#include <cstdlib>
#include <cstdio>

#include "util.h"

const uint MAX_FILESIZE = 2 * 1024 * 1024; // 2MB

char *
utilDumpTextFile(const char* filename)
{
	// log('info: loading filename, blablabla);
	// TODO: log errors
	std::FILE* fp = std::fopen(filename, "rb");
	assert(fp);

	std::fseek(fp, 0, SEEK_END);
	uint length = std::ftell(fp);
	std::fseek(fp, 0, SEEK_SET);
	assert(length < MAX_FILESIZE);
	// TODO: check error codes for fseek and ftell

	char* buf = (char *) std::calloc(length, sizeof(char));
	assert(buf);

	std::fread(buf, sizeof(char), length, fp);
	// TODO: check fp w/ ferror() here
	
	return buf;
}

// TODO: search/replace other calls to stdd::free with this
void
utilSafeFree(void* mem)
{
	assert(mem != nullptr);
	std::free(mem);
	mem = nullptr;
}