diff options
Diffstat (limited to 'backends/sacn.c')
| -rw-r--r-- | backends/sacn.c | 64 |
1 files changed, 46 insertions, 18 deletions
diff --git a/backends/sacn.c b/backends/sacn.c index bce3887..b3376d7 100644 --- a/backends/sacn.c +++ b/backends/sacn.c @@ -275,9 +275,10 @@ static channel* sacn_channel(instance* inst, char* spec, uint8_t flags){ return data->data.channel + chan_a; } -static int sacn_transmit(instance* inst){ - size_t u; +static int sacn_transmit(instance* inst, sacn_output_universe* output){ sacn_instance_data* data = (sacn_instance_data*) inst->impl; + + //build sacn frame sacn_data_pdu pdu = { .root = { .preamble_size = htobe16(0x10), @@ -312,16 +313,31 @@ static int sacn_transmit(instance* inst){ memcpy((((uint8_t*)pdu.data.data) + 1), data->data.out, 512); if(sendto(global_cfg.fd[data->fd_index].fd, (uint8_t*) &pdu, sizeof(pdu), 0, (struct sockaddr*) &data->dest_addr, data->dest_len) < 0){ - LOGPF("Failed to output frame for instance %s: %s", inst->name, strerror(errno)); - } + #ifndef _WIN32 + if(errno != EAGAIN){ + LOGPF("Failed to output frame for instance %s: %s", inst->name, strerror(errno)); + #else + if(WSAGetLastError() != WSAEWOULDBLOCK){ + char* error = NULL; + FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, + NULL, WSAGetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &error, 0, NULL); + LOGPF("Failed to output frame for instance %s: %s", inst->name, error); + LocalFree(error); + #endif + return 1; + } - //update last transmit timestamp, unmark instance - for(u = 0; u < global_cfg.fd[data->fd_index].universes; u++){ - if(global_cfg.fd[data->fd_index].universe[u].universe == data->uni){ - global_cfg.fd[data->fd_index].universe[u].last_frame = mm_timestamp(); - global_cfg.fd[data->fd_index].universe[u].mark = 0; + //reschedule output + output->mark = 1; + if(!global_cfg.next_frame || global_cfg.next_frame > SACN_SYNTHESIZE_MARGIN){ + global_cfg.next_frame = SACN_SYNTHESIZE_MARGIN; } + return 0; } + + //update last transmit timestamp, unmark instance + output->last_frame = mm_timestamp(); + output->mark = 0; return 0; } @@ -357,14 +373,14 @@ static int sacn_set(instance* inst, size_t num, channel** c, channel_value* v){ //send packet if required if(mark){ - if(!data->realtime){ - //find output instance data - for(u = 0; u < global_cfg.fd[data->fd_index].universes; u++){ - if(global_cfg.fd[data->fd_index].universe[u].universe == data->uni){ - break; - } + //find output instance data + for(u = 0; u < global_cfg.fd[data->fd_index].universes; u++){ + if(global_cfg.fd[data->fd_index].universe[u].universe == data->uni){ + break; } + } + if(!data->realtime){ frame_delta = mm_timestamp() - global_cfg.fd[data->fd_index].universe[u].last_frame; //check if ratelimiting engaged @@ -376,7 +392,7 @@ static int sacn_set(instance* inst, size_t num, channel** c, channel_value* v){ return 0; } } - sacn_transmit(inst); + sacn_transmit(inst, global_cfg.fd[data->fd_index].universe + u); } return 0; @@ -496,7 +512,19 @@ static void sacn_discovery(size_t fd){ memcpy(pdu.data.data, global_cfg.fd[fd].universe + page * 512, universes * sizeof(uint16_t)); if(sendto(global_cfg.fd[fd].fd, (uint8_t*) &pdu, sizeof(pdu) - (512 - universes) * sizeof(uint16_t), 0, (struct sockaddr*) &discovery_dest, sizeof(discovery_dest)) < 0){ - LOGPF("Failed to output universe discovery frame for interface %" PRIsize_t ": %s", fd, strerror(errno)); + #ifndef _WIN32 + if(errno != EAGAIN){ + LOGPF("Failed to output universe discovery frame for interface %" PRIsize_t ": %s", fd, strerror(errno)); + } + #else + if(WSAGetLastError() != WSAEWOULDBLOCK){ + char* error = NULL; + FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, + NULL, WSAGetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &error, 0, NULL); + LOGPF("Failed to output universe discovery frame for interface %" PRIsize_t ": %s", fd, error); + LocalFree(error); + } + #endif } } } @@ -537,7 +565,7 @@ static int sacn_handle(size_t num, managed_fd* fds){ instance_id.fields.uni = global_cfg.fd[u].universe[c].universe; inst = mm_instance_find(BACKEND_NAME, instance_id.label); if(inst){ - sacn_transmit(inst); + sacn_transmit(inst, global_cfg.fd[u].universe + c); } } |