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Merge "logcat: test: run 256 simultaneous logcats" am: b15429c0ea

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am: 232b57c60b

Change-Id: I83fba7238ee3632211008b5d80080ff403efbda9
This commit is contained in:
Mark Salyzyn 2017-03-27 22:54:33 +00:00 committed by android-build-merger
commit c974c79c8c
1 changed files with 50 additions and 0 deletions
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50
logcat/tests/logcat_test.cpp
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@ -479,6 +479,56 @@ TEST(logcat, End_to_End) {
ASSERT_EQ(1, count);
}
TEST(logcat, End_to_End_multitude) {
pid_t pid = getpid();
log_time ts(CLOCK_MONOTONIC);
ASSERT_LT(0, __android_log_btwrite(0, EVENT_TYPE_LONG, &ts, sizeof(ts)));
FILE* fp[256]; // does this count as a multitude!
memset(fp, 0, sizeof(fp));
logcat_define(ctx[sizeof(fp) / sizeof(fp[0])]);
size_t num = 0;
do {
EXPECT_TRUE(NULL !=
(fp[num] = logcat_popen(
ctx[num], "logcat -v brief -b events -t 100")));
if (!fp[num]) {
fprintf(stderr,
"WARNING: limiting to %zu simultaneous logcat operations\n",
num);
break;
}
} while (++num < sizeof(fp) / sizeof(fp[0]));
char buffer[BIG_BUFFER];
size_t count = 0;
for (size_t idx = 0; idx < sizeof(fp) / sizeof(fp[0]); ++idx) {
if (!fp[idx]) break;
while (fgets(buffer, sizeof(buffer), fp[idx])) {
int p;
unsigned long long t;
if ((2 != sscanf(buffer, "I/[0] ( %d): %llu", &p, &t)) ||
(p != pid)) {
continue;
}
log_time tx((const char*)&t);
if (ts == tx) {
++count;
}
}
logcat_pclose(ctx[idx], fp[idx]);
}
ASSERT_EQ(num, count);
}
static int get_groups(const char* cmd) {
FILE* fp;
logcat_define(ctx);