s_buff.h File Reference

#include "coeffs/si_gmp.h"

Go to the source code of this file.

Data Structures
struct	s_buff
struct	ssiInfo

Functions
s_buff	s_open (int fd)
s_buff	s_open_by_name (const char *n)
int	s_close (s_buff &f)
int	s_getc (s_buff F)
void	s_ungetc (int c, s_buff F)
int	s_readint (s_buff F)
long	s_readlong (s_buff F)
int	s_readbytes (char *buff, int len, s_buff F)
void	s_readmpz (s_buff F, mpz_ptr a)
void	s_readmpz_base (s_buff F, mpz_ptr a, int base)
int	s_isready (s_buff F)
int	s_iseof (s_buff F)

---

Data Structure Documentation

s_buff_s

struct s_buff_s

Definition at line 6 of file s_buff.h.

Data Fields
int	bp
char *	buff
int	end
int	fd
int	is_eof

ssiInfo

struct ssiInfo

Definition at line 20 of file s_buff.h.

Data Fields
s_buff	f_read
FILE *	f_write
int	fd_read
int	fd_write
char	level
pid_t	pid
char	quit_sent
ring	r
char	send_quit_at_exit

Function Documentation

s_close()

int s_close

(

s_buff &

f

)

Definition at line 45 of file s_buff.cc.

{
  if (F!=NULL)
  {
    int r=close(F->fd);
    omFreeSize(F->buff,S_BUFF_LEN);
    omFreeSize(F,sizeof(*F));
    F=NULL;
    return r;
  }
  return 0;
}

s_getc()

int s_getc

(

s_buff

F

)

Definition at line 58 of file s_buff.cc.

{
  if (F==NULL)
  {
    printf("link closed");
    return 0;
  }
  if (F->bp>=F->end)
  {
    memset(F->buff,0,S_BUFF_LEN); /*debug*/
    int r=si_read(F->fd,F->buff,S_BUFF_LEN);
    if (r<=0)
    {
      F->is_eof=1;
      return -1;
    }
    else
    {
      F->end=r-1;
      F->bp=0;
      return F->buff[0];
    }
  }
  /*else*/
  F->bp++;
  return F->buff[F->bp];
}

s_iseof()

int s_iseof

(

s_buff

F

)

Definition at line 254 of file s_buff.cc.

{
  if (F!=NULL) return F->is_eof;
  else         return 1;
}

s_isready()

int s_isready

(

s_buff

F

)

Definition at line 85 of file s_buff.cc.

{
  if (F==NULL)
  {
    printf("link closed");
    return 0;
  }
  if (F->bp>=F->end) return 0;
  int p=F->bp+1;
  while((p<F->end)&&(F->buff[p]<=' ')) p++;
  if (p>=F->end) return 0;
  return 1;
}

s_open()

s_buff s_open

(

int

fd

)

Definition at line 31 of file s_buff.cc.

{
  s_buff F=(s_buff)omAlloc0(sizeof(*F));
  F->fd=fd;
  F->buff=(char*)omAlloc(S_BUFF_LEN);
  return F;
}

s_open_by_name()

s_buff s_open_by_name

(

const char *

n

)

Definition at line 39 of file s_buff.cc.

{
  int fd=si_open(n,O_RDONLY);
  return s_open(fd);
}

s_readbytes()

int s_readbytes	(	char *	buff,
		int	len,
		s_buff	F
	)

Definition at line 168 of file s_buff.cc.

{
  if (F==NULL)
  {
    printf("link closed");
    return 0;
  }
  int i=0;
  while((!F->is_eof)&&(i<len))
  {
    buff[i]=s_getc(F);
    i++;
  }
  return i;
}

s_readint()

int s_readint

(

s_buff

F

)

Definition at line 112 of file s_buff.cc.

{
  if (F==NULL)
  {
    printf("link closed");
    return 0;
  }
  char c;
  int neg=1;
  int r=0;
  //int digit=0;
  do
  {
    c=s_getc(F);
  } while((!F->is_eof) && (c<=' '));
  if (c=='-') { neg=-1; c=s_getc(F); }
  while(isdigit(c))
  {
    //digit++;
    r=r*10+(c-'0');
    c=s_getc(F);
  }
  s_ungetc(c,F);
  //if (digit==0) { printf("unknown char %c(%d)\n",c,c); /*debug*/
  //                printf("buffer:%s\np=%d,e=%d\n",F->buff,F->bp,F->end);fflush(stdout); } /*debug*/
  return r*neg;
}

s_readlong()

long s_readlong

(

s_buff

F

)

Definition at line 140 of file s_buff.cc.

{
  if (F==NULL)
  {
    printf("link closed");
    return 0;
  }
  char c;
  long neg=1;
  long r=0;
  //int digit=0;
  do
  {
    c=s_getc(F);
  } while((!F->is_eof) && (c<=' '));
  if (c=='-') { neg=-1; c=s_getc(F); }
  while(isdigit(c))
  {
    //digit++;
    r=r*10+(c-'0');
    c=s_getc(F);
  }
  s_ungetc(c,F);
  //if (digit==0) { printf("unknown char %c(%d)\n",c,c); /*debug*/
  //                printf("buffer:%s\np=%d,e=%d\n",F->buff,F->bp,F->end);fflush(stdout); } /*debug*/
  return r*neg;
}

s_readmpz()

void s_readmpz	(	s_buff	F,
		mpz_ptr	a
	)

s_readmpz_base()

void s_readmpz_base	(	s_buff	F,
		mpz_ptr	a,
		int	base
	)

Definition at line 209 of file s_buff.cc.

{
  if (F==NULL)
  {
    printf("link closed");
    return;
  }
  mpz_set_ui(a,0);
  char c;
  int neg=1;
  do
  {
    c=s_getc(F);
  } while((!F->is_eof) && (c<=' '));
  if (c=='-') { neg=-1; c=s_getc(F); }
  char *str=(char*)omAlloc0(128);
  int str_l=128;
  int str_p=0;
  while(c>' ')
  {
    if ((isdigit(c))
    || ((c>='a') && (c<='z'))
    || ((c>='A') && (c<='Z')))
    {
      str[str_p]=c;
      str_p++;
    }
    else
    {
      s_ungetc(c,F);
      break;
    }
    if (str_p>=str_l)
    {
      int old_str_l=str_l;
      str_l=str_l*2;
      str=(char*)omRealloc(str,str_l);
      memset(str+old_str_l,0,old_str_l);
    }
    c=s_getc(F);
  }
  mpz_set_str(a,str,base);
  omFreeSize(str,str_l);
  if (neg==-1) mpz_neg(a,a);
}

s_ungetc()

void s_ungetc	(	int	c,
		s_buff	F
	)

Definition at line 99 of file s_buff.cc.

{
  if (F==NULL)
  {
    printf("link closed");
  }
  else if (F->bp>=0)
  {
    F->buff[F->bp]=c;
    F->bp--;
  }
}