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387 lines
8.8 KiB
C++
387 lines
8.8 KiB
C++
// pgsql.cpp : 定义控制台应用程序的入口点。
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//
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#include "acl_cpp/lib_acl.hpp"
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const char* CREATE_TBL =
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"create table group_tbl\r\n"
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"(\r\n"
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"group_name varchar(128) not null,\r\n"
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"uvip_tbl varchar(32) not null default 'uvip_tbl',\r\n"
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"access_tbl varchar(32) not null default 'access_tbl',\r\n"
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"access_week_tbl varchar(32) not null default 'access_week_tbl',\r\n"
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"access_month_tbl varchar(32) not null default 'access_month_tbl',\r\n"
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"update_date date not null default '1970-01-01',\r\n"
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"disable integer not null default 0,\r\n"
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"add_by_hand integer not null default 0,\r\n"
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"class_level integer not null default 0,\r\n"
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"primary key(group_name, class_level)\r\n"
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")";
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static bool tbl_create(const char* dbaddr, const char* dbname,
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const char* dbuser, const char* dbpass)
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{
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acl::pgsql_conf conf(dbaddr, dbname);
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conf.set_dbuser(dbuser).set_dbpass(dbpass);
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acl::db_pgsql db(conf);
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if (db.open() == false)
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{
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printf("open %s@pgsql error, dbuser: %s, dbpass: %s\r\n",
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dbaddr, dbuser, dbpass);
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return false;
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}
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if (db.tbl_exists("group_tbl"))
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{
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printf("table exist\r\n");
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return (true);
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}
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else if (db.sql_update(CREATE_TBL) == false)
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{
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printf("sql error\r\n");
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return (false);
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}
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else
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{
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printf("create table ok\r\n");
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return (true);
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}
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}
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// 添加表数据
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static bool tbl_insert(acl::db_handle& db, int n)
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{
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acl::query query;
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query.create_sql("insert into group_tbl(group_name, uvip_tbl,"
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" update_date) values(:group, :test, :date)")
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.set_format("group", "group:%d", n)
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.set_parameter("test", "test")
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.set_date("date", time(NULL), "%Y-%m-%d");
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if (db.exec_update(query) == false)
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return (false);
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const acl::db_rows* result = db.get_result();
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if (result)
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{
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const std::vector<acl::db_row*>& rows = result->get_rows();
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for (size_t i = 0; i < rows.size(); i++)
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{
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const acl::db_row* row = rows[i];
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for (size_t j = 0; j < row->length(); j++)
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printf("%s, ", (*row)[j]);
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printf("\r\n");
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}
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}
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db.free_result();
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return (true);
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}
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// 查询表数据
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static int tbl_select(acl::db_handle& db, int n)
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{
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acl::query query;
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query.create_sql("select * from group_tbl where group_name=:group"
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" and uvip_tbl=:test")
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.set_format("group", "group:%d", n)
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.set_format("test", "test");
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if (db.exec_select(query) == false)
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{
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printf("select sql error\r\n");
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return (-1);
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}
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printf("\r\n---------------------------------------------------\r\n");
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// 列出查询结果方法一
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const acl::db_rows* result = db.get_result();
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if (result)
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{
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const std::vector<acl::db_row*>& rows = result->get_rows();
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for (size_t i = 0; i < rows.size(); i++)
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{
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if (n > 100)
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continue;
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const acl::db_row* row = rows[i];
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for (size_t j = 0; j < row->length(); j++)
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printf("%s, ", (*row)[j]);
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printf("\r\n");
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}
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}
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// 列出查询结果方法二
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for (size_t i = 0; i < db.length(); i++)
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{
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if (n > 100)
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continue;
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const acl::db_row* row = db[i];
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// 取出该行记录中某个字段的值
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const char* ptr = (*row)["group_name"];
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if (ptr == NULL)
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{
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printf("error, no group name\r\n");
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continue;
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}
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printf("group_name=%s: ", ptr);
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for (size_t j = 0; j < row->length(); j++)
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printf("%s, ", (*row)[j]);
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printf("\r\n");
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}
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// 列出查询结果方法三
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const std::vector<acl::db_row*>* rows = db.get_rows();
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if (rows)
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{
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std::vector<acl::db_row*>::const_iterator cit = rows->begin();
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for (; cit != rows->end(); cit++)
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{
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if (n > 100)
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continue;
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const acl::db_row* row = *cit;
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for (size_t j = 0; j < row->length(); j++)
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printf("%s, ", (*row)[j]);
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printf("\r\n");
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}
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}
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int ret = (int) db.length();
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// 释放查询结果
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db.free_result();
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return (ret);
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}
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// 删除表数据
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static bool tbl_delete(acl::db_handle& db, int n)
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{
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acl::query query;
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query.create_sql("delete from group_tbl where group_name=:group")
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.set_format("group", "group:%d", n);
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if (db.exec_update(query) == false)
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{
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printf("delete sql error\r\n");
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return (false);
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}
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printf(">>%s<<\r\n", query.to_string().c_str());
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for (size_t i = 0; i < db.length(); i++)
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{
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const acl::db_row* row = db[i];
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for (size_t j = 0; j < row->length(); j++)
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printf("%s, ", (*row)[j]);
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printf("\r\n");
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}
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// 释放查询结果
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db.free_result();
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return (true);
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}
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//////////////////////////////////////////////////////////////////////////////
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class db_thread : public acl::thread
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{
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public:
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db_thread(acl::db_pool& dp, int max) : pool_(dp), max_(max) {}
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~db_thread() {}
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protected:
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void* run()
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{
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int n = 0;
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for (int i = 0; i < max_; i++)
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{
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acl::db_handle* db = pool_.peek_open();
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if (db == NULL)
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{
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printf("peek db connection error\r\n");
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break;
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}
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bool ret = tbl_insert(*db, i);
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if (ret)
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{
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printf(">>insert ok: i=%d, affected: %d\r",
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i, db->affect_count());
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n++;
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}
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else
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printf(">>insert error: i = %d\r\n", i);
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pool_.put(db);
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}
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printf("\r\n");
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printf(">>insert total: %d\r\n", n);
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getchar();
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n = 0;
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// 批量查询数据
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for (int i = 0; i < max_; i++)
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{
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acl::db_handle* db = pool_.peek_open();
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if (db == NULL)
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{
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printf("peek db connection error\r\n");
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break;
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}
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int ret = tbl_select(*db, i);
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if (ret >= 0)
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{
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n += ret;
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printf(">>select ok: i=%d, ret=%d\r", i, ret);
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}
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else
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printf(">>select error: i = %d\r\n", i);
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pool_.put(db);
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}
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printf("\r\n");
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printf(">>select total: %d\r\n", n);
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// 批量删除数据
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for (int i = 0; i < max_; i++)
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{
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acl::db_handle* db = pool_.peek_open();
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if (db == NULL)
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{
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printf("peek db connection error\r\n");
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break;
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}
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bool ret = tbl_delete(*db, i);
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if (ret)
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printf(">>delete ok: %d, affected: %d\r",
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i, (int) db->affect_count());
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else
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printf(">>delete error: i = %d\r\n", i);
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pool_.put(db);
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}
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printf("\r\n");
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return NULL;
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}
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private:
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acl::db_pool& pool_;
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int max_;
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};
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//////////////////////////////////////////////////////////////////////////////
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int main(void)
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{
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// WIN32 下需要调用此函数进行有关 SOCKET 的初始化
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acl::acl_cpp_init();
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// 允许将错误日志输出至屏幕
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acl::log::stdout_open(true);
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acl::string line;
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acl::stdin_stream in;
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acl::stdout_stream out;
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#if defined(_WIN32) || defined(_WIN64)
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const char* libname = "libpq.dll";
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#else
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const char* libname = "libpq.so";
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#endif
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acl::string path;
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// 因为采用动态加载的方式，所以需要应用给出 pgsql 客户端库所在的路径
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out.format("Enter %s load path: ", libname);
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if (in.gets(line) && !line.empty())
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#if defined(_WIN32) || defined(_WIN64)
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path.format("%s\\%s", line.c_str(), libname);
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#else
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path.format("%s/%s", line.c_str(), libname);
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#endif
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else
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path = libname;
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out.format("%s path: %s\r\n", libname, path.c_str());
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// 设置动态库加载的全路径
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acl::db_handle::set_loadpath(path);
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acl::string dbaddr("127.0.0.1:5432");
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acl::string dbname("acl_db"), dbuser, dbpass;
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out.format("Enter dbaddr [default: %s]: ", dbaddr.c_str());
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if (in.gets(line) && !line.empty())
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dbaddr = line;
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out.format("Enter dbname [default: %s]: ", dbname.c_str());
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if (in.gets(line) && !line.empty())
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dbname = line;
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out.format("Enter dbuser [default: %s]: ", dbuser.c_str());
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if (in.gets(line) && !line.empty())
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dbuser = line;
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out.format("Enter dbpass [default: %s]: ", dbpass.c_str());
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if (in.gets(line) && !line.empty())
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dbpass = line;
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out.format("dbname: %s, dbuser: %s, dbpass: %s\r\n",
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dbname.c_str(), dbuser.c_str(), dbpass.c_str());
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// 当数据表不存在时创建表
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if (tbl_create(dbaddr, dbname, dbuser, dbpass) == false)
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{
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printf("create table error\r\n");
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getchar();
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return 1;
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}
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//////////////////////////////////////////////////////////////////////
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out.puts("Enter any key to continue ...");
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(void) in.gets(line);
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// 连接池中最大连接数量限制，该值应和线程池中的最大线程数相等，
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// 以保证每个线程都可以获得一个连接
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int dblimit = 1;
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// 创建数据库连接池对象
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acl::pgsql_conf dbconf(dbaddr, dbname);
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dbconf.set_dbuser(dbuser).set_dbpass(dbpass).set_dblimit(dblimit);
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acl::db_pool* dp = new acl::pgsql_pool(dbconf);
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// 设置连接池中每个连接的空闲时间(秒)
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dp->set_idle(120);
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// 每个处理线程内部针对每个操作执行的次数
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int max = 10;
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// 创建多个线程
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std::vector<db_thread*> threads;
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for (int i = 0; i < dblimit; i++)
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{
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db_thread* thread = new db_thread(*dp, max);
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threads.push_back(thread);
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thread->set_detachable(false);
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thread->start();
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}
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// 等待所有工作线程退出
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std::vector<db_thread*>::iterator it;
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for (it = threads.begin(); it != threads.end(); ++it)
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{
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(*it)->wait(NULL);
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delete *it;
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}
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delete dp;
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printf("Enter any key to exit.\r\n");
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getchar();
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return 0;
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}
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