int main(int argc, char ** argv) {
// Register release_allocator() to run when program exits normally.
if( atexit(release_allocator) != 0 )
err_sys("Can't register release_allocator().\n");
// PARSE INPUT ARGUMENTS
unsigned int BASIC_BLOCK_SIZE;
unsigned int MEMORY_LENGTH;
int b_flag = 0, // Used to provide default argument values if
s_flag = 0; // none are given.
_Bool o_flag = 0;
opterr = 0; // Disable getopt() error message.
// gets the arguments from the command line and rounds them up to the nearest
// power of two
int c;
set_output_flag(0);
while( (c = getopt(argc, argv, OPTSTR)) != -1 ){
switch(c){
case 'b':
b_flag = 1;
BASIC_BLOCK_SIZE = convert(atoi(optarg));
break;
case 's':
s_flag = 1;
MEMORY_LENGTH = convert(atoi(optarg));
break;
case 'o':
set_output_flag(1);
break;
};
}
// Provide default arguments if needed.
if ( !(b_flag) ){
BASIC_BLOCK_SIZE = 128; // Set default to 128 B
printf("No argument provided; using default BASIC_BLOCK_SIZE: 128 B\n");
}
if ( !(s_flag) ){
MEMORY_LENGTH = 524288; // Set default to 512 KiB
printf("No argument provided; using default MEMORY_LENGTH: 512 KiB\n\n");
}
printf("Basic Block Size: %d B\nMemory Size: %d B\n",
BASIC_BLOCK_SIZE,MEMORY_LENGTH);
//==============================================================================
// initialize the allocator
unsigned int allocate_flag = init_allocator(BASIC_BLOCK_SIZE, MEMORY_LENGTH);
if(allocate_flag == 0){
printf("\nAllocator initialization error.");
return 0;
}
// Otherwise, run ackerman_main()
ackerman_main();
return 0;
}
static void set_output_s(char *a)
{
set_output_flag(AUDIO_OUT_INTERNAL_SPEAKER);
}
static void set_output_l(char *a)
{
set_output_flag(AUDIO_OUT_LINE_OUT);
}
static void set_output_h(char *a)
{
set_output_flag(AUDIO_OUT_HEADPHONES);
}