NAME 
src/inter_misc.c - Parrot Interpreter miscellaneous functions
DESCRIPTION
NCI function setup,
compiler registration,
interpinfo,
and sysinfo opcodes.
Functions
*/
#include "parrot/parrot.h" #include "inter_misc.str" #include "../compilers/imcc/imc.h"
/* XXX Put me somewhere else */ void Parrot_NCI_nci_make_raw_nci(PARROT_INTERP, PMC *method, void *func);
/* HEADERIZER HFILE: include/parrot/interpreter.h */
/*
FUNCDOC: register_nci_method
Create an entry in the nci_method_table for the given NCI method of PMC class type.
*/
PARROT_API void register_nci_method(PARROT_INTERP, const int type, void *func, const char *name, const char *proto) { PMC * const method = pmc_new(interp, enum_class_NCI); STRING * const method_name = string_make(interp, name, strlen(name), NULL, PObj_constant_FLAG|PObj_external_FLAG); PMC *proxy;
/* create call func */
VTABLE_set_pointer_keyed_str(interp, method,
string_make(interp, proto, strlen(proto), NULL,
PObj_constant_FLAG|PObj_external_FLAG),
func);
/* insert it into namespace */
VTABLE_set_pmc_keyed_str(interp, interp->vtables[type]->_namespace,
method_name, method);
/* Also need to list the method in the PMCProxy PMC's method list, so it
* can be introspected. */
proxy = VTABLE_get_pmc_keyed_int(interp, interp->pmc_proxies, type);
VTABLE_set_pmc_keyed_str(interp, PARROT_PMCPROXY(proxy)->methods,
method_name, method);
}
PARROT_API void register_raw_nci_method_in_ns(PARROT_INTERP, const int type, void *func, const char *name) { PMC * const method = pmc_new(interp, enum_class_NCI); STRING * const method_name = string_make(interp, name, strlen(name), NULL, PObj_constant_FLAG|PObj_external_FLAG); PMC *proxy;
/* setup call func */
Parrot_NCI_nci_make_raw_nci(interp, method, func);
/* insert it into namespace */
VTABLE_set_pmc_keyed_str(interp, interp->vtables[type]->_namespace,
method_name, method);
/* Also need to list the method in the PMCProxy PMC's method list, so it
* can be introspected. */
proxy = VTABLE_get_pmc_keyed_int(interp, interp->pmc_proxies, type);
VTABLE_set_pmc_keyed_str(interp, PARROT_PMCPROXY(proxy)->methods,
method_name, method);
}
/*
FUNCDOC: Parrot_mark_method_writes
Mark the method name on PMC type type as one that modifies the PMC.
*/
PARROT_API void Parrot_mark_method_writes(PARROT_INTERP, int type, NOTNULL(const char *name)) { STRING *const str_name = const_string(interp, name); PMC *const pmc_true = pmc_new(interp, enum_class_Integer); PMC *const method = VTABLE_get_pmc_keyed_str( interp, interp->vtables[type]->_namespace, str_name); VTABLE_set_integer_native(interp, pmc_true, 1); VTABLE_setprop(interp, method, const_string(interp, "write"), pmc_true); }
/*
FUNCDOC: Parrot_compreg
Register a parser/compiler function.
*/
PARROT_API void Parrot_compreg(PARROT_INTERP, STRING *type, Parrot_compiler_func_t func) { PMC* const iglobals = interp->iglobals; PMC *hash, *nci; STRING *sc;
hash = VTABLE_get_pmc_keyed_int(interp, interp->iglobals,
IGLOBALS_COMPREG_HASH);
if (!hash) {
hash = pmc_new_noinit(interp, enum_class_Hash);
VTABLE_init(interp, hash);
VTABLE_set_pmc_keyed_int(interp, iglobals,
(INTVAL)IGLOBALS_COMPREG_HASH, hash);
}
nci = pmc_new(interp, enum_class_Compiler);
VTABLE_set_pmc_keyed_str(interp, hash, type, nci);
/* build native call interface for the C sub in "func" */
sc = CONST_STRING(interp, "PJt");
VTABLE_set_pointer_keyed_str(interp, nci, sc, (void*)func);
}
/*
FUNCDOC: Parrot_compile_string
Compile code string.
*/
PARROT_API PARROT_WARN_UNUSED_RESULT PARROT_CAN_RETURN_NULL PMC * Parrot_compile_string(PARROT_INTERP, NOTNULL(STRING *type), NOTNULL(const char *code), NOTNULL(STRING **error)) { if (string_compare(interp, const_string(interp, "PIR"), type) == 0) return IMCC_compile_pir_s(interp, code, error);
if (string_compare(interp,const_string(interp, "PASM"), type) == 0)
return IMCC_compile_pasm_s(interp, code, error);
*error=const_string(interp, "Invalid interpreter type");
return NULL;
}
/*
FUNCDOC: Parrot_compile_file
Compile code file.
*/
PARROT_API PARROT_CANNOT_RETURN_NULL void * Parrot_compile_file(PARROT_INTERP, NOTNULL(const char *fullname), NOTNULL(STRING **error)) { return IMCC_compile_file_s(interp, fullname, error); }
#ifdef GC_IS_MALLOC # if 0 struct mallinfo { int arena; /* non-mmapped space allocated from system */ int ordblks; /* number of free chunks */ int smblks; /* number of fastbin blocks */ int hblks; /* number of mmapped regions */ int hblkhd; /* space in mmapped regions */ int usmblks; /* maximum total allocated space */ int fsmblks; /* space available in freed fastbin blocks */ int uordblks; /* total allocated space */ int fordblks; /* total free space */ int keepcost; /* top-most, releasable (via malloc_trim) * space */ }; # endif extern struct mallinfo mallinfo(void); #endif /* GC_IS_MALLOC */
/*
FUNCDOC: interpinfo
what specifies the type of information you want about the interpreter.
FUNCDOC: interpinfo_p
what specifies the type of information you want about the interpreter.
*/
PARROT_API INTVAL interpinfo(PARROT_INTERP, INTVAL what) { INTVAL ret = 0; int j; Arenas *arena_base = interp->arena_base;
switch (what) {
case TOTAL_MEM_ALLOC:
#ifdef GC_IS_MALLOC
# if 0
interp->memory_allocated = mallinfo().uordblks;
# endif
#endif
ret = arena_base->memory_allocated;
break;
case DOD_RUNS:
ret = arena_base->dod_runs;
break;
case LAZY_DOD_RUNS:
ret = arena_base->lazy_dod_runs;
break;
case COLLECT_RUNS:
ret = arena_base->collect_runs;
break;
case ACTIVE_PMCS:
ret = arena_base->pmc_pool->total_objects -
arena_base->pmc_pool->num_free_objects;
break;
case ACTIVE_BUFFERS:
ret = 0;
for (j = 0; j < (INTVAL)arena_base->num_sized; j++) {
Small_Object_Pool * const header_pool =
arena_base->sized_header_pools[j];
if (header_pool)
ret += header_pool->total_objects -
header_pool->num_free_objects;
}
break;
case TOTAL_PMCS:
ret = arena_base->pmc_pool->total_objects;
break;
case TOTAL_BUFFERS:
ret = 0;
for (j = 0; j < (INTVAL)arena_base->num_sized; j++) {
Small_Object_Pool * const header_pool =
arena_base->sized_header_pools[j];
if (header_pool)
ret += header_pool->total_objects;
}
break;
case HEADER_ALLOCS_SINCE_COLLECT:
ret = arena_base->header_allocs_since_last_collect;
break;
case MEM_ALLOCS_SINCE_COLLECT:
ret = arena_base->mem_allocs_since_last_collect;
break;
case TOTAL_COPIED:
ret = arena_base->memory_collected;
break;
case IMPATIENT_PMCS:
ret = arena_base->num_early_DOD_PMCs;
break;
case EXTENDED_PMCS:
ret = arena_base->num_extended_PMCs;
break;
default: /* or a warning only? */
real_exception(interp, NULL, UNIMPLEMENTED,
"illegal argument in interpinfo");
}
return ret;
}
PARROT_API PARROT_WARN_UNUSED_RESULT PARROT_CAN_RETURN_NULL PMC* interpinfo_p(PARROT_INTERP, INTVAL what) { switch (what) { case CURRENT_SUB: return CONTEXT(interp->ctx)->current_sub; case CURRENT_CONT: { PMC * const cont = CONTEXT(interp->ctx)->current_cont; if (!PMC_IS_NULL(cont) && cont->vtable->base_type == enum_class_RetContinuation) return VTABLE_clone(interp, cont); return cont; } case CURRENT_OBJECT: return CONTEXT(interp->ctx)->current_object; case CURRENT_LEXPAD: return CONTEXT(interp->ctx)->lex_pad; default: /* or a warning only? */ real_exception(interp, NULL, UNIMPLEMENTED, "illegal argument in interpinfo"); } return PMCNULL; }
PARROT_API PARROT_WARN_UNUSED_RESULT PARROT_CANNOT_RETURN_NULL STRING* interpinfo_s(PARROT_INTERP, INTVAL what) { STRING *fullname, *basename; char *fullname_c; int pos;
switch (what) {
case EXECUTABLE_FULLNAME:
return VTABLE_get_string(interp,
VTABLE_get_pmc_keyed_int(interp, interp->iglobals,
IGLOBALS_EXECUTABLE));
case EXECUTABLE_BASENAME:
/* Need to strip back to what follows the final / or \. */
fullname = VTABLE_get_string(interp,
VTABLE_get_pmc_keyed_int(interp, interp->iglobals,
IGLOBALS_EXECUTABLE));
fullname_c = string_to_cstring(interp, fullname);
pos = strlen(fullname_c) - 1;
while (pos > 0 && fullname_c[pos] != '/' && fullname_c[pos] != '\\')
pos--;
if (pos > 0)
pos++;
basename = string_from_cstring(interp, fullname_c + pos, 0);
mem_sys_free(fullname_c);
return basename;
case RUNTIME_PREFIX:
fullname_c = Parrot_get_runtime_prefix(interp, NULL);
fullname = string_from_cstring(interp, fullname_c, 0);
mem_sys_free(fullname_c);
return fullname;
} /* switch */
real_exception(interp, NULL, UNIMPLEMENTED,
"illegal argument in interpinfo");
}
/*
FUNCDOC: sysinfo_i
Returns the system info.
info_wanted is one of:
PARROT_INTSIZE
PARROT_FLOATSIZE
PARROT_POINTERSIZE
In unknown info is requested then -1 is returned.
*/
PARROT_WARN_UNUSED_RESULT INTVAL sysinfo_i(SHIM_INTERP, INTVAL info_wanted) { switch (info_wanted) { case PARROT_INTSIZE: return sizeof (INTVAL); case PARROT_FLOATSIZE: return sizeof (FLOATVAL); case PARROT_POINTERSIZE: return sizeof (void *); default: return -1; } }
/*
FUNCDOC: sysinfo_s
Returns the system info string.
info_wanted is one of:
PARROT_OS
PARROT_OS_VERSION
PARROT_OS_VERSION_NUMBER
CPU_ARCH
CPU_TYPE
If unknown info is requested then and empty string is returned.
*/
PARROT_CANNOT_RETURN_NULL PARROT_WARN_UNUSED_RESULT STRING * sysinfo_s(PARROT_INTERP, INTVAL info_wanted) { switch (info_wanted) { case PARROT_OS: return string_from_literal(interp, BUILD_OS_NAME); case PARROT_OS_VERSION: case PARROT_OS_VERSION_NUMBER: case CPU_ARCH: case CPU_TYPE: default: return CONST_STRING(interp, ""); } }
/* * Local variables: * c-file-style: "parrot" * End: * vim: expandtab shiftwidth=4: */
