src/gromacs/fileio/timecontrol.cpp

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  37 #include "gmxpre.h"
  38
  39 #include "timecontrol.h"
  40
  41 #include "thread_mpi/threads.h"
  42
  43 #include "gromacs/utility/basedefinitions.h"
  44 #include "gromacs/utility/fatalerror.h"
  45 #include "gromacs/utility/real.h"
  46
  47 /* The source code in this file should be thread-safe.
  48          Please keep it that way. */
  49
  50 /* Globals for trajectory input */
  51 typedef struct {
  52     real     t;
  53     gmx_bool bSet;
  54 } t_timecontrol;
  55
  56 static t_timecontrol       timecontrol[TNR] = {
  57     { 0, FALSE },
  58     { 0, FALSE },
  59     { 0, FALSE }
  60 };
  61
  62 static tMPI_Thread_mutex_t tc_mutex = TMPI_THREAD_MUTEX_INITIALIZER;
  63
  64 gmx_bool bTimeSet(int tcontrol)
  65 {
  66     gmx_bool ret;
  67
  68     tMPI_Thread_mutex_lock(&tc_mutex);
  69     range_check(tcontrol, 0, TNR);
  70     ret = timecontrol[tcontrol].bSet;
  71     tMPI_Thread_mutex_unlock(&tc_mutex);
  72
  73     return ret;
  74 }
  75
  76 real rTimeValue(int tcontrol)
  77 {
  78     real ret;
  79
  80     tMPI_Thread_mutex_lock(&tc_mutex);
  81     range_check(tcontrol, 0, TNR);
  82     ret = timecontrol[tcontrol].t;
  83     tMPI_Thread_mutex_unlock(&tc_mutex);
  84     return ret;
  85 }
  86
  87 void setTimeValue(int tcontrol, real value)
  88 {
  89     tMPI_Thread_mutex_lock(&tc_mutex);
  90     range_check(tcontrol, 0, TNR);
  91     timecontrol[tcontrol].t    = value;
  92     timecontrol[tcontrol].bSet = TRUE;
  93     tMPI_Thread_mutex_unlock(&tc_mutex);
  94 }