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efl/src/lib/edje/edje_signal.c

579 lines
18 KiB
C
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#include "edje_private.h"
#include <assert.h>
static Eina_Hash *signal_match = NULL;
static unsigned int
_edje_signal_match_key_length(const void *key EINA_UNUSED)
{
return sizeof(Edje_Signal_Callback_Matches);
}
static int
_edje_signal_match_key_cmp(const void *key1, int key1_length EINA_UNUSED, const void *key2, int key2_length EINA_UNUSED)
{
const Edje_Signal_Callback_Matches *a = key1;
const Edje_Signal_Callback_Matches *b = key2;
unsigned int i;
#define NOTEQUAL(x) (a->x != b->x)
#define LESSMORE(x) ((a->x > b->x) ? 1 : -1)
if (NOTEQUAL(matches_count)) return LESSMORE(matches_count);
for (i = 0; i < a->matches_count; ++i)
{
if (NOTEQUAL(matches[i].signal)) return LESSMORE(matches[i].signal);
if (NOTEQUAL(matches[i].source)) return LESSMORE(matches[i].source);
// Callback be it legacy or eo, have the same pointer size and so can be just compared like that
if (NOTEQUAL(matches[i].legacy)) return LESSMORE(matches[i].legacy);
if (a->free_cb && b->free_cb)
{
if (NOTEQUAL(free_cb[i])) return LESSMORE(free_cb[i]);
}
else if (a->free_cb || b->free_cb) return LESSMORE(free_cb);
}
return 0;
}
static int
_edje_signal_match_key_hash(const void *key, int key_length EINA_UNUSED)
{
const Edje_Signal_Callback_Matches *a = key;
unsigned int hash, i;
hash = eina_hash_int32(&a->matches_count, sizeof(int));
for (i = 0; i < a->matches_count; ++i)
{
#ifdef EFL64
# define HASH(x) eina_hash_int64((const unsigned long long int *)&(a->x), sizeof(a->x))
#else
# define HASH(x) eina_hash_int32((const unsigned int *)&(a->x), sizeof(a->x))
#endif
hash ^= HASH(matches[i].signal);
hash ^= HASH(matches[i].source);
// Callback be it legacy or eo, have the same pointer size and so using legacy for hash is enough
hash ^= HASH(matches[i].legacy);
if (a->free_cb) hash ^= HASH(free_cb[i]);
}
return hash;
}
static Edje_Signal_Callback_Matches *
_edje_signal_callback_matches_dup(const Edje_Signal_Callback_Matches *src)
{
Edje_Signal_Callback_Matches *result;
unsigned int i;
result = calloc(1, sizeof (Edje_Signal_Callback_Matches));
if (!result) return NULL;
result->matches = malloc
(sizeof(Edje_Signal_Callback_Match) * src->matches_count);
if (!result->matches) goto err;
result->matches_count = src->matches_count;
EINA_REFCOUNT_REF(result);
if (src->free_cb)
{
result->free_cb = malloc
(sizeof(Eina_Free_Cb) * src->matches_count);
if (!result->free_cb) goto err;
memcpy(result->free_cb, src->free_cb,
sizeof(Eina_Free_Cb) * src->matches_count);
}
for (i = 0; i < src->matches_count; i++)
{
result->matches[i].signal = eina_stringshare_ref(src->matches[i].signal);
result->matches[i].source = eina_stringshare_ref(src->matches[i].source);
result->matches[i].legacy = src->matches[i].legacy;
}
return result;
err:
ERR("Allocation error in callback matches dup");
free(result->free_cb);
free(result->matches);
free(result);
return NULL;
}
void
_edje_callbacks_patterns_clean(Edje_Signal_Callback_Group *gp)
{
Edje_Signal_Callback_Matches *tmp = (Edje_Signal_Callback_Matches *)gp->matches;
if (!tmp) return;
_edje_signal_callback_patterns_unref(tmp->patterns);
tmp->patterns = NULL;
}
static void
_edje_callbacks_patterns_init(Edje_Signal_Callback_Group *gp)
{
Edje_Signals_Sources_Patterns *ssp;
Edje_Signal_Callback_Matches *tmp = (Edje_Signal_Callback_Matches *)gp->matches;
if (!tmp) return;
if (tmp->patterns) return;
tmp->patterns = calloc(1, sizeof(Edje_Signals_Sources_Patterns));
if (!tmp->patterns) goto err;
ssp = tmp->patterns;
edje_match_callback_hash_build(tmp->matches,
tmp->matches_count,
&ssp->exact_match,
&ssp->u.callbacks.globing);
ssp->signals_patterns = edje_match_callback_signal_init
(&ssp->u.callbacks.globing, tmp->matches);
ssp->sources_patterns = edje_match_callback_source_init
(&ssp->u.callbacks.globing, tmp->matches);
EINA_REFCOUNT_REF(ssp);
return;
err:
ERR("Alloc error on patterns init");
}
void
edje_signal_init(void)
{
signal_match = eina_hash_new(_edje_signal_match_key_length,
_edje_signal_match_key_cmp,
_edje_signal_match_key_hash,
NULL,
3);
}
void
edje_signal_shutdown(void)
{
// FIXME: iterate and destroy leftover signal matcher
eina_hash_free(signal_match);
}
static void
_edje_signal_callback_unset(Edje_Signal_Callback_Group *gp, int idx)
{
Edje_Signal_Callback_Matches *tmp = (Edje_Signal_Callback_Matches *)gp->matches;
Edje_Signal_Callback_Match *m;
if (!tmp) return;
if (!tmp->matches) return;
m = tmp->matches + idx;
eina_stringshare_del(m->signal);
m->signal = NULL;
eina_stringshare_del(m->source);
m->source = NULL;
}
static void
_edje_signal_callback_set(Edje_Signal_Callback_Group *gp, int idx,
const char *sig, const char *src,
Edje_Signal_Cb func_legacy,
Efl_Signal_Cb func_eo, Eina_Free_Cb func_free_cb,
void *data, Edje_Signal_Callback_Flags flags)
{
Edje_Signal_Callback_Matches *tmp = (Edje_Signal_Callback_Matches *)gp->matches;
Edje_Signal_Callback_Match *m;
if (!tmp) return;
if (!tmp->matches) return;
m = tmp->matches + idx;
m->signal = eina_stringshare_ref(sig);
m->source = eina_stringshare_ref(src);
if (func_legacy) m->legacy = func_legacy;
else m->eo = func_eo;
if (func_free_cb)
{
if (!tmp->free_cb)
tmp->free_cb = calloc(tmp->matches_count, sizeof(Eina_Free_Cb));
if (!tmp->free_cb) goto err;
tmp->free_cb[idx] = func_free_cb;
}
gp->custom_data[idx] = data;
gp->flags[idx] = flags;
return;
err:
ERR("Alloc err in callback set");
}
static Edje_Signal_Callback_Group *
_edje_signal_callback_grow(Edje_Signal_Callback_Group *gp)
{
Edje_Signal_Callback_Matches *tmp;
Edje_Signal_Callback_Match *m;
Eina_Free_Cb *f;
void **cd;
Edje_Signal_Callback_Flags *fl;
tmp = (Edje_Signal_Callback_Matches *)gp->matches;
if (!tmp) return NULL;
tmp->matches_count++;
// what about data in the data build by edje_match_callback_hash_build
// that this may kill by changing the tmp->matches ptr. this is handled
// in _edje_signal_callback_push() by re-initting patterns
m = realloc(tmp->matches, sizeof(Edje_Signal_Callback_Match) * tmp->matches_count);
if (!m) goto err;
tmp->matches = m;
memset(&(tmp->matches[tmp->matches_count - 1]), 0, sizeof(Edje_Signal_Callback_Match));
if (tmp->free_cb)
{
f = realloc(tmp->free_cb, sizeof(Eina_Free_Cb) * tmp->matches_count);
if (!f) goto err;
tmp->free_cb = f;
tmp->free_cb[tmp->matches_count - 1] = NULL;
}
cd = realloc(gp->custom_data, sizeof(void *) * tmp->matches_count);
if (!cd) goto err;
gp->custom_data = cd;
gp->custom_data[tmp->matches_count - 1] = NULL;
fl = realloc(gp->flags, sizeof(Edje_Signal_Callback_Flags) * tmp->matches_count);
if (!fl) goto err;
gp->flags = fl;
memset(&(gp->flags[tmp->matches_count - 1]), 0, sizeof(Edje_Signal_Callback_Flags));
return gp;
err:
ERR("Allocation error in rowing signal callback group");
tmp->matches_count--;
return NULL;
}
Eina_Bool
_edje_signal_callback_push(Edje_Signal_Callback_Group *gp,
const char *sig, const char *src,
Edje_Signal_Cb func_legacy,
Efl_Signal_Cb func_eo, Eina_Free_Cb func_free_cb,
void *data, Eina_Bool propagate)
{
unsigned int i;
Edje_Signal_Callback_Flags flags;
Edje_Signal_Callback_Matches *tmp;
Edje_Signal_Callback_Match *m;
flags.delete_me = EINA_FALSE;
flags.just_added = EINA_TRUE;
flags.propagate = !!propagate;
flags.legacy = !!func_legacy;
// FIXME: properly handle legacy and non legacy case, including free function
tmp = (Edje_Signal_Callback_Matches *)gp->matches;
if (!tmp) return EINA_FALSE;
if (tmp->hashed)
{
if (EINA_REFCOUNT_GET(tmp) == 1)
{
// special case - it's a single ref so make it private
// and move it out of the shared hash to be private
if (!eina_hash_del(signal_match, tmp, tmp))
{
ERR("Can't del from hash!");
}
tmp->hashed = EINA_FALSE;
}
else
{
// already multiple refs to the match - so make a
// private copy of it we can modify
Edje_Signal_Callback_Matches *tmp_dup =
_edje_signal_callback_matches_dup(tmp);
if (!tmp_dup) return EINA_FALSE;
// unreff tmp but it's > 1 ref so it'll be safe but we're not
// using it anymore here so indicate that with the unref
EINA_REFCOUNT_UNREF(tmp)
{
(void)0; // do nothing because if refcount == 1 handle above.
}
gp->matches = tmp = tmp_dup;
}
}
// tmp will not be hashed at this point so no need to del+add from hash
// search an empty spot now
for (i = 0; i < tmp->matches_count; i++)
{
if (gp->flags[i].delete_me)
{
_edje_signal_callback_unset(gp, i);
_edje_signal_callback_set(gp, i, sig, src, func_legacy, func_eo, func_free_cb, data, flags);
return EINA_TRUE;
}
}
m = tmp->matches;
if (_edje_signal_callback_grow(gp))
{
// Set propagate and just_added flags
_edje_signal_callback_set(gp, tmp->matches_count - 1,
sig, src, func_legacy, func_eo, func_free_cb, data, flags);
if (m != tmp->matches)
{
_edje_callbacks_patterns_clean(gp);
_edje_callbacks_patterns_init(gp);
}
}
else
{
if (tmp->hashed)
eina_hash_add(signal_match, tmp, tmp);
goto err;
}
return EINA_TRUE;
err:
ERR("Allocation error in pushing callback");
return EINA_TRUE;
}
const Edje_Signal_Callback_Group *
_edje_signal_callback_alloc(void)
{
Edje_Signal_Callback_Group *escg;
Edje_Signal_Callback_Matches *m;
escg = calloc(1, sizeof (Edje_Signal_Callback_Group));
if (!escg) goto err;
m = calloc(1, sizeof (Edje_Signal_Callback_Matches));
if (!m) goto err;
EINA_REFCOUNT_REF(m);
escg->matches = m;
return escg;
err:
ERR("Alloc error in signal callback alloc");
free(escg);
return NULL;
}
void
_edje_signal_callback_matches_unref(Edje_Signal_Callback_Matches *m,
Edje_Signal_Callback_Flags *flags,
void **custom_data)
{
unsigned int i;
if (m->free_cb)
{
for (i = 0; i < m->matches_count; ++i)
{
if (!flags[i].delete_me && m->free_cb[i])
m->free_cb[i](custom_data[i]);
}
}
EINA_REFCOUNT_UNREF(m)
{
if (m->hashed)
{
if (!eina_hash_del(signal_match, m, m))
{
ERR("Can't del from hash!");
}
}
for (i = 0; i < m->matches_count; ++i)
{
eina_stringshare_del(m->matches[i].signal);
eina_stringshare_del(m->matches[i].source);
m->matches[i].signal = NULL;
m->matches[i].source = NULL;
}
_edje_signal_callback_patterns_unref(m->patterns);
free(m->matches);
free(m->free_cb);
m->patterns = NULL;
m->matches = NULL;
m->free_cb = NULL;
m->hashed = EINA_FALSE;
free(m);
}
}
void
_edje_signal_callback_free(const Edje_Signal_Callback_Group *cgp)
{
Edje_Signal_Callback_Group *gp = (Edje_Signal_Callback_Group *)cgp;
if (!gp) return;
_edje_signal_callback_matches_unref
((Edje_Signal_Callback_Matches *)gp->matches, gp->flags, gp->custom_data);
free(gp->flags);
free(gp->custom_data);
gp->matches = NULL;
gp->flags = NULL;
gp->custom_data = NULL;
free(gp);
}
Eina_Bool
_edje_signal_callback_disable(Edje_Signal_Callback_Group *gp,
const char *sig, const char *src,
Edje_Signal_Cb func_legacy,
EflLayoutSignalCb func, Eina_Free_Cb func_free_cb, void *data)
{
unsigned int i;
if (!gp || !gp->matches) return EINA_FALSE;
for (i = 0; i < gp->matches->matches_count; ++i)
{
if ((sig == gp->matches->matches[i].signal) &&
(src == gp->matches->matches[i].source) &&
(!gp->flags[i].delete_me) &&
(((func == gp->matches->matches[i].eo) &&
((!gp->matches->free_cb) || (func_free_cb == gp->matches->free_cb[i])) &&
(gp->custom_data[i] == data) &&
(!gp->flags[i].legacy)) ||
((func_legacy == gp->matches->matches[i].legacy) &&
(gp->custom_data[i] == data) &&
(gp->flags[i].legacy)))
)
{
if (func && func_free_cb) func_free_cb(data);
gp->flags[i].delete_me = EINA_TRUE;
//return gp->custom_data[i];
return EINA_TRUE;
}
}
return EINA_FALSE;
}
static void
_edje_signal_callback_move_last(Edje_Signal_Callback_Group *gp,
unsigned int i)
{
Edje_Signal_Callback_Matches *m;
unsigned int j;
m = (Edje_Signal_Callback_Matches *)gp->matches;
if (!m) return;
if (m->hashed)
{
if (!eina_hash_del(signal_match, m, m))
{
ERR("Can't del from hash!");
}
}
for (j = --m->matches_count; j > i; --j)
{
if (!gp->flags[j].delete_me)
{
_edje_signal_callback_unset(gp, i);
memcpy(&m->matches[i], &m->matches[j], sizeof(Edje_Signal_Callback_Match));
gp->flags[i] = gp->flags[j];
gp->custom_data[i] = gp->custom_data[j];
if (m->hashed)
eina_hash_add(signal_match, m, m);
return;
}
else
{
_edje_signal_callback_unset(gp, j);
m->matches_count--;
}
}
if (m->hashed)
eina_hash_add(signal_match, m, m);
}
const Edje_Signals_Sources_Patterns *
_edje_signal_callback_patterns_ref(Edje_Signal_Callback_Group *gp)
{
const Edje_Signal_Callback_Matches *m;
Edje_Signal_Callback_Matches *tmp;
tmp = (Edje_Signal_Callback_Matches *)gp->matches;
if (!tmp) return NULL;
if (tmp->hashed) goto got_it;
m = eina_hash_find(signal_match, tmp);
if (!m)
{
if (!(tmp->patterns && (EINA_REFCOUNT_GET(tmp->patterns) > 1)))
{
// Let compact it and remove uneeded pattern before building it
// We can do that because the custom data are kept local into the matching code.
unsigned int i;
for (i = 0; i < tmp->matches_count; i++)
{
if (gp->flags[i].delete_me)
_edje_signal_callback_move_last((Edje_Signal_Callback_Group *)gp, i);
}
}
_edje_signal_callback_patterns_unref(tmp->patterns);
tmp->patterns = NULL;
_edje_callbacks_patterns_init((Edje_Signal_Callback_Group *)gp);
m = eina_hash_find(signal_match, tmp);
if (m)
{
WRN("Found exact match in signal matches this would conflict with");
goto got_it;
}
// We should be able to use direct_add, but if I do so valgrind stack explode and
// it bagain to be a pain to debug efl apps. I can't understand what is going on.
// eina_hash_direct_add(signal_match, tmp, tmp);
eina_hash_add(signal_match, tmp, tmp);
tmp->hashed = EINA_TRUE;
}
else
{
if (m == tmp)
{
WRN("Should not happen - gp->match == hash found match");
goto got_it;
}
if (tmp->matches_count != m->matches_count)
{
unsigned int i, smaller, larger;
void **cd;
Edje_Signal_Callback_Flags *fl;
ERR("Match replacement match count don't match");
smaller = tmp->matches_count;
larger = m->matches_count;
if (larger > smaller)
{
cd = realloc(gp->custom_data, sizeof(void *) * larger);
for (i = smaller; i < larger; i++) cd[i] = NULL;
gp->custom_data = cd;
fl = realloc(gp->flags, sizeof(Edje_Signal_Callback_Flags) * larger);
for (i = smaller; i < larger; i++) memset(&(fl[i]), 0, sizeof(Edje_Signal_Callback_Flags));
gp->flags = fl;
}
}
_edje_signal_callback_matches_unref
((Edje_Signal_Callback_Matches *)tmp, gp->flags, gp->custom_data);
((Edje_Signal_Callback_Group *)gp)->matches = m;
tmp = (Edje_Signal_Callback_Matches *)gp->matches;
EINA_REFCOUNT_REF(tmp);
}
got_it:
if (tmp->patterns) EINA_REFCOUNT_REF(tmp->patterns);
return tmp->patterns;
}
void
_edje_signal_callback_patterns_unref(const Edje_Signals_Sources_Patterns *essp)
{
Edje_Signals_Sources_Patterns *ssp = (Edje_Signals_Sources_Patterns *)essp;
if (!ssp) return;
EINA_REFCOUNT_UNREF(ssp)
{
_edje_signals_sources_patterns_clean(ssp);
eina_rbtree_delete(ssp->exact_match,
EINA_RBTREE_FREE_CB(edje_match_signal_source_free),
NULL);
ssp->exact_match = NULL;
eina_inarray_flush(&ssp->u.callbacks.globing);
free(ssp);
}
}
void
_edje_signal_callback_reset(Edje_Signal_Callback_Flags *flags, unsigned int length)
{
unsigned int i;
for (i = 0; i < length; ++i)
flags[i].just_added = EINA_FALSE;
}
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