sam_data_store (3) Linux Manual Page

sam_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 Also

sam_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