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#define PERL_NO_GET_CONTEXT
#include "module.h"
#include <irssi/src/core/expandos.h>
typedef struct {
PERL_SCRIPT_REC *script;
SV *func;
} PerlExpando;
static GHashTable *perl_expando_defs;
static char *sig_perl_expando(SERVER_REC *server, void *item, int *free_ret);
static int check_expando_destroy(char *key, PerlExpando *rec,
PERL_SCRIPT_REC *script)
{
if (rec->script == script) {
expando_destroy(key, sig_perl_expando);
SvREFCNT_dec(rec->func);
g_free(key);
g_free(rec);
return TRUE;
}
return FALSE;
}
static void script_unregister_expandos(PERL_SCRIPT_REC *script)
{
g_hash_table_foreach_remove(perl_expando_defs,
(GHRFunc) check_expando_destroy, script);
}
void perl_expando_init(void)
{
perl_expando_defs = g_hash_table_new((GHashFunc) g_str_hash,
(GCompareFunc) g_str_equal);
signal_add("script destroyed", (SIGNAL_FUNC) script_unregister_expandos);
}
static void expando_def_destroy(char *key, PerlExpando *rec)
{
SvREFCNT_dec(rec->func);
g_free(key);
g_free(rec);
}
void perl_expando_deinit(void)
{
signal_remove("script destroyed", (SIGNAL_FUNC) script_unregister_expandos);
g_hash_table_foreach(perl_expando_defs,
(GHFunc) expando_def_destroy, NULL);
g_hash_table_destroy(perl_expando_defs);
}
static char *perl_expando_event(PerlExpando *rec, SERVER_REC *server,
WI_ITEM_REC *item, int *free_ret)
{
dSP;
char *ret;
int retcount;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(iobject_bless(server)));
XPUSHs(sv_2mortal(iobject_bless(item)));
PUTBACK;
retcount = perl_call_sv(rec->func, G_EVAL|G_SCALAR);
SPAGAIN;
ret = NULL;
if (SvTRUE(ERRSV)) {
char *error;
PERL_SCRIPT_REC *script = rec->script;
(void) POPs;
/* call putback before emitting script error signal as that
* could manipulate the perl stack. */
PUTBACK;
/* make sure we don't get back here */
if (script != NULL)
script_unregister_expandos(script);
/* rec has been freed now */
error = g_strdup(SvPV_nolen(ERRSV));
signal_emit("script error", 2, script, error);
g_free(error);
} else if (retcount > 0) {
ret = g_strdup(POPp);
*free_ret = TRUE;
PUTBACK;
}
FREETMPS;
LEAVE;
return ret;
}
static char *sig_perl_expando(SERVER_REC *server, void *item, int *free_ret)
{
PerlExpando *rec;
rec = g_hash_table_lookup(perl_expando_defs, current_expando);
if (rec != NULL)
return perl_expando_event(rec, server, item, free_ret);
return NULL;
}
static void expando_signals_add_hash(const char *key, SV *signals)
{
HV *hv;
HE *he;
I32 len;
const char *argstr;
ExpandoArg arg;
if (!is_hvref(signals)) {
croak("Usage: Irssi::expando_create(key, func, hash)");
return;
}
hv = hvref(signals);
hv_iterinit(hv);
while ((he = hv_iternext(hv)) != NULL) {
SV *argsv = HeVAL(he);
argstr = SvPV_nolen(argsv);
if (g_ascii_strcasecmp(argstr, "none") == 0)
arg = EXPANDO_ARG_NONE;
else if (g_ascii_strcasecmp(argstr, "server") == 0)
arg = EXPANDO_ARG_SERVER;
else if (g_ascii_strcasecmp(argstr, "window") == 0)
arg = EXPANDO_ARG_WINDOW;
else if (g_ascii_strcasecmp(argstr, "windowitem") == 0)
arg = EXPANDO_ARG_WINDOW_ITEM;
else if (g_ascii_strcasecmp(argstr, "never") == 0)
arg = EXPANDO_NEVER;
else {
croak("Unknown signal type: %s", argstr);
break;
}
expando_add_signal(key, hv_iterkey(he, &len), arg);
}
}
MODULE = Irssi::Expando PACKAGE = Irssi
PROTOTYPES: ENABLE
void
expando_create(key, func, signals)
char *key
SV *func
SV *signals
PREINIT:
PerlExpando *rec;
CODE:
rec = g_new0(PerlExpando, 1);
rec->script = perl_script_find_package(perl_get_package());
rec->func = perl_func_sv_inc(func, perl_get_package());
expando_create(key, sig_perl_expando, NULL);
g_hash_table_insert(perl_expando_defs, g_strdup(key), rec);
expando_signals_add_hash(key, signals);
void
expando_destroy(name)
char *name
PREINIT:
gpointer key, value;
CODE:
if (g_hash_table_lookup_extended(perl_expando_defs, name, &key, &value)) {
g_hash_table_remove(perl_expando_defs, name);
g_free(key);
SvREFCNT_dec((SV *) value);
}
expando_destroy(name, sig_perl_expando);
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