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Berkeley DB: db_env_set_func_ftruncate
db_env_set_func_ftruncate
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#include <db.h>
int
db_env_set_func_ftruncate(int (*func_ftruncate)(int fd, off_t offset));
Description: db_env_set_func_ftruncate
The Berkeley DB library requires the ability to truncate a file.
The db_env_set_func_ftruncate method configures all operations performed by a process and
all of its threads of control, not operations confined to a single
database environment.
Although the db_env_set_func_ftruncate method may be called at any time during the life of
the application, it should normally be called before making calls to the
db_env_create or db_create methods.
The db_env_set_func_ftruncate method
returns a non-zero error value on failure
and 0 on success.
Parameters
- func_ftruncate
- The func_ftruncate parameter is the function which truncates a file.
The fd parameter is an open file descriptor on the file.
The ftruncate function must truncate the file to the byte
length specified by the offset parameter.
The func_ftruncate function must return the value of errno on
failure and 0 on success.
See Also
Run-time configuration
Copyright (c) 1996-2004 Sleepycat Software, Inc. - All rights reserved.
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