zeekling/hiredis
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SetKeepAlive

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Keep client alive even though no command was sent to server for a long time.
This commit is contained in:
Allen.Dou 2013-04-19 11:26:43 +08:00
parent 63ce20dd15
commit 8d5bc445e5
2 changed files with 36 additions and 0 deletions
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2
hiredis.h
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@ -88,6 +88,8 @@
#define REDIS_READER_MAX_BUF (1024*16) /* Default max unused reader buffer. */ #define REDIS_READER_MAX_BUF (1024*16) /* Default max unused reader buffer. */
#define REDIS_KEEPALIVE_INTERVAL 15 /* seconds */
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif

34
net.c
View File

@ -113,6 +113,38 @@ static int redisSetBlocking(redisContext *c, int fd, int blocking) {
return REDIS_OK; return REDIS_OK;
} }
static int redisKeepAlive(redisContext *c,int fd,int interval) {
int val = 1;
if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &val, sizeof(val)) == -1){
__redisSetError(c,REDIS_ERR_OTHER,strerror(errno));
return REDIS_ERR;
}
val = interval;
if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof(val)) < 0) {
__redisSetError(c,REDIS_ERR_OTHER,strerror(errno));
return REDIS_ERR;
}
val = interval/3;
if (val == 0) val = 1;
if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof(val)) < 0) {
__redisSetError(c,REDIS_ERR_OTHER,strerror(errno));
return REDIS_ERR;
}
val = 3;
if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof(val)) < 0) {
__redisSetError(c,REDIS_ERR_OTHER,strerror(errno));
return REDIS_ERR;
}
return REDIS_OK;
}
static int redisSetTcpNoDelay(redisContext *c, int fd) { static int redisSetTcpNoDelay(redisContext *c, int fd) {
int yes = 1; int yes = 1;
if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &yes, sizeof(yes)) == -1) { if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &yes, sizeof(yes)) == -1) {
@ -241,6 +273,8 @@ int redisContextConnectTcp(redisContext *c, const char *addr, int port, struct t
goto error; goto error;
if (redisSetTcpNoDelay(c,s) != REDIS_OK) if (redisSetTcpNoDelay(c,s) != REDIS_OK)
goto error; goto error;
if (redisKeepAlive(c,s,REDIS_KEEPALIVE_INTERVAL) != REDIS_OK)
goto error;
c->fd = s; c->fd = s;
c->flags |= REDIS_CONNECTED; c->flags |= REDIS_CONNECTED;