- Berkeley DB Reference Guide:
- Programmer Notes
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There are a few interfaces that support run-time configuration of Berkeley DB. First is a group of interfaces that allow applications to intercept Berkeley DB requests for underlying library or system call functionality:
db_env_set_func_close db_env_set_func_dirfree db_env_set_func_dirlist db_env_set_func_exists db_env_set_func_free db_env_set_func_fsync db_env_set_func_ioinfo db_env_set_func_malloc db_env_set_func_map db_env_set_func_open db_env_set_func_read db_env_set_func_realloc db_env_set_func_seek db_env_set_func_sleep db_env_set_func_unlink db_env_set_func_unmap db_env_set_func_write db_env_set_func_yield
These interfaces are available only from the Berkeley DB C language API.
In addition, there are a few interfaces that allow applications to reconfigure, on an application-wide basis, Berkeley DB behaviors.
DB_ENV->set_mutexlocks db_env_set_pageyield db_env_set_panicstate db_env_set_region_init db_env_set_tas_spins
These interfaces are available from all the Berkeley DB programmatic APIs.
A not-uncommon problem for applications is the new API in Solaris 2.6 for manipulating large files. Because this API was not part of Solaris 2.5, it is difficult to create a single binary that takes advantage of the large file functionality in Solaris 2.6, but still runs on Solaris 2.5. Example code that supports this is included in the Berkeley DB distribution.
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