From 3a816205ffde85bcf06c9ff55febc1ba69ce8de9 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Thu, 13 Jul 2006 15:54:13 +0000 Subject: update module-zeroconf-publish to make use of the native AVAHI API, instead of HOWL git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1068 fefdeb5f-60dc-0310-8127-8f9354f1896f --- src/Makefile.am | 19 +- src/modules/module-zeroconf-publish.c | 426 ++++++++++++++++++++++++---------- src/pulsecore/avahi-wrap.c | 188 +++++++++++++++ src/pulsecore/avahi-wrap.h | 33 +++ 4 files changed, 537 insertions(+), 129 deletions(-) create mode 100644 src/pulsecore/avahi-wrap.c create mode 100644 src/pulsecore/avahi-wrap.h diff --git a/src/Makefile.am b/src/Makefile.am index 2bd3b871..8c8168d5 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -667,6 +667,14 @@ modlibexec_LTLIBRARIES += \ libx11prop.la endif +if HAVE_AVAHI +pulsecoreinclude_HEADERS += \ + pulsecore/avahi-wrap.h + +modlibexec_LTLIBRARIES += \ + libavahi-wrap.la +endif + libprotocol_simple_la_SOURCES = pulsecore/protocol-simple.c pulsecore/protocol-simple.h libprotocol_simple_la_LDFLAGS = -avoid-version libprotocol_simple_la_LIBADD = $(AM_LIBADD) libpulsecore.la libsocket-server.la libiochannel.la @@ -770,6 +778,13 @@ libx11prop_la_LDFLAGS = -avoid-version libx11prop_la_CFLAGS = $(AM_CFLAGS) $(X_CFLAGS) libx11prop_la_LIBADD = $(AM_LIBADD) $(X_PRE_LIBS) -lX11 $(X_LIBS) $(X_EXTRA_LIBS) +# Avahi + +libavahi_wrap_la_SOURCES = pulsecore/avahi-wrap.c pulsecore/avahi-wrap.h +libavahi_wrap_la_LDFLAGS = -avoid-version +libavahi_wrap_la_CFLAGS = $(AM_CFLAGS) $(AVAHI_CFLAGS) +libavahi_wrap_la_LIBADD = $(AM_LIBADD) $(AVAHI_CFLAGS) libpulsecore.la + ################################### # Plug-in libraries # ################################### @@ -1105,8 +1120,8 @@ libhowl_wrap_la_CFLAGS = $(AM_CFLAGS) $(HOWL_CFLAGS) module_zeroconf_publish_la_SOURCES = modules/module-zeroconf-publish.c module_zeroconf_publish_la_LDFLAGS = -module -avoid-version -module_zeroconf_publish_la_LIBADD = $(AM_LIBADD) $(HOWL_LIBS) libhowl-wrap.la libpulsecore.la -module_zeroconf_publish_la_CFLAGS = $(AM_CFLAGS) $(HOWL_CFLAGS) +module_zeroconf_publish_la_LIBADD = $(AM_LIBADD) $(AVAHI_LIBS) libavahi-wrap.la libpulsecore.la +module_zeroconf_publish_la_CFLAGS = $(AM_CFLAGS) $(AVAHI_CFLAGS) # LIRC diff --git a/src/modules/module-zeroconf-publish.c b/src/modules/module-zeroconf-publish.c index 32fb1f41..23a188b3 100644 --- a/src/modules/module-zeroconf-publish.c +++ b/src/modules/module-zeroconf-publish.c @@ -29,6 +29,11 @@ #include #include +#include +#include +#include +#include + #include #include @@ -41,10 +46,8 @@ #include #include #include - -#include "../pulsecore/endianmacros.h" - -#include "howl-wrap.h" +#include +#include #include "module-zeroconf-publish-symdef.h" @@ -53,9 +56,9 @@ PA_MODULE_DESCRIPTION("mDNS/DNS-SD Service Publisher") PA_MODULE_VERSION(PACKAGE_VERSION) PA_MODULE_USAGE("port=") -#define SERVICE_NAME_SINK "_pulse-sink._tcp" -#define SERVICE_NAME_SOURCE "_pulse-source._tcp" -#define SERVICE_NAME_SERVER "_pulse-server._tcp" +#define SERVICE_TYPE_SINK "_pulse-sink._tcp" +#define SERVICE_TYPE_SOURCE "_pulse-source._tcp" +#define SERVICE_TYPE_SERVER "_pulse-server._tcp" static const char* const valid_modargs[] = { "port", @@ -63,9 +66,11 @@ static const char* const valid_modargs[] = { }; struct service { - sw_discovery_oid oid; + struct userdata *userdata; + AvahiEntryGroup *entry_group; + char *service_name; char *name; - int published; /* 0 -> not yet registered, 1 -> registered with data from real device, 2 -> registered with data from autoload device */ + enum { UNPUBLISHED, PUBLISHED_REAL, PUBLISHED_AUTOLOAD } published ; struct { int valid; @@ -82,19 +87,18 @@ struct service { struct userdata { pa_core *core; - pa_howl_wrapper *howl_wrapper; + AvahiPoll *avahi_poll; + AvahiClient *client; pa_hashmap *services; pa_dynarray *sink_dynarray, *source_dynarray, *autoload_dynarray; pa_subscription *subscription; + char *service_name; + + AvahiEntryGroup *main_entry_group; uint16_t port; - sw_discovery_oid server_oid; }; -static sw_result publish_reply(sw_discovery discovery, sw_discovery_publish_status status, sw_discovery_oid oid, sw_opaque extra) { - return SW_OKAY; -} - static void get_service_data(struct userdata *u, struct service *s, pa_sample_spec *ret_ss, char **ret_description) { assert(u && s && s->loaded.valid && ret_ss && ret_description); @@ -112,109 +116,144 @@ static void get_service_data(struct userdata *u, struct service *s, pa_sample_sp assert(0); } -static void txt_record_server_data(pa_core *c, sw_text_record t) { - char s[256]; +static AvahiStringList* txt_record_server_data(pa_core *c, AvahiStringList *l) { + char s[128]; assert(c); - sw_text_record_add_key_and_string_value(t, "server-version", PACKAGE_NAME" "PACKAGE_VERSION); - sw_text_record_add_key_and_string_value(t, "user-name", pa_get_user_name(s, sizeof(s))); - sw_text_record_add_key_and_string_value(t, "fqdn", pa_get_fqdn(s, sizeof(s))); - snprintf(s, sizeof(s), "0x%08x", c->cookie); - sw_text_record_add_key_and_string_value(t, "cookie", s); + l = avahi_string_list_add_pair(l, "server-version", PACKAGE_NAME" "PACKAGE_VERSION); + l = avahi_string_list_add_pair(l, "user-name", pa_get_user_name(s, sizeof(s))); + l = avahi_string_list_add_pair(l, "fqdn", pa_get_fqdn(s, sizeof(s))); + l = avahi_string_list_add_printf(l, "cookie=0x%08x", c->cookie); + + return l; } -static int publish_service(struct userdata *u, struct service *s) { - char t[256]; - char hn[256]; - int r = -1; - sw_text_record txt; - int free_txt = 0; - assert(u && s); - - if ((s->published == 1 && s->loaded.valid) || - (s->published == 2 && s->autoload.valid && !s->loaded.valid)) - return 0; +static int publish_service(struct userdata *u, struct service *s); - if (s->published) { - sw_discovery_cancel(pa_howl_wrapper_get_discovery(u->howl_wrapper), s->oid); - s->published = 0; - } +static void service_entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, void *userdata) { + struct service *s = userdata; - snprintf(t, sizeof(t), "%s on %s", s->name, pa_get_host_name(hn, sizeof(hn))); + if (state == AVAHI_ENTRY_GROUP_COLLISION) { + char *t; - if (sw_text_record_init(&txt) != SW_OKAY) { - pa_log(__FILE__": sw_text_record_init() failed"); - goto finish; + t = avahi_alternative_service_name(s->service_name); + pa_xfree(s->service_name); + s->service_name = t; + + publish_service(s->userdata, s); } - free_txt = 1; +} + +static int publish_service(struct userdata *u, struct service *s) { + int r = -1; + AvahiStringList *txt = NULL; + + assert(u); + assert(s); - sw_text_record_add_key_and_string_value(txt, "device", s->name); + if (!u->client || avahi_client_get_state(u->client) != AVAHI_CLIENT_S_RUNNING) + return 0; + + if ((s->published == PUBLISHED_REAL && s->loaded.valid) || + (s->published == PUBLISHED_AUTOLOAD && s->autoload.valid && !s->loaded.valid)) + return 0; - txt_record_server_data(u->core, txt); + if (s->published != UNPUBLISHED) { + avahi_entry_group_reset(s->entry_group); + s->published = UNPUBLISHED; + } - if (s->loaded.valid) { - char z[64], *description; - pa_sample_spec ss; + if (s->loaded.valid || s->autoload.valid) { + pa_namereg_type_t type; - get_service_data(u, s, &ss, &description); + if (!s->entry_group) { + if (!(s->entry_group = avahi_entry_group_new(u->client, service_entry_group_callback, s))) { + pa_log("avahi_entry_group_new(): %s", avahi_strerror(avahi_client_errno(u->client))); + goto finish; + } + } + + txt = avahi_string_list_add_pair(txt, "device", s->name); + txt = txt_record_server_data(u->core, txt); + + if (s->loaded.valid) { + char *description; + pa_sample_spec ss; + + get_service_data(u, s, &ss, &description); + + txt = avahi_string_list_add_printf(txt, "rate=%u", ss.rate); + txt = avahi_string_list_add_printf(txt, "channels=%u", ss.channels); + txt = avahi_string_list_add_pair(txt, "format", pa_sample_format_to_string(ss.format)); + txt = avahi_string_list_add_pair(txt, "description", description); - snprintf(z, sizeof(z), "%u", ss.rate); - sw_text_record_add_key_and_string_value(txt, "rate", z); - snprintf(z, sizeof(z), "%u", ss.channels); - sw_text_record_add_key_and_string_value(txt, "channels", z); - sw_text_record_add_key_and_string_value(txt, "format", pa_sample_format_to_string(ss.format)); - - sw_text_record_add_key_and_string_value(txt, "description", description); - - if (sw_discovery_publish(pa_howl_wrapper_get_discovery(u->howl_wrapper), 0, t, - s->loaded.type == PA_NAMEREG_SINK ? SERVICE_NAME_SINK : SERVICE_NAME_SOURCE, - NULL, NULL, u->port, sw_text_record_bytes(txt), sw_text_record_len(txt), - publish_reply, s, &s->oid) != SW_OKAY) { - pa_log(__FILE__": failed to register sink on zeroconf."); + type = s->loaded.type; + } else if (s->autoload.valid) + type = s->autoload.type; + + if (avahi_entry_group_add_service_strlst( + s->entry_group, + AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, + 0, + s->service_name, + type == PA_NAMEREG_SINK ? SERVICE_TYPE_SINK : SERVICE_TYPE_SOURCE, + NULL, + NULL, + u->port, + txt) < 0) { + + pa_log(__FILE__": avahi_entry_group_add_service_strlst(): %s", avahi_strerror(avahi_client_errno(u->client))); goto finish; } - - s->published = 1; - } else if (s->autoload.valid) { - - if (sw_discovery_publish(pa_howl_wrapper_get_discovery(u->howl_wrapper), 0, t, - s->autoload.type == PA_NAMEREG_SINK ? SERVICE_NAME_SINK : SERVICE_NAME_SOURCE, - NULL, NULL, u->port, sw_text_record_bytes(txt), sw_text_record_len(txt), - publish_reply, s, &s->oid) != SW_OKAY) { - pa_log(__FILE__": failed to register sink on zeroconf."); + + if (avahi_entry_group_commit(s->entry_group) < 0) { + pa_log(__FILE__": avahi_entry_group_commit(): %s", avahi_strerror(avahi_client_errno(u->client))); goto finish; } - - s->published = 2; + + if (s->loaded.valid) + s->published = PUBLISHED_REAL; + else if (s->autoload.valid) + s->published = PUBLISHED_AUTOLOAD; } - + r = 0; finish: - if (!s->published) { + if (s->published == UNPUBLISHED) { /* Remove this service */ + + if (s->entry_group) { + avahi_entry_group_free(s->entry_group); + } + pa_hashmap_remove(u->services, s->name); pa_xfree(s->name); + pa_xfree(s->service_name); pa_xfree(s); } - if (free_txt) - sw_text_record_fina(txt); + if (txt) + avahi_string_list_free(txt); return r; } static struct service *get_service(struct userdata *u, const char *name) { struct service *s; + char hn[64]; if ((s = pa_hashmap_get(u->services, name))) return s; - s = pa_xmalloc(sizeof(struct service)); - s->published = 0; + s = pa_xnew(struct service, 1); + s->userdata = u; + s->entry_group = NULL; + s->published = UNPUBLISHED; s->name = pa_xstrdup(name); s->loaded.valid = s->autoload.valid = 0; + s->service_name = pa_sprintf_malloc("%s on %s", s->name, pa_get_host_name(hn, sizeof(hn))); pa_hashmap_put(u->services, s->name, s); @@ -227,7 +266,7 @@ static int publish_sink(struct userdata *u, pa_sink *s) { svc = get_service(u, s->name); if (svc->loaded.valid) - return 0; + return publish_service(u, svc); svc->loaded.valid = 1; svc->loaded.type = PA_NAMEREG_SINK; @@ -244,7 +283,7 @@ static int publish_source(struct userdata *u, pa_source *s) { svc = get_service(u, s->name); if (svc->loaded.valid) - return 0; + return publish_service(u, svc); svc->loaded.valid = 1; svc->loaded.type = PA_NAMEREG_SOURCE; @@ -261,7 +300,7 @@ static int publish_autoload(struct userdata *u, pa_autoload_entry *s) { svc = get_service(u, s->name); if (svc->autoload.valid) - return 0; + return publish_service(u, svc); svc->autoload.valid = 1; svc->autoload.type = s->type; @@ -381,16 +420,164 @@ fail: } } -int pa__init(pa_core *c, pa_module*m) { - struct userdata *u; - uint32_t idx, port = PA_NATIVE_DEFAULT_PORT; +static int publish_main_service(struct userdata *u); + +static void main_entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, void *userdata) { + struct userdata *u = userdata; + assert(u); + + if (state == AVAHI_ENTRY_GROUP_COLLISION) { + char *t; + + t = avahi_alternative_service_name(u->service_name); + pa_xfree(u->service_name); + u->service_name = t; + + publish_main_service(u); + } +} + +static int publish_main_service(struct userdata *u) { + AvahiStringList *txt = NULL; + int r = -1; + + if (!u->main_entry_group) { + if (!(u->main_entry_group = avahi_entry_group_new(u->client, main_entry_group_callback, u))) { + pa_log(__FILE__": avahi_entry_group_new() failed: %s", avahi_strerror(avahi_client_errno(u->client))); + goto fail; + } + } else + avahi_entry_group_reset(u->main_entry_group); + + txt = txt_record_server_data(u->core, NULL); + + if (avahi_entry_group_add_service_strlst( + u->main_entry_group, + AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, + 0, + u->service_name, + SERVICE_TYPE_SERVER, + NULL, + NULL, + u->port, + txt) < 0) { + + pa_log(__FILE__": avahi_entry_group_add_service_strlst() failed: %s", avahi_strerror(avahi_client_errno(u->client))); + goto fail; + } + + if (avahi_entry_group_commit(u->main_entry_group) < 0) { + pa_log(__FILE__": avahi_entry_group_commit() failed: %s", avahi_strerror(avahi_client_errno(u->client))); + goto fail; + } + + r = 0; + +fail: + avahi_string_list_free(txt); + + return r; +} + +static int publish_all_services(struct userdata *u) { pa_sink *sink; pa_source *source; pa_autoload_entry *autoload; + int r = -1; + uint32_t idx; + + assert(u); + + pa_log_debug(__FILE__": Publishing services in Zeroconf"); + + for (sink = pa_idxset_first(u->core->sinks, &idx); sink; sink = pa_idxset_next(u->core->sinks, &idx)) + if (publish_sink(u, sink) < 0) + goto fail; + + for (source = pa_idxset_first(u->core->sources, &idx); source; source = pa_idxset_next(u->core->sources, &idx)) + if (publish_source(u, source) < 0) + goto fail; + + if (u->core->autoload_idxset) + for (autoload = pa_idxset_first(u->core->autoload_idxset, &idx); autoload; autoload = pa_idxset_next(u->core->autoload_idxset, &idx)) + if (publish_autoload(u, autoload) < 0) + goto fail; + + if (publish_main_service(u) < 0) + goto fail; + + r = 0; + +fail: + return r; +} + +static void unpublish_all_services(struct userdata *u, int rem) { + void *state = NULL; + struct service *s; + + assert(u); + + pa_log_debug(__FILE__": Unpublishing services in Zeroconf"); + + while ((s = pa_hashmap_iterate(u->services, &state, NULL))) { + if (s->entry_group) { + if (rem) { + avahi_entry_group_free(s->entry_group); + s->entry_group = NULL; + } else + avahi_entry_group_reset(s->entry_group); + } + + s->published = UNPUBLISHED; + } + + if (u->main_entry_group) { + if (rem) { + avahi_entry_group_free(u->main_entry_group); + u->main_entry_group = NULL; + } else + avahi_entry_group_reset(u->main_entry_group); + } +} + +static void client_callback(AvahiClient *c, AvahiClientState state, void *userdata) { + struct userdata *u = userdata; + assert(c); + + u->client = c; + + switch (state) { + case AVAHI_CLIENT_S_RUNNING: + publish_all_services(u); + break; + + case AVAHI_CLIENT_S_COLLISION: + unpublish_all_services(u, 0); + break; + + case AVAHI_CLIENT_FAILURE: + if (avahi_client_errno(c) == AVAHI_ERR_DISCONNECTED) { + int error; + unpublish_all_services(u, 1); + avahi_client_free(u->client); + + if (!(u->client = avahi_client_new(u->avahi_poll, AVAHI_CLIENT_NO_FAIL, client_callback, u, &error))) + pa_log(__FILE__": pa_avahi_client_new() failed: %s", avahi_strerror(error)); + } + + break; + + default: ; + } +} + +int pa__init(pa_core *c, pa_module*m) { + struct userdata *u; + uint32_t port = PA_NATIVE_DEFAULT_PORT; pa_modargs *ma = NULL; - char t[256], hn[256]; - int free_txt = 0; - sw_text_record txt; + char hn[256]; + int error; if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { pa_log(__FILE__": failed to parse module arguments."); @@ -402,55 +589,31 @@ int pa__init(pa_core *c, pa_module*m) { goto fail; } - m->userdata = u = pa_xmalloc(sizeof(struct userdata)); + m->userdata = u = pa_xnew(struct userdata, 1); u->core = c; u->port = (uint16_t) port; - if (!(u->howl_wrapper = pa_howl_wrapper_get(c))) - goto fail; - + u->avahi_poll = pa_avahi_poll_new(c->mainloop); + u->services = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func); u->sink_dynarray = pa_dynarray_new(); u->source_dynarray = pa_dynarray_new(); u->autoload_dynarray = pa_dynarray_new(); - + u->subscription = pa_subscription_new(c, PA_SUBSCRIPTION_MASK_SINK| PA_SUBSCRIPTION_MASK_SOURCE| PA_SUBSCRIPTION_MASK_AUTOLOAD, subscribe_callback, u); - for (sink = pa_idxset_first(c->sinks, &idx); sink; sink = pa_idxset_next(c->sinks, &idx)) - if (publish_sink(u, sink) < 0) - goto fail; + u->main_entry_group = NULL; - for (source = pa_idxset_first(c->sources, &idx); source; source = pa_idxset_next(c->sources, &idx)) - if (publish_source(u, source) < 0) - goto fail; + u->service_name = pa_xstrdup(pa_get_host_name(hn, sizeof(hn))); - if (c->autoload_idxset) - for (autoload = pa_idxset_first(c->autoload_idxset, &idx); autoload; autoload = pa_idxset_next(c->autoload_idxset, &idx)) - if (publish_autoload(u, autoload) < 0) - goto fail; - - snprintf(t, sizeof(t), "%s", pa_get_host_name(hn, sizeof(hn))); - - if (sw_text_record_init(&txt) != SW_OKAY) { - pa_log(__FILE__": sw_text_record_init() failed"); + if (!(u->client = avahi_client_new(u->avahi_poll, AVAHI_CLIENT_NO_FAIL, client_callback, u, &error))) { + pa_log(__FILE__": pa_avahi_client_new() failed: %s", avahi_strerror(error)); goto fail; } - free_txt = 1; - txt_record_server_data(u->core, txt); - - if (sw_discovery_publish(pa_howl_wrapper_get_discovery(u->howl_wrapper), 0, t, - SERVICE_NAME_SERVER, - NULL, NULL, u->port, sw_text_record_bytes(txt), sw_text_record_len(txt), - publish_reply, u, &u->server_oid) != SW_OKAY) { - pa_log(__FILE__": failed to register server on zeroconf."); - goto fail; - } - - sw_text_record_fina(txt); pa_modargs_free(ma); return 0; @@ -460,9 +623,6 @@ fail: if (ma) pa_modargs_free(ma); - - if (free_txt) - sw_text_record_fina(txt); return -1; } @@ -470,8 +630,14 @@ fail: static void service_free(void *p, void *userdata) { struct service *s = p; struct userdata *u = userdata; - assert(s && u); - sw_discovery_cancel(pa_howl_wrapper_get_discovery(u->howl_wrapper), s->oid); + + assert(s); + assert(u); + + if (s->entry_group) + avahi_entry_group_free(s->entry_group); + + pa_xfree(s->service_name); pa_xfree(s->name); pa_xfree(s); } @@ -495,11 +661,17 @@ void pa__done(pa_core *c, pa_module*m) { if (u->subscription) pa_subscription_free(u->subscription); - - if (u->howl_wrapper) - pa_howl_wrapper_unref(u->howl_wrapper); + if (u->main_entry_group) + avahi_entry_group_free(u->main_entry_group); + if (u->client) + avahi_client_free(u->client); + + if (u->avahi_poll) + pa_avahi_poll_free(u->avahi_poll); + + pa_xfree(u->service_name); pa_xfree(u); } diff --git a/src/pulsecore/avahi-wrap.c b/src/pulsecore/avahi-wrap.c new file mode 100644 index 00000000..9da76558 --- /dev/null +++ b/src/pulsecore/avahi-wrap.c @@ -0,0 +1,188 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include + +#include + +#include + +#include "avahi-wrap.h" + +typedef struct { + AvahiPoll api; + pa_mainloop_api *mainloop; +} pa_avahi_poll; + +struct AvahiWatch { + pa_io_event *io_event; + pa_avahi_poll *avahi_poll; + AvahiWatchEvent current_event; + AvahiWatchCallback callback; + void *userdata; +}; + +static AvahiWatchEvent translate_io_flags_back(pa_io_event_flags_t e) { + return + (e & PA_IO_EVENT_INPUT ? AVAHI_WATCH_IN : 0) | + (e & PA_IO_EVENT_OUTPUT ? AVAHI_WATCH_OUT : 0) | + (e & PA_IO_EVENT_ERROR ? AVAHI_WATCH_ERR : 0) | + (e & PA_IO_EVENT_HANGUP ? AVAHI_WATCH_HUP : 0); +} + +static pa_io_event_flags_t translate_io_flags(AvahiWatchEvent e) { + return + (e & AVAHI_WATCH_IN ? PA_IO_EVENT_INPUT : 0) | + (e & AVAHI_WATCH_OUT ? PA_IO_EVENT_OUTPUT : 0) | + (e & AVAHI_WATCH_ERR ? PA_IO_EVENT_ERROR : 0) | + (e & AVAHI_WATCH_HUP ? PA_IO_EVENT_HANGUP : 0); +} + +static void watch_callback(pa_mainloop_api*a, pa_io_event* e, int fd, pa_io_event_flags_t events, void *userdata) { + AvahiWatch *w = userdata; + + assert(a); + assert(e); + assert(w); + + w->current_event = translate_io_flags_back(events); + w->callback(w, fd, w->current_event, w->userdata); + w->current_event = 0; +} + +static AvahiWatch* watch_new(const AvahiPoll *api, int fd, AvahiWatchEvent event, AvahiWatchCallback callback, void *userdata) { + pa_avahi_poll *p; + AvahiWatch *w; + + assert(api); + assert(fd >= 0); + assert(callback); + + p = api->userdata; + assert(p); + + w = pa_xnew(AvahiWatch, 1); + w->avahi_poll = p; + w->current_event = 0; + w->callback = callback; + w->userdata = userdata; + w->io_event = p->mainloop->io_new(p->mainloop, fd, translate_io_flags(event), watch_callback, w); + + return w; +} + +static void watch_update(AvahiWatch *w, AvahiWatchEvent event) { + assert(w); + + w->avahi_poll->mainloop->io_enable(w->io_event, translate_io_flags(event)); +} + +static AvahiWatchEvent watch_get_events(AvahiWatch *w) { + assert(w); + + return w->current_event; +} + +static void watch_free(AvahiWatch *w) { + assert(w); + + w->avahi_poll->mainloop->io_free(w->io_event); + pa_xfree(w); +} + +struct AvahiTimeout { + pa_time_event *time_event; + pa_avahi_poll *avahi_poll; + AvahiTimeoutCallback callback; + void *userdata; +}; + +static void timeout_callback(pa_mainloop_api*a, pa_time_event* e, const struct timeval *tv, void *userdata) { + AvahiTimeout *t = userdata; + + assert(a); + assert(e); + assert(t); + + t->callback(t, t->userdata); +} + +static AvahiTimeout* timeout_new(const AvahiPoll *api, const struct timeval *tv, AvahiTimeoutCallback callback, void *userdata) { + pa_avahi_poll *p; + AvahiTimeout *t; + + assert(api); + assert(callback); + + p = api->userdata; + assert(p); + + t = pa_xnew(AvahiTimeout, 1); + t->avahi_poll = p; + t->callback = callback; + t->userdata = userdata; + t->time_event = p->mainloop->time_new(p->mainloop, tv, timeout_callback, t); + + return t; +} + +static void timeout_update(AvahiTimeout *t, const struct timeval *tv) { + assert(t); + + t->avahi_poll->mainloop->time_restart(t->time_event, tv); +} + +static void timeout_free(AvahiTimeout *t) { + assert(t); + + t->avahi_poll->mainloop->time_free(t->time_event); + pa_xfree(t); +} + +AvahiPoll* pa_avahi_poll_new(pa_mainloop_api *m) { + pa_avahi_poll *p; + + assert(m); + + p = pa_xnew(pa_avahi_poll, 1); + + p->api.userdata = p; + p->api.watch_new = watch_new; + p->api.watch_update = watch_update; + p->api.watch_get_events = watch_get_events; + p->api.watch_free = watch_free; + p->api.timeout_new = timeout_new; + p->api.timeout_update = timeout_update; + p->api.timeout_free = timeout_free; + p->mainloop = m; + + return &p->api; +} + +void pa_avahi_poll_free(AvahiPoll *api) { + pa_avahi_poll *p; + assert(api); + p = api->userdata; + assert(p); + + pa_xfree(p); +} + diff --git a/src/pulsecore/avahi-wrap.h b/src/pulsecore/avahi-wrap.h new file mode 100644 index 00000000..97da11eb --- /dev/null +++ b/src/pulsecore/avahi-wrap.h @@ -0,0 +1,33 @@ +#ifndef fooavahiwrapperhfoo +#define fooavahiwrapperhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include + +#include + +AvahiPoll* pa_avahi_poll_new(pa_mainloop_api *api); +void pa_avahi_poll_free(AvahiPoll *p); + + +#endif -- cgit