#include <iostream>
#include <vector>
#include <string>

#include "trick/Executive.hh"
#include "trick/ExecutiveException.hh"
#include "trick/exec_proto.h"
#include "trick/exec_proto.hh"

/* Global singleton pointer to the executive */
extern Trick::Executive * the_exec ;

/**
 * @relates Trick::Executive
 * returns a pointer to the simulation executive
 * @return Executive
 */
Trick::Executive * exec_get_exec_cpp() {
    return ( the_exec ) ;
}

/*********************************************************/
/* These routines are the "C" interface to the executive */
/*********************************************************/

// -------------------------- GET ------------------------

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_attach_debugger
 * C wrapper for Trick::Executive::get_attach_debugger
 */
extern "C" int exec_get_attach_debugger() {
    if ( the_exec != NULL ) {
        return (int)the_exec->get_attach_debugger() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_debugger_command
 * C wrapper for Trick::Executive::get_debugger_command
 */
extern "C" const char * exec_get_debugger_command() {
    if ( the_exec != NULL ) {
        return the_exec->get_debugger_command().c_str() ;
    }
    return NULL ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_enable_freeze
 * C wrapper for Trick::Executive::get_enable_freeze
 */
extern "C" int exec_get_enable_freeze() {
    if ( the_exec != NULL ) {
        return (int)the_exec->get_enable_freeze() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_exec_command
 * C wrapper for Trick::Executive::get_exec_command
 */
extern "C" SIM_COMMAND exec_get_exec_command() {
    if ( the_exec != NULL ) {
        return the_exec->get_exec_command() ;
    }
    return NoCmd ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_freeze_frame
 * C wrapper for Trick::Executive::get_freeze_frame
 */
extern "C" double exec_get_freeze_frame() {
    if ( the_exec != NULL ) {
        return the_exec->get_freeze_frame() ;
    }
    return 0.0 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_freeze_command
 * C wrapper for Trick::Executive::get_freeze_command
 */
extern "C" int exec_get_freeze_command() {
    if ( the_exec != NULL ) {
        return (int)the_exec->get_freeze_command() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_freeze_on_frame_boundary
 * C wrapper for Trick::Executive::get_freeze_on_frame_boundary
 */
extern "C" int exec_get_freeze_on_frame_boundary() {
    if ( the_exec != NULL ) {
        return (int)the_exec->get_freeze_on_frame_boundary() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_freeze_frame_tics
 * C wrapper for Trick::Executive::get_freeze_frame_tics
 */
extern "C" long long exec_get_freeze_frame_tics() {
    if ( the_exec != NULL ) {
        return the_exec->get_freeze_frame_tics() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_freeze_frame_count
 * C wrapper for Trick::Executive::get_freeze_frame_count
 */
extern "C" long long exec_get_freeze_frame_count() {
    if ( the_exec != NULL ) {
        return the_exec->get_freeze_frame_count() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_job_cycle
 * C wrapper for Trick::Executive::get_job_cycle
 */
extern "C" double exec_get_job_cycle(const char * job_name) {

    if ( the_exec != NULL ) {

        std::string job_string ;

        // Add handling for NULL string.
        if ( job_name == NULL ) {
            job_string.clear() ;
        } else {
            job_string = std::string(job_name) ;
        }
        return the_exec->get_job_cycle(job_string) ;
    }
    return -1.0 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_mode
 * C wrapper for Trick::Executive::get_mode
 */
extern "C" SIM_MODE exec_get_mode() {
    if ( the_exec != NULL ) {
        return the_exec->get_mode() ;
    }
    return Initialization ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_num_threads
 * C wrapper for Trick::Executive::get_num_threads
 */
extern "C" unsigned int exec_get_num_threads() {
    if ( the_exec != NULL ) {
        return the_exec->get_num_threads() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_time_tic_value
 * C wrapper for Trick::Executive::get_time_tic_value
 */
extern "C" int exec_get_old_time_tic_value() {
    if ( the_exec != NULL ) {
        return the_exec->get_old_time_tic_value() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_process_id
 * C wrapper for Trick::Executive::get_process_id
 */
extern "C" unsigned int exec_get_process_id() {
    if ( the_exec != NULL ) {
        return the_exec->get_process_id() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_rt_nap
 * C wrapper for Trick::Executive::get_rt_nap
 */
extern "C" int exec_get_rt_nap() {
    if ( the_exec != NULL ) {
        return (int)the_exec->get_rt_nap() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_scheduled_start_index
 * C wrapper for Trick::Executive::get_scheduled_start_index
 */
extern "C" int exec_get_scheduled_start_index() {
    if ( the_exec != NULL ) {
        return the_exec->get_scheduled_start_index() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_sim_time
 * C wrapper for Trick::Executive::get_sim_time
 */
extern "C" double exec_get_sim_time() {
    if ( the_exec != NULL ) {
        return the_exec->get_sim_time() ;
    }
    return -1.0 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_software_frame
 * C wrapper for Trick::Executive::get_software_frame
 */
extern "C" double exec_get_software_frame() {
    if ( the_exec != NULL ) {
        return the_exec->get_software_frame() ;
    }
    return -1.0 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_software_frame_tics
 * C wrapper for Trick::Executive::get_software_frame_tics
 */
extern "C" long long exec_get_software_frame_tics() {
    if ( the_exec != NULL ) {
        return the_exec->get_software_frame_tics() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_frame_count
 * C wrapper for Trick::Executive::get_frame_count
 */
extern "C" long long exec_get_frame_count() {
    if ( the_exec != NULL ) {
        return the_exec->get_frame_count() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_stack_trace
 * C wrapper for Trick::Executive::get_stack_trace
 */
extern "C" int exec_get_stack_trace() {
    if ( the_exec != NULL ) {
        return (int)the_exec->get_stack_trace() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_terminate_time
 * C wrapper for Trick::Executive::get_terminate_time
 */
extern "C" double exec_get_terminate_time() {
    if ( the_exec != NULL ) {
        return the_exec->get_terminate_time() ;
    }
    return -1.0 ;
}

extern "C" double exec_get_thread_amf_cycle_time(unsigned int thread_id) {
    if ( the_exec != NULL ) {
        return the_exec->get_thread_amf_cycle_time(thread_id) ;
    }
    return -1.0 ;
}
/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_time_tic_value
 * C wrapper for Trick::Executive::get_time_tic_value
 */
extern "C" int exec_get_time_tic_value() {
    if ( the_exec != NULL ) {
        return the_exec->get_time_tic_value() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_time_tics
 * C wrapper for Trick::Executive::get_time_tics
 */
extern "C" long long exec_get_time_tics() {
    if ( the_exec != NULL ) {
        return the_exec->get_time_tics() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_freeze_time_tics
 * C wrapper for Trick::Executive::get_freeze_time_tics
 */
extern "C" long long exec_get_freeze_time_tics() {
    if ( the_exec != NULL ) {
        return the_exec->get_freeze_time_tics() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_trap_sigbus
 * C wrapper for Trick::Executive::get_trap_sigbus
 */
extern "C" int exec_get_trap_sigbus() {
    if ( the_exec != NULL ) {
        return (int)the_exec->get_trap_sigbus() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_trap_sigfpe
 * C wrapper for Trick::Executive::get_trap_sigfpe
 */
extern "C" int exec_get_trap_sigfpe() {
    if ( the_exec != NULL ) {
        return (int)the_exec->get_trap_sigfpe() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_trap_sigsegv
 * C wrapper for Trick::Executive::get_trap_sigsegv
 */
extern "C" int exec_get_trap_sigsegv() {
    if ( the_exec != NULL ) {
        return (int)the_exec->get_trap_sigsegv() ;
    }
    return -1 ;
}

// -------------------------- SET ------------------------

/**
@relates Trick::Executive
@copybrief Trick::Executive::set_attach_debugger

@par Python Usage:
@code trick.exec_set_attach_debugger(<on_off>) @endcode

C wrapper for Trick::Executive::set_attach_debugger
 */
extern "C" int exec_set_attach_debugger( int on_off ) {
    if ( the_exec != NULL ) {
        return the_exec->set_attach_debugger((bool)on_off) ;
    }
    return -1 ;
}

/**
@relates Trick::Executive
@copydoc Trick::Executive::set_debugger_command

@par Python Usage:
@code trick.exec_set_debugger_command("<command>") @endcode

C wrapper for Trick::Executive::set_debugger_command
*/
extern "C" int exec_set_debugger_command( const char * command ) {
    if ( the_exec != NULL ) {
        return ( the_exec->set_debugger_command(std::string(command)) ) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_enable_freeze
 * C wrapper for Trick::Executive::set_enable_freeze
 */
extern "C" int exec_set_enable_freeze( int on_off ) {
    if ( the_exec != NULL ) {
        return the_exec->set_enable_freeze((bool)on_off) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_exec_command
 * C wrapper for Trick::Executive::set_exec_command
 */
// TODO:  I don't think we need this function, too dangerous. (Alex 3/2/12)
extern "C" int exec_set_exec_command(SIM_COMMAND in_command) {
    if ( the_exec != NULL ) {
        return the_exec->set_exec_command(in_command) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_freeze_command
 * C wrapper for Trick::Executive::set_freeze_command
 */
extern "C" int exec_set_freeze_command( int on_off ) {
    if ( the_exec != NULL ) {
        return the_exec->set_freeze_command((bool)on_off) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_freeze_on_frame_boundary
 * C wrapper for Trick::Executive::set_freeze_on_frame_boundary
 */
extern "C" int exec_set_freeze_on_frame_boundary( int on_off ) {
    if ( the_exec != NULL ) {
        return the_exec->set_freeze_on_frame_boundary((bool)on_off) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_freeze_frame
 * C wrapper for Trick::Executive::set_freeze_frame
 */
extern "C" int exec_set_freeze_frame(double in_frame) {
    if ( the_exec != NULL ) {
        return the_exec->set_freeze_frame(in_frame) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_rt_nap
 * C wrapper for Trick::Executive::set_rt_nap
 */
extern "C" int exec_set_rt_nap( int on_off ) {
    if ( the_exec != NULL ) {
        return the_exec->set_rt_nap((bool)on_off) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_software_frame
 * C wrapper for Trick::Executive::set_software_frame
 */
extern "C" int exec_set_software_frame(double in_frame) {
    if ( the_exec != NULL ) {
        return the_exec->set_software_frame(in_frame) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_stack_trace
 * C wrapper for Trick::Executive::set_stack_trace
 */
extern "C" int exec_set_stack_trace( int on_off ) {
    if ( the_exec != NULL ) {
        return the_exec->set_stack_trace((bool)on_off) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_terminate_time
 * C wrapper for Trick::Executive::set_terminate_time
 */
extern "C" int exec_set_terminate_time(double time_value) {
    if ( the_exec != NULL ) {
        return the_exec->set_terminate_time(time_value) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_time
 * C wrapper for Trick::Executive::set_time
 */
extern "C" int exec_set_time( double in_time ) {
    if ( the_exec != NULL ) {
        return the_exec->set_time(in_time) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_time_tics
 * C wrapper for Trick::Executive::set_time_tics
 */
extern "C" int exec_set_time_tics( long long in_time_tics ) {
    if ( the_exec != NULL ) {
        return the_exec->set_time_tics(in_time_tics) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_time_tic_value
 * C wrapper for Trick::Executive::set_time_tic_value
 */
extern "C" int exec_set_time_tic_value( int in_time_tics ) {
    if ( the_exec != NULL ) {
        return the_exec->set_time_tic_value(in_time_tics) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_trap_sigbus
 * C wrapper for Trick::Executive::set_trap_sigbus
 */
extern "C" int exec_set_trap_sigbus( int on_off ) {
    if ( the_exec != NULL ) {
        return the_exec->set_trap_sigbus((bool)on_off) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_trap_sigfpe
 * C wrapper for Trick::Executive::set_trap_sigfpe
 */
extern "C" int exec_set_trap_sigfpe( int on_off ) {
    if ( the_exec != NULL ) {
        return the_exec->set_trap_sigfpe((bool)on_off) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_trap_sigsegv
 * C wrapper for Trick::Executive::set_trap_sigsegv
 */
extern "C" int exec_set_trap_sigsegv( int on_off ) {
    if ( the_exec != NULL ) {
        return the_exec->set_trap_sigsegv((bool)on_off) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_job_onoff
 * C wrapper for Trick::Executive::set_job_onoff
 */
extern "C" int exec_set_job_onoff(const char * job_name , int instance , int on) {
    if ( the_exec != NULL ) {
        return the_exec->set_job_onoff( job_name , instance , on) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_sim_object_onoff
 * C wrapper for Trick::Executive::set_sim_object_onoff
 */
extern "C" int exec_set_sim_object_onoff(const char * sim_object_name , int on) {
    if ( the_exec != NULL ) {
        return the_exec->set_sim_object_onoff( sim_object_name , on) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_version_date_tag
 * C wrapper for Trick::Executive::set_version_date_tag
 */
extern "C" int exec_set_version_date_tag(const char * tag) {
    if ( the_exec != NULL ) {
        return the_exec->set_version_date_tag(std::string(tag)) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_build_date
 * C wrapper for Trick::Executive::set_build_date
 */
extern "C" int exec_set_build_date(const char * date) {
    if ( the_exec != NULL ) {
        return the_exec->set_build_date(std::string(date)) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_current_version
 * C wrapper for Trick::Executive::set_current_version
 */
extern "C" int exec_set_current_version(const char * version) {
    if ( the_exec != NULL ) {
        return the_exec->set_current_version(std::string(version)) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_current_version
 * C wrapper for Trick::Executive::set_current_version
 */
extern "C" const char * exec_get_current_version() {
    if ( the_exec != NULL ) {
        return the_exec->get_current_version().c_str() ;
    }
    return NULL ;
}

/**
 * @relates Trick::Executive
 * @userdesc Raise a signal on the main thread to terminate the simuation immediately.
 * This is not typically used by users.  Use exec_terminate instead.
 */
extern "C" void exec_signal_terminate() {
    // ret_code = 0 for this call.
    if ( the_exec != NULL ) {
        pthread_kill( the_exec->get_pthread_id(0) , SIGUSR1 ) ;
    }
}

/**
 * @relates Trick::Executive
 * @userdesc C wrapper to transition to Shutdown mode.  Throws Trick::ExecutiveException exception.  This version
 * @ is backwards compatible
 * @param file_name - file name of the caller to exec_terminate
 * @param error - error message to print
 */
extern "C" int exec_terminate(const char *file_name , const char *error ) {
    throw Trick::ExecutiveException(0 , file_name , 0 , error) ;
    // never reached
    return 0 ;
}

/**
 * @relates Trick::Executive
 * @userdesc C wrapper to transition to Shutdown mode.  Throws Trick::ExecutiveException exception
 * @param ret_code - return code to pass back to caller of init() or loop() ;
 * @param file_name - file name of the caller to exec_terminate
 * @param line - line number where exception occurred
 * @param error - error message to print
 * @return ret_code (but never reached)
 */
extern "C" int exec_terminate_with_return(int ret_code , const char *file_name , int line , const char *error ) {
    throw Trick::ExecutiveException(ret_code , file_name , line , error) ;
    // never reached
    return ret_code ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::freeze
 * C wrapper for Trick::Executive::freeze
 */
extern "C" int exec_freeze() {
    if ( the_exec != NULL ) {
        return the_exec->freeze() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::run
 * C wrapper for Trick::Executive::run
 */
extern "C" int exec_run() {
    if ( the_exec != NULL ) {
        return the_exec->run() ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
   @userdesc C wrapper to add an instrumentation job before all initialization, integration,
    scheduled, shutdown, top_of_frame & end_of_frame jobs.
 * Calls Trick::Executive::instrument_job_before(job_name, "", NULL)
 * @param job_name - name of the job to instrument.  Name follows convention in RUN_<dir>/S_job_execution
 * @return number of times the job was inserted
 */
extern "C" int exec_instrument_before(const char * job_name) {
    if ( the_exec != NULL ) {
        return the_exec->instrument_job_before(job_name) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
   @userdesc C wrapper to add an instrumentation job after all initialization, integration,
    scheduled, shutdown, top_of_frame & end_of_frame jobs.
 * Calls Trick::Executive::instrument_job_after(job_name, "", NULL)
 * @param job_name - name of the job to instrument.  Name follows convention in RUN_<dir>/S_job_execution
 * @return number of times the job was inserted
 */
extern "C" int exec_instrument_after(const char * job_name) {
    if ( the_exec != NULL ) {
        return the_exec->instrument_job_after(job_name) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
   @userdesc C wrapper to remove all jobs with name job_name from all job queues.
 * Calls Trick::Executive::instrument_job_remove(job_name, NULL)
 * @param job_name - name of the job to remove.  Name follows convention in RUN_<dir>/S_job_execution
 * @return always 0
 */
extern "C" int exec_instrument_remove(const char * job_name) {
    if ( the_exec != NULL ) {
        return the_exec->instrument_job_remove(job_name) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_thread_enabled
 * C wrapper for Trick::Executive::set_thread_enabled
 */
extern "C" int exec_set_thread_enabled( unsigned int thread_id , int yes_no ) {
    if ( the_exec != NULL ) {
        return the_exec->set_thread_enabled(thread_id , yes_no) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_thread_amf_cycle_time
 * C wrapper for Trick::Executive::set_thread_amf_cycle_time
 */
extern "C" int exec_set_thread_amf_cycle_time( unsigned int thread_id , double cycle_time ) {
    return exec_set_thread_async_cycle_time(thread_id , cycle_time) ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_thread_async_cycle_time
 * C wrapper for Trick::Executive::set_thread_async_cycle_time
 */
extern "C" int exec_set_thread_async_cycle_time( unsigned int thread_id , double cycle_time ) {
    if ( the_exec != NULL ) {
        return the_exec->set_thread_amf_cycle_time(thread_id , cycle_time) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_thread_async_wait
 * C wrapper for Trick::Executive::set_thread_async_wait
 */
extern "C" int exec_set_thread_async_wait( unsigned int thread_id , int yes_no ) {
    if ( the_exec != NULL ) {
        return the_exec->set_thread_async_wait(thread_id , (bool)yes_no) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_thread_rt_semaphores
 * C wrapper for Trick::Executive::set_thread_rt_semaphores
 */
extern "C" int exec_set_thread_rt_semaphores( unsigned int thread_id , int yes_no ) {
    if ( the_exec != NULL ) {
        return the_exec->set_thread_rt_semaphores(thread_id , (bool)yes_no) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_thread_cpu_affinity
 * C wrapper for Trick::Executive::set_thread_cpu_affinity
 */
extern "C" int exec_set_thread_cpu_affinity(unsigned int thread_id , int cpu_num) {
    if ( the_exec != NULL ) {
        return the_exec->set_thread_cpu_affinity(thread_id, cpu_num) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_thread_priority
 * C wrapper for Trick::Executive::set_thread_priority
 */
extern "C" int exec_set_thread_priority(unsigned int thread_id , unsigned int req_priority) {
    if ( the_exec != NULL ) {
        return the_exec->set_thread_priority(thread_id, req_priority) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_thread_process_type
 * C wrapper for Trick::Executive::set_thread_process_type
 */
extern "C" int exec_set_thread_process_type( unsigned int thread_id , int process_type ) {
    if ( the_exec != NULL ) {
        return the_exec->set_thread_process_type(thread_id , process_type) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_job_cycle
 * C wrapper for Trick::Executive::set_job_cycle
 */
extern "C" int exec_set_job_cycle(const char * job_name, int instance, double in_cycle) {

    if ( the_exec != NULL ) {
        std::string job_string ;

        // Add handling for NULL string.
        if ( job_name == NULL ) {
            job_string.clear() ;
        } else {
            job_string = std::string(job_name) ;
        }
        return the_exec->set_job_cycle(job_string, instance, in_cycle) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::set_lock_memory
 * C wrapper for Trick::Executive::set_lock_memory
 */
extern "C" int exec_set_lock_memory(int yes_no) {
    if ( the_exec != NULL ) {
        return the_exec->set_lock_memory((bool)yes_no) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::add_depends_on_job
 * C wrapper for Trick::Executive::add_depends_on_job
 */
extern "C" int exec_add_scheduled_job_class(const char * in_name) {
    if ( the_exec != NULL ) {
        return the_exec->add_scheduled_job_class(std::string(in_name)) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::add_depends_on_job
 * C wrapper for Trick::Executive::add_depends_on_job
 */
extern "C" int exec_add_depends_on_job(const char * target_job_string , unsigned int t_instance , const char * depend_job_string , unsigned int d_instance ) {
    if ( the_exec != NULL ) {
        return the_exec->add_depends_on_job(std::string(target_job_string) , t_instance , std::string(depend_job_string) , d_instance ) ;
    }
    return -1 ;
}

/*********************************************************/
/* These are executive access functions that stay C++    */

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::add_sim_object
 * C wrapper for Trick::Executive::add_sim_object
 */
int exec_add_sim_object( Trick::SimObject * in_object , const char * in_name ) {
    if ( the_exec != NULL ) {
        return the_exec->add_sim_object(in_object , in_name) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::add_sim_object
 * C wrapper for Trick::Executive::add_sim_object
 */
int exec_remove_sim_object( Trick::SimObject * in_object ) {
    if ( the_exec != NULL ) {
        return the_exec->delete_sim_object(in_object) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_sim_objects
 * Wrapper for Trick::Executive::get_sim_objects
 */
int exec_get_sim_objects(std::vector<Trick::SimObject *>& in_sim_objects ) {
    if ( the_exec != NULL ) {
        return the_exec->get_sim_objects(in_sim_objects) ;
    }
    return -1 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_job
 * Wrapper for Trick::Executive::get_job
 */
Trick::JobData * exec_get_job(const char * job_name , unsigned int j_instance) {
    if ( the_exec != NULL ) {
        return the_exec->get_job(std::string(job_name), j_instance) ;
    }
    return NULL ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_curr_job
 * Wrapper for Trick::Executive::get_curr_job
 */
Trick::JobData * exec_get_curr_job() {
    if ( the_exec != NULL ) {
        return the_exec->get_curr_job() ;
    }
    return NULL ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_thread
 * C wrapper for Trick::Executive::get_thread
 */
Trick::Threads * exec_get_thread( unsigned int thread_id ) {
    if ( the_exec != NULL ) {
        return the_exec->get_thread(thread_id) ;
    }
    return NULL ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::get_all_jobs_vector
 * Wrapper for Trick::Executive::get_all_jobs_vector
 */
int exec_get_all_jobs_vector(std::vector<Trick::JobData *> & in_jobs_vector) {
    if ( the_exec != NULL ) {
        return the_exec->get_all_jobs_vector(in_jobs_vector) ;
    }
    return 0 ;
}

/**
 * @relates Trick::Executive
 * @copydoc Trick::Executive::register_scheduler
 * Wrapper for Trick::Executive::register_scheduler
 */
int exec_register_scheduler( Trick::Scheduler * scheduler ) {
    if ( the_exec != NULL ) {
        return the_exec->register_scheduler(scheduler) ;
    }
    return -1 ;
}