#include <string.h>
#include <pthread.h>
#include <unistd.h>
+#include <fnmatch.h>
#include <json-c/json.h>
-#include <afb/afb-req-itf.h>
+#include <afb/afb-req-common.h>
#include <afb/afb-event-itf.h>
#include "afb-context.h"
#include "afb-cred.h"
#include "afb-xreq.h"
#include "afb-ditf.h"
+#include "afb-svc.h"
+#include "afb-evt.h"
#include "verbose.h"
/**
void *closure; /**< closure for callbacks */
};
+/**
+ * Definition of a hook for svc
+ */
+struct afb_hook_svc {
+ struct afb_hook_svc *next; /**< next hook */
+ unsigned refcount; /**< reference count */
+ char *api; /**< api hooked or NULL for any */
+ unsigned flags; /**< hook flags */
+ struct afb_hook_svc_itf *itf; /**< interface of hook */
+ void *closure; /**< closure for callbacks */
+};
+
+/**
+ * Definition of a hook for evt
+ */
+struct afb_hook_evt {
+ struct afb_hook_evt *next; /**< next hook */
+ unsigned refcount; /**< reference count */
+ char *pattern; /**< event pattern name hooked or NULL for any */
+ unsigned flags; /**< hook flags */
+ struct afb_hook_evt_itf *itf; /**< interface of hook */
+ void *closure; /**< closure for callbacks */
+};
+
/* synchronisation across threads */
static pthread_rwlock_t rwlock = PTHREAD_RWLOCK_INITIALIZER;
/* list of hooks for ditf */
static struct afb_hook_ditf *list_of_ditf_hooks = NULL;
+/* list of hooks for svc */
+static struct afb_hook_svc *list_of_svc_hooks = NULL;
+
+/* list of hooks for evt */
+static struct afb_hook_evt *list_of_evt_hooks = NULL;
+
/******************************************************************************
* section: default callbacks for tracing requests
*****************************************************************************/
+static char *_pbuf_(const char *fmt, va_list args, char **palloc, char *sbuf, size_t szsbuf)
+{
+ int rc;
+ va_list cp;
+
+ *palloc = NULL;
+ va_copy(cp, args);
+ rc = vsnprintf(sbuf, szsbuf, fmt, args);
+ if ((size_t)rc >= szsbuf) {
+ sbuf[szsbuf-1] = 0;
+ sbuf[szsbuf-2] = sbuf[szsbuf-3] = sbuf[szsbuf-4] = '.';
+ rc = vasprintf(palloc, fmt, cp);
+ if (rc >= 0)
+ sbuf = *palloc;
+ }
+ va_end(cp);
+ return sbuf;
+}
+
+static void _hook_(const char *fmt1, const char *fmt2, va_list arg2, ...)
+{
+ char *tag, *data, *mem1, *mem2, buf1[256], buf2[2000];
+ va_list arg1;
+
+ data = _pbuf_(fmt2, arg2, &mem2, buf2, sizeof buf2);
+
+ va_start(arg1, arg2);
+ tag = _pbuf_(fmt1, arg1, &mem1, buf1, sizeof buf1);
+ va_end(arg1);
+
+ NOTICE("[HOOK %s] %s", tag, data);
+
+ free(mem1);
+ free(mem2);
+}
+
static void _hook_xreq_(const struct afb_xreq *xreq, const char *format, ...)
{
- int len;
- char *buffer;
va_list ap;
-
va_start(ap, format);
- len = vasprintf(&buffer, format, ap);
+ _hook_("xreq-%06d:%s/%s", format, ap, xreq->hookindex, xreq->api, xreq->verb);
va_end(ap);
-
- if (len < 0)
- NOTICE("hook xreq-%06d:%s/%s allocation error", xreq->hookindex, xreq->api, xreq->verb);
- else {
- NOTICE("hook xreq-%06d:%s/%s %s", xreq->hookindex, xreq->api, xreq->verb, buffer);
- free(buffer);
- }
}
static void hook_xreq_begin_default_cb(void * closure, const struct afb_xreq *xreq)
static void hook_xreq_subscribe_default_cb(void * closure, const struct afb_xreq *xreq, struct afb_event event, int result)
{
- _hook_xreq_(xreq, "subscribe(%s:%p) -> %d", afb_event_name(event), event.closure, result);
+ _hook_xreq_(xreq, "subscribe(%s:%d) -> %d", afb_evt_event_name(event), afb_evt_event_id(event), result);
}
static void hook_xreq_unsubscribe_default_cb(void * closure, const struct afb_xreq *xreq, struct afb_event event, int result)
{
- _hook_xreq_(xreq, "unsubscribe(%s:%p) -> %d", afb_event_name(event), event.closure, result);
+ _hook_xreq_(xreq, "unsubscribe(%s:%d) -> %d", afb_evt_event_name(event), afb_evt_event_id(event), result);
}
static void hook_xreq_subcall_default_cb(void * closure, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
_hook_xreq_(xreq, " ...subcallsync... -> %d: %s", status, json_object_to_json_string(result));
}
+static void hook_xreq_vverbose_default_cb(void * closure, const struct afb_xreq *xreq, int level, const char *file, int line, const char *func, const char *fmt, va_list args)
+{
+ int len;
+ char *msg;
+ va_list ap;
+
+ va_copy(ap, args);
+ len = vasprintf(&msg, fmt, ap);
+ va_end(ap);
+
+ if (len < 0)
+ _hook_xreq_(xreq, "vverbose(%d, %s, %d, %s) -> %s ? ? ?", level, file, line, func, fmt);
+ else {
+ _hook_xreq_(xreq, "vverbose(%d, %s, %d, %s) -> %s", level, file, line, func, msg);
+ free(msg);
+ }
+}
+
+static void hook_xreq_store_default_cb(void * closure, const struct afb_xreq *xreq, struct afb_stored_req *sreq)
+{
+ _hook_xreq_(xreq, "store() -> %p", sreq);
+}
+
+static void hook_xreq_unstore_default_cb(void * closure, const struct afb_xreq *xreq)
+{
+ _hook_xreq_(xreq, "unstore()");
+}
+
+static void hook_xreq_subcall_req_default_cb(void * closure, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
+{
+ _hook_xreq_(xreq, "subcall_req(%s/%s, %s) ...", api, verb, json_object_to_json_string(args));
+}
+
+static void hook_xreq_subcall_req_result_default_cb(void * closure, const struct afb_xreq *xreq, int status, struct json_object *result)
+{
+ _hook_xreq_(xreq, " ...subcall_req... -> %d: %s", status, json_object_to_json_string(result));
+}
+
static struct afb_hook_xreq_itf hook_xreq_default_itf = {
.hook_xreq_begin = hook_xreq_begin_default_cb,
.hook_xreq_end = hook_xreq_end_default_cb,
.hook_xreq_subcall_result = hook_xreq_subcall_result_default_cb,
.hook_xreq_subcallsync = hook_xreq_subcallsync_default_cb,
.hook_xreq_subcallsync_result = hook_xreq_subcallsync_result_default_cb,
+ .hook_xreq_vverbose = hook_xreq_vverbose_default_cb,
+ .hook_xreq_store = hook_xreq_store_default_cb,
+ .hook_xreq_unstore = hook_xreq_unstore_default_cb,
+ .hook_xreq_subcall_req = hook_xreq_subcall_req_default_cb,
+ .hook_xreq_subcall_req_result = hook_xreq_subcall_req_result_default_cb
};
/******************************************************************************
return status;
}
+void afb_hook_xreq_vverbose(const struct afb_xreq *xreq, int level, const char *file, int line, const char *func, const char *fmt, va_list args)
+{
+ _HOOK_XREQ_(vverbose, xreq, level, file ?: "?", line, func ?: "?", fmt, args);
+}
+
+void afb_hook_xreq_store(const struct afb_xreq *xreq, struct afb_stored_req *sreq)
+{
+ _HOOK_XREQ_(store, xreq, sreq);
+}
+
+void afb_hook_xreq_unstore(const struct afb_xreq *xreq)
+{
+ _HOOK_XREQ_(unstore, xreq);
+}
+
+void afb_hook_xreq_subcall_req(const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
+{
+ _HOOK_XREQ_(subcall_req, xreq, api, verb, args);
+}
+
+void afb_hook_xreq_subcall_req_result(const struct afb_xreq *xreq, int status, struct json_object *result)
+{
+ _HOOK_XREQ_(subcall_req_result, xreq, status, result);
+}
+
/******************************************************************************
* section: hooking xreqs
*****************************************************************************/
static void _hook_ditf_(const struct afb_ditf *ditf, const char *format, ...)
{
- int len;
- char *buffer;
va_list ap;
-
va_start(ap, format);
- len = vasprintf(&buffer, format, ap);
+ _hook_("ditf-%s", format, ap, ditf->api);
va_end(ap);
-
- if (len < 0)
- NOTICE("hook ditf-%s allocation error for %s", ditf->prefix, format);
- else {
- NOTICE("hook ditf-%s %s", ditf->prefix, buffer);
- free(buffer);
- }
}
static void hook_ditf_event_broadcast_before_cb(void *closure, const struct afb_ditf *ditf, const char *name, struct json_object *object)
static void hook_ditf_event_make_cb(void *closure, const struct afb_ditf *ditf, const char *name, struct afb_event result)
{
- _hook_ditf_(ditf, "event_make(%s) -> %s:%p", name, afb_event_name(result), result.closure);
+ _hook_ditf_(ditf, "event_make(%s) -> %s:%d", name, afb_evt_event_name(result), afb_evt_event_id(result));
}
static void hook_ditf_rootdir_get_fd_cb(void *closure, const struct afb_ditf *ditf, int result)
}
}
-static void hook_ditf_queue_job(void *closure, const struct afb_ditf *ditf, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout, int result)
+static void hook_ditf_queue_job_cb(void *closure, const struct afb_ditf *ditf, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout, int result)
{
_hook_ditf_(ditf, "queue_job(%p, %p, %p, %d) -> %d", callback, argument, group, timeout, result);
}
+static void hook_ditf_unstore_req_cb(void * closure, const struct afb_ditf *ditf, struct afb_stored_req *sreq)
+{
+ _hook_ditf_(ditf, "unstore_req(%p)", sreq);
+}
+
+static void hook_ditf_require_api_cb(void *closure, const struct afb_ditf *ditf, const char *name, int initialized)
+{
+ _hook_ditf_(ditf, "require_api(%s, %d)...", name, initialized);
+}
+
+static void hook_ditf_require_api_result_cb(void *closure, const struct afb_ditf *ditf, const char *name, int initialized, int result)
+{
+ _hook_ditf_(ditf, "...require_api(%s, %d) -> %d", name, initialized, result);
+}
+
static struct afb_hook_ditf_itf hook_ditf_default_itf = {
.hook_ditf_event_broadcast_before = hook_ditf_event_broadcast_before_cb,
.hook_ditf_event_broadcast_after = hook_ditf_event_broadcast_after_cb,
.hook_ditf_event_make = hook_ditf_event_make_cb,
.hook_ditf_rootdir_get_fd = hook_ditf_rootdir_get_fd_cb,
.hook_ditf_rootdir_open_locale = hook_ditf_rootdir_open_locale_cb,
- .hook_ditf_queue_job = hook_ditf_queue_job
+ .hook_ditf_queue_job = hook_ditf_queue_job_cb,
+ .hook_ditf_unstore_req = hook_ditf_unstore_req_cb,
+ .hook_ditf_require_api = hook_ditf_require_api_cb,
+ .hook_ditf_require_api_result = hook_ditf_require_api_result_cb
};
/******************************************************************************
while (hook) { \
if (hook->itf->hook_ditf_##what \
&& (hook->flags & afb_hook_flag_ditf_##what) != 0 \
- && (!hook->api || !strcasecmp(hook->api, ditf->prefix))) { \
+ && (!hook->api || !strcasecmp(hook->api, ditf->api))) { \
hook->itf->hook_ditf_##what(hook->closure, __VA_ARGS__); \
} \
hook = hook->next; \
return result;
}
+void afb_hook_ditf_unstore_req(const struct afb_ditf *ditf, struct afb_stored_req *sreq)
+{
+ _HOOK_DITF_(unstore_req, ditf, sreq);
+}
+
+void afb_hook_ditf_require_api(const struct afb_ditf *ditf, const char *name, int initialized)
+{
+ _HOOK_DITF_(require_api, ditf, name, initialized);
+}
+
+int afb_hook_ditf_require_api_result(const struct afb_ditf *ditf, const char *name, int initialized, int result)
+{
+ _HOOK_DITF_(require_api_result, ditf, name, initialized, result);
+ return result;
+}
+
/******************************************************************************
* section: hooking ditf
*****************************************************************************/
}
}
+/******************************************************************************
+ * section: default callbacks for tracing service interface (svc)
+ *****************************************************************************/
+
+static void _hook_svc_(const struct afb_svc *svc, const char *format, ...)
+{
+ va_list ap;
+ va_start(ap, format);
+ _hook_("svc-%s", format, ap, svc->api);
+ va_end(ap);
+}
+
+static void hook_svc_start_before_default_cb(void *closure, const struct afb_svc *svc)
+{
+ _hook_svc_(svc, "start.before");
+}
+
+static void hook_svc_start_after_default_cb(void *closure, const struct afb_svc *svc, int status)
+{
+ _hook_svc_(svc, "start.after -> %d", status);
+}
+
+static void hook_svc_on_event_before_default_cb(void *closure, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
+{
+ _hook_svc_(svc, "on_event.before(%s, %d, %s)", event, eventid, json_object_to_json_string(object));
+}
+
+static void hook_svc_on_event_after_default_cb(void *closure, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
+{
+ _hook_svc_(svc, "on_event.after(%s, %d, %s)", event, eventid, json_object_to_json_string(object));
+}
+
+static void hook_svc_call_default_cb(void *closure, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
+{
+ _hook_svc_(svc, "call(%s/%s, %s) ...", api, verb, json_object_to_json_string(args));
+}
+
+static void hook_svc_call_result_default_cb(void *closure, const struct afb_svc *svc, int status, struct json_object *result)
+{
+ _hook_svc_(svc, " ...call... -> %d: %s", status, json_object_to_json_string(result));
+}
+
+static void hook_svc_callsync_default_cb(void *closure, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
+{
+ _hook_svc_(svc, "callsync(%s/%s, %s) ...", api, verb, json_object_to_json_string(args));
+}
+
+static void hook_svc_callsync_result_default_cb(void *closure, const struct afb_svc *svc, int status, struct json_object *result)
+{
+ _hook_svc_(svc, " ...callsync... -> %d: %s", status, json_object_to_json_string(result));
+}
+
+static struct afb_hook_svc_itf hook_svc_default_itf = {
+ .hook_svc_start_before = hook_svc_start_before_default_cb,
+ .hook_svc_start_after = hook_svc_start_after_default_cb,
+ .hook_svc_on_event_before = hook_svc_on_event_before_default_cb,
+ .hook_svc_on_event_after = hook_svc_on_event_after_default_cb,
+ .hook_svc_call = hook_svc_call_default_cb,
+ .hook_svc_call_result = hook_svc_call_result_default_cb,
+ .hook_svc_callsync = hook_svc_callsync_default_cb,
+ .hook_svc_callsync_result = hook_svc_callsync_result_default_cb
+};
+
+/******************************************************************************
+ * section: hooks for tracing service interface (svc)
+ *****************************************************************************/
+
+#define _HOOK_SVC_(what,...) \
+ struct afb_hook_svc *hook; \
+ pthread_rwlock_rdlock(&rwlock); \
+ hook = list_of_svc_hooks; \
+ while (hook) { \
+ if (hook->itf->hook_svc_##what \
+ && (hook->flags & afb_hook_flag_svc_##what) != 0 \
+ && (!hook->api || !strcasecmp(hook->api, svc->api))) { \
+ hook->itf->hook_svc_##what(hook->closure, __VA_ARGS__); \
+ } \
+ hook = hook->next; \
+ } \
+ pthread_rwlock_unlock(&rwlock);
+
+void afb_hook_svc_start_before(const struct afb_svc *svc)
+{
+ _HOOK_SVC_(start_before, svc);
+}
+
+int afb_hook_svc_start_after(const struct afb_svc *svc, int status)
+{
+ _HOOK_SVC_(start_after, svc, status);
+ return status;
+}
+
+void afb_hook_svc_on_event_before(const struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
+{
+ _HOOK_SVC_(on_event_before, svc, event, eventid, object);
+}
+
+void afb_hook_svc_on_event_after(const struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
+{
+ _HOOK_SVC_(on_event_after, svc, event, eventid, object);
+}
+
+void afb_hook_svc_call(const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
+{
+ _HOOK_SVC_(call, svc, api, verb, args);
+}
+
+void afb_hook_svc_call_result(const struct afb_svc *svc, int status, struct json_object *result)
+{
+ _HOOK_SVC_(call_result, svc, status, result);
+}
+
+void afb_hook_svc_callsync(const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
+{
+ _HOOK_SVC_(callsync, svc, api, verb, args);
+}
+
+int afb_hook_svc_callsync_result(const struct afb_svc *svc, int status, struct json_object *result)
+{
+ _HOOK_SVC_(callsync_result, svc, status, result);
+ return status;
+}
+
+/******************************************************************************
+ * section: hooking services (svc)
+ *****************************************************************************/
+
+int afb_hook_flags_svc(const char *api)
+{
+ int flags;
+ struct afb_hook_svc *hook;
+
+ pthread_rwlock_rdlock(&rwlock);
+ flags = 0;
+ hook = list_of_svc_hooks;
+ while (hook) {
+ if (!api || !hook->api || !strcasecmp(hook->api, api))
+ flags |= hook->flags;
+ hook = hook->next;
+ }
+ pthread_rwlock_unlock(&rwlock);
+ return flags;
+}
+
+struct afb_hook_svc *afb_hook_create_svc(const char *api, int flags, struct afb_hook_svc_itf *itf, void *closure)
+{
+ struct afb_hook_svc *hook;
+
+ /* alloc the result */
+ hook = calloc(1, sizeof *hook);
+ if (hook == NULL)
+ return NULL;
+
+ /* get a copy of the names */
+ hook->api = api ? strdup(api) : NULL;
+ if (api && !hook->api) {
+ free(hook);
+ return NULL;
+ }
+
+ /* initialise the rest */
+ hook->refcount = 1;
+ hook->flags = flags;
+ hook->itf = itf ? itf : &hook_svc_default_itf;
+ hook->closure = closure;
+
+ /* record the hook */
+ pthread_rwlock_wrlock(&rwlock);
+ hook->next = list_of_svc_hooks;
+ list_of_svc_hooks = hook;
+ pthread_rwlock_unlock(&rwlock);
+
+ /* returns it */
+ return hook;
+}
+
+struct afb_hook_svc *afb_hook_addref_svc(struct afb_hook_svc *hook)
+{
+ pthread_rwlock_wrlock(&rwlock);
+ hook->refcount++;
+ pthread_rwlock_unlock(&rwlock);
+ return hook;
+}
+
+void afb_hook_unref_svc(struct afb_hook_svc *hook)
+{
+ struct afb_hook_svc **prv;
+
+ if (hook) {
+ pthread_rwlock_wrlock(&rwlock);
+ if (--hook->refcount)
+ hook = NULL;
+ else {
+ /* unlink */
+ prv = &list_of_svc_hooks;
+ while (*prv && *prv != hook)
+ prv = &(*prv)->next;
+ if(*prv)
+ *prv = hook->next;
+ }
+ pthread_rwlock_unlock(&rwlock);
+ if (hook) {
+ /* free */
+ free(hook->api);
+ free(hook);
+ }
+ }
+}
+
+/******************************************************************************
+ * section: default callbacks for tracing service interface (evt)
+ *****************************************************************************/
+
+static void _hook_evt_(const char *evt, int id, const char *format, ...)
+{
+ va_list ap;
+ va_start(ap, format);
+ _hook_("evt-%s:%d", format, ap, evt, id);
+ va_end(ap);
+}
+
+static void hook_evt_create_default_cb(void *closure, const char *evt, int id)
+{
+ _hook_evt_(evt, id, "create");
+}
+
+static void hook_evt_push_before_default_cb(void *closure, const char *evt, int id, struct json_object *obj)
+{
+ _hook_evt_(evt, id, "push.before(%s)", json_object_to_json_string(obj));
+}
+
+
+static void hook_evt_push_after_default_cb(void *closure, const char *evt, int id, struct json_object *obj, int result)
+{
+ _hook_evt_(evt, id, "push.after(%s) -> %d", json_object_to_json_string(obj), result);
+}
+
+static void hook_evt_broadcast_before_default_cb(void *closure, const char *evt, int id, struct json_object *obj)
+{
+ _hook_evt_(evt, id, "broadcast.before(%s)", json_object_to_json_string(obj));
+}
+
+static void hook_evt_broadcast_after_default_cb(void *closure, const char *evt, int id, struct json_object *obj, int result)
+{
+ _hook_evt_(evt, id, "broadcast.after(%s) -> %d", json_object_to_json_string(obj), result);
+}
+
+static void hook_evt_name_default_cb(void *closure, const char *evt, int id)
+{
+ _hook_evt_(evt, id, "name");
+}
+
+static void hook_evt_drop_default_cb(void *closure, const char *evt, int id)
+{
+ _hook_evt_(evt, id, "drop");
+}
+
+static struct afb_hook_evt_itf hook_evt_default_itf = {
+ .hook_evt_create = hook_evt_create_default_cb,
+ .hook_evt_push_before = hook_evt_push_before_default_cb,
+ .hook_evt_push_after = hook_evt_push_after_default_cb,
+ .hook_evt_broadcast_before = hook_evt_broadcast_before_default_cb,
+ .hook_evt_broadcast_after = hook_evt_broadcast_after_default_cb,
+ .hook_evt_name = hook_evt_name_default_cb,
+ .hook_evt_drop = hook_evt_drop_default_cb
+};
+
+/******************************************************************************
+ * section: hooks for tracing service interface (evt)
+ *****************************************************************************/
+
+#define _HOOK_EVT_(what,...) \
+ struct afb_hook_evt *hook; \
+ pthread_rwlock_rdlock(&rwlock); \
+ hook = list_of_evt_hooks; \
+ while (hook) { \
+ if (hook->itf->hook_evt_##what \
+ && (hook->flags & afb_hook_flag_evt_##what) != 0 \
+ && (!hook->pattern || !fnmatch(hook->pattern, evt, FNM_CASEFOLD))) { \
+ hook->itf->hook_evt_##what(hook->closure, __VA_ARGS__); \
+ } \
+ hook = hook->next; \
+ } \
+ pthread_rwlock_unlock(&rwlock);
+
+void afb_hook_evt_create(const char *evt, int id)
+{
+ _HOOK_EVT_(create, evt, id);
+}
+
+void afb_hook_evt_push_before(const char *evt, int id, struct json_object *obj)
+{
+ _HOOK_EVT_(push_before, evt, id, obj);
+}
+
+int afb_hook_evt_push_after(const char *evt, int id, struct json_object *obj, int result)
+{
+ _HOOK_EVT_(push_after, evt, id, obj, result);
+ return result;
+}
+
+void afb_hook_evt_broadcast_before(const char *evt, int id, struct json_object *obj)
+{
+ _HOOK_EVT_(broadcast_before, evt, id, obj);
+}
+
+int afb_hook_evt_broadcast_after(const char *evt, int id, struct json_object *obj, int result)
+{
+ _HOOK_EVT_(broadcast_after, evt, id, obj, result);
+ return result;
+}
+
+void afb_hook_evt_name(const char *evt, int id)
+{
+ _HOOK_EVT_(name, evt, id);
+}
+
+void afb_hook_evt_drop(const char *evt, int id)
+{
+ _HOOK_EVT_(drop, evt, id);
+}
+
+/******************************************************************************
+ * section: hooking services (evt)
+ *****************************************************************************/
+
+int afb_hook_flags_evt(const char *name)
+{
+ int flags;
+ struct afb_hook_evt *hook;
+
+ pthread_rwlock_rdlock(&rwlock);
+ flags = 0;
+ hook = list_of_evt_hooks;
+ while (hook) {
+ if (!name || !hook->pattern || !fnmatch(hook->pattern, name, FNM_CASEFOLD))
+ flags |= hook->flags;
+ hook = hook->next;
+ }
+ pthread_rwlock_unlock(&rwlock);
+ return flags;
+}
+
+struct afb_hook_evt *afb_hook_create_evt(const char *pattern, int flags, struct afb_hook_evt_itf *itf, void *closure)
+{
+ struct afb_hook_evt *hook;
+
+ /* alloc the result */
+ hook = calloc(1, sizeof *hook);
+ if (hook == NULL)
+ return NULL;
+
+ /* get a copy of the names */
+ hook->pattern = pattern ? strdup(pattern) : NULL;
+ if (pattern && !hook->pattern) {
+ free(hook);
+ return NULL;
+ }
+
+ /* initialise the rest */
+ hook->refcount = 1;
+ hook->flags = flags;
+ hook->itf = itf ? itf : &hook_evt_default_itf;
+ hook->closure = closure;
+
+ /* record the hook */
+ pthread_rwlock_wrlock(&rwlock);
+ hook->next = list_of_evt_hooks;
+ list_of_evt_hooks = hook;
+ pthread_rwlock_unlock(&rwlock);
+
+ /* returns it */
+ return hook;
+}
+
+struct afb_hook_evt *afb_hook_addref_evt(struct afb_hook_evt *hook)
+{
+ pthread_rwlock_wrlock(&rwlock);
+ hook->refcount++;
+ pthread_rwlock_unlock(&rwlock);
+ return hook;
+}
+
+void afb_hook_unref_evt(struct afb_hook_evt *hook)
+{
+ struct afb_hook_evt **prv;
+
+ if (hook) {
+ pthread_rwlock_wrlock(&rwlock);
+ if (--hook->refcount)
+ hook = NULL;
+ else {
+ /* unlink */
+ prv = &list_of_evt_hooks;
+ while (*prv && *prv != hook)
+ prv = &(*prv)->next;
+ if(*prv)
+ *prv = hook->next;
+ }
+ pthread_rwlock_unlock(&rwlock);
+ if (hook) {
+ /* free */
+ free(hook->pattern);
+ free(hook);
+ }
+ }
+}
Code Review / src / app-framework-binder.git / blobdiff