo: np[1]=%9d\t nall[1]=%9d\t massarr[1]=%g\n",gadget.header.np[1],gadget.header.nall[1],gadget.header.massarr[1]);
fprintf(stderr,"disk: np[2]=%9d\t nall[2]=%9d\t massarr[2]=%g\n",gadget.header.np[2],gadget.header.nall[2],gadget.header.massarr[2]);
fprintf(stderr,"bulge: np[3]=%9d\t nall[3]=%9d\t massarr[3]=%g\n",gadget.header.np[3],gadget.header.nall[3],gadget.header.massarr[3]);
fprintf(stderr,"stars: np[4]=%9d\t nall[4]=%9d\t massarr[4]=%g\n",gadget.header.np[4],gadget.header.nall[4],gadget.header.massarr[4]);
fprintf(stderr,"bndry: np[5]=%9d\t nall[5]=%9d\t massarr[5]=%g\n",gadget.header.np[5],gadget.header.nall[5],gadget.header.massarr[5]);
fprintf(stderr,"\n-> reading %ld/%ld particles from GADGET file #%d/%d...\n\n", no_part,gadget.nall, gadget.i_gadget_file+1, gadget.no_gadget_files);
#endif
/* allocate particle array (only once when reading the first file, of course!) */
if(gadget.i_gadget_file == 0)
{
fprintf(stderr,"-> allocating %f GB of RAM for particles\n\n",(float)(gadget.nall*3*sizeof(float))/1024./1024./1024.);
if(!((*out_x)=(float *) calloc(gadget.nall, sizeof(float))))
{
fprintf(stderr,"\nfailed to allocate memory for GADGET data\n");
exit(1);
}
if(!((*out_y)=(float *) calloc(gadget.nall, sizeof(float))))
{
fprintf(stderr,"\nfailed to allocate memory for GADGET data\n");
exit(1);
}
if(!((*out_z)=(float *) calloc(gadget.nall, sizeof(float))))
{
fprintf(stderr,"\nfailed to allocate memory for GADGET data\n");
exit(1);
}
}
/*================= read in GADGET particles =================*/
if(FORMAT == 2)
{
GADGET_SKIP;
fread(DATA,sizeof(char),blklen,icfile);
DATA[4] = '\0';
fprintf(stderr,"reading... %s",DATA);
//GADGET_SKIP;
GADGET_SKIP;
}
else
{
fprintf(stderr,"reading ");
}
GADGET_SKIP;
fprintf(stderr,"(%8.2g MB) ... ",blklen/1024./1024.);
for(i=0;i<no_part;i++)
{
/* read */
if(DGADGET)
{
ReadDouble(icfile,&(ddummy[0]),SWAPBYTES);
ReadDouble(icfile,&(ddummy[1]),SWAPBYTES);
ReadDouble(icfile,&(ddummy[2]),SWAPBYTES);
}
else
{
ReadFloat(icfile,&(fdummy[0]),SWAPBYTES);
ReadFloat(icfile,&(fdummy[1]),SWAPBYTES);
ReadFloat(icfile,&(fdummy[2]),SWAPBYTES);
}
/* get proper position in array */
pid = get_pid(i);
/* storage and conversion to comoving physical units */
(*out_x)[pid] = fdummy[0] * x_fac;
(*out_y)[pid] = fdummy[1] * x_fac;
(*out_z)[pid] = fdummy[2] * x_fac;
}
fprintf(stderr,"Pos[X]=%12.6g Pos[Y]=%12.6g Pos[Z]=%12.6g ... ",(*out_x)[no_part-1],(*out_y)[no_part-1],(*out_z)[no_part-1]);
GADGET_SKIP;
fprintf(stderr,"(%8.2g MB) done.\n",blklen/1024./1024.);
/*================= read in GADGET particles =================*/
/* massflag == 1 indicates that massarr[i] = 0 which shouldnt be the case for HALOGEN */
if(massflag==1)
{
fprintf(stderr,"ERROR: HALOGEN does not expect to encounter variable masses\n If needed, please, contact us to implement it\n");
exit(0);
}
}
/*=============================================================================
* READ_GADGET
*=============================================================================*/
void read_gadget(FILE *icfile)
{
long unsigned ipart;
double tot_mass[6];
int i,j,k;
long no_part;
int massflag;
char DATA[MAXSTRING];
float fdummy[3];
double ddummy[3];
double x_fac, v_fac, m_fac;
long pid, ldummy;
unsigned int idummy;
/*================= read in GADGET IO header =================*/
if(FORMAT == 2)
{
GADGET_SKIP;
fread(DATA,sizeof(char),blklen,icfile);
DATA[4] = '\0';
fprintf(stderr,"reading... %s\n",DATA);
//GADGET_SKIP;
GADGET_SKIP;
}
GADGET_SKIP;
ReadInt(icfile,&(gadget.header.np[0]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.np[1]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.np[2]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.np[3]),SWAPBYTES); /* number of particles in current file */
ReadInt(icfile,&(gadget.header.np[4]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.np[5]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[0]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[1]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[2]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[3]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[4]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[5]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.expansion),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.redshift),SWAPBYTES);
ReadInt(icfile,&(gadget.header.flagsfr),SWAPBYTES);
ReadInt(icfile,&(gadget.header.flagfeedback),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[0]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[1]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[2]),SWAPBYTES); /* total number of particles in simulation */
ReadInt(icfile,&(gadget.header.nall[3]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[4]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[5]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.flagcooling),SWAPBYTES);
ReadInt(icfile,&(gadget.header.NumFiles),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.BoxSize),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.Omega0),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.OmegaLambda),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.HubbleParam),SWAPBYTES);
ReadChars(icfile,&(gadget.header.unused[0]),SIZEOFGADGETHEADER- 6*4- 6*8- 2*8- 2*4- 6*4- 2*4 - 4*8);
GADGET_SKIP;
/*================= read in GADGET IO header =================*/
//exit(0);
/* keep track of no. of particles in each GADGET file */
gadget.np[0][gadget.i_gadget_file] = gadget.header.np[0];
gadget.np[1][gadget.i_gadget_file] = gadget.header.np[1];
gadget.np[2][gadget.i_gadget_file] = gadget.header.np[2];
gadget.np[3][gadget.i_gadget_file] = gadget.header.np[3];
gadget.np[4][gadget.i_gadget_file] = gadget.header.np[4];
gadget.np[5][gadget.i_gadget_file] = gadget.header.np[5];
/* conversion factors to Mpc/h, km/sec, Msun/h */
x_fac = GADGET_LUNIT;
v_fac = sqrt(gadget.header.expansion);
m_fac = GADGET_MUNIT;
/* count total no. of particles in current file (and set massflag) */
massflag = 0;
no_part = 0;
gadget.nall = 0;
for(i=0;i<6;i++)
{
no_part += gadget.header.np[i];
gadget.nall += gadget.header.nall[i];
if(gadget.header.massarr[i] < MZERO && gadget.header.np[i] > 0)
massflag=1;
}
/* be verbose */
fprintf(stderr,"expansion factor: %lf\n", gadget.header.expansion);
fprintf(stderr,"redshift: %lf\n", gadget.header.redshift);
fprintf(stderr,"boxsize: %lf (%lf Mpc/h)\n", gadget.header.BoxSize,gadget.header.BoxSize*GADGET_LUNIT);
fprintf(stderr,"omega0: %lf\n", gadget.header.Omega0);
fprintf(stderr,"lambda0: %lf\n", gadget.header.OmegaLambda);
fprintf(stderr,"HubbleParam: %lf\n\n", gadget.header.HubbleParam);
fprintf(stderr,"gas: np[0]=%9d\t nall[0]=%9d\t massarr[0]=%g\n",gadget.header.np[0],gadget.header.nall[0],gadget.header.massarr[0]);
fprintf(stderr,"halo: np[1]=%9d\t nall[1]=%9d\t massarr[1]=%g\n",gadget.header.np[1],gadget.header.nall[1],gadget.header.massarr[1]);
fprintf(stderr,"disk: np[2]=%9d\t nall[2]=%9d\t massarr[2]=%g\n",gadget.header.np[2],gadget.header.nall[2],gadget.header.massarr[2]);
fprintf(stderr,"bulge: np[3]=%9d\t nall[3]=%9d\t massarr[3]=%g\n",gadget.header.np[3],gadget.header.nall[3],gadget.header.massarr[3]);
fprintf(stderr,"stars: np[4]=%9d\t nall[4]=%9d\t massarr[4]=%g\n",gadget.header.np[4],gadget.header.nall[4],gadget.header.massarr[4]);
fprintf(stderr,"bndry: np[5]=%9d\t nall[5]=%9d\t massarr[5]=%g\n",gadget.header.np[5],gadget.header.nall[5],gadget.header.massarr[5]);
fprintf(stderr,"\n-> reading %ld particles from GADGET file #%d/%d...\n\n", no_part, gadget.i_gadget_file+1, gadget.no_gadget_files);
/* allocate particle array (only once when reading the first file, of course!) */
if(gadget.i_gadget_file == 0)
{
fprintf(stderr,"-> allocating %f GB of RAM for particles\n\n",(float)(gadget.nall*sizeof(struct particle_data))/1024./1024./1024.);
if(!(Part=(struct particle_data *) calloc(gadget.nall, sizeof(struct particle_data))))
{
fprintf(stderr,"\nfailed to allocate memory for GADGET data\n");
exit(1);
}
}
/*================= read in GADGET particles =================*/
if(FORMAT == 2)
{
GADGET_SKIP;
fread(DATA,sizeof(char),blklen,icfile);
DATA[4] = '\0';
fprintf(stderr,"reading... %s",DATA);
//GADGET_SKIP;
GADGET_SKIP;
}
else
{
fprintf(stderr,"reading ");
}
GADGET_SKIP;
fprintf(stderr,"(%8.2g MB) ... ",blklen/1024./1024.);
for(i=0;i<no_part;i++)
{
/* read */
if(DGADGET)
{
ReadDouble(icfile,&(ddummy[0]),SWAPBYTES);
ReadDouble(icfile,&(ddummy[1]),SWAPBYTES);
ReadDouble(icfile,&(ddummy[2]),SWAPBYTES);
}
else
{
ReadFloat(icfile,&(fdummy[0]),SWAPBYTES);
ReadFloat(icfile,&(fdummy[1]),SWAPBYTES);
ReadFloat(icfile,&(fdummy[2]),SWAPBYTES);
ddummy[0] = fdummy[0];
ddummy[1] = fdummy[1];
ddummy[2] = fdummy[2];
}
/* get proper position in Part[] array */
pid = get_pid(i);
/* storage and conversion to comoving physical units */
Part[pid].Pos[0] = ddummy[0] * x_fac;
Part[pid].Pos[1] = ddummy[1] * x_fac;
Part[pid].Pos[2] = ddummy[2] * x_fac;
}
fprintf(stderr,"Pos[X]=%12.6g Pos[Y]=%12.6g Pos[Z]=%12.6g ... ",Part[no_part-1].Pos[X],Part[no_part-1].Pos[Y],Part[no_part-1].Pos[Z]);
GADGET_SKIP;
fprintf(stderr,"(%8.2g MB) done.\n",blklen/1024./1024.);
/*================= read in GADGET particles =================*/
/*================= read in GADGET velocities =================*/
if(FORMAT == 2)
{
GADGET_SKIP;
fread(DATA,sizeof(char),blklen,icfile);
DATA[4] = '\0';
fprintf(stderr,"reading... %s",DATA);
//GADGET_SKIP;
GADGET_SKIP;
}
else
{
fprintf(stderr,"reading ");
}
GADGET_SKIP;
fprintf(stderr,"(%8.2g MB) ... ",blklen/1024./1024.);
for(i=0;i<no_part;i++)
{
/* read */
if(DGADGET)
{
ReadDouble(icfile,&(ddummy[0]),SWAPBYTES);
ReadDouble(icfile,&(ddummy[1]),SWAPBYTES);
ReadDouble(icfile,&(ddummy[2]),SWAPBYTES);
}
else
{
ReadFloat(icfile,&(fdummy[0]),SWAPBYTES);
ReadFloat(icfile,&(fdummy[1]),SWAPBYTES);
ReadFloat(icfile,&(fdummy[2]),SWAPBYTES);
ddummy[0] = fdummy[0];
ddummy[1] = fdummy[1];
ddummy[2] = fdummy[2];
}
/* get proper position in Part[] array */
pid = get_pid(i);
/* storage and conversion to comoving physical units */
Part[pid].Vel[0] = ddummy[0] * v_fac;
Part[pid].Vel[1] = ddummy[1] * v_fac;
Part[pid].Vel[2] = ddummy[2] * v_fac;
}
fprintf(stderr,"Vel[X]=%12.6g Vel[Y]=%12.6g Vel[Z]=%12.6g ... ",Part[no_part-1].Vel[X],Part[no_part-1].Vel[Y],Part[no_part-1].Vel[Z]);
GADGET_SKIP;
fprintf(stderr,"(%8.2g MB) done.\n",blklen/1024./1024.);
/*================= read in GADGET velocities =================*/
/*================= read in GADGET id's =================*/
if(FORMAT == 2)
{
GADGET_SKIP;
fread(DATA,sizeof(char),blklen,icfile);
DATA[4] = '\0';
fprintf(stderr,"reading... %s",DATA);
//GADGET_SKIP;
GADGET_SKIP;
}
else
{
fprintf(stderr,"reading ");
}
GADGET_SKIP;
fprintf(stderr,"(%8.2g MB) ... ",blklen/1024./1024.);
for(i=0;i<no_part;i++)
{
/* get proper position in Part[] array */
pid = get_pid(i);
if(LGADGET)
{
ReadLong(icfile,&ldummy,SWAPBYTES);
Part[pid].ID = ldummy;
}
else
{
ReadUInt(icfile,&idummy,SWAPBYTES);
Part[pid].ID = (long) idummy;
}
/* check the ID range of the "halo" particles */
if(gadget.header.np[0] <= i && i < gadget.header.np[0]+gadget.header.np[1])
{
if(Part[pid].ID > IDmax) IDmax = Part[pid].ID;
if(Part[pid].ID < IDmin) IDmin = Part[pid].ID;
}
}
fprintf(stderr,"ID=%12ld ... ",Part[no_part-1].ID);
GADGET_SKIP;
fprintf(stderr,"(%8.2g MB) done.\n",blklen/1024./1024.);
/*================= read in GADGET id's =================*/
k = 0;
/* massflag == 1 indicates that massarr[i] = 0 and hence need to read in particle masses */
if(massflag==1)
{
/*================= read in GADGET individual particle masses =================*/
if(FORMAT == 2)
{
GADGET_SKIP;
fread(DATA,sizeof(char),blklen,icfile);
DATA[4] = '\0';
fprintf(stderr,"reading... %s",DATA);
//GADGET_SKIP;
GADGET_SKIP;
}
else
{
fprintf(stderr,"reading ");
}
GADGET_SKIP;
fprintf(stderr,"(%8.2g MB) ... ",blklen/1024./1024.);
for(i=0;i<6;i++)
{
tot_mass[i] = 0.;
if (gadget.header.np[i] > 0 && gadget.header.massarr[i] < MZERO )
{
fprintf(stderr," %d ",i);
for(j=0; j<gadget.header.np[i]; j++)
{
/* read */
if(DGADGET)
{
ReadDouble(icfile,&(ddummy[0]),SWAPBYTES);
}
else
{
ReadFloat(icfile,&(fdummy[0]),SWAPBYTES);
ddummy[0] = fdummy[0];
}
/* get proper position in Part[] array */
pid = get_pid(k);
/* store */
Part[pid].Mass = ddummy[0];
tot_mass[i] += ddummy[0];
k++;
}
}
else
{
/* simply copy appropriate massarr[i] to particles */
for(j=0; j<gadget.header.np[i]; j++)
{
/* get proper position in Part[] array */
pid = get_pid(k);
/* store */
Part[pid].Mass = gadget.header.massarr[i];
k++;
}
tot_mass[i] = gadget.header.np[i]*gadget.header.massarr[i];
}
}
GADGET_SKIP;
fprintf(stderr,"(%8.2g MB) done.\n",blklen/1024./1024.);
/*================= read in GADGET individual particle masses =================*/
}
/* simply copy appropriate massarr[i] to particles */
else
{
k=0;
for(i=0;i<6;i++)
{
for(j=0;j<gadget.header.np[i];j++)
{
/* get proper position in Part[] array */
pid = get_pid(k);
/* store */
Part[pid].Mass = gadget.header.massarr[i];
k++;
}
tot_mass[i] = gadget.header.np[i]*gadget.header.massarr[i];
}
}
/*============ convert masses to Msun/h and set particle type ============*/
k=0;
// 1. gas (no fiddling with Part[].u, please!)
i=0;
for(j=0; j<gadget.header.np[i]; j++)
{
pid = get_pid(k);
Part[pid].Mass *= m_fac;
k++;
}
// 2. all other species
for(i=1; i<6; i++)
{
for(j=0; j<gadget.header.np[i]; j++)
{
/* get proper position in Part[] array */
pid = get_pid(k);
Part[pid].Mass *= m_fac;
Part[pid].u = -i;
k++;
}
}
/*================= read in GADGET gas particle energies =================*/
if(gadget.header.np[0] > 0)
{
if(FORMAT == 2)
{
GADGET_SKIP;
fread(DATA,sizeof(char),blklen,icfile);
DATA[4] = '\0';
fprintf(stderr,"reading... %s",DATA);
//GADGET_SKIP;
GADGET_SKIP;
}
else
{
fprintf(stderr,"reading ");
}
GADGET_SKIP;
fprintf(stderr,"(%8.2g MB) ... ",blklen/1024./1024.);
for(i=0; i<gadget.header.np[0]; i++)
{
/* store */
if(DGADGET)
{
ReadDouble(icfile,&(ddummy[0]),SWAPBYTES);
}
else
{
ReadFloat(icfile,&(fdummy[0]),SWAPBYTES);
ddummy[0] = fdummy[0];
}
/* get proper position in Part[] array */
pid = get_pid(i);
/* store additional gas particle property */
Part[pid].u = ddummy[0];
}
GADGET_SKIP;
fprintf(stderr,"(%8.2g MB) done.\n",blklen/1024./1024.);
}
/*================= read in GADGET gas particle energies =================*/
/* be verbose */
fprintf(stderr,"\n");
if(gadget.header.np[0] > 0) fprintf(stderr," gas: tot_mass[0]=%16.8g Msun/h (%16.8g Msun/h per particle)\n",tot_mass[0]*GADGET_MUNIT,tot_mass[0]/(double)gadget.header.np[0]*GADGET_MUNIT);
if(gadget.header.np[1] > 0) fprintf(stderr," halo: tot_mass[1]=%16.8g Msun/h (%16.8g Msun/h per particle)\n",tot_mass[1]*GADGET_MUNIT,tot_mass[1]/(double)gadget.header.np[1]*GADGET_MUNIT);
if(gadget.header.np[2] > 0) fprintf(stderr," disk: tot_mass[2]=%16.8g Msun/h (%16.8g Msun/h per particle)\n",tot_mass[2]*GADGET_MUNIT,tot_mass[2]/(double)gadget.header.np[2]*GADGET_MUNIT);
if(gadget.header.np[3] > 0) fprintf(stderr," bulge: tot_mass[3]=%16.8g Msun/h (%16.8g Msun/h per particle)\n",tot_mass[3]*GADGET_MUNIT,tot_mass[3]/(double)gadget.header.np[3]*GADGET_MUNIT);
if(gadget.header.np[4] > 0) fprintf(stderr," stars: tot_mass[4]=%16.8g Msun/h (%16.8g Msun/h per particle)\n",tot_mass[4]*GADGET_MUNIT,tot_mass[4]/(double)gadget.header.np[4]*GADGET_MUNIT);
if(gadget.header.np[5] > 0) fprintf(stderr," bndry: tot_mass[5]=%16.8g Msun/h (%16.8g Msun/h per particle)\n",tot_mass[5]*GADGET_MUNIT,tot_mass[5]/(double)gadget.header.np[5]*GADGET_MUNIT);
fprintf(stderr,"===================================================================\n");
}
CStrAny Parse::ReadWhitespace(CStrAny &s)
{
return ReadChars(s, g_sWhitespace);
}
CStrAny Parse::ReadSign(CStrAny &s)
{
return ReadChars(s, g_sSign, 1);
}
/*=============================================================================
* READ_GADGET
*=============================================================================*/
int read_gadget(FILE *icfile, float ***out_x,float ***out_y,float ***out_z, float ***out_vx,float ***out_vy,float ***out_vz,int ifile)
{
int i;
long no_part;
int massflag;
char DATA[MAXSTRING];
float fdummy[3];
double ddummy[3];
double x_fac;
// long pid;
/*================= read in GADGET IO header =================*/
if(FORMAT == 2)
{
GADGET_SKIP;
fread(DATA,sizeof(char),blklen,icfile);
DATA[4] = '\0';
fprintf(stderr,"\treading... %s\n",DATA);
GADGET_SKIP;
}
GADGET_SKIP;
ReadInt(icfile,&(gadget.header.np[0]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.np[1]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.np[2]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.np[3]),SWAPBYTES); /* number of particles in current file */
ReadInt(icfile,&(gadget.header.np[4]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.np[5]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[0]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[1]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[2]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[3]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[4]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.massarr[5]),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.expansion),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.redshift),SWAPBYTES);
ReadInt(icfile,&(gadget.header.flagsfr),SWAPBYTES);
ReadInt(icfile,&(gadget.header.flagfeedback),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[0]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[1]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[2]),SWAPBYTES); /* total number of particles in simulation */
ReadInt(icfile,&(gadget.header.nall[3]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[4]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.nall[5]),SWAPBYTES);
ReadInt(icfile,&(gadget.header.flagcooling),SWAPBYTES);
ReadInt(icfile,&(gadget.header.NumFiles),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.BoxSize),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.Omega0),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.OmegaLambda),SWAPBYTES);
ReadDouble(icfile,&(gadget.header.HubbleParam),SWAPBYTES);
ReadChars(icfile,&(gadget.header.unused[0]),SIZEOFGADGETHEADER- 6*4- 6*8- 2*8- 2*4- 6*4- 2*4 - 4*8);
GADGET_SKIP;
/*================= read in GADGET IO header =================*/
/* keep track of no. of particles in each GADGET file */
gadget.np[0][gadget.i_gadget_file] = gadget.header.np[0];
gadget.np[1][gadget.i_gadget_file] = gadget.header.np[1];
gadget.np[2][gadget.i_gadget_file] = gadget.header.np[2];
gadget.np[3][gadget.i_gadget_file] = gadget.header.np[3];
gadget.np[4][gadget.i_gadget_file] = gadget.header.np[4];
gadget.np[5][gadget.i_gadget_file] = gadget.header.np[5];
/* conversion factors to Mpc/h, km/sec, Msun/h */
x_fac = GADGET_LUNIT;
//m_fac = GADGET_MUNIT;
/* count total no. of particles in current file (and set massflag) */
massflag = 0;
no_part = 0;
gadget.nall = 0;
for(i=0;i<6;i++)
{
no_part += gadget.header.np[i];
gadget.nall += gadget.header.nall[i];
if(gadget.header.massarr[i] < MZERO && gadget.header.np[i] > 0)
massflag=1;
}
#ifdef VERB
if (ifile==0){
fprintf(stderr,"\n\texpansion factor: %lf\n", gadget.header.expansion);
fprintf(stderr,"\tredshift: %lf\n", gadget.header.redshift);
fprintf(stderr,"\tboxsize: %lf (%lf Mpc/h)\n", gadget.header.BoxSize,gadget.header.BoxSize*GADGET_LUNIT);
fprintf(stderr,"\tomega0: %lf\n", gadget.header.Omega0);
fprintf(stderr,"\tlambda0: %lf\n", gadget.header.OmegaLambda);
fprintf(stderr,"\tHubbleParam: %lf\n\n", gadget.header.HubbleParam);
}
#endif
#ifdef DEBUG
fprintf(stderr,"\n\tgas: np[0]=%9d\t nall[0]=%9d\t massarr[0]=%g\n",gadget.header.np[0],gadget.header.nall[0],gadget.header.massarr[0]);
fprintf(stderr,"\thalo: np[1]=%9d\t nall[1]=%9d\t massarr[1]=%g\n",gadget.header.np[1],gadget.header.nall[1],gadget.header.massarr[1]);
fprintf(stderr,"\tdisk: np[2]=%9d\t nall[2]=%9d\t massarr[2]=%g\n",gadget.header.np[2],gadget.header.nall[2],gadget.header.massarr[2]);
fprintf(stderr,"\tbulge: np[3]=%9d\t nall[3]=%9d\t massarr[3]=%g\n",gadget.header.np[3],gadget.header.nall[3],gadget.header.massarr[3]);
fprintf(stderr,"\tstars: np[4]=%9d\t nall[4]=%9d\t massarr[4]=%g\n",gadget.header.np[4],gadget.header.nall[4],gadget.header.massarr[4]);
fprintf(stderr,"\tbndry: np[5]=%9d\t nall[5]=%9d\t massarr[5]=%g\n",gadget.header.np[5],gadget.header.nall[5],gadget.header.massarr[5]);
fprintf(stderr,"\n\t-> reading %ld/%ld particles from GADGET file #%d/%d...\n\n", no_part,gadget.nall, gadget.i_gadget_file+1, gadget.no_gadget_files);
#endif
#ifdef DEBUG
if (ifile==0)
fprintf(stderr,"\t-> allocating %f GB of RAM for particles\n\n",(float)(no_part*6*sizeof(float))/1024./1024./1024.);
#endif
if(!((*out_x)[ifile]=(float *) calloc(no_part, sizeof(float))))
{
fprintf(stderr,"\nfailed to allocate memory for GADGET data\n");
exit(1);
}
if(!((*out_y)[ifile]=(float *) calloc(no_part, sizeof(float))))
{
fprintf(stderr,"\nfailed to allocate memory for GADGET data\n");
exit(1);
}
if(!((*out_z)[ifile]=(float *) calloc(no_part, sizeof(float))))
{
fprintf(stderr,"\nfailed to allocate memory for GADGET data\n");
exit(1);
}
if(!((*out_vx)[ifile]=(float *) calloc(no_part, sizeof(float))))
{
fprintf(stderr,"\nfailed to allocate memory for GADGET data\n");
exit(1);
}
if(!((*out_vy)[ifile]=(float *) calloc(no_part, sizeof(float))))
{
fprintf(stderr,"\nfailed to allocate memory for GADGET data\n");
exit(1);
}
if(!((*out_vz)[ifile]=(float *) calloc(no_part, sizeof(float))))
{
fprintf(stderr,"\nfailed to allocate memory for GADGET data\n");
exit(1);
}
/*================= read in GADGET particles =================*/
if(FORMAT == 2)
{
GADGET_SKIP;
fread(DATA,sizeof(char),blklen,icfile);
DATA[4] = '\0';
if (ifile==0)
fprintf(stderr,"\treading... %s",DATA);
//GADGET_SKIP;
GADGET_SKIP;
}
else
{
if (ifile==0)
fprintf(stderr,"\treading ");
}
GADGET_SKIP;
#ifdef DEBUG
fprintf(stderr,"(%8.2g MB) ... ",blklen/1024./1024.);
#endif
fprintf(stderr,"Thread %d/%d\n",omp_get_thread_num(),omp_get_num_threads());
//#pragma omp barrier
for(i=0;i<no_part;i++)
{
/* read */
if(DGADGET)
{
ReadDouble(icfile,&(ddummy[0]),SWAPBYTES);
ReadDouble(icfile,&(ddummy[1]),SWAPBYTES);
ReadDouble(icfile,&(ddummy[2]),SWAPBYTES);
}
else
{
ReadFloat(icfile,&(fdummy[0]),SWAPBYTES);
ReadFloat(icfile,&(fdummy[1]),SWAPBYTES);
ReadFloat(icfile,&(fdummy[2]),SWAPBYTES);
}
//if (i==0)
// fprintf(stderr,"Thread %d/%d: nstart = %ld\n",omp_get_thread_num(),omp_get_num_threads(),pid);
/* storage and conversion to comoving physical units */
(*out_x)[ifile][i] = fdummy[0] * x_fac;
(*out_y)[ifile][i] = fdummy[1] * x_fac;
(*out_z)[ifile][i] = fdummy[2] * x_fac;
}
fprintf(stderr,"\tpositions done: ifile %d\n",ifile);
#ifdef DEBUG
// fprintf(stderr,"Pos[X]=%12.6g Pos[Y]=%12.6g Pos[Z]=%12.6g ... ",(*out_x)[no_part-1],(*out_y)[no_part-1],(*out_z)[no_part-1]);
#endif
GADGET_SKIP;
#ifdef DEBUG
fprintf(stderr,"(%8.2g MB) done.\n",blklen/1024./1024.);
#endif
/*================= read in GADGET particles =================*/
/*================= read in GADGET velocities =================*/
if(FORMAT == 2)
{
GADGET_SKIP;
fread(DATA,sizeof(char),blklen,icfile);
DATA[4] = '\0';
fprintf(stderr,"reading... %s",DATA);
GADGET_SKIP;
}
else
{
if (ifile==0)
fprintf(stderr,"reading ");
}
GADGET_SKIP;
if (ifile==0)
fprintf(stderr,"(%8.2g MB) ... ",blklen/1024./1024.);
for(i=0;i<no_part;i++)
{
/* read */
if(DGADGET)
{
ReadDouble(icfile,&(ddummy[0]),SWAPBYTES);
ReadDouble(icfile,&(ddummy[1]),SWAPBYTES);
ReadDouble(icfile,&(ddummy[2]),SWAPBYTES);
}
else
{
ReadFloat(icfile,&(fdummy[0]),SWAPBYTES);
ReadFloat(icfile,&(fdummy[1]),SWAPBYTES);
ReadFloat(icfile,&(fdummy[2]),SWAPBYTES);
ddummy[0] = fdummy[0];
ddummy[1] = fdummy[1];
ddummy[2] = fdummy[2];
}
(*out_vx)[ifile][i] = fdummy[0];
(*out_vy)[ifile][i] = fdummy[1];
(*out_vz)[ifile][i] = fdummy[2];
}
fprintf(stderr,"\tvelocities done: ifile %d\n",ifile);
/*================= read in GADGET velocities =================*/
/* massflag == 1 indicates that massarr[i] = 0 which shouldnt be the case for HALOGEN */
if(massflag==1)
{
fprintf(stderr,"ERROR: HALOGEN does not expect to encounter varying masses\n");
exit(0);
}
return no_part;
}
