PARROT_API
Parrot_Int
Parrot_api_string_free_exported_ascii(ARGIN(Parrot_PMC interp_pmc), ARGIN(char * const str))
{
ASSERT_ARGS(Parrot_api_string_free_exported_ascii)
EMBED_API_CALLIN(interp_pmc, interp);
if (str != NULL)
Parrot_str_free_cstring(str);
EMBED_API_CALLOUT(interp_pmc, interp);
}
void
Parrot_file_mkdir(PARROT_INTERP, ARGIN(STRING *path), INTVAL mode)
{
char *c_str = Parrot_str_to_platform_cstring(interp, path);
int result = mkdir(c_str, mode);
Parrot_str_free_cstring(c_str);
if (result)
THROW("mkdir");
}
void
Parrot_file_unlink(PARROT_INTERP, ARGIN(STRING *path))
{
char *c_str = Parrot_str_to_platform_cstring(interp, path);
int result = unlink(c_str);
Parrot_str_free_cstring(c_str);
if (result)
THROW("unlink");
}
STRING *
Parrot_getenv(PARROT_INTERP, ARGIN(STRING *str_name))
{
char * const name = Parrot_str_to_cstring(interp, str_name);
const DWORD size = GetEnvironmentVariable(name, NULL, 0);
char *buffer = NULL;
STRING *retv;
if (size == 0) {
Parrot_str_free_cstring(name);
return NULL;
}
buffer = (char *)mem_sys_allocate(size);
GetEnvironmentVariable(name, buffer, size);
Parrot_str_free_cstring(name);
retv = Parrot_str_from_platform_cstring(interp, buffer);
mem_sys_free(buffer);
return retv;
}
void
Parrot_setenv(PARROT_INTERP, STRING *str_name, STRING *str_value)
{
char * const name = Parrot_str_to_cstring(interp, str_name);
char * const value = Parrot_str_to_cstring(interp, str_value);
assert(name != NULL);
assert(value != NULL);
{
const int name_len = strlen(name);
const int value_len = strlen(value);
{
char * const envstring = (char * const)mem_internal_allocate(
name_len /* name */
+ 1 /* '=' */
+ value_len /* value */
+ 1); /* string terminator */
/* Save a bit of time, by using the fact we already have the
lengths, avoiding strcat */
strcpy(envstring, name);
strcpy(envstring + name_len, "=");
strcpy(envstring + name_len + 1, value);
Parrot_str_free_cstring(name);
Parrot_str_free_cstring(value);
if (_putenv(envstring) == 0) {
/* success */
mem_sys_free(envstring);
}
else {
mem_sys_free(envstring);
Parrot_x_force_error_exit(interp, 1,
"Unable to set environment variable %s=%s",
name, value);
}
}
}
}
void
Parrot_file_unlink(PARROT_INTERP, ARGIN(STRING *path))
{
char *c_str = Parrot_str_to_encoded_cstring(interp, path,
Parrot_utf16_encoding_ptr);
BOOL result = DeleteFileW((LPWSTR)c_str);
Parrot_str_free_cstring(c_str);
if (!result)
THROW("unlink");
}
void
Parrot_file_rmdir(PARROT_INTERP, ARGIN(STRING *path))
{
char *c_str = Parrot_str_to_encoded_cstring(interp, path,
Parrot_utf16_encoding_ptr);
BOOL result = RemoveDirectoryW((LPWSTR)c_str);
Parrot_str_free_cstring(c_str);
if (!result)
THROW("rmdir");
}
void
Parrot_file_mkdir(PARROT_INTERP, ARGIN(STRING *path), INTVAL mode)
{
char *c_str = Parrot_str_to_encoded_cstring(interp, path,
Parrot_utf16_encoding_ptr);
BOOL result = CreateDirectoryW((LPWSTR)c_str, NULL);
Parrot_str_free_cstring(c_str);
if (!result)
THROW("mkdir");
}
INTVAL
Parrot_stat_info_intval(PARROT_INTERP, STRING *file, INTVAL thing)
{
struct stat statbuf;
/* Get the name of the file as something we can use */
char * const filename = Parrot_str_to_cstring(interp, file);
/* Everything needs the result of stat, so just go do it */
const int status = stat(filename, &statbuf);
Parrot_str_free_cstring(filename);
return stat_common(interp, &statbuf, thing, status);
}
/* This is called to do any cleanup of resources when an object gets
* embedded inside another one. Never called on a top-level object. */
static void gc_cleanup(PARROT_INTERP, STable *st, void *data) {
NativeCallBody *body = (NativeCallBody *)data;
UNUSED(interp);
UNUSED(st);
if (body->lib_name)
Parrot_str_free_cstring(body->lib_name);
if (body->lib_handle)
dlFreeLibrary(body->lib_handle);
if (body->arg_types)
mem_sys_free(body->arg_types);
if (body->arg_info)
mem_sys_free(body->arg_info);
}
PARROT_WARN_UNUSED_RESULT
INTVAL
Parrot_io_internal_getprotobyname(PARROT_INTERP, ARGIN(STRING *name))
{
char * const s = Parrot_str_to_cstring(interp, name);
struct protoent * const protoent = getprotobyname(s);
Parrot_str_free_cstring(s);
if (protoent)
return protoent->p_proto;
else
return -1;
}
INTVAL
Parrot_Run_OS_Command(PARROT_INTERP, STRING *command)
{
DWORD status = 0;
STARTUPINFO si;
PROCESS_INFORMATION pi;
char* const cmd = (char *)mem_sys_allocate(command->strlen + 4);
char* const shell = Parrot_getenv(interp, Parrot_str_new(interp, "ComSpec", strlen("ComSpec")));
char* const cmdin = Parrot_str_to_cstring(interp, command);
strcpy(cmd, "/c ");
strcat(cmd, cmdin);
Parrot_str_free_cstring(cmdin);
memset(&si, 0, sizeof (si));
si.cb = sizeof (si);
memset(&pi, 0, sizeof (pi));
/* Start the child process. */
if (!CreateProcess(shell, cmd, NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi))
Parrot_ex_throw_from_c_args(interp, NULL, EXCEPTION_NOSPAWN,
"Can't spawn child process");
WaitForSingleObject(pi.hProcess, INFINITE);
if (!GetExitCodeProcess(pi.hProcess, &status)) {
Parrot_warn(interp, PARROT_WARNINGS_PLATFORM_FLAG,
"Process completed: Failed to get exit code.");
}
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
Parrot_str_free_cstring(shell);
mem_sys_free(cmd);
/* Return exit code left shifted by 8 for POSIX emulation. */
return status << 8;
}
PARROT_WARN_UNUSED_RESULT
PARROT_CANNOT_RETURN_NULL
PMC *
Parrot_io_internal_getaddrinfo(PARROT_INTERP, ARGIN(STRING *addr), INTVAL port,
INTVAL protocol, INTVAL fam, INTVAL passive)
{
#ifdef PARROT_HAS_IPV6
PMC *array;
struct addrinfo hints;
struct addrinfo *ai, *walk;
/* We need to pass the port as a string (because you could also use a
* service specification from /etc/services). The highest port is 65535,
* so we need 5 characters + trailing null-byte. */
char portstr[6];
int ret;
/* convert Parrot's family to system family */
if (fam < 0
|| fam >= PIO_PF_MAX
|| (fam = pio_pf[fam]) < 0)
Parrot_ex_throw_from_c_args(interp, NULL, EXCEPTION_PIO_ERROR,
"unsupported protocol family: %ld", fam);
memset(&hints, 0, sizeof (struct addrinfo));
if (passive)
hints.ai_flags = AI_PASSIVE;
hints.ai_family = fam;
hints.ai_protocol = protocol;
snprintf(portstr, sizeof (portstr), "%ld", port);
{
/* Limited scope for the C string to prevent mistakes */
char *s = STRING_IS_NULL(addr)
? (char *) NULL
: Parrot_str_to_cstring(interp, addr);
ret = getaddrinfo(s, portstr, &hints, &ai);
Parrot_str_free_cstring(s);
}
if (ret != 0)
Parrot_ex_throw_from_c_args(interp, NULL, EXCEPTION_PIO_ERROR,
"getaddrinfo failed: %Ss: %Ss", addr,
Parrot_platform_strerror(interp, PIO_SOCK_ERRNO));
array = Parrot_pmc_new(interp, enum_class_ResizablePMCArray);
for (walk = ai; walk; walk = walk->ai_next) {
PMC *sockaddr = Parrot_pmc_new(interp, enum_class_Sockaddr);
Parrot_Sockaddr_attributes *sa_attrs = PARROT_SOCKADDR(sockaddr);
sa_attrs->family = walk->ai_family;
sa_attrs->type = walk->ai_socktype;
sa_attrs->protocol = walk->ai_protocol;
sa_attrs->len = walk->ai_addrlen;
sa_attrs->pointer = Parrot_gc_allocate_memory_chunk(interp,
walk->ai_addrlen);
memcpy(sa_attrs->pointer, walk->ai_addr, walk->ai_addrlen);
VTABLE_push_pmc(interp, array, sockaddr);
}
freeaddrinfo(ai);
return array;
#else /* PARROT_HAS_IPV6 */
const char *host;
char *cstring;
int success;
PMC *sockaddr;
PMC *array;
const size_t addr_len = sizeof (struct sockaddr_in);
struct sockaddr_in *sa;
Parrot_Sockaddr_attributes *sa_attrs;
sa = (struct sockaddr_in *)Parrot_gc_allocate_memory_chunk(interp,
addr_len);
sockaddr = Parrot_pmc_new(interp, enum_class_Sockaddr);
sa_attrs = PARROT_SOCKADDR(sockaddr);
sa_attrs->family = PF_INET;
sa_attrs->type = 0;
sa_attrs->protocol = 0;
sa_attrs->len = addr_len;
sa_attrs->pointer = sa;
if (STRING_IS_NULL(addr)) {
cstring = NULL;
host = "127.0.0.1";
}
else {
cstring = Parrot_str_to_cstring(interp, addr);
host = cstring;
}
# ifdef _WIN32
sa->sin_addr.S_un.S_addr = inet_addr(host);
success = sa->sin_addr.S_un.S_addr != -1;
# else
# ifdef PARROT_DEF_INET_ATON
success = inet_aton(host, &sa->sin_addr) != 0;
# else
/* positive retval is success */
success = inet_pton(PF_INET, host, &sa->sin_addr) > 0;
# endif
# endif
if (!success) {
/* Maybe it is a hostname, try to lookup */
/* XXX Check PIO option before doing a name lookup,
* it may have been toggled off.
*/
const struct hostent * const he = gethostbyname(host);
if (!he) {
if (cstring)
Parrot_str_free_cstring(cstring);
Parrot_ex_throw_from_c_args(interp, NULL, EXCEPTION_PIO_ERROR,
"getaddrinfo failed: %s", host);
}
memcpy((char*)&sa->sin_addr, he->h_addr, sizeof (sa->sin_addr));
}
if (cstring)
Parrot_str_free_cstring(cstring);
sa->sin_family = PF_INET;
sa->sin_port = htons(port);
array = Parrot_pmc_new(interp, enum_class_ResizablePMCArray);
VTABLE_push_pmc(interp, array, sockaddr);
return array;
#endif /* PARROT_HAS_IPV6 */
}
PARROT_EXPORT
PARROT_CANNOT_RETURN_NULL
PARROT_WARN_UNUSED_RESULT
PMC*
Parrot_make_cb(PARROT_INTERP, ARGMOD(PMC* sub), ARGIN(PMC* user_data),
ARGIN(STRING *cb_signature))
{
ASSERT_ARGS(Parrot_make_cb)
PMC *cb, *cb_sig;
int type = 0;
STRING *sc;
char * const signature = Parrot_str_to_cstring(interp, cb_signature);
/*
* we stuff all the information into the user_data PMC and pass that
* on to the external sub
*/
PMC * const interp_pmc = VTABLE_get_pmc_keyed_int(interp, interp->iglobals,
(INTVAL) IGLOBALS_INTERPRETER);
/* be sure __LINE__ is consistent */
sc = CONST_STRING(interp, "_interpreter");
VTABLE_setprop(interp, user_data, sc, interp_pmc);
sc = CONST_STRING(interp, "_sub");
VTABLE_setprop(interp, user_data, sc, sub);
/* only ASCII signatures are supported */
if (strlen(signature) == 3) {
/* Callback return type ignored */
if (signature[1] == 'U') {
type = 'D';
}
else {
if (signature[2] == 'U') {
type = 'C';
}
}
}
Parrot_str_free_cstring(signature);
if (type != 'C' && type != 'D')
Parrot_ex_throw_from_c_args(interp, NULL, 1,
"unhandled signature '%Ss' in make_cb", cb_signature);
cb_sig = Parrot_pmc_new(interp, enum_class_String);
VTABLE_set_string_native(interp, cb_sig, cb_signature);
sc = CONST_STRING(interp, "_signature");
VTABLE_setprop(interp, user_data, sc, cb_sig);
/*
* We are going to be passing the user_data PMC to external code, but
* it may go out of scope until the callback is called -- we don't know
* for certain as we don't know when the callback will be called.
* Therefore, to prevent the PMC from being destroyed by a GC sweep,
* we need to anchor it.
*
*/
Parrot_pmc_gc_register(interp, user_data);
/*
* Finally, the external lib awaits a function pointer.
* Create a PMC that points to Parrot_callback_C (or _D);
* it can be passed on with signature 'p'.
*/
cb = Parrot_pmc_new(interp, enum_class_UnManagedStruct);
/*
* Currently, we handle only 2 types:
* _C ... user_data is 2nd parameter
* _D ... user_data is 1st parameter
*/
if (type == 'C')
VTABLE_set_pointer(interp, cb, F2DPTR(Parrot_callback_C));
else
VTABLE_set_pointer(interp, cb, F2DPTR(Parrot_callback_D));
Parrot_pmc_gc_register(interp, cb);
return cb;
}
PARROT_EXPORT
void
Parrot_run_callback(PARROT_INTERP,
ARGMOD(PMC* user_data), ARGIN(char* external_data))
{
ASSERT_ARGS(Parrot_run_callback)
PMC *signature;
PMC *sub;
STRING *sig_str;
char *p;
char ch;
char *sig_cstr;
char pasm_sig[5];
INTVAL i_param;
PMC *p_param;
void *param = NULL; /* avoid -Ox warning */
STRING *sc;
sc = CONST_STRING(interp, "_sub");
sub = VTABLE_getprop(interp, user_data, sc);
sc = CONST_STRING(interp, "_signature");
signature = VTABLE_getprop(interp, user_data, sc);
sig_str = VTABLE_get_string(interp, signature);
sig_cstr = Parrot_str_to_cstring(interp, sig_str);
p = sig_cstr;
++p; /* Skip return type */
pasm_sig[0] = 'P';
if (*p == 'U') /* user_data Z in pdd16 */
++p; /* p is now type of external data */
switch (*p) {
case 'v':
pasm_sig[1] = 'v';
break;
case 'l':
i_param = (INTVAL)(long) external_data;
goto case_I;
case 'i':
i_param = (INTVAL)(int)(long) external_data;
goto case_I;
case 's':
i_param = (INTVAL)(short)(long) external_data;
goto case_I;
case 'c':
i_param = (INTVAL)(char)(long)external_data;
case_I:
pasm_sig[1] = 'I';
param = (void*) i_param;
break;
case 'p':
/* created a UnManagedStruct */
p_param = Parrot_pmc_new(interp, enum_class_UnManagedStruct);
VTABLE_set_pointer(interp, p_param, external_data);
pasm_sig[1] = 'P';
param = (void*) p_param;
break;
case 't':
pasm_sig[1] = 'S';
param = Parrot_str_new(interp, external_data, 0);
break;
default:
ch = *p;
Parrot_str_free_cstring(sig_cstr);
Parrot_ex_throw_from_c_args(interp, NULL, 1,
"unhandled signature char '%c' in run_cb", ch);
}
Parrot_str_free_cstring(sig_cstr);
pasm_sig[2] = '-';
pasm_sig[3] = '>'; /* no return value supported yet */
pasm_sig[4] = '\0';
Parrot_ext_call(interp, sub, pasm_sig, user_data, param);
}
