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|
/*
* Copyright (c) 1999-2003 Smithsonian Astrophysical Observatory
*/
/*
*
* filtprog_c.c -- support for filters using the C compiler
*
*/
#include <filter.h>
#include <swap.h>
#include <regions_h.h>
#include <events_c.h>
#include <image_c.h>
#include <evregions_c.h>
#include <imregions_c.h>
#include <xalloc_c.h>
#include <swap_c.h>
/*
*
* Private Routines
*
*/
#ifdef ANSI_FUNC
static char *
GetType(int t)
#else
static char *GetType(t)
int t;
#endif
{
switch(t){
case 'A':
return("char");
case 'B':
return("unsigned char");
case 'I':
return("short");
case 'U':
return("unsigned short");
case 'J':
return("int");
case 'V':
return("unsigned int");
case 'K':
return("long long");
case 'E':
return("float");
case 'D':
return("double");
case 'X':
return("char");
case 'L':
return("char");
default:
return("char");
}
}
#ifdef ANSI_FUNC
static double
GetTloff(int t)
#else
static double GetTloff(t)
int t;
#endif
{
switch(t){
case 'B':
case 'I':
case 'U':
case 'J':
case 'V':
case 'K':
case 'X':
return 1.0;
case 'E':
case 'D':
return 0.5;
default:
return 1.0;
}
}
#ifdef ANSI_FUNC
static char *
_FilterInitString(char *filtstr)
#else
static char *_FilterInitString(filtstr)
char *filtstr;
#endif
{
char *ibuf, *iptr, *fptr;
char *s, *t;
int paren=0;
ibuf = xcalloc(strlen(filtstr)*10, sizeof(char));
/* make sure we have at least one shape */
if( !FilterShapeCount() )
return ibuf;
iptr = ibuf;
fptr = filtstr;
while( *fptr ){
/* look for beginning of region routine */
if( !(s=strstr(fptr, "im")) && !(s=strstr(fptr, "ev")) )
break;
t = s+2;
if( !*t )
break;
/* which is followed by a region and open paren */
if( strncmp(t, "annulus(", 8) &&
strncmp(t, "box(", 4) &&
strncmp(t, "circle(", 7) &&
strncmp(t, "ellipse(", 8) &&
strncmp(t, "line(", 5) &&
strncmp(t, "panda(", 6) &&
strncmp(t, "bpanda(", 7) &&
strncmp(t, "cpanda(", 7) &&
strncmp(t, "epanda(", 7) &&
strncmp(t, "pie(", 4) &&
strncmp(t, "qtpie(", 6) &&
strncmp(t, "point(", 6) &&
strncmp(t, "nannulus(", 9) &&
strncmp(t, "nbox(", 5) &&
strncmp(t, "ncircle(", 8) &&
strncmp(t, "nellipse(", 9) &&
strncmp(t, "npie(", 5) &&
strncmp(t, "vannulus(", 9) &&
strncmp(t, "vbox(", 5) &&
strncmp(t, "vcircle(", 8) &&
strncmp(t, "vellipse(", 9) &&
strncmp(t, "vpie(", 5) &&
strncmp(t, "vpoint(", 7) &&
strncmp(t, "polygon(", 8) &&
strncmp(t, "field(", 6) &&
strncmp(t, "imagemask(", 10) ){
fptr = t;
continue;
}
/* copy region name up to open paren */
for(fptr=s; *fptr && *fptr!='('; fptr++){
*iptr++ = *fptr;
}
/* append init suffix */
*iptr++ = 'i';
/* copy the paren */
if( *fptr == '(' ){
*iptr++ = *fptr++;
paren++;
}
/* copy til end of region, i.e., when paren goes to 0 */
while( *fptr && paren ){
if( *fptr == '(' )
paren++;
if( *fptr == ')' )
paren--;
*iptr++ = *fptr++;
}
/* copy ';' */
*iptr++ = ';';
}
return(ibuf);
}
/*
*
* FilterProgOpen_C -- return filter program as a file for writing
*
*/
#ifdef ANSI_FUNC
static int
FilterProgOpen_C (Filter filter)
#else
static int FilterProgOpen_C(filter)
Filter filter;
#endif
{
int fd;
char *ccstr=NULL;
char prefix[SZ_LINE];
char tbuf[SZ_LINE];
char *tmpdir=NULL;
#if HAVE_CYGWIN
char *s;
#endif
/* make sure we have something to work with */
if( !filter )
return(0);
/* see if the user specified a compiler explicitly */
if( !(ccstr = getenv("FILTER_CC")) &&
!(ccstr = getenv("CC")) &&
!(ccstr = FILTER_CC) ){
ccstr = "gcc";
}
/* make sure we have a compiler */
if( !(filter->cc = Access(ccstr, "x")) &&
!(filter->cc = Find(ccstr, "x", NULL, FilterPath())) &&
!(filter->cc = Find("gcc", "x", NULL, FilterPath())) &&
!(filter->cc = Find("cc", "x", NULL, FilterPath())) &&
!(filter->cc = Find("cc", "x", NULL, ".")) &&
!(filter->cc = Find("cc", "x", NULL, CC_PATH)) ){
gerror(stderr, "no compiler found for filter compilation\n");
return(0);
}
/* determine whether communication is via Unix pipes or Win32 pipes */
filter->pipeos = PIPE_UNIX;
#if HAVE_MINGW32
filter->pipeos = PIPE_WIN32;
#endif
#if HAVE_CYGWIN
if( (s=strrchr(filter->cc, '/')) ){
s++;
}
else if( (s=strrchr(filter->cc, '\\')) ){
s++;
} else {
s = filter->cc;
}
if( !strcasecmp(s, "tcc") || !strcasecmp(s, "tcc.exe") ||
!strcasecmp(s, "pcc") || !strcasecmp(s, "pcc.exe") ){
filter->pipeos = PIPE_WIN32;
}
#endif
/* final check on ptype: if we wanted dynamic but had no gcc, use process */
if( (filter->ptype == PTYPE_DYNAMIC) && !strstr(filter->cc, "gcc") )
filter->ptype = PTYPE_PROCESS;
/* get default file names */
snprintf(tbuf, SZ_LINE, "$FILTER_OBJDIR:$FILTER_LIBDIR:%s:$HOME/.funtools:$SAORD_ROOT/lib:/usr/lib:/usr/local/lib:/opt/local/lib", OBJPATH);
switch( filter->type ){
case TYPE_EVENTS:
/* normally, we filter events analytically */
if( !filter->evsect )
/* filter->objs = Find("evregions.o", "r", NULL, tbuf); */
filter->objs = Find("libfuntools.a", "r", NULL, tbuf);
/* if evsect=xxx is specified, we filter by image pixels */
else
/* filter->objs = Find("imregions.o", "r", NULL, tbuf); */
filter->objs = Find("libfuntools.a", "r", NULL, tbuf);
break;
case TYPE_IMAGE:
/* image are filtered by image pixels */
/* filter->objs = Find("imregions.o", "r", NULL, tbuf); */
filter->objs = Find("libfuntools.a", "r", NULL, tbuf);
break;
}
/* if we wanted to a process, but have no objects, use self-contained */
if( (filter->ptype == PTYPE_PROCESS) && !filter->objs )
filter->ptype = PTYPE_CONTAINED;
/* allow extra stuff on the command line */
if( !(filter->cflags = xstrdup(getenv("FILTER_CFLAGS"))) &&
!(filter->cflags = xstrdup(FILTER_CFLAGS)) )
filter->cflags = xstrdup(" ");
if( !(filter->extra = xstrdup(getenv("FILTER_EXTRA"))) )
filter->extra = xstrdup(" ");
/* set shared switches for gcc */
if( strstr(filter->cc, "gcc") )
filter->shflags = xstrdup(GCC_SHARED_FLAGS);
/* get prefix for filter source and program */
if( !(tmpdir = (char *)getenv("FILTER_TMPDIR")) &&
!(tmpdir = (char *)getenv("TMPDIR")) &&
!(tmpdir = (char *)getenv("TMP")) )
tmpdir = DEFAULT_FILTER_TMPDIR;
if( !*tmpdir )
tmpdir = ".";
#if HAVE_MINGW32
snprintf(prefix, SZ_LINE, "%s\\f", tmpdir);
#else
snprintf(prefix, SZ_LINE, "%s/f", tmpdir);
#endif
/* make up the routine name when we dynamically load */
snprintf(tbuf, SZ_LINE, "Filter%d%d", (int)getpid(), FilterNum());
filter->pname = xstrdup(tbuf);
/* make up name of C source file we will generate */
if( filter->debug >= 2 ){
filter->fp = stdout;
return(1);
}
else{
if( (fd=mkrtemp(prefix, ".c", tbuf, SZ_LINE, 1)) < 0 ){
gerror(stderr, "could not generate C filter source name: %s\n",
prefix);
return(0);
}
filter->code = xstrdup(tbuf);
if( !(filter->fp = fdopen(fd, "w+b")) ){
gerror(stderr, "could not open C filter source file: %s\n",
tbuf);
return(0);
}
}
/* make up the name of the program we will compile into.
we make this different from the .c file name to make interception
by an intruder harder */
if( mkrtemp(prefix, NULL, tbuf, SZ_LINE, 0) < 0 ){
gerror(stderr, "could not generate C filter program name: %s\n",
prefix);
return(0);
}
#if HAVE_MINGW32
strcat(tbuf, ".exe");
#endif
filter->prog = xstrdup(tbuf);
return(1);
}
/*
*
* FilterProgPrepend_C -- prepend the filter code
*
*/
#ifdef ANSI_FUNC
static int
FilterProgPrepend_C (Filter filter)
#else
static int FilterProgPrepend_C(filter)
Filter filter;
#endif
{
char *s=NULL;
char *contents=NULL;
FILE *fd;
/* make sure we have something to work with */
if( !filter )
return(0);
/* make sure we are not in debug mode */
if( filter->debug >= 2 )
return(1);
/* init temps */
fd = filter->fp;
/* initialize with process type */
switch(filter->ptype){
case PTYPE_CONTAINED:
fprintf(fd, "#define FILTER_PTYPE c\n");
break;
case PTYPE_DYNAMIC:
fprintf(fd, "#define FILTER_PTYPE d\n");
break;
case PTYPE_PROCESS:
fprintf(fd, "#define FILTER_PTYPE p\n");
break;
}
/* we want the byte order up at the top */
if( is_bigendian() ){
fprintf(fd, "#define MYBYTE_ORDER 4321\n");
}
else{
fprintf(fd, "#define MYBYTE_ORDER 1234\n");
}
/* for some compilers (e.g. pcc), we need to minimize use of #include */
if( (s=strrchr(filter->cc, '/')) ){
s++;
} else {
s = filter->cc;
}
if( !strcasecmp(s, "pcc") || !strcasecmp(s, "pcc.exe") ){
fprintf(fd, "#define MINIMIZE_INCLUDES 1\n");
}
/* do we need windows pipes? */
if( filter->pipeos == PIPE_WIN32 ){
fprintf(fd, "#define USE_WIN32 1\n");
fprintf(fd, "#include <windows.h>\n");
}
/* prepend the filter header */
contents = REGIONS_H;
if( (contents != NULL) && (*contents != '\0') ){
fprintf(fd, "%s\n", contents);
}
/* these are implemented as aliases */
fprintf(fd, "#define evvcircle evvannulus\n");
fprintf(fd, "#define evncircle evnannulus\n");
fprintf(fd, "#define imvcirclei imvannulusi\n");
fprintf(fd, "#define imncirclei imnannulusi\n");
fprintf(fd, "#define imvcircle imvannulus\n");
fprintf(fd, "#define imncircle imnannulus\n");
fprintf(fd, "#define evcpanda evpanda\n");
fprintf(fd, "#define imcpandai impandai\n");
fprintf(fd, "#define imcpanda impanda\n");
fprintf(fd, "\n");
/* add some math support */
if( is_bigendian() ){
fprintf(fd, "static unsigned char _nan[8]={0x7F,0xF0,1,1,1,1,1,1};\n");
}
else{
fprintf(fd, "static unsigned char _nan[8]={1,1,1,1,1,1,0xF0,0x7F};\n");
}
fprintf(fd, "#define NaN *((double *)_nan)\n");
fprintf(fd, "#define div(a,b) (feq(b,0)?(NaN):(a/b))\n");
fprintf(fd, "\n");
return(1);
}
/*
*
* FilterProgWrite_C -- write the symbols for filtering
*
*/
#ifdef ANSI_FUNC
static int
FilterProgWrite_C(Filter filter)
#else
static int FilterProgWrite_C(filter)
Filter filter;
#endif
{
int i;
int offset;
int pad;
int dsize;
int evsize;
int tltyps[2];
double tlmins[2];
double binsizs[2];
char vbuf[1024];
char *s, *t;
char *v;
char *ibuf;
char *filtstr;
char *contents=NULL;
char tbuf[SZ_LINE];
FILE *fd;
FilterSymbols sp;
FITSHead fhd;
/* make sure we have something to work with */
if( !filter )
return(0);
/* make sure we are init'ed */
if( filter->fhd == NULL ){
gerror(stderr, "symbol table not initialized\n");
return(0);
}
/* make sure we are init'ed */
if( filter->fp == NULL ){
gerror(stderr, "no output file for parser\n");
return(0);
}
/* get the filter string */
if( !(filtstr = (char *)_FilterString()) || !strcmp(filtstr, "()") ){
return(0);
}
/* init temps */
fhd = filter->fhd;
fd= filter->fp;
offset = 0;
evsize = 0;
/* ptype-specific processing */
switch(filter->ptype){
case PTYPE_CONTAINED:
/* Write code to output file -- must be done BEFORE we write the
region symbols, to avoid unintentional redefinitions */
if( filter->debug < 2 ){
/* we need the xalloc routines */
contents = XALLOC_C;
if( (contents != NULL) && (*contents != '\0') ){
fprintf(fd, "%s\n", contents);
}
/* region routines if not linking against previously compiled code */
switch( filter->type ){
case TYPE_EVENTS:
/* normally, we filter events analytically using evregions.o */
if( !filter->evsect )
contents = EVREGIONS_C;
/* if evsect=xxx is specified, we filter by image pixels */
else
contents = IMREGIONS_C;
break;
case TYPE_IMAGE:
/* image are filtered by image pixels */
contents = IMREGIONS_C;
break;
default:
break;
}
if( (contents != NULL) && (*contents != '\0') ){
/* use fprintf so that we handle \n correctly in TEMPLATE */
fprintf(fd, "%s\n", contents);
}
else{
gerror(stderr, "could not write filter subroutines\n");
return(0);
}
}
break;
}
/* always need the swap routines (they're part of the filter) */
contents = SWAP_C;
if( (contents != NULL) && (*contents != '\0') ){
fprintf(fd, "%s\n", contents);
}
/* output counts of shapes */
fprintf(fd, "#define NSHAPE %d\n",
FilterShapeCount());
fprintf(fd, "#define NREGION %d\n",
FilterRegionCount(TOK_IREG|TOK_EREG|TOK_NREG));
/* output the filter itself */
fprintf(fd, "#define FILTER %s\n", filtstr);
if( filter->debug < 2 ){
/* string version of the filter -- used to check for FIELD optimization */
fprintf(fd, "#define FILTSTR \"%s\"\n", filtstr);
/* output the initialization string */
ibuf = _FilterInitString(filtstr);
fprintf(fd, "#define FINIT %s\n", (ibuf && *ibuf)?ibuf:"");
if( ibuf ) xfree(ibuf);
}
/* for type image, we generate an initialization string */
switch(filter->type){
case TYPE_IMAGE:
fprintf(fd, "#define IMFILTRTN %s\n", filter->pname);
break;
case TYPE_EVENTS:
fprintf(fd, "#define EVFILTRTN %s\n", filter->pname);
/* output the event section and tlmin values, if necessary */
if( filter->evsect && FilterTlInfo(tlmins,binsizs,tltyps) ){
if( *filter->evsect == '"' )
fprintf(fd, "#define EVSECT %s\n", filter->evsect);
else
fprintf(fd, "#define EVSECT \"%s\"\n", filter->evsect);
fprintf(fd, "#define TLMINX %f\n", tlmins[0]);
fprintf(fd, "#define TLMINY %f\n", tlmins[1]);
for(i=0; i<2; i++)
if( binsizs[i] <= 0.0 ) binsizs[i] = 1.0;
if( (binsizs[0] == 1.0) && (binsizs[1] == 1.0) )
fprintf(fd, "#define USEBINSIZ 0\n");
else
fprintf(fd, "#define USEBINSIZ 1\n");
fprintf(fd, "#define BINSIZX %f\n", binsizs[0]);
fprintf(fd, "#define BINSIZY %f\n", binsizs[1]);
fprintf(fd, "#define TLOFF %f\n", GetTloff(tltyps[0]));
fprintf(fd, "#define TLOFF %f\n", GetTloff(tltyps[1]));
}
/* loop through the symbol table and process #defines */
for(i=0; i<filter->nsyms; i++){
sp = &(filter->symtab[i]);
/* skip accidentally empty ones */
if( (sp->name == NULL) || (*sp->name == '\0') )
continue;
/* process this type of symbol */
switch(sp->type){
case SYM_COL:
/* make sure we are aligned */
if( fhd->table->col[sp->idx].type == 'X' ){
switch(fhd->table->col[sp->idx].n){
case 8:
dsize = 1;
break;
case 16:
dsize = 2;
break;
case 32:
dsize = 4;
break;
default:
dsize = ft_sizeof(filter->fhd->table->col[sp->idx].type);
}
}
else{
dsize = ft_sizeof(filter->fhd->table->col[sp->idx].type);
}
pad = dsize - (offset % dsize);
if( pad == dsize ) pad = 0;
offset += pad;
evsize += pad;
sp->offset = offset;
if( fhd->table->col[sp->idx].scaled ){
snprintf(tbuf, SZ_LINE, "(%f+%f*(",
fhd->table->col[sp->idx].zero,
fhd->table->col[sp->idx].scale);
s = tbuf;
t = "))";
}
else{
s = "";
t = "";
}
if( fhd->table->col[sp->idx].n == 1 ){
fprintf(fd, "#define %s %s*((%s *)(SW%d(eptr+%d,%d,_swf,%d)))%s\n",
sp->name,
s,
GetType((int)fhd->table->col[sp->idx].type),
dsize,
offset,
dsize,
offset,
t);
}
else{
if( fhd->table->col[sp->idx].type == 'X' ){
switch(fhd->table->col[sp->idx].n){
case 8:
fprintf(fd, "#define %s %s*((%s *)(eptr+%d))%s\n",
sp->name, s, "unsigned char", offset, t);
break;
case 16:
fprintf(fd, "#define %s %s*((%s *)(SW2(eptr+%d,%d,_swf,%d)))%s\n",
sp->name, s, "unsigned short", offset, 2, offset, t);
break;
case 32:
fprintf(fd, "#define %s %s*((%s *)(SW4(eptr+%d,%d,_swf,%d)))%s\n",
sp->name, s, "unsigned int", offset, 4, offset, t);
break;
default:
fprintf(fd, "#define %s %s((%s *)(SW%d(eptr+%d,%d,_swf,%d)))%s\n",
sp->name,
s,
GetType((int)fhd->table->col[sp->idx].type),
dsize,
offset,
dsize,
offset,
t);
}
}
else if( fhd->table->col[sp->idx].type == 'A' ){
fprintf(fd, "#define %s acopy(eptr+%d,%d)\n",
sp->name,
offset,
fhd->table->col[sp->idx].n);
}
else{
fprintf(fd, "#define %s %s((%s *)(SW%d(eptr+%d,%d,_swf,%d)))%s\n",
sp->name,
s,
GetType((int)fhd->table->col[sp->idx].type),
dsize,
offset,
dsize,
offset,
t);
}
}
/* lower and upper case are both acceptable */
strcpy(vbuf, sp->name);
cluc(vbuf);
if( strcmp(vbuf, sp->name) ){
fprintf(fd, "#define %s %s\n", vbuf, sp->name);
}
culc(vbuf);
if( strcmp(vbuf, sp->name) ){
fprintf(fd, "#define %s %s\n", vbuf, sp->name);
}
/* bump pointers */
if( fhd->table->col[sp->idx].type == 'X' ){
offset +=
((fhd->table->col[sp->idx].size*fhd->table->col[sp->idx].n)+7)/8;
evsize +=
((fhd->table->col[sp->idx].size*fhd->table->col[sp->idx].n)+7)/8;
}
else{
offset += fhd->table->col[sp->idx].size*fhd->table->col[sp->idx].n;
evsize += fhd->table->col[sp->idx].size*fhd->table->col[sp->idx].n;
}
break;
case SYM_PAR:
/* we have to distinguish between numbers and strings here */
/* strip off enclosing white space */
(void)nowhite(sp->value, vbuf);
/* check for all white space */
if( *vbuf == '\0' ){
fprintf(fd, "#define %s \"\"\n", sp->name);
}
else{
/* see if its a pure number */
(void)strtod(vbuf, &v);
if( (v == NULL) || (*v == '\0') )
fprintf(fd, "#define %s %s\n", sp->name, vbuf);
else
fprintf(fd, "#define %s \"%s\"\n", sp->name, vbuf);
}
break;
}
}
/* make sure each record is aligned */
pad = 8 - (evsize % 8);
if( pad == 8 ) pad = 0;
evsize += pad;
/* make sure we have at least one byte to send to co-process */
if( evsize <=0 ) evsize = 1;
/* output the size of the filter record */
fprintf(fd, "#define EVSIZE %d\n", evsize);
fprintf(fd, "static char _swf[%d];\n", evsize);
/* save for later use */
filter->evsize = evsize;
break;
default:
break;
}
/* write out the mask structure */
if( filter->nmask && filter->masks &&
(filter->type == TYPE_EVENTS) && filter->evsect ){
fprintf(fd, "#define NMASK %d\n", filter->nmask);
fprintf(fd, "#define MASKDIM %d;\n", ft_naxis(filter->maskhd, 1));
fprintf(fd, "static FilterMaskRec _masks[]={\n");
/* copy all masks and translate x,y positions as needed */
for(i=0; i<filter->nmask; i++){
fprintf(fd, "{%d,%d,%d,%d}",
filter->masks[i].region,
filter->masks[i].y,
filter->masks[i].xstart,
filter->masks[i].xstop);
if( i != (filter->nmask -1) )
fprintf(fd, ",");
fprintf(fd, "\n");
}
fprintf(fd, "};\n");
}
else{
fprintf(fd, "#define NMASK 0\n");
fprintf(fd, "#define MASKDIM 0;\n");
fprintf(fd, "static FilterMask _masks=NULL;\n");
}
/* write it now */
fflush(fd);
return(1);
}
/*
*
* FilterProgAppend_C -- append the filter program body
*
*/
#ifdef ANSI_FUNC
static int
FilterProgAppend_C (Filter filter)
#else
static int FilterProgAppend_C(filter)
Filter filter;
#endif
{
char *contents=NULL;
/* make sure we have something to work with */
if( !filter )
return(0);
/* make sure we are not in debug mode */
if( filter->debug >= 2 )
return(1);
/* get body of filter program */
switch( filter->type ){
case TYPE_EVENTS:
contents = EVENTS_C;
break;
case TYPE_IMAGE:
contents = IMAGE_C;
break;
}
if( (contents != NULL) && (*contents != '\0') ){
/* use fprintf so that we handle \n correctly in TEMPLATE */
fprintf(filter->fp, "%s\n", contents);
return(1);
}
else{
gerror(stderr, "could not write body of filter program\n");
return(0);
}
}
/*
*
* FilterProgClose_C -- close the filter program file
*
*/
#ifdef ANSI_FUNC
static int
FilterProgClose_C (Filter filter)
#else
static int FilterProgClose_C(filter)
Filter filter;
#endif
{
/* make sure we have something to work with */
if( !filter )
return(0);
/* close file if we are not in debug mode */
if( (filter->debug < 2) && filter->fp ){
fclose(filter->fp);
filter->fp = NULL;
}
return(1);
}
/*
*
* FilterProgCompile_C -- compile the filter program
*
*/
#ifdef ANSI_FUNC
static int
FilterProgCompile_C (Filter filter)
#else
static int FilterProgCompile_C(filter)
Filter filter;
#endif
{
char *s;
char *math;
char tbuf[SZ_LINE];
char pmode[SZ_LINE];
char log[SZ_LINE];
char *devnull;
#ifdef USE_LAUNCH
char *stdfiles[3];
#else
char tbuf2[SZ_LINE];
#endif
int len;
int got;
int keep=0;
/* make sure we have something to work with */
if( !filter )
return(0);
/* make sure we are not in debug mode */
if( !filter->cc || (filter->debug >= 2) )
return(1);
/* flag whether to keep compiler files around */
if( !(s=getenv("FILTER_KEEP")) || !istrue(s) )
keep = 0;
else
keep = 1;
/* add math library, if necessary */
switch(filter->pipeos){
case PIPE_WIN32:
math = "";
break;
default:
math = "-lm";
break;
}
/* set up /dev/null */
#if HAVE_MINGW32
devnull = "nul";
#else
devnull = "/dev/null";
#endif
/* get log file name */
snprintf(log, SZ_LINE, "%s.log", filter->prog);
/* delete old version */
unlink(filter->prog);
switch(filter->ptype){
case PTYPE_PROCESS:
/* make up the compile command */
snprintf(tbuf, SZ_LINE, "%s %s -o %s %s %s %s %s",
filter->cc, filter->cflags, filter->prog, filter->code,
filter->objs ? filter->objs : " ",
filter->extra, math);
#ifndef USE_LAUNCH
snprintf(tbuf2, SZ_LINE, " 1>%s 2>%s", devnull, log);
strcat(tbuf, tbuf2);
#endif
strcpy(pmode, "x");
break;
case PTYPE_CONTAINED:
/* make up the compile command */
snprintf(tbuf, SZ_LINE, "%s %s -o %s %s %s %s",
filter->cc, filter->cflags, filter->prog, filter->code,
filter->extra, math);
#ifndef USE_LAUNCH
snprintf(tbuf2, SZ_LINE, " 1>%s 2>%s", devnull, log);
strcat(tbuf, tbuf2);
#endif
strcpy(pmode, "x");
break;
#ifdef USE_DL
case PTYPE_DYNAMIC:
snprintf(tbuf, SZ_LINE, "%s %s %s %s -o %s %s %s",
filter->cc, filter->cflags, filter->shflags,
filter->objs ? filter->objs : " ",
filter->prog, filter->code, filter->extra);
#ifndef USE_LAUNCH
snprintf(tbuf2, SZ_LINE, " 1>%s 2>%s", devnull, log);
strcat(tbuf, tbuf2);
#endif
strcpy(pmode, "r");
break;
#endif
default:
return(0);
}
/* issue the shell command to compile the program */
#ifdef USE_LAUNCH
stdfiles[0] = NULL;
stdfiles[1] = devnull;
stdfiles[2] = log;
got = Launch(tbuf, 1, stdfiles, NULL);
#else
got = system(tbuf);
#endif
/* delete the filter program body in any case */
if( !keep )
unlink(filter->code);
/* Sun cc can leave an extraneous .o around, which we don't want */
strcpy(tbuf, filter->code);
/* change .c to .o */
tbuf[strlen(tbuf)-1] = 'o';
unlink(tbuf);
/* ... actually its usually left in the current directory */
if( (s = strrchr(tbuf, '/')) )
unlink(s+1);
/* now we can see if we succeeded in issuing the command */
if( got < 0 ){
gerror(stderr, "could not run filter compilation\n");
return(0);
}
/* if we have an executable program, we succeeded */
if( (s=Find(filter->prog, pmode, NULL, NULL)) != NULL ){
unlink(log);
if( s ) xfree(s);
}
else{
s = FileContents(log, 0, &len);
if( s && *s && len ){
fprintf(stderr, "Compilation error message:\n%s\n", s);
}
if( !keep ){
unlink(log);
}
if( s ) xfree(s);
gerror(stderr, "filter compilation failed\n");
return(0);
}
/* good news */
return(1);
}
/*
*
* FilterProgEnd_C -- end the filtering process
*
*/
#ifdef ANSI_FUNC
static int
FilterProgEnd_C (Filter filter)
#else
int FilterProgEnd_C(filter)
Filter filter;
#endif
{
char *s;
int status=0;
/* make sure we have something to play with */
if( filter == NULL)
return(0);
/* delete the filter program */
unlink(filter->prog);
/* delete the filter program body, if necessary */
if( !(s=getenv("FILTER_KEEP")) || !istrue(s) )
unlink(filter->code);
return(status);
}
/*
*
* Public Routines
*
*/
/*
*
* FilterProgLoad_C -- load the routines needed to support C filtering
*
*/
#ifdef ANSI_FUNC
int
FilterProgLoad_C (Filter filter)
#else
int FilterProgLoad_C(filter)
Filter filter;
#endif
{
/* make sure we have something to work with */
if( !filter )
return(0);
filter->filt_open = FilterProgOpen_C;
filter->filt_prepend = FilterProgPrepend_C;
filter->filt_write = FilterProgWrite_C;
filter->filt_append = FilterProgAppend_C;
filter->filt_close = FilterProgClose_C;
filter->filt_compile = FilterProgCompile_C;
filter->filt_end = FilterProgEnd_C;
return(1);
}
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