DirectResult
voodoo_link_init_connect( VoodooLink *link,
const char *hostname,
int port,
bool raw )
{
DirectResult ret;
int err;
struct addrinfo hints;
struct addrinfo *addr;
char portstr[10];
Link *l;
memset( &hints, 0, sizeof(hints) );
hints.ai_flags = AI_CANONNAME;
hints.ai_socktype = SOCK_STREAM;
hints.ai_family = PF_UNSPEC;
D_INFO( "Voodoo/Link: Looking up host '%s'...\n", hostname );
snprintf( portstr, sizeof(portstr), "%d", port );
err = getaddrinfo( hostname, portstr, &hints, &addr );
if (err) {
switch (err) {
case EAI_FAMILY:
D_ERROR( "Direct/Log: Unsupported address family!\n" );
return DR_UNSUPPORTED;
case EAI_SOCKTYPE:
D_ERROR( "Direct/Log: Unsupported socket type!\n" );
return DR_UNSUPPORTED;
case EAI_NONAME:
D_ERROR( "Direct/Log: Host not found!\n" );
return DR_FAILURE;
case EAI_SERVICE:
D_ERROR( "Direct/Log: Service is unreachable!\n" );
return DR_FAILURE;
#ifdef EAI_ADDRFAMILY
case EAI_ADDRFAMILY:
#endif
case EAI_NODATA:
D_ERROR( "Direct/Log: Host found, but has no address!\n" );
return DR_FAILURE;
case EAI_MEMORY:
return D_OOM();
case EAI_FAIL:
D_ERROR( "Direct/Log: A non-recoverable name server error occurred!\n" );
return DR_FAILURE;
case EAI_AGAIN:
D_ERROR( "Direct/Log: Temporary error, try again!\n" );
return DR_TEMPUNAVAIL;
default:
D_ERROR( "Direct/Log: Unknown error occured!?\n" );
return DR_FAILURE;
}
}
l = D_CALLOC( 1, sizeof(Link) );
if (!l)
return D_OOM();
/* Create the client socket. */
l->fd[0] = socket( addr->ai_family, SOCK_STREAM, 0 );
if (l->fd[0] < 0) {
ret = errno2result( errno );
D_PERROR( "Voodoo/Link: Socket creation failed!\n" );
freeaddrinfo( addr );
D_FREE( l );
return ret;
}
l->fd[1] = l->fd[0];
#if !VOODOO_BUILD_NO_SETSOCKOPT
if (setsockopt( l->fd[0], SOL_IP, IP_TOS, &tos, sizeof(tos) ) < 0)
D_PERROR( "Voodoo/Manager: Could not set IP_TOS!\n" );
if (setsockopt( l->fd[0], SOL_TCP, TCP_NODELAY, &one, sizeof(one) ) < 0)
D_PERROR( "Voodoo/Manager: Could not set TCP_NODELAY!\n" );
#endif
D_INFO( "Voodoo/Link: Connecting to '%s:%d'...\n", addr->ai_canonname, port );
/* Connect to the server. */
err = connect( l->fd[0], addr->ai_addr, addr->ai_addrlen );
freeaddrinfo( addr );
if (err) {
ret = errno2result( errno );
D_PERROR( "Voodoo/Link: Socket connect failed!\n" );
close( l->fd[0] );
D_FREE( l );
return ret;
}
D_INFO( "Voodoo/Link: Connected.\n" );
DUMP_SOCKET_OPTION( l->fd[0], SO_SNDLOWAT );
DUMP_SOCKET_OPTION( l->fd[0], SO_RCVLOWAT );
DUMP_SOCKET_OPTION( l->fd[0], SO_SNDBUF );
DUMP_SOCKET_OPTION( l->fd[0], SO_RCVBUF );
if (!raw) {
link->code = 0x80008676;
if (write( l->fd[1], &link->code, sizeof(link->code) ) != 4) {
D_ERROR( "Voodoo/Link: Coult not write initial four bytes!\n" );
close( l->fd[0] );
D_FREE( l );
return DR_IO;
}
}
D_INFO( "Voodoo/Link: Sent link code (%s).\n", raw ? "raw" : "packet" );
if (pipe( l->wakeup_fds ))
return errno2result( errno );
link->priv = l;
link->Close = Close;
link->Read = Read;
link->Write = Write;
link->SendReceive = SendReceive;
link->WakeUp = WakeUp;
link->WaitForData = WaitForData;
return DR_OK;
}
DirectResult
voodoo_link_init_local( VoodooLink *link,
const char *path,
bool raw )
{
DirectResult ret;
int err;
struct sockaddr_un addr;
Link *l;
D_ASSERT( link != NULL );
D_ASSERT( path != NULL );
l = D_CALLOC( 1, sizeof(Link) );
if (!l)
return D_OOM();
/* Create the client socket. */
l->fd[0] = socket( AF_LOCAL, SOCK_STREAM, 0 );
if (l->fd[0] < 0) {
ret = errno2result( errno );
D_PERROR( "Voodoo/Link: Socket creation failed!\n" );
D_FREE( l );
return ret;
}
l->fd[1] = l->fd[0];
#if !VOODOO_BUILD_NO_SETSOCKOPT
if (setsockopt( l->fd[0], SOL_IP, IP_TOS, &tos, sizeof(tos) ) < 0)
D_PERROR( "Voodoo/Manager: Could not set IP_TOS!\n" );
if (setsockopt( l->fd[0], SOL_TCP, TCP_NODELAY, &one, sizeof(one) ) < 0)
D_PERROR( "Voodoo/Manager: Could not set TCP_NODELAY!\n" );
#endif
D_INFO( "Voodoo/Link: Connecting to '%s'...\n", path );
memset( &addr, 0, sizeof(addr) );
/* Bind the socket to the local port. */
addr.sun_family = AF_UNIX;
snprintf( addr.sun_path + 1, UNIX_PATH_MAX - 1, "%s", path );
/* Connect to the server. */
err = connect( l->fd[0], (struct sockaddr*) &addr, strlen(addr.sun_path+1)+1 + sizeof(addr.sun_family) );
if (err) {
ret = errno2result( errno );
D_PERROR( "Voodoo/Link: Socket connect failed!\n" );
close( l->fd[0] );
D_FREE( l );
return ret;
}
D_INFO( "Voodoo/Link: Connected.\n" );
DUMP_SOCKET_OPTION( l->fd[0], SO_SNDLOWAT );
DUMP_SOCKET_OPTION( l->fd[0], SO_RCVLOWAT );
DUMP_SOCKET_OPTION( l->fd[0], SO_SNDBUF );
DUMP_SOCKET_OPTION( l->fd[0], SO_RCVBUF );
if (!raw) {
link->code = 0x80008676;
if (write( l->fd[1], &link->code, sizeof(link->code) ) != 4) {
D_ERROR( "Voodoo/Link: Coult not write initial four bytes!\n" );
close( l->fd[0] );
D_FREE( l );
return DR_IO;
}
}
D_INFO( "Voodoo/Link: Sent link code (%s).\n", raw ? "raw" : "packet" );
if (pipe( l->wakeup_fds ))
return errno2result( errno );
link->priv = l;
link->Close = Close;
link->Read = Read;
link->Write = Write;
link->SendReceive = SendReceive;
link->WakeUp = WakeUp;
link->WaitForData = WaitForData;
return DR_OK;
}
DirectResult
voodoo_manager_create( int fd,
VoodooClient *client,
VoodooServer *server,
VoodooManager **ret_manager )
{
DirectResult ret;
VoodooManager *manager;
int val;
unsigned int len;
static const int tos = IPTOS_LOWDELAY;
D_ASSERT( fd >= 0 );
D_ASSERT( (client != NULL) ^ (server != NULL) );
D_ASSERT( ret_manager != NULL );
/* Allocate manager structure. */
manager = D_CALLOC( 1, sizeof(VoodooManager) );
if (!manager) {
D_WARN( "out of memory" );
return DR_NOLOCALMEMORY;
}
D_DEBUG( "Voodoo/Manager: Creating manager at %p.\n", manager );
if (setsockopt( fd, SOL_IP, IP_TOS, &tos, sizeof(tos) ) < 0)
D_PERROR( "Voodoo/Manager: Could not set IP_TOS!\n" );
if (setsockopt( fd, SOL_TCP, TCP_NODELAY, &one, sizeof(one) ) < 0)
D_PERROR( "Voodoo/Manager: Could not set TCP_NODELAY!\n" );
DUMP_SOCKET_OPTION( SO_SNDLOWAT );
DUMP_SOCKET_OPTION( SO_RCVLOWAT );
DUMP_SOCKET_OPTION( SO_SNDBUF );
DUMP_SOCKET_OPTION( SO_RCVBUF );
/* Create the hash table for dispatcher instances. */
ret = direct_hash_create( 251, &manager->instances.local );
if (ret) {
D_FREE( manager );
return ret;
}
/* Create the hash table for requestor instances. */
ret = direct_hash_create( 251, &manager->instances.remote );
if (ret) {
direct_hash_destroy( manager->instances.local );
D_FREE( manager );
return ret;
}
/* Store file descriptor. */
manager->fd = fd;
/* Store client or server. */
manager->client = client;
manager->server = server;
/* Initialize all locks. */
direct_util_recursive_pthread_mutex_init( &manager->instances.lock );
direct_util_recursive_pthread_mutex_init( &manager->response.lock );
direct_util_recursive_pthread_mutex_init( &manager->input.lock );
direct_util_recursive_pthread_mutex_init( &manager->output.lock );
/* Initialize all wait conditions. */
pthread_cond_init( &manager->response.wait, NULL );
pthread_cond_init( &manager->input.wait, NULL );
pthread_cond_init( &manager->output.wait, NULL );
/* Set default buffer limit. */
manager->input.max = IN_BUF_MAX;
D_MAGIC_SET( manager, VoodooManager );
/* Create all threads. */
manager->dispatcher = direct_thread_create( DTT_MESSAGING, manager_dispatch_loop,
manager, "Voodoo Dispatch" );
manager->input.thread = direct_thread_create( DTT_INPUT, manager_input_loop,
manager, "Voodoo Input" );
manager->output.thread = direct_thread_create( DTT_OUTPUT, manager_output_loop,
manager, "Voodoo Output" );
/* Return the new manager. */
*ret_manager = manager;
return DR_OK;
}
