SAM_DATA_STORE(3) Corosync Cluster Engine Programmer's ManualSAM_DATA_STORE(3)NAMEsam_data_store - Store user data
SYNOPSIS
#include <corosync/sam.h>
cs_error_t sam_data_store (const void *data, size_t size);
DESCRIPTION
The sam_data_store function is used to store data, which survives
between instances.
The data parameter is pointer to memory with data to store. Data are
stored in newly allocated memory inside library, so caller can safely
remove them after call of function.
You can use NULL as parameter to remove and free previously saved data.
In this case size argument is ignored.
The size parameter is length of data.
Use sam_data_getsize(3) to find out length of stored data and
sam_data_restore(3) to restore stored data.
RETURN VALUE
This call return CS_OK value if successful, otherwise and error is
returned.
ERRORS
CS_ERR_BAD_HANDLE
component was not initialized by calling sam_initialize(3) or it
was finalized.
CS_ERR_NO_MEMORY
internal malloc/realloc failed because data are too large
CS_ERR_LIBRARY
some internal error appeared (mostly because communication with
parent process failed)
SEE ALSOsam_data_getsize(3), sam_data_restore(3)
CS_ERR_TRY_AGAIN Resource temporarily unavailable
CS_ERR_INVALID_PARAM Invalid argument
CS_ERR_ACCESS Permission denied
CS_ERR_LIBRARY The connection failed
CS_ERR_INTERRUPT System call inturrupted by a signal
CS_ERR_NOT_SUPPORTED The requested protocol/functuality not supported
CS_ERR_MESSAGE_ERROR Incorrect auth message received
CS_ERR_NO_MEMORY Not enough memory to completed the requested task
corosync Man Page 04/15/2010 SAM_DATA_STORE(3)
