// 动态加载 libpg.dll 库
static void __pgsql_dll_load(void)
{
if (__pgsql_dll != NULL)
{
logger("pgsql(%s) has been loaded!", __pgsql_path.c_str());
return;
}
const char* path;
const char* ptr = acl::db_handle::get_loadpath();
if (ptr)
path = ptr;
else
#ifdef ACL_WINDOWS
path = "libpg.dll";
#else
path = "libpg.so";
#endif
__pgsql_dll = acl_dlopen(path);
if (__pgsql_dll == NULL)
logger_fatal("load %s error: %s", path, acl_dlerror());
// 记录动态库路径，以便于在动态库卸载时输出库路径名
__pgsql_path = path;
__dbconnect = (PQconnectdb_fn) acl_dlsym(__pgsql_dll, "PQconnectdb");
if (__dbconnect == NULL)
logger_fatal("load PQconnectdb from %s error %s",
path, acl_dlerror());
__dbstatus = (PQstatus_fn) acl_dlsym(__pgsql_dll, "PQstatus");
if (__dbstatus == NULL)
logger_fatal("load PQstatus from %s error %s",
path, acl_dlerror());
__dbexec = (PQexec_fn) acl_dlsym(__pgsql_dll, "PQexec");
if (__dbexec == NULL)
logger_fatal("load PQexec from %s error %s",
path, acl_dlerror());
__dbresult_status = (PQresultStatus_fn)
acl_dlsym(__pgsql_dll, "PQresultStatus");
if (__dbresult_status == NULL)
logger_fatal("load PQresultStatus from %s error %s",
path, acl_dlerror());
__dberror_message = (PQerrorMessage_fn)
acl_dlsym(__pgsql_dll, "PQerrorMessage");
if (__dberror_message == NULL)
logger_fatal("load PQerrorMessage from %s error %s",
path, acl_dlerror());
__dbfinish = (PQfinish_fn) acl_dlsym(__pgsql_dll, "PQfinish");
if (__dbfinish == NULL)
logger_fatal("load PQfinish_fn from %s error %s",
path, acl_dlerror());
__dbclear = (PQclear_fn) acl_dlsym(__pgsql_dll, "PQclear");
if (__dbclear == NULL)
logger_fatal("load PQclear from %s error %s",
path, acl_dlerror());
__dbnfields = (PQnfields_fn) acl_dlsym(__pgsql_dll, "PQnfields");
if (__dbnfields == NULL)
logger_fatal("loas PQnfields from %s error %s",
path, acl_dlerror());
__dbfname = (PQfname_fn) acl_dlsym(__pgsql_dll, "PQfname");
if (__dbfname == NULL)
logger_fatal("load PQfname from %s error %s",
path, acl_dlerror());
__dbntuples = (PQntuples_fn) acl_dlsym(__pgsql_dll, "PQntuples");
if (__dbntuples == NULL)
logger_fatal("load PQntuples from %s error %s",
path, acl_dlerror());
__dbget_value = (PQgetvalue_fn) acl_dlsym(__pgsql_dll, "PQgetvalue");
if (__dbget_value == NULL)
logger_fatal("load PQgetvalue from %s error %s",
path, acl_dlerror());
__dbcmd_tuples = (PQcmdTuples_fn) acl_dlsym(__pgsql_dll, "PQcmdTuples");
if (__dbcmd_tuples == NULL)
logger_fatal("load PQcmdTuples from %s error %s",
path, acl_dlerror());
logger("%s loaded!", path);
atexit(__pgsql_dll_unload);
}
// 动态加载 libmysql.dll 库
static void __mysql_dll_load(void)
{
if (__mysql_dll != NULL)
{
logger("mysql(%s) has been loaded!", __mysql_path.c_str());
return;
}
const char* path;
const char* ptr = acl::db_handle::get_loadpath();
if (ptr)
path = ptr;
else
#ifdef ACL_WINDOWS
path = "libmysql.dll";
#else
path = "libmysqlclient_r.so";
#endif
__mysql_dll = acl_dlopen(path);
if (__mysql_dll == NULL)
logger_fatal("load %s error: %s", path, acl_dlerror());
// 记录动态库路径，以便于在动态库卸载时输出库路径名
__mysql_path = path;
__mysql_libversion = (mysql_libversion_fn)
acl_dlsym(__mysql_dll, "mysql_get_client_version");
if (__mysql_libversion == NULL)
logger_fatal("load mysql_get_client_version from %s error: %s",
path, acl_dlerror());
__mysql_client_info = (mysql_client_info_fn)
acl_dlsym(__mysql_dll, "mysql_get_client_info");
if (__mysql_client_info == NULL)
logger_fatal("load mysql_get_client_info from %s error: %s",
path, acl_dlerror());
__mysql_init = (mysql_init_fn) acl_dlsym(__mysql_dll, "mysql_init");
if (__mysql_init == NULL)
logger_fatal("load mysql_init from %s error: %s",
path, acl_dlerror());
__mysql_open = (mysql_open_fn)
acl_dlsym(__mysql_dll, "mysql_real_connect");
if (__mysql_open == NULL)
logger_fatal("load mysql_real_connect from %s error: %s",
path, acl_dlerror());
__mysql_close = (mysql_close_fn)
acl_dlsym(__mysql_dll, "mysql_close");
if (__mysql_close == NULL)
logger_fatal("load mysql_close from %s error: %s",
path, acl_dlerror());
__mysql_options = (mysql_options_fn)
acl_dlsym(__mysql_dll, "mysql_options");
if (__mysql_options == NULL)
logger_fatal("load mysql_options from %s error: %s",
path, acl_dlerror());
__mysql_autocommit = (mysql_autocommit_fn)
acl_dlsym(__mysql_dll, "mysql_autocommit");
if (__mysql_autocommit == NULL)
logger_fatal("load mysql_autocommit from %s error: %s",
path, acl_dlerror());
__mysql_errno = (mysql_errno_fn)
acl_dlsym(__mysql_dll, "mysql_errno");
if (__mysql_errno == NULL)
logger_fatal("load mysql_errno from %s error: %s",
path, acl_dlerror());
__mysql_error = (mysql_error_fn)
acl_dlsym(__mysql_dll, "mysql_error");
if (__mysql_error == NULL)
logger_fatal("load mysql_error from %s error: %s",
path, acl_dlerror());
__mysql_query = (mysql_query_fn)
acl_dlsym(__mysql_dll, "mysql_query");
if (__mysql_query == NULL)
logger_fatal("load mysql_query from %s error: %s",
path, acl_dlerror());
__mysql_num_fields = (mysql_num_fields_fn)
acl_dlsym(__mysql_dll, "mysql_num_fields");
if (__mysql_num_fields == NULL)
logger_fatal("load mysql_num_fields from %s error: %s",
path, acl_dlerror());
__mysql_fetch_fields = (mysql_fetch_fields_fn)
acl_dlsym(__mysql_dll, "mysql_fetch_fields");
if (__mysql_fetch_fields == NULL)
logger_fatal("load mysql_fetch_fields from %s error: %s",
path, acl_dlerror());
__mysql_fetch_row = (mysql_fetch_row_fn)
acl_dlsym(__mysql_dll, "mysql_fetch_row");
if (__mysql_fetch_row == NULL)
logger_fatal("load mysql_fetch_row from %s error: %s",
path, acl_dlerror());
__mysql_store_result = (mysql_store_result_fn)
acl_dlsym(__mysql_dll, "mysql_store_result");
if (__mysql_store_result == NULL)
logger_fatal("load mysql_store_result from %s error: %s",
path, acl_dlerror());
__mysql_num_rows = (mysql_num_rows_fn)
acl_dlsym(__mysql_dll, "mysql_num_rows");
if (__mysql_num_rows == NULL)
logger_fatal("load mysql_num_rows from %s error: %s",
path, acl_dlerror());
__mysql_free_result = (mysql_free_result_fn)
acl_dlsym(__mysql_dll, "mysql_free_result");
if (__mysql_free_result == NULL)
logger_fatal("load mysql_free_result from %s error: %s",
path, acl_dlerror());
__mysql_affected_rows = (mysql_affected_rows_fn)
acl_dlsym(__mysql_dll, "mysql_affected_rows");
if (__mysql_affected_rows == NULL)
logger_fatal("load mysql_affected_rows from %s error: %s",
path, acl_dlerror());
__mysql_set_character_set = (mysql_set_character_set_fn)
acl_dlsym(__mysql_dll, "mysql_set_character_set");
if (__mysql_affected_rows == NULL)
logger_fatal("load mysql_set_character_set_fn %s error: %s",
path, acl_dlerror());
__mysql_character_set_name = (mysql_character_set_name_fn)
acl_dlsym(__mysql_dll, "mysql_character_set_name");
if (__mysql_affected_rows == NULL)
logger_fatal("load mysql_character_set_name from %s error: %s",
path, acl_dlerror());
__mysql_thread_init = (mysql_thread_init_fn)
acl_dlsym(__mysql_dll, "mysql_thread_init");
if (__mysql_thread_init == NULL)
logger_warn("load mysql_thread_init from %s error: %s",
path, acl_dlerror());
__mysql_thread_end = (mysql_thread_end_fn)
acl_dlsym(__mysql_dll, "mysql_thread_end");
if (__mysql_thread_end == NULL)
logger_warn("load mysql_thread_end from %s error: %s",
path, acl_dlerror());
__mysql_server_init = (mysql_server_init_fn)
acl_dlsym(__mysql_dll, "mysql_server_init");
if (__mysql_server_init == NULL)
logger_warn("load mysql_server_init from %s error: %s",
path, acl_dlerror());
__mysql_server_end = (mysql_server_end_fn)
acl_dlsym(__mysql_dll, "mysql_server_end");
if (__mysql_server_end == NULL)
logger_warn("load mysql_server_end from %s error: %s",
path, acl_dlerror());
logger("%s loaded!", path);
atexit(__mysql_dll_unload);
}
