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Add SIGINT handler to cli --intrinsic-latency

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If we run a long latency session and want to Ctrl-C out of it,
it's nice to still get the summary output at the end.
This commit is contained in:
Matt Stancliff 2014-06-17 10:12:57 -04:00
parent 2c17591224
commit 20c2a38ad0
1 changed files with 8 additions and 1 deletions
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9
src/redis-cli.c
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@ -95,6 +95,7 @@ static struct config {
char *eval; char *eval;
} config; } config;
static volatile sig_atomic_t force_cancel_loop = 0;
static void usage(); static void usage();
static void slaveMode(void); static void slaveMode(void);
char *redisGitSHA1(void); char *redisGitSHA1(void);
@ -1807,11 +1808,17 @@ unsigned long compute_something_fast(void) {
return output; return output;
} }
static void intrinsicLatencyModeStop(int s) {
REDIS_NOTUSED(s);
force_cancel_loop = 1;
}
static void intrinsicLatencyMode(void) { static void intrinsicLatencyMode(void) {
long long test_end, run_time, max_latency = 0, runs = 0; long long test_end, run_time, max_latency = 0, runs = 0;
run_time = config.intrinsic_latency_duration*1000000; run_time = config.intrinsic_latency_duration*1000000;
test_end = ustime() + run_time; test_end = ustime() + run_time;
signal(SIGINT, intrinsicLatencyModeStop);
while(1) { while(1) {
long long start, end, latency; long long start, end, latency;
@ -1829,7 +1836,7 @@ static void intrinsicLatencyMode(void) {
printf("Max latency so far: %lld microseconds.\n", max_latency); printf("Max latency so far: %lld microseconds.\n", max_latency);
} }
if (end > test_end) { if (force_cancel_loop || end > test_end) {
printf("\n%lld total runs (avg %lld microseconds per run).\n", printf("\n%lld total runs (avg %lld microseconds per run).\n",
runs, run_time/runs); runs, run_time/runs);
printf("Worst run took %.02fx times the average.\n", printf("Worst run took %.02fx times the average.\n",