code formatting

This commit is contained in:
badaix 2015-08-26 18:55:33 +02:00
parent c92588344e
commit a3796036ff
2 changed files with 161 additions and 151 deletions

View file

@ -29,7 +29,7 @@ PublishAvahi::PublishAvahi(const std::string& serviceName) : client(NULL), servi
{ {
group = NULL; group = NULL;
simple_poll = NULL; simple_poll = NULL;
name = avahi_strdup(serviceName_.c_str()); name = avahi_strdup(serviceName_.c_str());
} }
@ -37,23 +37,23 @@ void PublishAvahi::publish(const std::vector<AvahiService>& services)
{ {
this->services = services; this->services = services;
AvahiClient *client = NULL; AvahiClient *client = NULL;
int error; int error;
/* Allocate main loop object */ /* Allocate main loop object */
if (!(simple_poll = avahi_simple_poll_new())) if (!(simple_poll = avahi_simple_poll_new()))
{ {
logE << "Failed to create simple poll object.\n"; logE << "Failed to create simple poll object.\n";
} }
/* Allocate a new client */ /* Allocate a new client */
client = avahi_client_new(avahi_simple_poll_get(simple_poll), AVAHI_CLIENT_IGNORE_USER_CONFIG, client_callback, this, &error); client = avahi_client_new(avahi_simple_poll_get(simple_poll), AVAHI_CLIENT_IGNORE_USER_CONFIG, client_callback, this, &error);
/* Check wether creating the client object succeeded */ /* Check wether creating the client object succeeded */
if (!client) if (!client)
{ {
logE << "Failed to create client: " << avahi_strerror(error) << "\n"; logE << "Failed to create client: " << avahi_strerror(error) << "\n";
} }
active_ = true; active_ = true;
pollThread_ = std::thread(&PublishAvahi::worker, this); pollThread_ = std::thread(&PublishAvahi::worker, this);
@ -81,177 +81,187 @@ PublishAvahi::~PublishAvahi()
} }
void PublishAvahi::entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, AVAHI_GCC_UNUSED void *userdata) { void PublishAvahi::entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, AVAHI_GCC_UNUSED void *userdata)
assert(g == group || group == NULL); {
group = g; assert(g == group || group == NULL);
group = g;
/* Called whenever the entry group state changes */ /* Called whenever the entry group state changes */
switch (state) { switch (state)
case AVAHI_ENTRY_GROUP_ESTABLISHED :
/* The entry group has been established successfully */
logO << "Service '" << name << "' successfully established.\n";
break;
case AVAHI_ENTRY_GROUP_COLLISION : {
char *n;
/* A service name collision with a remote service
* happened. Let's pick a new name */
n = avahi_alternative_service_name(name);
avahi_free(name);
name = n;
logO << "Service name collision, renaming service to '" << name << "'\n";
/* And recreate the services */
static_cast<PublishAvahi*>(userdata)->create_services(avahi_entry_group_get_client(g));
break;
}
case AVAHI_ENTRY_GROUP_FAILURE :
logE << "Entry group failure: " << avahi_strerror(avahi_client_errno(avahi_entry_group_get_client(g))) << "\n";
/* Some kind of failure happened while we were registering our services */
avahi_simple_poll_quit(simple_poll);
break;
case AVAHI_ENTRY_GROUP_UNCOMMITED:
case AVAHI_ENTRY_GROUP_REGISTERING:
;
}
}
void PublishAvahi::create_services(AvahiClient *c) {
char *n, r[128];
int ret;
assert(c);
/* If this is the first time we're called, let's create a new
* entry group if necessary */
if (!group)
{ {
if (!(group = avahi_entry_group_new(c, entry_group_callback, this))) { case AVAHI_ENTRY_GROUP_ESTABLISHED :
logE << "avahi_entry_group_new() failed: " << avahi_strerror(avahi_client_errno(c)) << "\n"; /* The entry group has been established successfully */
goto fail; logO << "Service '" << name << "' successfully established.\n";
} break;
}
/* If the group is empty (either because it was just created, or
* because it was reset previously, add our entries. */
if (avahi_entry_group_is_empty(group)) { case AVAHI_ENTRY_GROUP_COLLISION : {
logO << "Adding service '" << name << "'\n"; char *n;
/* Create some random TXT data */ /* A service name collision with a remote service
snprintf(r, sizeof(r), "random=%i", rand()); * happened. Let's pick a new name */
n = avahi_alternative_service_name(name);
avahi_free(name);
name = n;
/* We will now add two services and one subtype to the entry logO << "Service name collision, renaming service to '" << name << "'\n";
* group. The two services have the same name, but differ in
* the service type (IPP vs. BSD LPR). Only services with the
* same name should be put in the same entry group. */
/* Add the service for IPP */ /* And recreate the services */
/* if ((ret = avahi_entry_group_add_service(group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_PUBLISH_UNIQUE, name, "_ipp._tcp", NULL, NULL, 651, "test=blah", r, NULL)) < 0) { static_cast<PublishAvahi*>(userdata)->create_services(avahi_entry_group_get_client(g));
break;
if (ret == AVAHI_ERR_COLLISION)
goto collision;
fprintf(stderr, "Failed to add _ipp._tcp service: %s\n", avahi_strerror(ret));
goto fail;
}
*/
/* Add the same service for BSD LPR */
for (size_t n=0; n<services.size(); ++n)
{
if ((ret = avahi_entry_group_add_service(group, AVAHI_IF_UNSPEC, services[n].proto_, AvahiPublishFlags(0), name, services[n].name_.c_str(), NULL, NULL, services[n].port_, NULL)) < 0)
{
if (ret == AVAHI_ERR_COLLISION)
goto collision;
logE << "Failed to add " << services[n].name_ << " service: " << avahi_strerror(ret) << "\n";
goto fail;
}
} }
/* Add an additional (hypothetic) subtype */ case AVAHI_ENTRY_GROUP_FAILURE :
/* if ((ret = avahi_entry_group_add_service_subtype(group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AvahiPublishFlags(0), name, "_printer._tcp", NULL, "_magic._sub._printer._tcp") < 0)) {
fprintf(stderr, "Failed to add subtype _magic._sub._printer._tcp: %s\n", avahi_strerror(ret));
goto fail;
}
*/
/* Tell the server to register the service */
if ((ret = avahi_entry_group_commit(group)) < 0) {
logE << "Failed to commit entry group: " << avahi_strerror(ret) << "\n";
goto fail;
}
}
return; logE << "Entry group failure: " << avahi_strerror(avahi_client_errno(avahi_entry_group_get_client(g))) << "\n";
/* Some kind of failure happened while we were registering our services */
avahi_simple_poll_quit(simple_poll);
break;
case AVAHI_ENTRY_GROUP_UNCOMMITED:
case AVAHI_ENTRY_GROUP_REGISTERING:
;
}
}
void PublishAvahi::create_services(AvahiClient *c)
{
char *n, r[128];
int ret;
assert(c);
/* If this is the first time we're called, let's create a new
* entry group if necessary */
if (!group)
{
if (!(group = avahi_entry_group_new(c, entry_group_callback, this)))
{
logE << "avahi_entry_group_new() failed: " << avahi_strerror(avahi_client_errno(c)) << "\n";
goto fail;
}
}
/* If the group is empty (either because it was just created, or
* because it was reset previously, add our entries. */
if (avahi_entry_group_is_empty(group))
{
logO << "Adding service '" << name << "'\n";
/* Create some random TXT data */
snprintf(r, sizeof(r), "random=%i", rand());
/* We will now add two services and one subtype to the entry
* group. The two services have the same name, but differ in
* the service type (IPP vs. BSD LPR). Only services with the
* same name should be put in the same entry group. */
/* Add the service for IPP */
/* if ((ret = avahi_entry_group_add_service(group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_PUBLISH_UNIQUE, name, "_ipp._tcp", NULL, NULL, 651, "test=blah", r, NULL)) < 0)
{
if (ret == AVAHI_ERR_COLLISION)
goto collision;
fprintf(stderr, "Failed to add _ipp._tcp service: %s\n", avahi_strerror(ret));
goto fail;
}
*/
/* Add the same service for BSD LPR */
for (size_t n=0; n<services.size(); ++n)
{
if ((ret = avahi_entry_group_add_service(group, AVAHI_IF_UNSPEC, services[n].proto_, AvahiPublishFlags(0), name, services[n].name_.c_str(), NULL, NULL, services[n].port_, NULL)) < 0)
{
if (ret == AVAHI_ERR_COLLISION)
goto collision;
logE << "Failed to add " << services[n].name_ << " service: " << avahi_strerror(ret) << "\n";
goto fail;
}
}
/* Add an additional (hypothetic) subtype */
/* if ((ret = avahi_entry_group_add_service_subtype(group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AvahiPublishFlags(0), name, "_printer._tcp", NULL, "_magic._sub._printer._tcp") < 0))
{
fprintf(stderr, "Failed to add subtype _magic._sub._printer._tcp: %s\n", avahi_strerror(ret));
goto fail;
}
*/
/* Tell the server to register the service */
if ((ret = avahi_entry_group_commit(group)) < 0)
{
logE << "Failed to commit entry group: " << avahi_strerror(ret) << "\n";
goto fail;
}
}
return;
collision: collision:
/* A service name collision with a local service happened. Let's /* A service name collision with a local service happened. Let's
* pick a new name */ * pick a new name */
n = avahi_alternative_service_name(name); n = avahi_alternative_service_name(name);
avahi_free(name); avahi_free(name);
name = n; name = n;
logO << "Service name collision, renaming service to '" << name << "'\n"; logO << "Service name collision, renaming service to '" << name << "'\n";
avahi_entry_group_reset(group); avahi_entry_group_reset(group);
create_services(c); create_services(c);
return; return;
fail: fail:
avahi_simple_poll_quit(simple_poll); avahi_simple_poll_quit(simple_poll);
} }
void PublishAvahi::client_callback(AvahiClient *c, AvahiClientState state, AVAHI_GCC_UNUSED void * userdata) { void PublishAvahi::client_callback(AvahiClient *c, AvahiClientState state, AVAHI_GCC_UNUSED void * userdata)
assert(c); {
assert(c);
/* Called whenever the client or server state changes */ /* Called whenever the client or server state changes */
switch (state) { switch (state)
case AVAHI_CLIENT_S_RUNNING: {
case AVAHI_CLIENT_S_RUNNING:
/* The server has startup successfully and registered its host /* The server has startup successfully and registered its host
* name on the network, so it's time to create our services */ * name on the network, so it's time to create our services */
static_cast<PublishAvahi*>(userdata)->create_services(c); static_cast<PublishAvahi*>(userdata)->create_services(c);
break; break;
case AVAHI_CLIENT_FAILURE: case AVAHI_CLIENT_FAILURE:
logE << "Client failure: " << avahi_strerror(avahi_client_errno(c)) << "\n"; logE << "Client failure: " << avahi_strerror(avahi_client_errno(c)) << "\n";
avahi_simple_poll_quit(simple_poll); avahi_simple_poll_quit(simple_poll);
break; break;
case AVAHI_CLIENT_S_COLLISION: case AVAHI_CLIENT_S_COLLISION:
/* Let's drop our registered services. When the server is back /* Let's drop our registered services. When the server is back
* in AVAHI_SERVER_RUNNING state we will register them * in AVAHI_SERVER_RUNNING state we will register them
* again with the new host name. */ * again with the new host name. */
case AVAHI_CLIENT_S_REGISTERING: case AVAHI_CLIENT_S_REGISTERING:
/* The server records are now being established. This /* The server records are now being established. This
* might be caused by a host name change. We need to wait * might be caused by a host name change. We need to wait
* for our own records to register until the host name is * for our own records to register until the host name is
* properly esatblished. */ * properly esatblished. */
if (group) if (group)
avahi_entry_group_reset(group); avahi_entry_group_reset(group);
break; break;
case AVAHI_CLIENT_CONNECTING: case AVAHI_CLIENT_CONNECTING:
; ;
} }
} }

View file

@ -57,7 +57,7 @@ private:
static void entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, AVAHI_GCC_UNUSED void *userdata); static void entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, AVAHI_GCC_UNUSED void *userdata);
static void client_callback(AvahiClient *c, AvahiClientState state, AVAHI_GCC_UNUSED void * userdata); static void client_callback(AvahiClient *c, AvahiClientState state, AVAHI_GCC_UNUSED void * userdata);
void create_services(AvahiClient *c); void create_services(AvahiClient *c);
AvahiClient* client; AvahiClient* client;
std::string serviceName_; std::string serviceName_;
std::thread pollThread_; std::thread pollThread_;
void worker(); void worker();