hiredis 訂閱發佈

原文鏈接：https://blog.csdn.net/sahusoft/article/details/9428347

hiredis發佈/訂閱示例

 

轉：https://blog.csdn.net/sahusoft/article/details/9428347

代碼：

1. #include <stdio.h>

2. #include <stdlib.h>

3. #include <string.h>

4. #include <signal.h>

5. #include "hiredis.h"

6. #include "async.h"

7. #include "adapters/libevent.h"

8.  

9. void subCallback(redisAsyncContext *c, void *r, void *priv) {

10. redisReply *reply = r;

11. if (reply == NULL) return;

12. if ( reply->type == REDIS_REPLY_ARRAY && reply->elements == 3 ) {

13. if ( strcmp( reply->element[0]->str, "subscribe" ) != 0 ) {

14. printf( "Received[%s] channel %s: %s\n",

15. (char*)priv,

16. reply->element[1]->str,

17. reply->element[2]->str );

18. }

19. }

20. }

21.  

22. void connectCallback(const redisAsyncContext *c, int status) {

23. if (status != REDIS_OK) {

24. printf("Error: %s\n", c->errstr);

25. return;

26. }

27. printf("Connected...\n");

28. }

29.  

30. void disconnectCallback(const redisAsyncContext *c, int status) {

31. if (status != REDIS_OK) {

32. printf("Error: %s\n", c->errstr);

33. return;

34. }

35. printf("Disconnected...\n");

36. }

37.  

38. int main (int argc, char **argv) {

39. signal(SIGPIPE, SIG_IGN);

40. struct event_base *base = event_base_new();

41.  

42. redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379);

43. if (c->err) {

44. /* Let *c leak for now... */

45. printf("Error: %s\n", c->errstr);

46. return 1;

47. }

48.  

49. redisLibeventAttach(c,base);

50. redisAsyncSetConnectCallback(c,connectCallback);

51. redisAsyncSetDisconnectCallback(c,disconnectCallback);

52. redisAsyncCommand(c, subCallback, (char*) "sub", "SUBSCRIBE foo");

53.  

54. event_base_dispatch(base);

55. return 0;

56. }

 

編譯：

gcc example-subpub.c libhiredis.a adapters/libevent.h -levent

 

測試：

訂閱端

./a.out

發佈端

./redis-cli PUBLISH foo bar