+# vim: expandtab ts=4 sw=4:
# ==================================================================================
# Copyright (c) 2019 Nokia
# Copyright (c) 2018-2019 AT&T Intellectual Property.
_rmr_alloc_msg.restype = POINTER(rmr_mbuf_t)
-def rmr_alloc_msg(vctx, size, payload=None, gen_transaction_id=False, mtype=None, meid=None):
+def rmr_alloc_msg(vctx, size, payload=None, gen_transaction_id=False, mtype=None, meid=None, sub_id=None):
"""
Refer to the rmr C documentation for rmr_alloc_msg
extern rmr_mbuf_t* rmr_alloc_msg(void* vctx, int size)
"""
sbuf = _rmr_alloc_msg(vctx, size)
- # make sure it's good
try:
+ # make sure the alloc worked
sbuf.contents
+
+ # set specified fields
if payload:
set_payload_and_length(payload, sbuf)
if meid:
rmr_set_meid(sbuf, meid)
+ if sub_id:
+ sbuf.contents.sub_id = sub_id
+
return sbuf
except ValueError:
raise BadBufferAllocation
+_rmr_realloc_payload = rmr_c_lib.rmr_realloc_payload
+_rmr_realloc_payload.argtypes = [POINTER(rmr_mbuf_t), c_int, c_int, c_int] # new_len, copy, clone
+_rmr_realloc_payload.restype = POINTER(rmr_mbuf_t)
+
+
+def rmr_realloc_payload(ptr_mbuf, new_len, copy=False, clone=False):
+ """
+ Refer to the rmr C documentation for rmr_realloc_payload().
+ extern rmr_mbuf_t* rmr_realloc_payload(rmr_mbuf_t*, int, int, int)
+ """
+ return _rmr_realloc_payload(ptr_mbuf, new_len, copy, clone)
+
+
_rmr_free_msg = rmr_c_lib.rmr_free_msg
_rmr_free_msg.argtypes = [c_void_p]
_rmr_free_msg.restype = None
def rmr_free_msg(mbuf):
"""
Refer to the rmr C documentation for rmr_free_msg
- extern void rmr_free_msg( rmr_mbuf_t* mbuf )
+ extern void rmr_free_msg(rmr_mbuf_t* mbuf )
"""
if mbuf is not None:
_rmr_free_msg(mbuf)
_rmr_rts_msg.restype = POINTER(rmr_mbuf_t)
-def rmr_rts_msg(vctx, ptr_mbuf):
+def rmr_rts_msg(vctx, ptr_mbuf, payload=None, mtype=None):
"""
Refer to the rmr C documentation for rmr_rts_msg
extern rmr_mbuf_t* rmr_rts_msg(void* vctx, rmr_mbuf_t* msg)
+
+ additional features beyond c-rmr:
+ if payload is not None, attempts to set the payload
+ if mtype is not None, sets the sbuf's message type
"""
+
+ if payload:
+ set_payload_and_length(payload, ptr_mbuf)
+
+ if mtype:
+ ptr_mbuf.contents.mtype = mtype
+
return _rmr_rts_msg(vctx, ptr_mbuf)
ptr_mbuf: ctypes c_void_p
Pointer to an rmr message buffer
"""
+ if rmr_payload_size(ptr_mbuf) < len(byte_str): # existing message payload too small
+ ptr_mbuf = rmr_realloc_payload(ptr_mbuf, len(byte_str), True)
+
memmove(ptr_mbuf.contents.payload, byte_str, len(byte_str))
ptr_mbuf.contents.len = len(byte_str)