started working on aqhome-data.

this will be the data daemon storing datapoints, accessable via IPC.

apps/0BUILD

@@ -7,6 +7,7 @@
     aqhome-tool
     aqhome-mqttlog
     aqhome-storage
+    aqhome-data
   </subdirs>
 
 </gwbuild>

apps/aqhome-data/0BUILD

@@ -0,0 +1,76 @@
+<?xml?>
+
+<gwbuild>
+
+  <target type="Program" name="aqhome-storage" install="$(bindir)" >
+
+    <includes type="c" >
+      $(gwenhywfar_cflags)
+      -I$(topsrcdir)
+      -I$(topbuilddir)
+      -I$(builddir)
+      -I$(srcdir)
+    </includes>
+  
+    <includes type="tm2" >
+      --include=$(builddir)
+      --include=$(srcdir)
+    </includes>
+
+    <setVar name="local/cflags">$(visibility_cflags)</setVar>
+
+    <setVar name="tm2flags" >
+    </setVar>
+
+    <setVar name="local/typefiles" >
+    </setVar>
+  
+    <setVar name="local/built_sources" >
+    </setVar>
+  
+    <setVar name="local/built_headers_pub">
+    </setVar>
+  
+    <setVar name="local/built_headers_priv" >
+    </setVar>
+
+    <headers dist="true" >
+      aqhome_data.h
+      aqhome_data_p.h
+      fini.h
+      init.h
+      loop.h
+    </headers>
+  
+    <sources>
+      $(local/typefiles)
+      
+      aqhome_data.c
+      fini.c
+      init.c
+      loop.c
+      main.c
+    </sources>
+
+    <useTargets>
+      aqhome
+    </useTargets>
+
+    <libraries>
+      $(gwenhywfar_libs)
+    </libraries>
+
+    <subdirs>
+    </subdirs>
+
+
+    <extradist>
+    </extradist>
+
+
+  </target>
+
+
+</gwbuild>
+
+

apps/aqhome-data/aqhome_data.c

@@ -0,0 +1,117 @@
+/****************************************************************************
+ * This file is part of the project AqHome.
+ * AqHome (c) by 2023 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+
+#include "./aqhome_data_p.h"
+
+#include <gwenhywfar/misc.h>
+#include <gwenhywfar/debug.h>
+
+
+
+
+
+AQHOME_DATA *AqHomeData_new()
+{
+  AQHOME_DATA *aqh;
+
+  GWEN_NEW_OBJECT(AQHOME_DATA, aqh);
+  aqh->storageMutex=GWEN_Mutex_new();
+
+  return aqh;
+}
+
+
+
+void AqHomeData_free(AQHOME_DATA *aqh)
+{
+  if (aqh) {
+    GWEN_Mutex_free(aqh->storageMutex);
+
+    GWEN_MsgEndpoint_free(aqh->ipcdEndpoint);
+    GWEN_DB_Group_free(aqh->dbArgs);
+    AQH_Storage_free(aqh->storage);
+    free(aqh->pidFile);
+
+    GWEN_FREE_OBJECT(aqh);
+  }
+}
+
+
+
+GWEN_MSG_ENDPOINT *AqHomeData_GetIpcdEndpoint(const AQHOME_DATA *aqh)
+{
+  return aqh?(aqh->ipcdEndpoint):NULL;
+}
+
+
+
+GWEN_DB_NODE *AqHomeData_GetDbArgs(const AQHOME_DATA *aqh)
+{
+  return aqh?(aqh->dbArgs):NULL;
+}
+
+
+
+AQH_STORAGE *AqHomeData_GetStorage(const AQHOME_DATA *aqh)
+{
+  return aqh?(aqh->storage):NULL;
+}
+
+
+
+const char *AqHomeData_GetPidFile(const AQHOME_DATA *aqh)
+{
+  return aqh?aqh->pidFile:NULL;
+}
+
+
+
+int AqHomeData_GetTimeout(const AQHOME_DATA *aqh)
+{
+  return aqh?aqh->timeout:0;
+}
+
+
+
+int AqHomeData_LockStorage(AQHOME_DATA *aqh)
+{
+  int rv;
+
+  rv=GWEN_Mutex_Lock(aqh->storageMutex);
+  if (rv<0) {
+    DBG_ERROR(AQH_LOGDOMAIN, "Error obtaining lock on storage mutex");
+    return rv;
+  }
+  return rv;
+}
+
+
+
+int AqHomeData_UnlockStorage(AQHOME_DATA *aqh)
+{
+  int rv;
+
+  rv=GWEN_Mutex_Unlock(aqh->storageMutex);
+  if (rv<0) {
+    DBG_ERROR(AQH_LOGDOMAIN, "Error releasing lock on storage mutex");
+    return rv;
+  }
+  return rv;
+}
+
+
+
+
+
+
+

apps/aqhome-data/aqhome_data.h

@@ -0,0 +1,42 @@
+/****************************************************************************
+ * This file is part of the project AqHome.
+ * AqHome (c) by 2023 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifndef AQHOME_DATA_H
+#define AQHOME_DATA_H
+
+
+#include "aqhome/data/storage.h"
+
+#include <gwenhywfar/endpoint.h>
+
+
+
+typedef struct AQHOME_DATA AQHOME_DATA;
+
+
+AQHOME_DATA *AqHomeData_new();
+void AqHomeData_free(AQHOME_DATA *aqh);
+
+GWEN_MSG_ENDPOINT *AqHomeData_GetIpcdEndpoint(const AQHOME_DATA *aqh);
+
+GWEN_DB_NODE *AqHomeData_GetDbArgs(const AQHOME_DATA *aqh);
+
+AQH_STORAGE *AqHomeData_GetStorage(const AQHOME_DATA *aqh);
+
+const char *AqHomeData_GetPidFile(const AQHOME_DATA *aqh);
+
+int AqHomeData_GetTimeout(const AQHOME_DATA *aqh);
+
+int AqHomeData_LockStorage(AQHOME_DATA *aqh);
+int AqHomeData_UnlockStorage(AQHOME_DATA *aqh);
+
+
+
+
+#endif
+

apps/aqhome-data/aqhome_data_p.h

@@ -0,0 +1,43 @@
+/****************************************************************************
+ * This file is part of the project AqHome.
+ * AqHome (c) by 2023 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifndef AQHOME_DATA_P_H
+#define AQHOME_DATA_P_H
+
+
+#include "./aqhome_data.h"
+
+#include <gwenhywfar/mutex.h>
+
+
+#define AQHOME_DATA_DEFAULT_PIDFILE           "/var/run/aqhome-data.pid"
+#define AQHOME_DATA_DEFAULT_DATADIR           "/var/lib/aqhome-data/data"
+#define AQHOME_DATA_DEFAULT_STATEFILE         "/var/lib/aqhome-data/statefile"
+
+#define AQHOME_DATA_DEFAULT_IPC_PORT          45456
+
+
+
+struct AQHOME_DATA {
+  GWEN_MSG_ENDPOINT *ipcdEndpoint;
+
+  GWEN_DB_NODE *dbArgs;
+
+  AQH_STORAGE *storage;
+
+  char *pidFile;
+
+  int timeout;   /* timeout for run e.g. inside valgrind */
+
+  GWEN_MUTEX *storageMutex;
+
+};
+
+
+#endif
+

apps/aqhome-data/fini.c

@@ -0,0 +1,79 @@
+/****************************************************************************
+ * This file is part of the project AqHome.
+ * AqHome (c) by 2023 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+
+#include "./fini.h"
+#include "./aqhome_data_p.h"
+
+#include <gwenhywfar/gwenhywfar.h>
+#include <gwenhywfar/args.h>
+#include <gwenhywfar/debug.h>
+#include <gwenhywfar/endpoint_tcpd.h>
+
+#include <unistd.h>
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * defines
+ * ------------------------------------------------------------------------------------------------
+ */
+
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * forward declarations
+ * ------------------------------------------------------------------------------------------------
+ */
+
+static void _disconnectTree(GWEN_MSG_ENDPOINT *ep);
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * implementations
+ * ------------------------------------------------------------------------------------------------
+ */
+
+void AqHomeData_Fini(AQHOME_DATA *aqh)
+{
+  if (aqh) {
+    if (aqh->ipcdEndpoint) {
+      _disconnectTree(aqh->ipcdEndpoint);
+      GWEN_MsgEndpoint_Disconnect(aqh->ipcdEndpoint);
+    }
+    GWEN_MsgEndpoint_free(aqh->ipcdEndpoint);
+
+    if (aqh->pidFile)
+      remove(aqh->pidFile);
+  }
+}
+
+
+
+void _disconnectTree(GWEN_MSG_ENDPOINT *ep)
+{
+  GWEN_MSG_ENDPOINT *epChild;
+
+  epChild=GWEN_MsgEndpoint_Tree2_GetFirstChild(ep);
+  while(epChild) {
+    _disconnectTree(epChild);
+    epChild=GWEN_MsgEndpoint_Tree2_GetNext(epChild);
+  } /* while */
+
+  GWEN_MsgEndpoint_Disconnect(ep);
+}
+
+
+
+

apps/aqhome-data/fini.h

@@ -0,0 +1,23 @@
+/****************************************************************************
+ * This file is part of the project AqHome.
+ * AqHome (c) by 2023 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifndef AQHOME_DATA_FINI_H
+#define AQHOME_DATA_FINI_H
+
+
+#include "./aqhome_data.h"
+
+
+
+void AqHomeData_Fini(AQHOME_DATA *aqh);
+
+
+
+#endif
+
+

apps/aqhome-data/init.c

@@ -0,0 +1,330 @@
+/****************************************************************************
+ * This file is part of the project AqHome.
+ * AqHome (c) by 2023 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+
+#include "./init.h"
+#include "./aqhome_data_p.h"
+
+#include "aqhome/ipc/endpoint_ipc.h"
+
+#include <gwenhywfar/gwenhywfar.h>
+#include <gwenhywfar/args.h>
+#include <gwenhywfar/debug.h>
+#include <gwenhywfar/endpoint_tcpd.h>
+#include <gwenhywfar/endpoint_msgio.h>
+#include <gwenhywfar/directory.h>
+
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <time.h>
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * defines
+ * ------------------------------------------------------------------------------------------------
+ */
+
+//#define I18N(msg) msg
+#define I18S(msg) msg
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * forward declarations
+ * ------------------------------------------------------------------------------------------------
+ */
+
+static int _setupStorage(AQHOME_DATA *aqh, GWEN_DB_NODE *dbArgs);
+
+static void _setupIpc(AQHOME_DATA *aqh, GWEN_DB_NODE *dbArgs);
+
+static GWEN_MSG_ENDPOINT *_acceptIpcFn(GWEN_MSG_ENDPOINT *ep, GWEN_SOCKET *sk, const GWEN_INETADDRESS *addr, void *data);
+
+static int _readArgs(int argc, char **argv, GWEN_DB_NODE *dbArgs);
+static int _createPidFile(const char *pidFilename);
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * implementations
+ * ------------------------------------------------------------------------------------------------
+ */
+
+int AqHomeData_Init(AQHOME_DATA *aqh, int argc, char **argv)
+{
+  GWEN_DB_NODE *dbArgs;
+  int rv;
+  const char *s;
+
+  dbArgs=GWEN_DB_Group_new("args");
+  rv=_readArgs(argc, argv, dbArgs);
+  if (rv<0) {
+    DBG_ERROR(NULL, "Error reading args (%d)", rv);
+    return rv;
+  }
+  aqh->dbArgs=dbArgs;
+
+  aqh->timeout=GWEN_DB_GetIntValue(dbArgs, "timeout", 0, 0);
+
+  s=GWEN_DB_GetCharValue(dbArgs, "pidfile", 0, AQHOME_DATA_DEFAULT_PIDFILE);
+  if (s && *s) {
+    free(aqh->pidFile);
+    aqh->pidFile=strdup(s);
+    rv=_createPidFile(s);
+    if (rv<0) {
+      DBG_ERROR(NULL, "Error creating PID file (%d)", rv);
+      return rv;
+    }
+  }
+
+  rv=_setupStorage(aqh, dbArgs);
+  if (rv<0) {
+    DBG_INFO(NULL, "here (%d)", rv);
+    return rv;
+  }
+
+  _setupIpc(aqh, dbArgs);
+
+  return 0;
+}
+
+
+
+int _setupStorage(AQHOME_DATA *aqh, GWEN_DB_NODE *dbArgs)
+{
+  const char *dataFolder;
+  const char *stateFile;
+
+  dataFolder=GWEN_DB_GetCharValue(dbArgs, "dataFolder", 0, AQHOME_DATA_DEFAULT_DATADIR);
+  stateFile=GWEN_DB_GetCharValue(dbArgs, "stateFile", 0, NULL);
+  if (stateFile && *stateFile) {
+    AQH_STORAGE *sto;
+    int rv;
+
+    sto=AQH_Storage_new();
+    AQH_Storage_SetStateFile(sto, stateFile);
+
+    AQH_Storage_SetDataFileFolder(sto, (dataFolder && *dataFolder)?dataFolder:NULL);
+
+    rv=AQH_Storage_Init(sto);
+    if (rv<0) {
+      DBG_INFO(NULL, "here (%d)", rv);
+      AQH_Storage_free(sto);
+      return rv;
+    }
+    aqh->storage=sto;
+  }
+  else {
+    DBG_ERROR(NULL, "No state file given");
+    return GWEN_ERROR_GENERIC;
+  }
+  return 0;
+}
+
+
+
+void _setupIpc(AQHOME_DATA *aqh, GWEN_DB_NODE *dbArgs)
+{
+  const char *tcpAddress;
+  int tcpPort;
+
+  tcpAddress=GWEN_DB_GetCharValue(dbArgs, "tcpAddress", 0, NULL);
+  tcpPort=GWEN_DB_GetIntValue(dbArgs, "tcpPort", 0, AQHOME_DATA_DEFAULT_IPC_PORT);
+
+  if (tcpAddress && *tcpAddress && tcpPort) {
+    GWEN_MSG_ENDPOINT *ep;
+
+    ep=GWEN_TcpdEndpoint_new(tcpAddress, tcpPort, NULL, 0);
+    GWEN_TcpdEndpoint_SetAcceptFn(ep, _acceptIpcFn, aqh);
+
+    GWEN_MsgEndpoint_Tree2_AddChild(aqh->ipcdEndpoint, ep);
+    aqh->ipcdEndpoint=ep;
+  }
+}
+
+
+
+GWEN_MSG_ENDPOINT *_acceptIpcFn(GWEN_MSG_ENDPOINT *ep,
+                                GWEN_SOCKET *sk,
+                                const GWEN_INETADDRESS *addr,
+                                GWEN_UNUSED void *data)
+{
+/*  AQHOME_DATA *aqh;
+ *
+ *  aqh=(AQHOME_DATA*) data;
+ */
+  DBG_INFO(NULL, "Incoming IPC connection");
+  return AQH_IpcEndpoint_CreateIpcTcpServiceForSocket(sk, NULL, 0);
+}
+
+
+
+int _createPidFile(const char *pidFilename)
+{
+  FILE *f;
+  int pidfd;
+
+  if (remove(pidFilename)==0) {
+    DBG_ERROR(0, "Old PID file existed, removed. (Unclean shutdown?)");
+  }
+
+#ifdef HAVE_SYS_STAT_H
+  pidfd = open(pidFilename, O_EXCL|O_CREAT|O_WRONLY, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
+  if (pidfd < 0) {
+    DBG_ERROR(NULL, "Could not create PID file \"%s\" (%s), aborting.", pidFilename, strerror(errno));
+    return GWEN_ERROR_IO;
+  }
+
+  f = fdopen(pidfd, "w");
+#else /* HAVE_STAT_H */
+  f=fopen(pidFilename,"w+");
+#endif /* HAVE_STAT_H */
+
+  /* write pid */
+#ifdef HAVE_GETPID
+  fprintf(f,"%d\n",getpid());
+#else
+  fprintf(f,"-1\n");
+#endif
+  if (fclose(f)) {
+    DBG_ERROR(0, "Could not close PID file \"%s\" (%s), aborting.", pidFilename, strerror(errno));
+    return GWEN_ERROR_IO;
+  }
+  return 0;
+}
+
+
+
+
+int _readArgs(int argc, char **argv, GWEN_DB_NODE *dbArgs)
+{
+  int rv;
+  const GWEN_ARGS args[]= {
+    {
+      GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
+      GWEN_ArgsType_Char,           /* type */
+      "tcpAddress",                 /* name */
+      0,                            /* minnum */
+      1,                            /* maxnum */
+      "t",                          /* short option */
+      "tcpaddress",                 /* long option */
+      I18S("Specify the TCP address to listen on (disabled if missing)"),
+      I18S("Specify the TCP address to listen on (disabled if missing)")
+    },
+    {
+      GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
+      GWEN_ArgsType_Int,            /* type */
+      "tcpPort",                    /* name */
+      0,                            /* minnum */
+      1,                            /* maxnum */
+      "P",                          /* short option */
+      "tcpport",                    /* long option */
+      I18S("Specify the TCP port to listen on"),
+      I18S("Specify the TCP port to listen on")
+    },
+    {
+      GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
+      GWEN_ArgsType_Char,           /* type */
+      "datafolder",                 /* name */
+      0,                            /* minnum */
+      1,                            /* maxnum */
+      NULL,                         /* short option */
+      "datafolder",                 /* long option */
+      I18S("Folder where data files are stored"),
+      I18S("Folder where data files are stored")
+    },
+    {
+      GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
+      GWEN_ArgsType_Char,           /* type */
+      "statefile",                  /* name */
+      0,                            /* minnum */
+      1,                            /* maxnum */
+      "S",                          /* short option */
+      "statefile",                  /* long option */
+      I18S("File where rooms, devices and values etc. are stored"),
+      I18S("File where rooms, devices and values etc. are stored")
+    },
+    {
+      GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
+      GWEN_ArgsType_Char,           /* type */
+      "pidfile",                    /* name */
+      0,                            /* minnum */
+      1,                            /* maxnum */
+      "p",                          /* short option */
+      "pidfile",                    /* long option */
+      I18S("Specify the PID file"),
+      I18S("Specify the PID file")
+    },
+    {
+      GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
+      GWEN_ArgsType_Int,            /* type */
+      "timeout",                    /* name */
+      0,                            /* minnum */
+      1,                            /* maxnum */
+      "T",                          /* short option */
+      "timeout",                     /* long option */
+      I18S("Specify timeout in second (default: no timeout)"),
+      I18S("Specify timeout in second (default: no timeout)")
+    },
+    {
+      GWEN_ARGS_FLAGS_HELP | GWEN_ARGS_FLAGS_LAST, /* flags */
+      GWEN_ArgsType_Int,            /* type */
+      "help",                       /* name */
+      0,                            /* minnum */
+      0,                            /* maxnum */
+      "h",                          /* short option */
+      "help",
+      I18S("Show this help screen."),
+      I18S("Show this help screen.")
+    }
+  };
+
+  rv=GWEN_Args_Check(argc, argv, 1, 0, args, dbArgs);
+  if (rv==GWEN_ARGS_RESULT_ERROR) {
+    fprintf(stderr, "ERROR: Could not parse arguments main\n");
+    return GWEN_ERROR_INVALID;
+  }
+  else if (rv==GWEN_ARGS_RESULT_HELP) {
+    GWEN_BUFFER *ubuf;
+
+    ubuf=GWEN_Buffer_new(0, 1024, 0, 1);
+    GWEN_Buffer_AppendArgs(ubuf,
+                           I18N("This is version %s.\nUsage: %s [OPTIONS]\n\nOptions:\n"),
+                           AQHOME_VERSION_STRING,
+                           argv[0]);
+    if (GWEN_Args_Usage(args, ubuf, GWEN_ArgsOutType_Txt)) {
+      fprintf(stderr, "ERROR: Could not create help string\n");
+      return 1;
+    }
+    GWEN_Buffer_AppendString(ubuf, "\n");
+
+    fprintf(stdout, "%s\n", GWEN_Buffer_GetStart(ubuf));
+    GWEN_Buffer_free(ubuf);
+    return GWEN_ERROR_CLOSE;
+  }
+  return 0;
+}
+
+
+

apps/aqhome-data/init.h

@@ -0,0 +1,23 @@
+/****************************************************************************
+ * This file is part of the project AqHome.
+ * AqHome (c) by 2023 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifndef AQHOME_DATA_INIT_H
+#define AQHOME_DATA_INIT_H
+
+
+#include "./aqhome_data.h"
+
+
+
+int AqHomeData_Init(AQHOME_DATA *aqh, int argc, char **argv);
+
+
+
+#endif
+
+

apps/aqhome-data/loop.c

@@ -0,0 +1,181 @@
+/****************************************************************************
+ * This file is part of the project AqHome.
+ * AqHome (c) by 2023 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+
+#include "./loop.h"
+#include "./aqhome_data_p.h"
+#include "aqhome/ipc/data/ipc_data.h"
+
+#include <gwenhywfar/gwenhywfar.h>
+#include <gwenhywfar/args.h>
+#include <gwenhywfar/debug.h>
+#include <gwenhywfar/endpoint_tcpd.h>
+#include <gwenhywfar/msg_ipc.h>
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * defines
+ * ------------------------------------------------------------------------------------------------
+ */
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * forward declarations
+ * ------------------------------------------------------------------------------------------------
+ */
+
+static void _readAndHandleIpcMessages(AQHOME_DATA *aqh);
+static void _handleIpcEndpoint(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep);
+static void _handleIpcMsg(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg);
+static void _handleGetValues(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg);
+static void _handleAddValues(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg);
+static void _handleEditValues(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg);
+static void _handleAddDataPoints(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg);
+static void _handleGetDataPoints(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg);
+static void _handleGetLastDataPoint(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg);
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * implementations
+ * ------------------------------------------------------------------------------------------------
+ */
+
+void AqHomeData_Loop(AQHOME_DATA *aqh, int timeoutInMsecs)
+{
+  if (aqh) {
+    GWEN_MsgEndpoint_ChildrenIoLoop(aqh->ipcdEndpoint, timeoutInMsecs);
+    _readAndHandleIpcMessages(aqh);
+  }
+}
+
+
+
+int AqHomeData_WriteStorageIfChanged(AQHOME_DATA *aqh)
+{
+  if (AQH_Storage_GetRuntimeFlags(aqh->storage) & AQH_STORAGE_RTFLAGS_MODIFIED) {
+    int rv;
+
+    DBG_INFO(NULL, "Storage modified, writing statefile");
+    rv=AqHomeData_LockStorage(aqh);
+    if (rv<0) {
+      DBG_INFO(NULL, "Error locking storage (%d)", rv);
+      return rv;
+    }
+    rv=AQH_Storage_WriteState(aqh->storage);
+    if (rv<0) {
+      DBG_INFO(NULL, "Error writing state file (%d)", rv);
+      AqHomeData_UnlockStorage(aqh);
+      return rv;
+    }
+
+    rv=AqHomeData_UnlockStorage(aqh);
+    if (rv<0) {
+      DBG_INFO(NULL, "Error unlocking storage (%d)", rv);
+      return rv;
+    }
+  }
+
+  return 0;
+}
+
+
+
+void _readAndHandleIpcMessages(AQHOME_DATA *aqh)
+{
+  if (aqh->ipcdEndpoint) {
+    GWEN_MSG_ENDPOINT *ep;
+
+    ep=GWEN_MsgEndpoint_Tree2_GetFirstChild(aqh->ipcdEndpoint);
+    while(ep) {
+      _handleIpcEndpoint(aqh, ep);
+      ep=GWEN_MsgEndpoint_Tree2_GetNext(ep);
+    }
+  }
+}
+
+
+
+void _handleIpcEndpoint(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep)
+{
+  GWEN_MSG *msg;
+
+  while( (msg=GWEN_MsgEndpoint_TakeFirstReceivedMessage(ep)) ) {
+    _handleIpcMsg(aqh, ep, msg);
+    GWEN_Msg_free(msg);
+  }
+}
+
+
+
+void _handleIpcMsg(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg)
+{
+  uint16_t code;
+
+  /* exec IPC message */
+  code=GWEN_IpcMsg_GetCode(msg);
+  DBG_ERROR(AQH_LOGDOMAIN, "Received IPC packet");
+  switch(code) {
+  case AQH_MSGTYPE_IPC_DATA_GETVALUES_REQ:         _handleGetValues(aqh, ep, msg); break;
+  case AQH_MSGTYPE_IPC_DATA_ADDVALUES_REQ:         _handleAddValues(aqh, ep, msg); break;
+  case AQH_MSGTYPE_IPC_DATA_EDITVALUE_REQ:         _handleEditValues(aqh, ep, msg); break;
+  case AQH_MSGTYPE_IPC_DATA_ADDDATAPOINTS_REQ:     _handleAddDataPoints(aqh, ep, msg); break;
+  case AQH_MSGTYPE_IPC_DATA_GETDATAPOINTS_REQ:     _handleGetDataPoints(aqh, ep, msg); break;
+  case AQH_MSGTYPE_IPC_DATA_GETLASTDATAPOINT_REQ:  _handleGetLastDataPoint(aqh, ep, msg); break;
+  default:                                         break;
+  }
+}
+
+
+
+void _handleGetValues(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg)
+{
+}
+
+
+
+void _handleAddValues(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg)
+{
+}
+
+
+
+void _handleEditValues(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg)
+{
+}
+
+
+
+void _handleAddDataPoints(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg)
+{
+}
+
+
+
+void _handleGetDataPoints(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg)
+{
+}
+
+
+
+void _handleGetLastDataPoint(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg)
+{
+}
+
+
+
+
+
+
+

apps/aqhome-data/loop.h

@@ -0,0 +1,26 @@
+/****************************************************************************
+ * This file is part of the project AqHome.
+ * AqHome (c) by 2023 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifndef AQHOME_DATA_LOOP_H
+#define AQHOME_DATA_LOOP_H
+
+
+#include "./aqhome_data.h"
+
+
+void AqHomeData_Loop(AQHOME_DATA *aqh, int timeoutInMsecs);
+
+int AqHomeData_WriteStorageIfChanged(AQHOME_DATA *aqh);
+
+
+#endif
+
+
+
+
+

apps/aqhome-data/main.c

@@ -0,0 +1,243 @@
+/****************************************************************************
+ * This file is part of the project AqHome.
+ * AqHome (c) by 2023 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <aqhome/api.h>
+#include <aqhome/aqhome.h>
+
+#include "./aqhome_data.h"
+#include "./init.h"
+#include "./fini.h"
+#include "./loop.h"
+
+#include <gwenhywfar/gwenhywfar.h>
+#include <gwenhywfar/logger.h>
+#include <gwenhywfar/cgui.h>
+#include <gwenhywfar/debug.h>
+
+#ifdef HAVE_SIGNAL_H
+# include <signal.h>
+#endif
+
+
+
+//#define WRITE_INTERVAL_IN_SECS   (5*60)
+
+#define WRITE_INTERVAL_IN_SECS   (60)
+#define PING_INTERVAL            120
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * defines
+ * ------------------------------------------------------------------------------------------------
+ */
+
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * forward declarations
+ * ------------------------------------------------------------------------------------------------
+ */
+
+#ifdef HAVE_SIGNAL_H
+static int _setSignalHandlers(void);
+static int _setupSigAction(struct sigaction *sa, int sig);
+static void _signalHandler(int s);
+#endif
+
+static void _runService(AQHOME_DATA *aqh);
+static void _writeCurrentState(AQHOME_DATA *aqh);
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * static vars
+ * ------------------------------------------------------------------------------------------------
+ */
+
+#ifdef HAVE_SIGNAL_H
+static struct sigaction saINT,saTERM, saHUP, saTSTP, saCONT;
+#endif
+
+static int stopService=0;
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * implementations
+ * ------------------------------------------------------------------------------------------------
+ */
+
+int main(int argc, char **argv)
+{
+  int rv;
+  AQHOME_DATA *aqh;
+  GWEN_GUI *gui;
+
+  rv=GWEN_Init();
+  if (rv) {
+    fprintf(stderr, "ERROR: Unable to init Gwen.\n");
+    return 2;
+  }
+
+  GWEN_Logger_Open(0, "aqhome-data", 0, GWEN_LoggerType_Console, GWEN_LoggerFacility_User);
+  //GWEN_Logger_SetLevel(0, GWEN_LoggerLevel_Warning);
+  GWEN_Logger_SetLevel(0, GWEN_LoggerLevel_Info);
+
+  rv=_setSignalHandlers();
+  if (rv<0) {
+    DBG_INFO(NULL, "here (%d)", rv);
+    return rv;
+  }
+
+  rv=AQH_Init();
+  if (rv<0) {
+    DBG_INFO(NULL, "here (%d)", rv);
+    return 2;
+  }
+
+  gui=GWEN_Gui_CGui_new();
+  GWEN_Gui_SetGui(gui);
+
+  aqh=AqHomeData_new();
+  rv=AqHomeData_Init(aqh, argc, argv);
+  if (rv<0) {
+    DBG_INFO(NULL, "here (%d)", rv);
+    return 2;
+  }
+
+  _runService(aqh);
+
+  AqHomeData_Fini(aqh);
+  AqHomeData_free(aqh);
+
+  GWEN_Gui_SetGui(NULL);
+  GWEN_Gui_free(gui);
+
+  return 0;
+}
+
+
+
+void _runService(AQHOME_DATA *aqh)
+{
+  time_t timeStart;
+  time_t timeLastWrite;
+  int timeout;
+
+  timeout=AqHomeData_GetTimeout(aqh);
+  timeStart=time(NULL);
+  timeLastWrite=time(NULL);
+
+  while(!stopService) {
+    time_t now;
+
+    DBG_DEBUG(NULL, "Next loop");
+    AqHomeData_Loop(aqh, 2000);
+
+    now=time(NULL);
+
+    if (((int)difftime(now, timeLastWrite))>WRITE_INTERVAL_IN_SECS) {
+      DBG_INFO(NULL, "Write time");
+      _writeCurrentState(aqh);
+      timeLastWrite=now;
+    }
+
+    if (timeout && ((int)difftime(now, timeStart))>timeout) {
+      DBG_INFO(NULL, "Timeout");
+      _writeCurrentState(aqh);
+      break;
+    }
+  } /* while */
+}
+
+
+
+void _writeCurrentState(AQHOME_DATA *aqh)
+{
+  int rv;
+
+  rv=AqHomeData_WriteStorageIfChanged(aqh);
+  if (rv<0) {
+    DBG_ERROR(NULL, "ATTENTION: Could not write storage statefile (%d)", rv);
+  }
+}
+
+
+
+
+int _setSignalHandlers(void)
+{
+#ifdef HAVE_SIGNAL_H
+  int rv;
+
+  rv=_setupSigAction(&saINT, SIGINT);
+  if (rv)
+    return rv;
+
+  rv=_setupSigAction(&saTERM, SIGTERM);
+  if (rv)
+    return rv;
+
+  rv=_setupSigAction(&saHUP, SIGHUP);
+  if (rv)
+    return rv;
+
+#  ifdef SIGTSTP
+  rv=_setupSigAction(&saTSTP, SIGTSTP);
+  if (rv)
+    return rv;
+#  endif
+
+#  ifdef SIGCONT
+  rv=_setupSigAction(&saCONT, SIGCONT);
+  if (rv)
+    return rv;
+#  endif
+#endif
+  return 0;
+}
+
+
+
+int _setupSigAction(struct sigaction *sa, int sig)
+{
+  sa->sa_handler=_signalHandler;
+  sigemptyset(&sa->sa_mask);
+  sa->sa_flags=0;
+  if (sigaction(sig, sa, 0)) {
+    DBG_ERROR(NULL, "Could not setup signal handler for signal %d", sig);
+    return GWEN_ERROR_IO;
+  }
+
+  return 0;
+}
+
+
+
+void _signalHandler(int s)
+{
+  switch(s) {
+  case SIGINT:
+  case SIGTERM:
+  case SIGHUP:
+    DBG_WARN(0, "Received signal %d, stopping service in next loop.",s);
+    stopService=1;
+    break;
+  default:
+    DBG_WARN(0, "Unknown signal %d",s);
+    break;
+  }
+}
+
+