torque
79a45fd2e3
subrepo: subdir: "deps/nats.c" merged: "66cec7f" upstream: origin: "https://github.com/nats-io/nats.c.git" branch: "v3.6.1" commit: "66cec7f" git-subrepo: version: "0.4.6" commit: "b8b46501e"
123 lines
3.8 KiB
C
123 lines
3.8 KiB
C
// Copyright 2015-2022 The NATS Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef MSG_H_
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#define MSG_H_
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#include "status.h"
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#include "gc.h"
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#define HDR_LINE_PRE "NATS/1.0"
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#define HDR_LINE_PRE_LEN (8)
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#define HDR_LINE HDR_LINE_PRE _CRLF_
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#define HDR_LINE_LEN (10)
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#define STATUS_HDR "Status"
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#define DESCRIPTION_HDR "Description"
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#define NO_RESP_STATUS "503"
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#define NOT_FOUND_STATUS "404"
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#define REQ_TIMEOUT "408"
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#define CTRL_STATUS "100"
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#define HDR_STATUS_LEN (3)
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#define natsMsg_setNeedsLift(m) ((m)->flags |= (1 << 0))
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#define natsMsg_needsLift(m) (((m)->flags & (1 << 0)) != 0)
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#define natsMsg_clearNeedsLift(m) ((m)->flags &= ~(1 << 0))
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#define natsMsg_setAcked(m) ((m)->flags |= (1 << 1))
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#define natsMsg_isAcked(m) (((m)->flags & (1 << 1)) != 0)
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#define natsMsg_clearAcked(m) ((m)->flags &= ~(1 << 1))
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#define natsMsg_setNoDestroy(m) ((m)->flags |= (1 << 2))
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#define natsMsg_isNoDestroy(m) (((m)->flags & (1 << 2)) != 0)
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#define natsMsg_clearNoDestroy(m) ((m)->flags &= ~(1 << 2))
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#define natsMsg_setTimeout(m) ((m)->flags |= (1 << 3))
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#define natsMsg_isTimeout(m) (((m)->flags & (1 << 3)) != 0)
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#define natsMsg_clearTimeout(m) ((m)->flags &= ~(1 << 3))
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#define natsMsg_dataAndHdrLen(m) ((m)->dataLen + (m)->hdrLen)
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struct __natsMsg
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{
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natsGCItem gc;
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// The message is allocated as a single memory block that contains
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// this structure and enough space for the headers/payload.
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// Headers, if any, start after the 'next' pointer, followed by
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// the message payload.
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const char *subject;
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const char *reply;
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char *hdr;
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natsStrHash *headers;
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const char *data;
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int dataLen;
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int hdrLen;
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int wsz;
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int flags;
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uint64_t seq;
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int64_t time;
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// subscription (needed when delivery done by connection,
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// or for JetStream).
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struct __natsSubscription *sub;
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// Must be last field!
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struct __natsMsg *next;
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// Nothing after this: the message headers/payload goes there.
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};
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struct __natsHeaderValue;
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typedef struct __natsHeaderValue
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{
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char *value;
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bool needFree;
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struct __natsHeaderValue *next;
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} natsHeaderValue;
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int
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natsMsgHeader_encodedLen(natsMsg *msg);
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natsStatus
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natsMsgHeader_encode(natsBuffer *buf, natsMsg *msg);
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void
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natsMsg_init(natsMsg *msg,
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const char *subject,
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const char *data, int dataLen);
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natsStatus
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natsMsg_create(natsMsg **newMsg,
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const char *subject, int subjLen,
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const char *reply, int replyLen,
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const char *buf, int bufLen, int hdrLen);
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natsStatus
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natsMsg_createWithPadding(natsMsg **newMsg,
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const char *subject, int subjLen,
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const char *reply, int replyLen,
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const char *buf, int bufLen, int bufPaddingSize,
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int hdrLen);
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void
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natsMsg_freeHeaders(natsMsg *msg);
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// This needs to follow the nats_FreeObjectCb prototype (see gc.h)
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void
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natsMsg_free(void *object);
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#endif /* MSG_H_ */
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