agent_init concurrent running question
| От | Jov |
|---|---|
| Тема | agent_init concurrent running question |
| Дата | |
| Msg-id | CADyrUxOxq6zb+jeM-NUVnfXFy04JKOjRNYy7GNmYP_Fcp90dFw@mail.gmail.com обсуждение исходный текст |
| Ответы |
Re: agent_init concurrent running question
|
| Список | pgsql-hackers |
hello,I am reading the pool manager code,and have some problem:
in poolmgr.c function agent_init():
if (agent->pool)
agent_release_connections(agent, false);
......
#ifdef XCP
/* find database */
agent->pool = find_database_pool(database, user_name);
/* create if not found */
if (agent->pool == NULL)
agent->pool = create_database_pool(database, user_name);
in concurrent running,this function with the same dbname and username，create_database_pool(database, user_name) may be run twice,so there may be more than one DatabasePool in the databasePools list? But find_database_pool(database, user_name) will always return the first find,other may be not used,there may be memory leak?
and why this function call agent_release_connections,and then use find_database_pool to get a new pool? For concurrent running,is it possible one agent release the connections which other agent still is in use?
thanks!
Jov
blog: http:amutu.com/blog
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