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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#ifdef __GNUC__
#include <unistd.h>
#endif
#include <fcntl.h>
#include <sys/stat.h>
#include "demolib_prefs.h"
#include "file.h"
#include "memfile.h"
#include "../exception.h"
#if DEMOLIB_DATA_DIR_NONMMAP
MemFile::MemFile(char *filename)
{
struct stat buf;
FILE *file;
int i = 0;
if (stat(filename, &buf) == -1)
throw new FileNotFoundException("couldn't find file in data/");
file = fopen(filename, "rb");
if (file == NULL)
throw new FatalException("error in opening file in data/");
this->data = (char *)(malloc(buf.st_size));
if (this->data == NULL) throw new FatalException("Out of memory");
while (i < buf.st_size) {
int num_bytes = buf.st_size - i;
int err;
if (num_bytes > 4096) num_bytes = 4096;
err = fread(this->data + i, num_bytes, 1, file);
if (err <= 0)
throw new FatalException("Error on read()");
i += err * num_bytes;
}
this->length = buf.st_size;
fclose(file);
}
MemFile::~MemFile()
{
free(this->data);
}
char *MemFile::get_data()
{
return this->data;
}
int MemFile::data_length()
{
return this->length;
}
#endif /* DEMOLIB_DATA_DIR_NONMMAP */
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