Copy of old lessons from afs webpage

2026-02-06 10:10:27 +01:00
commit 80df91d0df
43 changed files with 6945 additions and 0 deletions
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+struct epicsPV_s {
+    chid channel;
+    union {
+        void* data;
+        struct dbr_time_char* CHAR;
+        struct dbr_time_short* SHORT;
+        struct dbr_time_long* LONG;
+        struct dbr_time_float* FLOAT;
+        struct dbr_time_double* DOUBLE;
+        struct dbr_time_enum* ENUM;
+        struct dbr_time_string* STRING;
+    };
+    union {
+        void* info;
+        struct dbr_ctrl_char* info_CHAR;
+        struct dbr_ctrl_short* info_SHORT;
+        struct dbr_ctrl_long* info_LONG;
+        struct dbr_ctrl_float* info_FLOAT;
+        struct dbr_ctrl_double* info_DOUBLE;
+        struct dbr_ctrl_enum* info_ENUM;
+    };
+    const char* units;
+    int precision;
+    caDatatype usedDatatype;
+    caDatatype requestedDatatype;
+    int status;
+    char stringrep[40];
+    PVconnectionCallback connectionCallback;
+    void* userarg;
+};
+
+/* don't use cagetList directly, use caget */
+int cagetList(double timeoutSec, epicsPV pv1, ...);
+
+extern const char* PVdataTypeStrings[9];
+extern const char* PVconnectionStateStrings [4];
+
+#define PV_WITHUNITS 1