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Commitf16c31e

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Add AGMDB_getErrorInfo() function for printing the error log.
1 parent639acaf commitf16c31e

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2 files changed

+127
-8
lines changed

2 files changed

+127
-8
lines changed

‎apache2/ag_mdb/ag_mdb.cpp‎

Lines changed: 111 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -77,7 +77,7 @@ int Lock_create(struct agmdb_lock *new_lock, const char* lock_name, int lock_nam
7777
if(new_mutex ==NULL)
7878
return AGMDB_ERROR_LOCK_WIN_MUTEX_CREATE_FAIL;
7979
if((GetLastError() == ERROR_ALREADY_EXISTS) != lock_exists)// One lock exists, another not.
80-
returnAGMDB_ERROR_LOCK_WIN_ONLY_ONE_LCOK_EXISTS;
80+
returnAGMDB_ERROR_LOCK_WIN_ONLY_ONE_LOCK_EXISTS;
8181
new_lock->write_lock_handle =OpenMutex(
8282
MUTEX_ALL_ACCESS,//
8383
false,//
@@ -901,7 +901,7 @@ int AGMDB_setExpireTime(struct agmdb_handler *dbm, unsigned int expire_time){
901901
return AGMDB_ERROR_HANDLE_NULL;
902902

903903
if(expire_time <0)
904-
returnAGMDB_ERROR_SET_NAGATIVE_EXIPRE_TIME;
904+
returnAGMDB_ERROR_SET_NEGATIVE_EXIPRE_TIME;
905905
*SHM_EXPIRE_TIME((const PTR_VOID)(dbm->shm_base)) = expire_time;
906906
return AGMDB_SUCCESS;
907907
}
@@ -1077,15 +1077,121 @@ int AGMDB_removeStale(struct agmdb_handler *dbm) {
10771077
return AGMDB_SUCCESS;
10781078
}
10791079

1080-
constchar*AGMDB_getErrorInfo(int error_code){
1081-
returnNULL;
1082-
}
10831080
/**
10841081
**========================================================
10851082
** AG Memory Database Debug API
10861083
**========================================================
10871084
*/
10881085

1086+
/**
1087+
** Get the detail information of an error.
1088+
** @param error_no: the error code returned by a function.
1089+
** return: The error information.
1090+
*/
1091+
constchar*AGMDB_getErrorInfo(int error_no){
1092+
switch(error_no){
1093+
case AGMDB_SUCCESS:
1094+
return"Success!";
1095+
case AGMDB_ERROR_LOCK_OP_NEGATIVE_VAL:
1096+
return"When operating the lock, the operation value is negative!";
1097+
1098+
case AGMDB_ERROR_LOCK_LINUX_SEM_CREATE_FAIL:
1099+
return"In Linux system, failed when creating the semaphore. Please check the semaphore limit of the system.";
1100+
case AGMDB_ERROR_LOCK_LINUX_SEM_OPEN_FAIL:
1101+
return"In Linux system, failed when opening an existed semaphore. Please check the semaphore limit and permission settings.";
1102+
case AGMDB_ERROR_LOCK_LINUX_SEM_INIT_FAIL:
1103+
return"In Linux system, failed when initializing the semaphore value. Please check the existence and permission of the semaphore.";
1104+
case AGMDB_ERROR_LOCK_LINUX_SEM_MODIFY_FAIL:
1105+
return"In Linux system, failed when modifying the semaphore value. Please check the existence and permission of the semaphore.";
1106+
1107+
case AGMDB_ERROR_LOCK_WIN_NAME_INVALID_STRING:
1108+
return"In Windows system, the name of lock is not a valid string. Please check the data_dir setting in configuration file.";
1109+
case AGMDB_ERROR_LOCK_WIN_MUTEX_CREATE_FAIL:
1110+
return"In Windows system, failed when creating the mutex object.";
1111+
case AGMDB_ERROR_LOCK_WIN_ONLY_ONE_LOCK_EXISTS:
1112+
return"In Windows system, one and only one lock has existed.";
1113+
case AGMDB_ERROR_LOCK_WIN_GET_MUTEX_FAIL:
1114+
return"In Windows system, failed when getting the mutex object. Possible reason is deadlock or permission issue.";
1115+
case AGMDB_ERROR_LOCK_WIN_RELEASE_MUTEX_FAIL:
1116+
return"In Windows system, failed when releasing the mutex object.";
1117+
1118+
case AGMDB_ERROR_SHM_BASE_NULL:
1119+
return"The shared memory base address is NULL. Please check the agmdb_handler object.";
1120+
case AGMDB_ERROR_SHM_SIZE_TOO_SMALL:
1121+
return"The size setting of shared memory is too small to save the DB control information.";
1122+
case AGMDB_ERROR_SHM_NAME_INVALID_STRING:
1123+
return"The name of database is not a valid string. Please check the data_dir setting in configuration file.";
1124+
case AGMDB_ERROR_SHM_ENTRY_NUM_NEGATIVE:
1125+
return"The setting of DB's entry number is negative!";
1126+
1127+
case AGMDB_ERROR_SHM_LINUX_CREATE_FAIL:
1128+
return"In Linux system, failed when creating the shared memory.";
1129+
case AGMDB_ERROR_SHM_LINUX_MAP_FAIL:
1130+
return"In Linux system, failed when mapping the shared memory into the process's address space.";
1131+
1132+
case AGMDB_ERROR_SHM_WIN_CREATE_FAIL:
1133+
return"In Windows system, failed when creating the shared memory.";
1134+
case AGMDB_ERROR_SHM_WIN_MAP_FAIL:
1135+
return"In Windows system, failed when mapping the shared memory into the process's address space.";
1136+
1137+
case AGMDB_ERROR_INSERT_INVALID_ENTRY_INTO_SPARELIST:
1138+
return"The AGMDB is inserting an invalid entry into the spare list.";
1139+
case AGMDB_ERROR_INSERT_BUSY_ENTRY_INTO_SPARELIST:
1140+
return"The AGMDB is inserting a busy entry into the spare list. Should remove the entry from hashlist first.";
1141+
1142+
case AGMDB_ERROR_INSERT_INVALID_ENTRY_INTO_HASHLIST:
1143+
return"The AGMDB is inserting an invalid entry into the hashlist.";
1144+
case AGMDB_ERROR_INSERT_BUSY_ENTRY_INTO_HASHLIST:
1145+
return"The AGMDB is inserting a busy entry into the hashlist.";
1146+
1147+
case AGMDB_ERROR_REMOVE_INVALID_ENTRY_FROM_HASHLIST:
1148+
return"The AGMDB is removing an invalid entry from hashlist";
1149+
case AGMDB_ERROR_NONHEAD_ENTRY_IN_HASHLIST_WITHOUT_PREV:
1150+
return"An entry in hashlist without previous entry is not the head of the hashlist.";
1151+
1152+
case AGMDB_ERROR_INSERT_INVALID_ENTRY_INTO_TIMELIST:
1153+
return"The AGMDB is inserting an invalid entry into the expire time list.";
1154+
case AGMDB_ERROR_REMOVE_INVALID_ENTRY_FROM_TIMELIST:
1155+
return"The AGMDB is removing an invalid entry into the expire time list.";
1156+
1157+
case AGMDB_ERROR_SET_KEYVAL_OF_INVALID_ENTRY:
1158+
return"The AGMDB is setting key-value to an invalid entry.";
1159+
1160+
case AGMDB_ERROR_KEY_INVALID_STRING:
1161+
return"The key is not a valid string.";
1162+
case AGMDB_ERROR_KEY_TOO_LONG:
1163+
return"The key string is too long.";
1164+
case AGMDB_ERROR_VALUE_INVALID_STRING:
1165+
return"The value is not a valid string.";
1166+
case AGMDB_ERROR_VALUE_TOO_LONG:
1167+
return"The value string is too long.";
1168+
1169+
case AGMDB_ERROR_HANDLE_NULL:
1170+
return"The agmdb_handler is NULL.";
1171+
case AGMDB_ERROR_DELETE_INVALID_ENTRY:
1172+
return"The AGMDB is deleting an invalid entry.";
1173+
case AGMDB_ERROR_NAME_NULL:
1174+
return"The name of AGMDB is NULL";
1175+
case AGMDB_ERROR_NAME_INVALID_STRING:
1176+
return"The name of AGMDB is not a valid string.";
1177+
1178+
case AGMDB_ERROR_SET_NEGATIVE_EXIPRE_TIME:
1179+
return"Set the expire time to a negative value.";
1180+
1181+
case AGMDB_ERROR_GET_BUFFER_NULL:
1182+
return"In get function, the buffer is NULL.";
1183+
case AGMDB_ERROR_GET_INVALID_BUFFER_LEN:
1184+
return"In get function, the length of buffer is an invalid number.";
1185+
case AGMDB_ERROR_GET_BUFFER_TOO_SMALL:
1186+
return"In get function, the buffer is too small to save the data.";
1187+
1188+
case AGMDB_ERROR_TIMELIST_LONG_NOTEQUEAL_SHM_CNT:
1189+
return"The size of expire time list does not equal to the entry counter in DB control block.";
1190+
case AGMDB_ERROR_GETALL_ARRAY_TOO_SMALL:
1191+
return"In getAll function, the array is too samll to save the data.";
1192+
}
1193+
}
1194+
10891195
/**
10901196
** Get the number of keys in a database.
10911197
** You have to get SHARED or EXCLUSIVE LOCK of the database before calling this function.

‎apache2/ag_mdb/ag_mdb_external.h‎

Lines changed: 16 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -19,6 +19,14 @@ extern "C" {
1919
** AG Memory Database Status Definition
2020
**========================================================
2121
*/
22+
/**
23+
** First Digit: equals 1 if it is an error code.
24+
** Second Digit: the module where the error happens.
25+
** 0 means lock, 1 means shared momory, 2 means the database.
26+
** Third Digit: the platform where the error happens.
27+
** 0 means general, 1 means LINUX, 2 means WINDOWS.
28+
** 4th & 5th Digit: the detailed error number.
29+
*/
2230
#defineAGMDB_SUCCESS 0
2331
#defineAGMDB_ERROR 10000
2432

@@ -31,7 +39,7 @@ extern "C" {
3139

3240
#defineAGMDB_ERROR_LOCK_WIN_NAME_INVALID_STRING 10200
3341
#defineAGMDB_ERROR_LOCK_WIN_MUTEX_CREATE_FAIL 10201
34-
#defineAGMDB_ERROR_LOCK_WIN_ONLY_ONE_LCOK_EXISTS 10202
42+
#defineAGMDB_ERROR_LOCK_WIN_ONLY_ONE_LOCK_EXISTS 10202
3543
#defineAGMDB_ERROR_LOCK_WIN_GET_MUTEX_FAIL 10203
3644
#defineAGMDB_ERROR_LOCK_WIN_RELEASE_MUTEX_FAIL 10204
3745

@@ -70,7 +78,7 @@ extern "C" {
7078
#defineAGMDB_ERROR_NAME_NULL 12015
7179
#defineAGMDB_ERROR_NAME_INVALID_STRING 12016
7280

73-
#defineAGMDB_ERROR_SET_NAGATIVE_EXIPRE_TIME 12017
81+
#defineAGMDB_ERROR_SET_NEGATIVE_EXIPRE_TIME 12017
7482

7583
#defineAGMDB_ERROR_GET_BUFFER_NULL 12018
7684
#defineAGMDB_ERROR_GET_INVALID_BUFFER_LEN 12019
@@ -247,7 +255,12 @@ int AGMDB_removeStale(struct agmdb_handler *dbm);
247255
** AG Memory Database Debug API
248256
**========================================================
249257
*/
250-
258+
/**
259+
** Get the detail information of an error.
260+
** @param error_no: the error code returned by a function.
261+
** return: The error information.
262+
*/
263+
constchar*AGMDB_getErrorInfo(interror_no);
251264
/**
252265
** Get the number of keys in a database.
253266
** You have to get SHARED or EXCLUSIVE LOCK of the database before calling this function.

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