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Merge pull request #286 from kanoi/api

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api.c in linux allow to open a closed socket in TIME_WAIT
This commit is contained in:
Con Kolivas 2012-08-04 21:48:23 -07:00
commit aa8cd17a9d
1 changed files with 16 additions and 0 deletions
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16
api.c
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@ -176,7 +176,9 @@ static const char *ALIVE = "Alive";
static const char *REJECTING = "Rejecting"; static const char *REJECTING = "Rejecting";
static const char *UNKNOWN = "Unknown"; static const char *UNKNOWN = "Unknown";
#define _DYNAMIC "D" #define _DYNAMIC "D"
#ifdef HAVE_OPENCL
static const char *DYNAMIC = _DYNAMIC; static const char *DYNAMIC = _DYNAMIC;
#endif
static const char *YES = "Y"; static const char *YES = "Y";
static const char *NO = "N"; static const char *NO = "N";
@ -3197,6 +3199,20 @@ void api(int api_thr_id)
serv.sin_port = htons(port); serv.sin_port = htons(port);
#ifndef WIN32
// On linux with SO_REUSEADDR, bind will get the port if the previous
// socket is closed (even if it is still in TIME_WAIT) but fail if
// another program has it open - which is what we want
int optval = 1;
// If it doesn't work, we don't really care - just show a debug message
if (SOCKETFAIL(setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *)(&optval), sizeof(optval))))
applog(LOG_DEBUG, "API setsockopt SO_REUSEADDR failed (ignored): %s", SOCKERRMSG);
#else
// On windows a 2nd program can bind to a port>1024 already in use unless
// SO_EXCLUSIVEADDRUSE is used - however then the bind to a closed port
// in TIME_WAIT will fail until the timeout - so we leave the options alone
#endif
// try for more than 1 minute ... in case the old one hasn't completely gone yet // try for more than 1 minute ... in case the old one hasn't completely gone yet
bound = 0; bound = 0;
bindstart = time(NULL); bindstart = time(NULL);