Standards
| Standards / Extensions |
C or C++ |
Dependencies |
|---|
| |
both |
|
Format
#include <sys/_Elmarm4.h>
arm_error_t arm_start_transaction(
/* [in] */ arm_appl_id_t *transaction_id,
/* [in] */ arm_correlator_t *parent_correlator_ptr,
/* [in] */ arm_int32_t flags,
/* [in] */ arm_buffer4_t *buffer4,
/* [out] */ arm_start_handle_t *start_handle,
/* [out] */ arm_correlator_t *current_correlator_ptr
);
General description
Use arm_start_transaction()
to mark the beginning of execution of a transaction. The transaction
must be identified as a member of a transaction type that was previously
defined by arm_init_transaction_type(). There can be any number of
transactions executing simultaneously.
- transaction_id
- The handle passed to or returned by arm_init_transaction_type()
for the transaction type.
- parent_correlator_ptr
- A pointer to the parent correlator for this transaction. If there
is no parent correlator, a null value should be passed.
- flags
- One flag bit is defined:. ARM_START_FLAG_TRACE_REQUEST requests
tracing of the transaction. Currently eWLM has no support to trace
transactions and ignores the flag. All other flag bits are reserved
and must be zero.
- buffer4
- A pointer to a buffer that identifies one or more sub-buffers
with additional data. A null value can be specified if no additional
data is required.
- start_handle
- A pointer to a 64-bit area where a handle that identifies the
transaction is returned. The handle must be passed to other transaction-level
interfaces such as arm_stop_transaction(). The handle is valid only
within the caller's process.
- current_correlator_ptr
- A pointer to a buffer into which eWLM will store a correlator
for the transaction. The length of the buffer must be at least the
length returned from the arm_get_correlator_max_length() function.
Returned value
On success, arm_init_application
returns ARM_RC_SUCCESS. On failure, the errno and return code are
set to indicate the error. See
Return code for
the list of all possible return codes. On failure, the application_id
is set to a dummy value which can be used for later calls to other
interfaces. Those interfaces will recognize that the application_id
contains a dummy value and return without performing any action.
- Error Code
- Description
- EFAULT
- A parameter of this service contained an address that was not
accessible to the caller.
- EINVAL
- A parameter of this service contained a value that was not valid.
- EMVSARMERROR
- An ARM error occurred. Refer to the return code for the specific
error.
- EPERM
- The caller does not have the appropriate privileges. The return
code is set to ARM_RC_AUTH_ERROR.
- EMVSSAF2ERR
- An error occurred in the security product.