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- added maximum log entry size for LogStorage

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- implemented maximum log entries for sqlite log storage
- added log to C# API
pull/6/head
Michael Zillgith 9 years ago
parent fca675e2a1
commit dc281a7ee9
7 changed files with 449 additions and 255 deletions
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276
dotnet/IEC61850forCSharp/IEC61850ClientAPI.cs
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@ -431,6 +431,10 @@ namespace IEC61850
}
}
/// <summary>
/// Gets the connection parameters
/// </summary>
/// <returns>The connection parameters</returns>
public IsoConnectionParameters GetConnectionParameters ()
{
IntPtr mmsConnection = IedConnection_getMmsConnection(connection);
@ -448,6 +452,10 @@ namespace IEC61850
private UInt32 connectTimeout = 10000;
/// <summary>
/// Gets or sets the timeout used for connection attempts.
/// </summary>
/// <value>The connect timeout in milliseconds</value>
public UInt32 ConnectTimeout {
get {
return connectTimeout;
@ -494,6 +502,14 @@ namespace IEC61850
return controlObject;
}
/// <summary>
/// Updates the device model by quering the server.
/// </summary>
public void UpdateDeviceModel()
{
int error;
@ -504,6 +520,12 @@ namespace IEC61850
throw new IedConnectionException("UpdateDeviceModel failed", error);
}
/// <summary>
/// Gets the server directory (Logical devices or file objects)
/// </summary>
/// <returns>List of logical devices or files</returns>
/// <param name="fileDirectory">If set to <c>true</c> the file directory is returned, otherwise the LD names</param>
/// <exception cref="IedConnectionException">This exception is thrown if there is a connection or service error</exception>
public List<string> GetServerDirectory (bool fileDirectory = false)
{
@ -731,6 +753,7 @@ namespace IEC61850
/// <param name="entryID">EntryID of the last received MmsJournalEntry</param>
/// <param name="timestamp">Timestamp of the last received MmsJournalEntry</param>
/// <param name="moreFollows">Indicates that more log entries are available</param>
/// <exception cref="IedConnectionException">This exception is thrown if there is a connection or service error</exception>
public List<MmsJournalEntry> QueryLogAfter(string logRef, byte[] entryID, ulong timestamp, out bool moreFollows)
{
int error;
@ -756,6 +779,7 @@ namespace IEC61850
/// <param name="startTime">Start time of the time range</param>
/// <param name="stopTime">End time of the time range</param>
/// <param name="moreFollows">Indicates that more log entries are available</param>
/// <exception cref="IedConnectionException">This exception is thrown if there is a connection or service error</exception>
public List<MmsJournalEntry> QueryLogByTime(string logRef, ulong startTime, ulong stopTime, out bool moreFollows)
{
int error;
@ -772,24 +796,6 @@ namespace IEC61850
}
private static DateTime DateTimeFromMsTimestamp(ulong msTime)
{
DateTime dateTime = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
ulong seconds = msTime / 1000;
ulong millies = msTime % 1000;
dateTime.AddSeconds ((double) seconds);
dateTime.AddMilliseconds((double) millies);
return dateTime;
}
private static ulong DateTimeToMsTimestamp(DateTime dateTime)
{
return (ulong) (dateTime.ToUniversalTime ().Subtract (new DateTime (1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalMilliseconds);
}
/// <summary>
/// Queries all log entries of the given time range
/// </summary>
@ -798,10 +804,11 @@ namespace IEC61850
/// <param name="startTime">Start time of the time range</param>
/// <param name="stopTime">End time of the time range</param>
/// <param name="moreFollows">Indicates that more log entries are available</param>
/// <exception cref="IedConnectionException">This exception is thrown if there is a connection or service error</exception>
public List<MmsJournalEntry> QueryLogByTime(string logRef, DateTime startTime, DateTime stopTime, out bool moreFollows)
{
ulong startTimeMs = DateTimeToMsTimestamp (startTime);
ulong stopTimeMs = DateTimeToMsTimestamp (stopTime);
ulong startTimeMs = LibIEC61850.DateTimeToMsTimestamp (startTime);
ulong stopTimeMs = LibIEC61850.DateTimeToMsTimestamp (stopTime);
return QueryLogByTime (logRef, startTimeMs, stopTimeMs, out moreFollows);
}
@ -1445,233 +1452,4 @@ namespace IEC61850
IED_ERROR_UNKNOWN = 99
}
}
namespace Common
{
[Flags]
public enum TriggerOptions {
NONE = 0,
/** send report when value of data changed */
DATA_CHANGED = 1,
/** send report when quality of data changed */
QUALITY_CHANGED = 2,
/** send report when data or quality is updated */
DATA_UPDATE = 4,
/** periodic transmission of all data set values */
INTEGRITY = 8,
/** general interrogation (on client request) */
GI = 16
}
[Flags]
public enum ReportOptions {
NONE = 0,
SEQ_NUM = 1,
TIME_STAMP = 2,
REASON_FOR_INCLUSION = 4,
DATA_SET = 8,
DATA_REFERENCE = 16,
BUFFER_OVERFLOW = 32,
ENTRY_ID = 64,
CONF_REV = 128,
ALL = 255
}
public enum Validity
{
GOOD = 0,
RESERVED = 1,
INVALID = 2,
QUESTIONABLE = 3
}
/// <summary>
/// The quality of a data object.
/// </summary>
public class Quality
{
private UInt16 value;
public Quality (int bitStringValue)
{
value = (UInt16)bitStringValue;
}
public Quality ()
{
value = 0;
}
public Validity GetValidity ()
{
int qualityVal = value & 0x3;
return (Validity)qualityVal;
}
public void SetValidity (Validity validity)
{
value = (UInt16)(value & 0xfffc);
value += (ushort)validity;
}
}
public enum ACSIClass
{
/** data objects */
ACSI_CLASS_DATA_OBJECT,
/** data sets (container for multiple data objects) */
ACSI_CLASS_DATA_SET,
/** buffered report control blocks */
ACSI_CLASS_BRCB,
/** unbuffered report control blocks */
ACSI_CLASS_URCB,
/** log control blocks */
ACSI_CLASS_LCB,
/** logs (journals) */
ACSI_CLASS_LOG,
/** setting group control blocks */
ACSI_CLASS_SGCB,
/** GOOSE control blocks */
ACSI_CLASS_GoCB,
/** GSE control blocks */
ACSI_CLASS_GsCB,
/** multicast sampled values control blocks */
ACSI_CLASS_MSVCB,
/** unicast sampled values control blocks */
ACSI_CLASS_USVCB
}
public enum FunctionalConstraint
{
/** Status information */
ST = 0,
/** Measurands - analog values */
MX = 1,
/** Setpoint */
SP = 2,
/** Substitution */
SV = 3,
/** Configuration */
CF = 4,
/** Description */
DC = 5,
/** Setting group */
SG = 6,
/** Setting group editable */
SE = 7,
/** Service response / Service tracking */
SR = 8,
/** Operate received */
OR = 9,
/** Blocking */
BL = 10,
/** Extended definition */
EX = 11,
/** Control */
CO = 12,
/** Unicast SV */
US = 13,
/** Multicast SV */
MS = 14,
/** Unbuffered report */
RP = 15,
/** Buffered report */
BR = 16,
/** Log control blocks */
LG = 17,
/** All FCs - wildcard value */
ALL = 99,
NONE = -1
}
public enum ControlAddCause {
ADD_CAUSE_UNKNOWN = 0,
ADD_CAUSE_NOT_SUPPORTED = 1,
ADD_CAUSE_BLOCKED_BY_SWITCHING_HIERARCHY = 2,
ADD_CAUSE_SELECT_FAILED = 3,
ADD_CAUSE_INVALID_POSITION = 4,
ADD_CAUSE_POSITION_REACHED = 5,
ADD_CAUSE_PARAMETER_CHANGE_IN_EXECUTION = 6,
ADD_CAUSE_STEP_LIMIT = 7,
ADD_CAUSE_BLOCKED_BY_MODE = 8,
ADD_CAUSE_BLOCKED_BY_PROCESS = 9,
ADD_CAUSE_BLOCKED_BY_INTERLOCKING = 10,
ADD_CAUSE_BLOCKED_BY_SYNCHROCHECK = 11,
ADD_CAUSE_COMMAND_ALREADY_IN_EXECUTION = 12,
ADD_CAUSE_BLOCKED_BY_HEALTH = 13,
ADD_CAUSE_1_OF_N_CONTROL = 14,
ADD_CAUSE_ABORTION_BY_CANCEL = 15,
ADD_CAUSE_TIME_LIMIT_OVER = 16,
ADD_CAUSE_ABORTION_BY_TRIP = 17,
ADD_CAUSE_OBJECT_NOT_SELECTED = 18,
ADD_CAUSE_OBJECT_ALREADY_SELECTED = 19,
ADD_CAUSE_NO_ACCESS_AUTHORITY = 20,
ADD_CAUSE_ENDED_WITH_OVERSHOOT = 21,
ADD_CAUSE_ABORTION_DUE_TO_DEVIATION = 22,
ADD_CAUSE_ABORTION_BY_COMMUNICATION_LOSS = 23,
ADD_CAUSE_ABORTION_BY_COMMAND = 24,
ADD_CAUSE_NONE = 25,
ADD_CAUSE_INCONSISTENT_PARAMETERS = 26,
ADD_CAUSE_LOCKED_BY_OTHER_CLIENT = 27
}
/// <summary>
/// Object reference. Helper function to handle object reference strings.
/// </summary>
public static class ObjectReference {
/// <summary>
/// Get the name part of an object reference with appended FC
/// </summary>
/// <returns>
/// The element name.
/// </returns>
/// <param name='objectReferenceWithFc'>
/// Object reference with appended fc.
/// </param>
public static string getElementName (string objectReferenceWithFc)
{
int fcPartStartIndex = objectReferenceWithFc.IndexOf('[');
if (fcPartStartIndex == -1)
return objectReferenceWithFc;
return objectReferenceWithFc.Substring(0, fcPartStartIndex);
}
/// <summary>
/// Get the FC of an object reference with appended FC.
/// </summary>
/// <returns>
/// The FC
/// </returns>
/// <param name='objectReferenceWithFc'>
/// Object reference with FC.
/// </param>
public static FunctionalConstraint getFC (string objectReferenceWithFc)
{
int fcPartStartIndex = objectReferenceWithFc.IndexOf('[');
if (fcPartStartIndex == -1)
return FunctionalConstraint.NONE;
string fcString = objectReferenceWithFc.Substring(fcPartStartIndex + 1 , 2);
try
{
return (FunctionalConstraint) Enum.Parse(typeof(FunctionalConstraint), fcString);
}
catch(ArgumentException)
{
return FunctionalConstraint.NONE;
}
}
}
}
}

278
dotnet/IEC61850forCSharp/IEC61850CommonAPI.cs
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@ -0,0 +1,278 @@
using System;
using System.Runtime.InteropServices;
namespace IEC61850
{
namespace Common
{
public class LibIEC61850
{
[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
static extern IntPtr LibIEC61850_getVersionString();
/// <summary>
/// Get the version string of the native libiec61850 library
/// </summary>
/// <returns>The version string in format MAJOR.MINOR.PATCH</returns>
public static string GetVersionString()
{
return Marshal.PtrToStringAnsi (LibIEC61850_getVersionString ());
}
/// <summary>
/// Converts millisecond timestamp to a DateTime object
/// </summary>
/// <returns>The DateTime object representing the value of the timestamp</returns>
/// <param name="msTime">The timestamp in milliseconds since epoch (UTC)</param>
public static DateTime MsTimestampToDateTime(ulong msTime)
{
DateTime dateTime = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
ulong seconds = msTime / 1000;
ulong millies = msTime % 1000;
dateTime.AddSeconds ((double) seconds);
dateTime.AddMilliseconds((double) millies);
return dateTime;
}
/// <summary>
/// Converts a DateTime object in milliseconds since epoch timestamp (UTC)
/// </summary>
/// <returns>The timestamp in ms</returns>
/// <param name="msTime">The DateTime object to convert</param>
public static ulong DateTimeToMsTimestamp(DateTime dateTime)
{
return (ulong) (dateTime.ToUniversalTime ().Subtract (new DateTime (1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalMilliseconds);
}
}
[Flags]
public enum TriggerOptions {
NONE = 0,
/** send report when value of data changed */
DATA_CHANGED = 1,
/** send report when quality of data changed */
QUALITY_CHANGED = 2,
/** send report when data or quality is updated */
DATA_UPDATE = 4,
/** periodic transmission of all data set values */
INTEGRITY = 8,
/** general interrogation (on client request) */
GI = 16
}
[Flags]
public enum ReportOptions {
NONE = 0,
SEQ_NUM = 1,
TIME_STAMP = 2,
REASON_FOR_INCLUSION = 4,
DATA_SET = 8,
DATA_REFERENCE = 16,
BUFFER_OVERFLOW = 32,
ENTRY_ID = 64,
CONF_REV = 128,
ALL = 255
}
public enum Validity
{
GOOD = 0,
RESERVED = 1,
INVALID = 2,
QUESTIONABLE = 3
}
/// <summary>
/// The quality of a data object.
/// </summary>
public class Quality
{
private UInt16 value;
public Quality (int bitStringValue)
{
value = (UInt16)bitStringValue;
}
public Quality ()
{
value = 0;
}
public Validity GetValidity ()
{
int qualityVal = value & 0x3;
return (Validity)qualityVal;
}
public void SetValidity (Validity validity)
{
value = (UInt16)(value & 0xfffc);
value += (ushort)validity;
}
}
public enum ACSIClass
{
/** data objects */
ACSI_CLASS_DATA_OBJECT,
/** data sets (container for multiple data objects) */
ACSI_CLASS_DATA_SET,
/** buffered report control blocks */
ACSI_CLASS_BRCB,
/** unbuffered report control blocks */
ACSI_CLASS_URCB,
/** log control blocks */
ACSI_CLASS_LCB,
/** logs (journals) */
ACSI_CLASS_LOG,
/** setting group control blocks */
ACSI_CLASS_SGCB,
/** GOOSE control blocks */
ACSI_CLASS_GoCB,
/** GSE control blocks */
ACSI_CLASS_GsCB,
/** multicast sampled values control blocks */
ACSI_CLASS_MSVCB,
/** unicast sampled values control blocks */
ACSI_CLASS_USVCB
}
public enum FunctionalConstraint
{
/** Status information */
ST = 0,
/** Measurands - analog values */
MX = 1,
/** Setpoint */
SP = 2,
/** Substitution */
SV = 3,
/** Configuration */
CF = 4,
/** Description */
DC = 5,
/** Setting group */
SG = 6,
/** Setting group editable */
SE = 7,
/** Service response / Service tracking */
SR = 8,
/** Operate received */
OR = 9,
/** Blocking */
BL = 10,
/** Extended definition */
EX = 11,
/** Control */
CO = 12,
/** Unicast SV */
US = 13,
/** Multicast SV */
MS = 14,
/** Unbuffered report */
RP = 15,
/** Buffered report */
BR = 16,
/** Log control blocks */
LG = 17,
/** All FCs - wildcard value */
ALL = 99,
NONE = -1
}
public enum ControlAddCause {
ADD_CAUSE_UNKNOWN = 0,
ADD_CAUSE_NOT_SUPPORTED = 1,
ADD_CAUSE_BLOCKED_BY_SWITCHING_HIERARCHY = 2,
ADD_CAUSE_SELECT_FAILED = 3,
ADD_CAUSE_INVALID_POSITION = 4,
ADD_CAUSE_POSITION_REACHED = 5,
ADD_CAUSE_PARAMETER_CHANGE_IN_EXECUTION = 6,
ADD_CAUSE_STEP_LIMIT = 7,
ADD_CAUSE_BLOCKED_BY_MODE = 8,
ADD_CAUSE_BLOCKED_BY_PROCESS = 9,
ADD_CAUSE_BLOCKED_BY_INTERLOCKING = 10,
ADD_CAUSE_BLOCKED_BY_SYNCHROCHECK = 11,
ADD_CAUSE_COMMAND_ALREADY_IN_EXECUTION = 12,
ADD_CAUSE_BLOCKED_BY_HEALTH = 13,
ADD_CAUSE_1_OF_N_CONTROL = 14,
ADD_CAUSE_ABORTION_BY_CANCEL = 15,
ADD_CAUSE_TIME_LIMIT_OVER = 16,
ADD_CAUSE_ABORTION_BY_TRIP = 17,
ADD_CAUSE_OBJECT_NOT_SELECTED = 18,
ADD_CAUSE_OBJECT_ALREADY_SELECTED = 19,
ADD_CAUSE_NO_ACCESS_AUTHORITY = 20,
ADD_CAUSE_ENDED_WITH_OVERSHOOT = 21,
ADD_CAUSE_ABORTION_DUE_TO_DEVIATION = 22,
ADD_CAUSE_ABORTION_BY_COMMUNICATION_LOSS = 23,
ADD_CAUSE_ABORTION_BY_COMMAND = 24,
ADD_CAUSE_NONE = 25,
ADD_CAUSE_INCONSISTENT_PARAMETERS = 26,
ADD_CAUSE_LOCKED_BY_OTHER_CLIENT = 27
}
/// <summary>
/// Object reference. Helper function to handle object reference strings.
/// </summary>
public static class ObjectReference {
/// <summary>
/// Get the name part of an object reference with appended FC
/// </summary>
/// <returns>
/// The element name.
/// </returns>
/// <param name='objectReferenceWithFc'>
/// Object reference with appended fc.
/// </param>
public static string getElementName (string objectReferenceWithFc)
{
int fcPartStartIndex = objectReferenceWithFc.IndexOf('[');
if (fcPartStartIndex == -1)
return objectReferenceWithFc;
return objectReferenceWithFc.Substring(0, fcPartStartIndex);
}
/// <summary>
/// Get the FC of an object reference with appended FC.
/// </summary>
/// <returns>
/// The FC
/// </returns>
/// <param name='objectReferenceWithFc'>
/// Object reference with FC.
/// </param>
public static FunctionalConstraint getFC (string objectReferenceWithFc)
{
int fcPartStartIndex = objectReferenceWithFc.IndexOf('[');
if (fcPartStartIndex == -1)
return FunctionalConstraint.NONE;
string fcString = objectReferenceWithFc.Substring(fcPartStartIndex + 1 , 2);
try
{
return (FunctionalConstraint) Enum.Parse(typeof(FunctionalConstraint), fcString);
}
catch(ArgumentException)
{
return FunctionalConstraint.NONE;
}
}
}
}
}

1
dotnet/IEC61850forCSharp/IEC61850forCSharp.csproj
Unescape Escape View File

@ -46,6 +46,7 @@
<Compile Include="IsoConnectionParameters.cs" />
<Compile Include="MmsVariableSpecification.cs" />
<Compile Include="IEC61850ServerAPI.cs" />
<Compile Include="IEC61850CommonAPI.cs" />
</ItemGroup>
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
</Project>

5
examples/server_example_logging/server_example_logging.c
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@ -17,7 +17,8 @@
#include "logging_api.h"
LogStorage SqliteLogStorage_createInstance(const char*);
LogStorage
SqliteLogStorage_createInstance(const char* filename);
/* import IEC 61850 device model created from SCL-File */
extern IedModel iedModel;
@ -143,6 +144,8 @@ main(int argc, char** argv)
LogStorage statusLog = SqliteLogStorage_createInstance("log_status.db");
LogStorage_setMaxLogEntries(statusLog, 10);
IedServer_setLogStorage(iedServer, "GenericIO/LLN0$EventLog", statusLog);
#if 0

122
src/logging/drivers/sqlite/log_storage_sqlite.c
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@ -63,6 +63,9 @@ typedef struct sSqliteLogStorage {
sqlite3_stmt* getEntryData;
sqlite3_stmt* getOldEntry;
sqlite3_stmt* getNewEntry;
sqlite3_stmt* getEntriesCount;
sqlite3_stmt* deleteEntryData;
sqlite3_stmt* deleteEntry;
} SqliteLogStorage;
static const char* CREATE_TABLE_ENTRYS = "create table if not exists Entries (entryID integer primary key, timeOfEntry integer)";
@ -76,6 +79,11 @@ static const char* GET_ENTRY_DATA = "select dataRef, value, reasonCode from Entr
static const char* GET_OLD_ENTRY = "select * from Entries where entryID = (select min(entryID) from Entries where timeOfEntry = (select min(timeOfEntry) from Entries))";
static const char* GET_NEW_ENTRY = "select * from Entries where entryID = (select max(entryID) from Entries where timeOfEntry = (select max(timeOfEntry) from Entries))";
static const char* GET_ENTRIES_COUNT = "select Count(*) from Entries";
static const char* DELETE_ENTRY_DATA = "delete from EntryData where entryID=?";
static const char* DELETE_ENTRY = "delete from Entries where entryID=?";
static char*
copyStringInternal(const char* string)
{
@ -100,6 +108,10 @@ SqliteLogStorage_createInstance(const char* filename)
sqlite3_stmt* getEntryData = NULL;
sqlite3_stmt* getOldEntry = NULL;
sqlite3_stmt* getNewEntry = NULL;
sqlite3_stmt* getEntriesCount = NULL;
sqlite3_stmt* deleteEntryData = NULL;
sqlite3_stmt* deleteEntry = NULL;
char *zErrMsg = 0;
int rc = sqlite3_open(filename, &db);
@ -143,6 +155,18 @@ SqliteLogStorage_createInstance(const char* filename)
if (rc != SQLITE_OK)
goto exit_with_error;
rc = sqlite3_prepare_v2(db, GET_ENTRIES_COUNT, -1, &getEntriesCount, NULL);
if (rc != SQLITE_OK)
goto exit_with_error;
rc = sqlite3_prepare_v2(db, DELETE_ENTRY_DATA, -1, &deleteEntryData, NULL);
if (rc != SQLITE_OK)
goto exit_with_error;
rc = sqlite3_prepare_v2(db, DELETE_ENTRY, -1, &deleteEntry, NULL);
if (rc != SQLITE_OK)
goto exit_with_error;
LogStorage self = (LogStorage) calloc(1, sizeof(struct sLogStorage));
SqliteLogStorage* instanceData = (SqliteLogStorage*) calloc(1, sizeof(struct sSqliteLogStorage));
@ -156,6 +180,9 @@ SqliteLogStorage_createInstance(const char* filename)
instanceData->getEntryData = getEntryData;
instanceData->getOldEntry = getOldEntry;
instanceData->getNewEntry = getNewEntry;
instanceData->getEntriesCount = getEntriesCount;
instanceData->deleteEntryData = deleteEntryData;
instanceData->deleteEntry = deleteEntry;
self->instanceData = (void*) instanceData;
@ -165,6 +192,7 @@ SqliteLogStorage_createInstance(const char* filename)
self->getEntriesAfter = SqliteLogStorage_getEntriesAfter;
self->getOldestAndNewestEntries = SqliteLogStorage_getOldestAndNewestEntries;
self->destroy = SqliteLogStorage_destroy;
self->maxLogEntries = -1;
return self;
@ -175,6 +203,87 @@ exit_with_error:
return NULL;
}
static void
deleteOldestEntry(SqliteLogStorage* self)
{
int rc;
/* Get oldest entry */
rc = sqlite3_reset(self->getOldEntry);
if (rc != SQLITE_OK)
goto exit_with_error;
rc = sqlite3_step(self->getOldEntry);
int64_t entryId;
if (rc == SQLITE_ROW) {
entryId = sqlite3_column_int64(self->getOldEntry, 0);
sqlite3_reset(self->deleteEntryData);
rc = sqlite3_bind_int64(self->deleteEntryData, 1, (sqlite_int64) entryId);
rc = sqlite3_step(self->deleteEntryData);
if (rc != SQLITE_DONE)
goto exit_with_error;
sqlite3_reset(self->deleteEntry);
rc = sqlite3_bind_int64(self->deleteEntry, 1, (sqlite_int64) entryId);
rc = sqlite3_step(self->deleteEntry);
if (rc != SQLITE_DONE)
goto exit_with_error;
}
else
goto exit_with_error;
return;
exit_with_error:
if (DEBUG_LOG_STORAGE_DRIVER)
printf("LOG_STORAGE_DRIVER: sqlite - failed to delete oldest entry (rc=%i)!\n", rc);
return;
}
static int
getEntriesCount(SqliteLogStorage* self)
{
int rc;
rc = sqlite3_reset(self->getEntriesCount);
if (rc != SQLITE_OK)
goto exit_with_error;
rc = sqlite3_step(self->getEntriesCount);
int entryCount = sqlite3_column_int(self->getEntriesCount, 0);
return entryCount;
exit_with_error:
if (DEBUG_LOG_STORAGE_DRIVER)
printf("LOG_STORAGE_DRIVER: sqlite - failed to get entry count! (rc=%i)\n", rc);
return -1;
}
static void
trimToMaxEntries(SqliteLogStorage* self, int maxEntries)
{
int deleteEntries = getEntriesCount(self) - maxEntries;
int i;
for (i = 0; i < deleteEntries; i++)
deleteOldestEntry(self);
}
static uint64_t
SqliteLogStorage_addEntry(LogStorage self, uint64_t timestamp)
@ -208,6 +317,11 @@ SqliteLogStorage_addEntry(LogStorage self, uint64_t timestamp)
if (rc != SQLITE_OK)
goto exit_with_error;
if (self->maxLogEntries > 0) {
if (getEntriesCount(instanceData) > self->maxLogEntries)
trimToMaxEntries(instanceData, self->maxLogEntries);
}
return id;
exit_with_error:
@ -379,6 +493,7 @@ SqliteLogStorage_getOldestAndNewestEntries(LogStorage self, uint64_t* newEntry,
int rc;
/* Get oldest entry */
sqlite3_reset(instanceData->getOldEntry);
rc = sqlite3_step(instanceData->getOldEntry);
@ -392,9 +507,9 @@ SqliteLogStorage_getOldestAndNewestEntries(LogStorage self, uint64_t* newEntry,
*oldEntryTime = 0;
}
sqlite3_reset(instanceData->getOldEntry);
/* Get newest entry */
sqlite3_reset(instanceData->getNewEntry);
rc = sqlite3_step(instanceData->getNewEntry);
@ -408,8 +523,6 @@ SqliteLogStorage_getOldestAndNewestEntries(LogStorage self, uint64_t* newEntry,
*newEntryTime = 0;
}
sqlite3_reset(instanceData->getNewEntry);
return (validOldEntry && validNewEntry);
}
@ -471,6 +584,9 @@ SqliteLogStorage_destroy(LogStorage self)
sqlite3_finalize(instanceData->getEntryData);
sqlite3_finalize(instanceData->getOldEntry);
sqlite3_finalize(instanceData->getNewEntry);
sqlite3_finalize(instanceData->getEntriesCount);
sqlite3_finalize(instanceData->deleteEntryData);
sqlite3_finalize(instanceData->deleteEntry);
if (sqlite3_close(instanceData->db) != SQLITE_OK)
if (DEBUG_LOG_STORAGE_DRIVER)

7
src/logging/log_storage.c
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@ -23,6 +23,13 @@
#include "logging_api.h"
void
LogStorage_setMaxLogEntries(LogStorage self, int maxEntries)
{
self->maxLogEntries = maxEntries;
}
uint64_t
LogStorage_addEntry(LogStorage self, uint64_t timestamp)
{

13
src/logging/logging_api.h
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@ -41,7 +41,7 @@ extern "C" {
*
* This interface has to be implemented by the log storage provider. The Log storage provider
* has to provide a specific constructor that creates an instance of LogStorage by allocating
* the required memory fot the struct sLogStorage data structure and populate the function
* the required memory for the struct sLogStorage data structure and populate the function
* pointers with provider specific implementation functions.
*
* @{
@ -80,6 +80,8 @@ struct sLogStorage {
void* instanceData;
int maxLogEntries;
uint64_t (*addEntry) (LogStorage self, uint64_t timestamp);
bool (*addEntryData) (LogStorage self, uint64_t entryID, const char* dataRef, uint8_t* data, int dataSize, uint8_t reasonCode);
@ -97,6 +99,15 @@ struct sLogStorage {
};
/**
* \brief Set the maximum number of log entries for this log
*
* \param self the pointer of the LogStorage instance
* \param maxEntries the maximum number of log entries
*/
void
LogStorage_setMaxLogEntries(LogStorage self, int maxEntries);
/**
* \brief Add an entry to the log
*

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