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IO_stream.h
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IO_stream.h
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#ifndef _IO_H
#define _IO_H
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <zlib.h>
//#include <err.h>
#include <fcntl.h>
#include <unistd.h>
/*
typedef pFILE FILE *;
#define OPEN_STREAM(TYPE,fileno,mode) \
TYPE open_stream_##TYPE(char* filename,void(*f)(int , const char *)) { \
int fd ; \
if (strncmp(filename,"-", 1)==0) { \
fd = fileno; \
} else { \
fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0666 ); \
if (fd==-1) err(1, "Failed to create output file (%s)", filename); \
} \
TYPE out = f(fd,mode); \
return out; \
}
#define CREATE_OUTFILE(TYPE) \
TYPE creat_outfile_##TYPE(char *outfile,char *suffix) {
char *out=(char *)calloc(strlen(outfile)+strlen(suffix)+2,sizeof(char));
sprintf(out,"%s%s",outfile,suffix);
if (!strncmp(outfile,"-",1)){
TYPE fo=open_stream_##TYPE(out,fdopen);
}
else{
TYPE fo=open_stream_##TYPE(out,gzdopen);
}
return fo;
}
OPEN_STREAM(pFILE,STDOUT_FILENO,"wb")
OPEN_STREAM(gzFile,STDOUT_FILENO,"wb")
CREATE_OUTFILE(gzFile)
CREATE_OUTFILE(pFILE)
*/
static inline FILE *fopen_input_stream(const char *filename);
static inline FILE *fopen_output_stream(const char *filename);
static inline FILE *fcreat_infile(const char *infile,const char *suffix);
static inline FILE *fcreat_outfile(const char *outfile,const char *suffix);
static inline gzFile open_output_stream(char* filename);
static inline gzFile creat_outfile(char *outfile,char *suffix);
static inline gzFile open_input_stream(const char *filename);
FILE *fopen_input_stream(const char *filename){
int fd ;
if (strncmp(filename,"-", 1)==0 || !strcmp(filename,"")) {
fd = STDIN_FILENO;
} else {
#if defined(__APPLE__) && defined(__MACH__) || defined(unix) || defined(linux)
fd = open(filename, O_CREAT | O_RDONLY , 0666 );
#else
fd = _open(filename, _O_CREAT|_O_BINARY | _O_RDONLY , 0666 );
#endif
if (fd==-1) fprintf(stderr, "Failed to create input file (%s)", filename);
}
FILE *in = fdopen(fd,"rb");
return in;
}
FILE *fopen_output_stream(const char *filename) {
int fd ;
if (strncmp(filename,"-", 1)==0 || !strcmp(filename,"")) {
fd = STDOUT_FILENO;
} else {
#if defined(__APPLE__) && defined(__MACH__) || defined(unix) || defined(linux)
fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0666 );
#else
fd = _open(filename, _O_CREAT|_O_BINARY | _O_WRONLY | _O_APPEND |_O_TRUNC, 0666 );
#endif
if (fd==-1) fprintf(stderr, "Failed to create output file (%s)", filename);
}
FILE *out = fdopen(fd,"wb");
return out;
}
FILE *fcreat_infile(const char *infile,const char *suffix) {
char in[strlen(infile)+strlen(suffix)+2];
sprintf(in,"%s%s",infile,suffix);
FILE *fi=fopen_output_stream(in);
return fi;
}
FILE *fcreat_outfile(const char *outfile,const char *suffix) {
char *out=(char *)calloc(strlen(outfile)+strlen(suffix)+2,sizeof(char));
sprintf(out,"%s%s",outfile,suffix);
FILE *fo=fopen_output_stream(out);
return fo;
}
gzFile open_output_stream(char* filename) {
int fd ;
if (strncmp(filename,"-", 1)==0 || !strcmp(filename,"")) {
fd = STDOUT_FILENO;
} else {
#if defined(__APPLE__) && defined(__MACH__) || defined(unix) || defined(linux)
fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0666 );
#else
fd = _open(filename, _O_CREAT|_O_BINARY | _O_WRONLY | _O_APPEND |_O_TRUNC, 0666 );
#endif
if (fd==-1) fprintf(stderr, "Failed to create output file (%s)", filename);
}
gzFile out = gzdopen(fd,"wb");
return out;
}
gzFile creat_outfile(char *outfile,char *suffix) {
char *out=(char *)calloc(strlen(outfile)+strlen(suffix)+2,sizeof(char));
sprintf(out,"%s%s",outfile,suffix);
gzFile fo=open_output_stream(out);
return fo;
}
gzFile open_input_stream(const char *filename){
int fd ;
if (strncmp(filename,"-", 1)==0 || !strcmp(filename,"")) {
fd = STDIN_FILENO;
} else {
#if defined(__APPLE__) && defined(__MACH__) || defined(unix) || defined(linux)
fd = open(filename, O_CREAT | O_RDONLY, 0666 );
#else
fd = _open(filename, _O_CREAT|_O_BINARY | _O_RDONLY , 0666 );
#endif
if (fd==-1) fprintf(stderr, "Failed to create input file (%s)", filename);
}
gzFile in = gzdopen(fd,"rb");
return in;
}
#endif