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Add perl_signal_args_to_c() to convert signal parameters from Perl to C values,

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and make Irssi::signal_emit/Irssi::signal_continue use it. Also make
perl_call_signal() turn NULLs into undef, so we can recover them in
perl_signal_args_to_c(), which is its inverse operation.
Patch by Lukas Mai.


git-svn-id: file:///var/www/svn.irssi.org/SVN/irssi/trunk@4953 dbcabf3a-b0e7-0310-adc4-f8d773084564
This commit is contained in:
Emanuele Giaquinta 2008-12-08 16:06:11 +00:00 committed by exg
parent 0cea011470
commit 8c64738cdc
3 changed files with 188 additions and 43 deletions
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59
src/perl/common/Core.xs
View File

@ -65,6 +65,15 @@ static void add_tuple(gpointer key_, gpointer value_, gpointer user_data)
hv_store(hash, key, strlen(key), new_pv(value), 0);
}
static void wrap_signal_emit(void *signal, void **p) {
signal_emit(signal, 6, p[0], p[1], p[2], p[3], p[4], p[5]);
}
static void wrap_signal_continue(void *dummy, void **p) {
(void)dummy;
signal_continue(6, p[0], p[1], p[2], p[3], p[4], p[5]);
}
MODULE = Irssi::Core PACKAGE = Irssi
PROTOTYPES: ENABLE
@ -72,44 +81,34 @@ void
signal_emit(signal, ...)
char *signal
CODE:
void *p[SIGNAL_MAX_ARGUMENTS];
int n;
int signal_id;
SV *args[SIGNAL_MAX_ARGUMENTS];
int n, used;
memset(p, 0, sizeof(p));
for (n = 1; n < items && n < SIGNAL_MAX_ARGUMENTS+1; n++) {
if (SvPOKp(ST(n)))
p[n-1] = SvPV(ST(n), PL_na);
else if (irssi_is_ref_object(ST(n)))
p[n-1] = irssi_ref_object(ST(n));
else if (SvROK(ST(n)))
p[n-1] = (void *) SvIV((SV*)SvRV(ST(n)));
else if (SvIOK(ST(n)))
p[n-1] = (void *)SvIV(ST(n));
else
p[n-1] = NULL;
signal_id = signal_get_uniq_id(signal);
used = items - 1;
if (used > SIGNAL_MAX_ARGUMENTS) {
used = SIGNAL_MAX_ARGUMENTS;
}
signal_emit(signal, items-1, p[0], p[1], p[2], p[3], p[4], p[5]);
for (n = 0; n < used; ++n) {
args[n] = ST(n + 1);
}
perl_signal_args_to_c(wrap_signal_emit, signal, signal_id, args, used);
void
signal_continue(...)
CODE:
void *p[SIGNAL_MAX_ARGUMENTS];
int n;
SV *args[SIGNAL_MAX_ARGUMENTS];
int n, used;
memset(p, 0, sizeof(p));
for (n = 0; n < items && n < SIGNAL_MAX_ARGUMENTS; n++) {
if (SvPOKp(ST(n)))
p[n] = SvPV(ST(n), PL_na);
else if (irssi_is_ref_object(ST(n)))
p[n] = irssi_ref_object(ST(n));
else if (SvROK(ST(n)))
p[n] = (void *) SvIV((SV*)SvRV(ST(n)));
else if (SvIOK(ST(n)))
p[n] = (void *) SvIV(ST(n));
else
p[n] = NULL;
used = items;
if (used > SIGNAL_MAX_ARGUMENTS) {
used = SIGNAL_MAX_ARGUMENTS;
}
signal_continue(items, p[0], p[1], p[2], p[3], p[4], p[5]);
for (n = 0; n < used; ++n) {
args[n] = ST(n);
}
perl_signal_args_to_c(wrap_signal_continue, NULL, signal_get_emitted_id(), args, used);
void
signal_add(...)

169
src/perl/perl-signals.c
View File

@ -70,6 +70,150 @@ static PERL_SIGNAL_ARGS_REC *perl_signal_args_find(int signal_id)
return NULL;
}
void perl_signal_args_to_c(
void (*callback)(void *, void **), void *cb_arg,
int signal_id, SV **args, size_t n_args)
{
union {
int v_int;
unsigned long v_ulong;
GSList *v_gslist;
GList *v_glist;
} saved_args[SIGNAL_MAX_ARGUMENTS];
void *p[SIGNAL_MAX_ARGUMENTS];
PERL_SIGNAL_ARGS_REC *rec;
size_t n;
if (!(rec = perl_signal_args_find(signal_id))) {
const char *name = signal_get_id_str(signal_id);
if (!name) {
croak("%d is not a known signal id", signal_id);
}
croak("\"%s\" is not a registered signal", name);
}
for (n = 0; n < SIGNAL_MAX_ARGUMENTS && n < n_args && rec->args[n] != NULL; ++n) {
void *c_arg;
SV *arg = args[n];
if (!SvOK(arg)) {
c_arg = NULL;
} else if (strcmp(rec->args[n], "string") == 0) {
c_arg = SvPV_nolen(arg);
} else if (strcmp(rec->args[n], "int") == 0) {
c_arg = (void *)SvIV(arg);
} else if (strcmp(rec->args[n], "ulongptr") == 0) {
saved_args[n].v_ulong = SvUV(arg);
c_arg = &saved_args[n].v_ulong;
} else if (strcmp(rec->args[n], "intptr") == 0) {
saved_args[n].v_int = SvIV(SvRV(arg));
c_arg = &saved_args[n].v_int;
} else if (strncmp(rec->args[n], "glistptr_", 9) == 0) {
GList *gl;
int is_str;
AV *av;
SV *t;
int count;
t = SvRV(arg);
if (SvTYPE(t) != SVt_PVAV) {
croak("Not an ARRAY reference");
}
av = (AV *)t;
is_str = strcmp(rec->args[n]+9, "char*") == 0;
gl = NULL;
count = av_len(av) + 1;
while (count-- > 0) {
SV **px = av_fetch(av, count, 0);
SV *x = px ? *px : NULL;
gl = g_list_prepend(
gl,
x == NULL ? NULL :
is_str ? g_strdup(SvPV_nolen(x)) :
irssi_ref_object(x)
);
}
saved_args[n].v_glist = gl;
c_arg = &saved_args[n].v_glist;
} else if (strncmp(rec->args[n], "gslist_", 7) == 0) {
GSList *gsl;
AV *av;
SV *t;
int count;
t = SvRV(arg);
if (SvTYPE(t) != SVt_PVAV) {
croak("Not an ARRAY reference");
}
av = (AV *)t;
gsl = NULL;
count = av_len(av) + 1;
while (count-- > 0) {
SV **x = av_fetch(av, count, 0);
gsl = g_slist_prepend(
gsl,
x == NULL ? NULL :
irssi_ref_object(*x)
);
}
c_arg = saved_args[n].v_gslist = gsl;
} else {
c_arg = irssi_ref_object(arg);
}
p[n] = c_arg;
}
for (; n < SIGNAL_MAX_ARGUMENTS; ++n) {
p[n] = NULL;
}
callback(cb_arg, p);
for (n = 0; n < SIGNAL_MAX_ARGUMENTS && n < n_args && rec->args[n] != NULL; ++n) {
SV *arg = args[n];
if (!SvOK(arg)) {
continue;
}
if (strcmp(rec->args[n], "intptr") == 0) {
SV *t = SvRV(arg);
SvIOK_only(t);
SvIV_set(t, saved_args[n].v_int);
} else if (strncmp(rec->args[n], "gslist_", 7) == 0) {
g_slist_free(saved_args[n].v_gslist);
} else if (strncmp(rec->args[n], "glistptr_", 9) == 0) {
int is_iobject, is_str;
AV *av;
GList *gl, *tmp;
is_iobject = strcmp(rec->args[n]+9, "iobject") == 0;
is_str = strcmp(rec->args[n]+9, "char*") == 0;
av = (AV *)SvRV(arg);
av_clear(av);
gl = saved_args[n].v_glist;
for (tmp = gl; tmp != NULL; tmp = tmp->next) {
av_push(av,
is_iobject ? iobject_bless((SERVER_REC *)tmp->data) :
is_str ? new_pv(tmp->data) :
irssi_bless_plain(rec->args[n]+9, tmp->data)
);
}
if (is_str) {
g_list_foreach(gl, (GFunc)g_free, NULL);
}
g_list_free(gl);
}
}
}
static void perl_call_signal(PERL_SCRIPT_REC *script, SV *func,
int signal_id, gconstpointer *args)
{
@ -95,15 +239,7 @@ static void perl_call_signal(PERL_SCRIPT_REC *script, SV *func,
rec != NULL && rec->args[n] != NULL; n++) {
arg = (void *) args[n];
if (strcmp(rec->args[n], "string") == 0)
perlarg = new_pv(arg);
else if (strcmp(rec->args[n], "int") == 0)
perlarg = newSViv((IV)arg);
else if (strcmp(rec->args[n], "ulongptr") == 0)
perlarg = newSViv(*(unsigned long *) arg);
else if (strcmp(rec->args[n], "intptr") == 0)
saved_args[n] = perlarg = newRV_noinc(newSViv(*(int *) arg));
else if (strncmp(rec->args[n], "glistptr_", 9) == 0) {
if (strncmp(rec->args[n], "glistptr_", 9) == 0) {
/* pointer to linked list - push as AV */
GList *tmp, **ptr;
int is_iobject, is_str;
@ -121,7 +257,17 @@ static void perl_call_signal(PERL_SCRIPT_REC *script, SV *func,
}
saved_args[n] = perlarg = newRV_noinc((SV *) av);
} else if (strncmp(rec->args[n], "gslist_", 7) == 0) {
} else if (strcmp(rec->args[n], "int") == 0)
perlarg = newSViv((IV)arg);
else if (arg == NULL)
perlarg = &PL_sv_undef;
else if (strcmp(rec->args[n], "string") == 0)
perlarg = new_pv(arg);
else if (strcmp(rec->args[n], "ulongptr") == 0)
perlarg = newSViv(*(unsigned long *) arg);
else if (strcmp(rec->args[n], "intptr") == 0)
saved_args[n] = perlarg = newRV_noinc(newSViv(*(int *) arg));
else if (strncmp(rec->args[n], "gslist_", 7) == 0) {
/* linked list - push as AV */
GSList *tmp;
int is_iobject;
@ -135,9 +281,6 @@ static void perl_call_signal(PERL_SCRIPT_REC *script, SV *func,
}
perlarg = newRV_noinc((SV *) av);
} else if (arg == NULL) {
/* don't bless NULL arguments */
perlarg = newSViv(0);
} else if (strcmp(rec->args[n], "iobject") == 0) {
/* "irssi object" - any struct that has
"int type; int chat_type" as it's first

3
src/perl/perl-signals.h
View File

@ -1,6 +1,9 @@
#ifndef __PERL_SIGNALS_H
#define __PERL_SIGNALS_H
void perl_signal_args_to_c(void (*callback)(void *, void **), void *cb_arg,
int signal_id, SV **args, size_t n_args);
void perl_signal_add_full(const char *signal, SV *func, int priority);
void perl_signal_remove(const char *signal, SV *func);