srdb1/db_pool.c File Reference

Functions for managing a pool of database connections. More...

#include "../../dprint.h"
#include "db_pool.h"

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Functions

• struct pool_con * pool_get (const struct db_id *id)

  Search the pool for a connection with the identifier equal to the id.
  

• void pool_insert (struct pool_con *con)

  Insert a new connection into the pool.
  

• int pool_remove (struct pool_con *con)

  Release a connection from the pool, the function would return 1 when if the connection is not referenced anymore and thus can be closed and deleted by the backend.
  

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Detailed Description

Definition in file srdb1/db_pool.c.

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Function Documentation

struct pool_con* pool_get

(

const struct db_id *

id

)

[read]

Parameters:

id

searched id

Returns:

the connection if it could be found, NULL otherwise

Definition at line 43 of file srdb1/db_pool.c.

References cmp_db_id(), pool_con::id, pool_con::next, and pool_con::ref.

Referenced by db_do_init2().

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void pool_insert

(

struct pool_con *

con

)

Parameters:

con

the inserted connection

Definition at line 68 of file srdb1/db_pool.c.

References pool_con::next.

Referenced by db_do_init2().

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int pool_remove

(

struct pool_con *

con

)

The function returns 0 if the connection should still be kept open because some other module is still using it. The function returns -1 if the connection is not in the pool.

Parameters:

con

connection that should be removed

Returns:

1 if the connection can be freed, 0 if it can't be freed, -1 if not found

Definition at line 87 of file srdb1/db_pool.c.

References pool_con::next, and pool_con::ref.

Referenced by db_do_close().

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