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A define to make Redis more helgrind friendly

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antirez 2010-01-15 05:16:12 -05:00
parent 1064ef8764
commit b04a5df979
1 changed files with 14 additions and 0 deletions
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14
redis.c
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@ -75,6 +75,11 @@
#include "lzf.h" /* LZF compression library */ #include "lzf.h" /* LZF compression library */
#include "pqsort.h" /* Partial qsort for SORT+LIMIT */ #include "pqsort.h" /* Partial qsort for SORT+LIMIT */
/* #define REDIS_HELGRIND_FRIENDLY */
#if defined(__GNUC__) && defined(REDIS_HELGRIND_FRIENDLY)
#warning "Remember to undef REDIS_HELGRIND_FRIENDLY before to commit"
#endif
/* Error codes */ /* Error codes */
#define REDIS_OK 0 #define REDIS_OK 0
#define REDIS_ERR -1 #define REDIS_ERR -1
@ -7664,6 +7669,15 @@ static void *IOThreadEntryPoint(void *arg) {
/* Get a new job to process */ /* Get a new job to process */
lockThreadedIO(); lockThreadedIO();
if (listLength(server.io_newjobs) == 0) { if (listLength(server.io_newjobs) == 0) {
#ifdef REDIS_HELGRIND_FRIENDLY
/* No new jobs? Wait and retry, because to be Helgrind
* (valgrind --tool=helgrind) what's needed is to take
* the same threads running instead to create/destroy threads
* as needed (otherwise valgrind will fail) */
unlockThreadedIO();
usleep(1); /* Give some time for the I/O thread to work. */
continue;
#endif
/* No new jobs in queue, exit. */ /* No new jobs in queue, exit. */
redisLog(REDIS_DEBUG,"Thread %lld exiting, nothing to do", redisLog(REDIS_DEBUG,"Thread %lld exiting, nothing to do",
(long long) pthread_self()); (long long) pthread_self());