factor/vm/factor.c

171 lines
3.6 KiB
C
Executable File

#include "master.h"
void default_parameters(F_PARAMETERS *p)
{
p->image = NULL;
/* We make a wild guess here that if we're running on ARM, we don't
have a lot of memory. */
#ifdef FACTOR_ARM
p->ds_size = 8 * CELLS;
p->rs_size = 8 * CELLS;
p->gen_count = 2;
p->code_size = 4;
p->young_size = 1;
p->aging_size = 6;
#else
p->ds_size = 32 * CELLS;
p->rs_size = 32 * CELLS;
p->gen_count = 3;
p->code_size = 4 * CELLS;
p->young_size = 2 * CELLS;
p->aging_size = 4 * CELLS;
#endif
p->secure_gc = false;
p->fep = false;
}
/* Get things started */
void init_factor(F_PARAMETERS *p)
{
/* Kilobytes */
p->ds_size = align_page(p->ds_size << 10);
p->rs_size = align_page(p->rs_size << 10);
/* Megabytes */
p->young_size <<= 20;
p->aging_size <<= 20;
p->code_size <<= 20;
/* Disable GC during init as a sanity check */
gc_off = true;
early_init();
if(p->image == NULL)
p->image = default_image_path();
srand(current_millis());
init_ffi();
init_stacks(p->ds_size,p->rs_size);
load_image(p);
init_c_io();
init_signals();
stack_chain = NULL;
userenv[CPU_ENV] = tag_object(from_char_string(FACTOR_CPU_STRING));
userenv[OS_ENV] = tag_object(from_char_string(FACTOR_OS_STRING));
userenv[CELL_SIZE_ENV] = tag_fixnum(sizeof(CELL));
performing_gc = false;
last_code_heap_scan = NURSERY;
collecting_aging_again = false;
stack_chain = NULL;
/* We can GC now */
gc_off = false;
}
INLINE bool factor_arg(const F_CHAR* str, const F_CHAR* arg, CELL* value)
{
int val;
if(SSCANF(str,arg,&val) > 0)
{
*value = val;
return true;
}
else
return false;
}
void init_factor_from_args(F_CHAR *image, int argc, F_CHAR **argv, bool embedded)
{
F_PARAMETERS p;
default_parameters(&p);
if(image) p.image = image;
CELL i;
posix_argc = argc;
posix_argv = safe_malloc(argc * sizeof(F_CHAR*));
posix_argv[0] = safe_strdup(argv[0]);
for(i = 1; i < argc; i++)
{
posix_argv[i] = safe_strdup(argv[i]);
if(factor_arg(argv[i],STR_FORMAT("-datastack=%d"),&p.ds_size));
else if(factor_arg(argv[i],STR_FORMAT("-retainstack=%d"),&p.rs_size));
else if(factor_arg(argv[i],STR_FORMAT("-generations=%d"),&p.gen_count));
else if(factor_arg(argv[i],STR_FORMAT("-young=%d"),&p.young_size));
else if(factor_arg(argv[i],STR_FORMAT("-aging=%d"),&p.aging_size));
else if(factor_arg(argv[i],STR_FORMAT("-codeheap=%d"),&p.code_size));
else if(STRCMP(argv[i],STR_FORMAT("-securegc")) == 0)
p.secure_gc = true;
else if(STRCMP(argv[i],STR_FORMAT("-fep")) == 0)
p.fep = true;
else if(STRNCMP(argv[i],STR_FORMAT("-i="),3) == 0)
p.image = argv[i] + 3;
}
init_factor(&p);
F_ARRAY *args = allot_array(ARRAY_TYPE,argc,F);
for(i = 1; i < argc; i++)
{
REGISTER_UNTAGGED(args);
CELL arg = tag_object(from_native_string(argv[i]));
UNREGISTER_UNTAGGED(args);
set_array_nth(args,i,arg);
}
userenv[ARGS_ENV] = tag_object(args);
const F_CHAR *executable_path = vm_executable_path();
if(!executable_path)
executable_path = argv[0];
userenv[EXECUTABLE_ENV] = tag_object(from_native_string(executable_path));
userenv[EMBEDDED_ENV] = (embedded ? T : F);
nest_stacks();
if(p.fep)
factorbug();
c_to_factor_toplevel(userenv[BOOT_ENV]);
unnest_stacks();
for(i = 0; i < argc; i++)
free(posix_argv[i]);
free(posix_argv);
}
char *factor_eval_string(char *string)
{
char* (*callback)(char*) = alien_offset(userenv[EVAL_CALLBACK_ENV]);
return callback(string);
}
void factor_eval_free(char *result)
{
free(result);
}
void factor_yield(void)
{
void (*callback)() = alien_offset(userenv[YIELD_CALLBACK_ENV]);
callback();
}
void factor_sleep(long ms)
{
void (*callback)() = alien_offset(userenv[SLEEP_CALLBACK_ENV]);
callback(ms);
}