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19025d77ad
Reorganized. Created a new top level include directory that will hold all of Trick's header files. Moved all of the Trick headers to this directory. Created a libexec directory that holds all of the executables that users don't need to execute directly. Changed all of the executables remaining in bin to start with "trick-". In the sim_services directories changed all source files to find the Trick headers in their new location. Since all of the include files are gone in sim_services, removed the src directories as well, moving all of the source files up a level. Moved the makefiles, docs, man, and other architecture independent files into a top level share directory. Renamed lib_${TRICK_HOST_CPU} to lib64 or lib depending on the platform we're currently on.
refs #63
283 lines
10 KiB
C++
283 lines
10 KiB
C++
/*
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PURPOSE: (Allows clients to get and set Trick parameters)
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PROGRAMMERS: (((Alex Lin) (NASA) (8/06) (--)))
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*/
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#include <iostream>
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#include <pthread.h>
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#include "trick/VariableServer.hh"
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#include "trick/variable_server_message_types.h"
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#include "trick/parameter_types.h"
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#include "trick/bitfield_proto.h"
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#include "trick/trick_byteswap.h"
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#include "trick/tc_proto.h"
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#include "trick/message_proto.h"
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#include "trick/message_type.h"
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extern "C" {
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void *trick_bswap_buffer(void *out, void *in, ATTRIBUTES * attr, int tofrom) ;
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}
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#define MAX_MSG_LEN 8192
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int Trick::VariableServerThread::write_binary_data( int Start, char *buf1, int PacketNum ) {
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int i;
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int ret ;
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int HeaderSize, MessageSize;
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int NumVariablesProcessed;
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unsigned int msg_type , offset, len ;
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unsigned int size ;
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unsigned int swap_int ;
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char * address = 0 ;
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char* param_name;
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//remove warning for unused PacketNum... to be deleted.
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(void)PacketNum ;
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/* start the offset 4 bytes into the message, we'll subtract the sizeof offset at the end */
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offset = sizeof(msg_type) + sizeof(offset) ;
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/* if we are here the msg_type is good, so send a 0, swapped or not 0 is still 0 */
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msg_type = VS_VAR_LIST ;
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memcpy(buf1, &msg_type , sizeof(msg_type)) ;
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HeaderSize = sizeof(msg_type);
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offset += sizeof(unsigned int) ;
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HeaderSize += sizeof(unsigned int);
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for (i = Start; i < (int)vars.size() ; i++) {
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// data to send was copied to buffer in copy_sim_data
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address = (char *)vars[i]->buffer_out;
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size = vars[i]->size ;
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param_name = vars[i]->ref->reference;
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len = strlen(param_name) ;
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// when var_binary_nonames, do not put the variable names into the message to be sent
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if (binary_data_nonames) {
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MessageSize = sizeof(int) + sizeof(size) + size ;
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} else {
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MessageSize = sizeof(len) + len + sizeof(int) + sizeof(size) + size ;
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}
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/* make sure this message will fit in a packet by itself */
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if ( (HeaderSize + MessageSize) > MAX_MSG_LEN ) {
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message_publish(MSG_WARNING, "%p Variable Server buffer[%d] too small (need %d) for symbol %s, SKIPPING IT.\n",
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&connection, MAX_MSG_LEN,
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(int)(HeaderSize + MessageSize),
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vars[i]->ref->reference );
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continue;
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}
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if ( (offset + MessageSize) < MAX_MSG_LEN ) {
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if (byteswap) {
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if (!binary_data_nonames) {
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swap_int = trick_byteswap_int((int)len) ;
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memcpy(&buf1[offset] , &swap_int , sizeof(len)) ;
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offset += sizeof(len) ;
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memcpy(&buf1[offset] , param_name , (size_t)len) ;
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offset += len ;
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}
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swap_int = trick_byteswap_int(vars[i]->ref->attr->type) ;
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memcpy(&buf1[offset] , &swap_int , sizeof(int)) ;
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offset += sizeof(int) ;
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swap_int = trick_byteswap_int((int)size) ;
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memcpy(&buf1[offset] , &swap_int , sizeof(size)) ;
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offset += sizeof(size) ;
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/* TODO: There is a bug here, this call will want to swap the entire buffer, we may not have the whole buffer */
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trick_bswap_buffer(&buf1[offset], address, vars[i]->ref->attr, 1);
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offset += size ;
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}
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else {
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int temp_i ;
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unsigned int temp_ui ;
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if (!binary_data_nonames) {
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memcpy(&buf1[offset] , &len , sizeof(len)) ;
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offset += sizeof(len) ;
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memcpy(&buf1[offset] , param_name , (size_t)len) ;
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offset += len ;
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}
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memcpy(&buf1[offset] , &vars[i]->ref->attr->type , sizeof(int)) ;
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offset += sizeof(int) ;
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memcpy(&buf1[offset] , &size , sizeof(size)) ;
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offset += sizeof(size) ;
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switch ( vars[i]->ref->attr->type ) {
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case TRICK_BITFIELD:
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temp_i = GET_BITFIELD(address , vars[i]->ref->attr->size ,
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vars[i]->ref->attr->index[0].start, vars[i]->ref->attr->index[0].size) ;
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memcpy(&buf1[offset] , &temp_i , (size_t)size) ;
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break ;
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case TRICK_UNSIGNED_BITFIELD:
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temp_ui = GET_UNSIGNED_BITFIELD(address , vars[i]->ref->attr->size ,
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vars[i]->ref->attr->index[0].start, vars[i]->ref->attr->index[0].size) ;
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memcpy(&buf1[offset] , &temp_ui , (size_t)size) ;
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break ;
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case TRICK_NUMBER_OF_TYPES:
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// TRICK_NUMBER_OF_TYPES is an error case
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temp_i = 0 ;
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memcpy(&buf1[offset] , &temp_i , (size_t)size) ;
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break ;
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default:
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memcpy(&buf1[offset] , address , (size_t)size) ;
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break ;
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}
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offset += size ;
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}
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}
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else {
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/* indicate that we're over the maximum size */
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if (debug >= 2) {
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message_publish(MSG_DEBUG, "%p tag=<%s> var_server buffer[%d] too small (need %d), sending multiple binary packets.\n",
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&connection, connection.client_tag, MAX_MSG_LEN,
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(int)(offset + MessageSize) );
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}
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break ;
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}
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}
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/* adjust the header with the correct information reflecting what has been accomplished */
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NumVariablesProcessed = i - Start;
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offset -= sizeof(offset) ;
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if (byteswap) {
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swap_int = trick_byteswap_int((int)offset) ;
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memcpy(buf1 + sizeof(msg_type) , &swap_int , sizeof(offset)) ;
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swap_int = trick_byteswap_int( NumVariablesProcessed ) ;
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memcpy( buf1 + sizeof(msg_type) + sizeof(offset), &swap_int , sizeof(swap_int)) ;
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}
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else {
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memcpy(buf1 + sizeof(msg_type) , &offset , sizeof(offset)) ;
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memcpy( buf1 + sizeof(msg_type) + sizeof(offset), &NumVariablesProcessed , sizeof( NumVariablesProcessed )) ;
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}
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if (debug >= 2) {
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message_publish(MSG_DEBUG, "%p tag=<%s> var_server sending %u binary bytes containing %d variables.\n", &connection,
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connection.client_tag, (unsigned int)(offset + sizeof(offset)), NumVariablesProcessed);
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}
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len = offset + sizeof(msg_type) ;
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ret = tc_write(&connection, (char *) buf1, len);
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if ( ret != (int)len ) {
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return(-1) ;
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}
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/* return the index to the next symbol to send or V->num_vars if all done */
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return i;
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}
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int Trick::VariableServerThread::write_data() {
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int ret;
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unsigned int i ;
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char buf1[ MAX_MSG_LEN ];
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int len ;
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// do not send anything when there are no variables!
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if ( vars.size() == 0 or packets_copied == 0 ) {
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return(0);
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}
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/* Acquire sole access to vars[ii]->buffer_in. */
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if ( var_data_staged and pthread_mutex_trylock(©_mutex) == 0 ) {
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unsigned int ii;
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void * temp_p;
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// Swap buffer_in and buffer_out for each vars[ii].
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for ( ii = 0 ; ii < vars.size() ; ii++ ) {
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temp_p = vars[ii]->buffer_in;
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vars[ii]->buffer_in = vars[ii]->buffer_out;
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vars[ii]->buffer_out = temp_p;
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}
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var_data_staged = false;
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/* Relinquish sole access to vars[ii]->buffer_in. */
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pthread_mutex_unlock(©_mutex) ;
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if (binary_data) {
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int Index = 0;
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int PacketNumber = 0;
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do {
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ret = write_binary_data( Index, buf1, PacketNumber );
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if ( ret >= 0 ) {
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Index = ret ;
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} else {
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return(-1) ;
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}
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PacketNumber++;
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} while( Index < (int)vars.size() );
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} else { /* ascii mode */
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char val[MAX_MSG_LEN];
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sprintf(buf1, "0\t") ;
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for (i = 0; i < vars.size(); i++) {
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ret = vs_format_ascii( vars[i] , val);
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if (ret < 0) {
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message_publish(MSG_WARNING, "%p Variable Server string buffer[%d] too small for symbol %s, TRUNCATED IT.\n",
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&connection, MAX_MSG_LEN, vars[i]->ref->reference );
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}
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/* make sure this message will fit in a packet by itself */
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if( strlen( val ) + 2 > MAX_MSG_LEN ) {
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message_publish(MSG_WARNING, "%p Variable Server buffer[%d] too small for symbol %s, TRUNCATED IT.\n",
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&connection, MAX_MSG_LEN, vars[i]->ref->reference );
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val[MAX_MSG_LEN - 1] = '\0';
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}
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len = strlen(buf1) ;
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/* make sure there is space for the next tab or next newline and null */
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if( len + strlen( val ) + 2 > MAX_MSG_LEN ) {
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if (debug >= 2) {
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message_publish(MSG_DEBUG, "%p tag=<%s> var_server sending %d ascii bytes:",
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&connection, connection.client_tag, (int)strlen(buf1)) ;
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message_publish(MSG_NORMAL, "%s\n", buf1);
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}
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ret = tc_write(&connection, (char *) buf1, len);
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if ( ret != len ) {
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return(-1) ;
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}
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buf1[0] = '\0';
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}
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strcat(buf1, val);
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strcat(buf1, "\t");
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}
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len = strlen(buf1) ;
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if ( len > 0 ) {
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buf1[ strlen(buf1) - 1 ] = '\n';
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if (debug >= 2) {
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message_publish(MSG_DEBUG, "%p tag=<%s> var_server sending %d ascii bytes:",
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&connection, connection.client_tag, (int)strlen(buf1)) ;
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message_publish(MSG_NORMAL, "%s\n", buf1);
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}
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ret = tc_write(&connection, (char *) buf1, (int)strlen(buf1));
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if ( ret != (int)strlen(buf1) ) {
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return(-1) ;
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}
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}
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}
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}
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return (0);
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}
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