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Feat(read_lib): Gz lib format support #362

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Feat(read_lib): Gz lib format support #362

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adf9b4e
Feat(read_lib): Support .gz file
wjrforcyber Jan 21, 2025
303907e
Update(read_lib): Remove redundant header
wjrforcyber Jan 21, 2025
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62 changes: 54 additions & 8 deletions src/map/scl/sclLiberty.c
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@
#include <fnmatch.h>
#endif

#include "misc/zlib/zlib.h"
#include "sclLib.h"
#include "misc/st/st.h"
#include "map/mio/mio.h"
Expand Down Expand Up @@ -552,14 +553,59 @@ long Scl_LibertyFileSize( char * pFileName )
fclose( pFile );
return nFileSize;
}
char * Scl_LibertyFileContents( char * pFileName, long nContents )

static char * Io_LibLoadFileGz( char * pFileName, long * pnFileSize )
{
FILE * pFile = fopen( pFileName, "rb" );
char * pContents = ABC_ALLOC( char, nContents+1 );
long RetValue = 0;
RetValue = fread( pContents, nContents, 1, pFile );
fclose( pFile );
pContents[nContents] = 0;
const int READ_BLOCK_SIZE = 100000;
gzFile pFile;
char * pContents;
long amtRead, readBlock, nFileSize = READ_BLOCK_SIZE;
pFile = gzopen( pFileName, "rb" ); // if pFileName doesn't end in ".gz" then this acts as a passthrough to fopen
pContents = ABC_ALLOC( char, nFileSize );
readBlock = 0;
while ((amtRead = gzread(pFile, pContents + readBlock * READ_BLOCK_SIZE, READ_BLOCK_SIZE)) == READ_BLOCK_SIZE) {
//Abc_Print( 1,"%d: read %d bytes\n", readBlock, amtRead);
nFileSize += READ_BLOCK_SIZE;
pContents = ABC_REALLOC(char, pContents, nFileSize);
++readBlock;
}
//Abc_Print( 1,"%d: read %d bytes\n", readBlock, amtRead);
assert( amtRead != -1 ); // indicates a zlib error
nFileSize -= (READ_BLOCK_SIZE - amtRead);
gzclose(pFile);
*pnFileSize = nFileSize;
return pContents;
}

char * Scl_LibertyFileContents( char * pFileName, long * nContents )
{
char * pContents = NULL;
//if file ends in ".gz" then use gzopen
if ( !strncmp(pFileName+strlen(pFileName)-3,".gz", 3) )
{
FILE * pFile = fopen( pFileName, "rb" );
//char * pContents;
long RetValue = 0;
pContents = Io_LibLoadFileGz( pFileName, nContents );
if(pContents == NULL) {
printf( "Scl_LibertyFileContents(): The input file is unavailable (absent or open).\n" );
return NULL;
}
else {
RetValue = 1;
}
fclose( pFile );
}
// original .lib file
else
{
FILE * pFile = fopen( pFileName, "rb" );
pContents = ABC_ALLOC( char, nContents+1 );
long RetValue = 0;
RetValue = fread( pContents, *nContents, 1, pFile );
fclose( pFile );
pContents[*nContents] = 0;
}
return pContents;
}
void Scl_LibertyStringDump( char * pFileName, Vec_Str_t * vStr )
Expand Down Expand Up @@ -600,7 +646,7 @@ Scl_Tree_t * Scl_LibertyStart( char * pFileName )
memset( p, 0, sizeof(Scl_Tree_t) );
p->clkStart = Abc_Clock();
p->nContents = RetValue;
p->pContents = Scl_LibertyFileContents( pFileName, p->nContents );
p->pContents = Scl_LibertyFileContents( pFileName, &p->nContents );
// other
p->pFileName = Abc_UtilStrsav( pFileName );
p->nItermAlloc = 10 + Scl_LibertyCountItems( p->pContents, p->pContents+p->nContents );
Expand Down
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