*** empty log message ***

tecs/dlog.h

@@ -0,0 +1,49 @@
+#include <time.h>
+
+#define DLOG_MAX_SET 32
+
+typedef struct {
+  time_t last, start;
+  float version, undef;
+  int period, headsize, fsize, nset, nlen;
+  int fd, pos;
+  char name[128];
+} DlogSet;
+
+
+int DlogOpen(DlogSet *dset, char *name, int write);
+/* open existing dlog set */
+
+int DlogCreate(DlogSet *dset, char *name, time_t start, int nset, int nlen, int period, float undef);
+/* create new dlog file */
+
+int DlogPut(DlogSet *dset, time_t time, int nset, float val[]);
+/* put values to dlog set */
+
+int DlogGet(DlogSet *dset, int iset, int nmax, double *starttime, float *x, float *y);
+/* get one dataset from dlog set
+
+   iset is the dataset to be returned
+   nmax is the maximal number of points to be returned
+   x, y: the data (arrays declared with at least nmax elements)
+
+   on success, the return value is the effective length of returned data
+*/
+
+int DlogGetMany(DlogSet *dset, int nset, int nmax, double *starttime, float x[], float y[], int index[]);
+/* get many datasets from dlog set
+
+   nset is the nember of datasets to be returned
+   nmax is the maximal number of points to be returned
+   x, y: the data, one dataset after an other (arrays declared with at least nmax elements)
+   index must be an array of at least nset elements.
+     it returns the start indices in x[] and y[] of the data sets.
+
+   on success, the return value is the effective length of returned data
+*/
+
+int DlogUpd(DlogSet *dset);
+/* update pointer */
+
+int DlogClose(DlogSet *dset);
+/* close dlog set */