From: Tao Xu <tao3.xu@intel.com>
To: mst@redhat.com, imammedo@redhat.com, eblake@redhat.com,
ehabkost@redhat.com, marcel.apfelbaum@gmail.com,
armbru@redhat.com, mdroth@linux.vnet.ibm.com, thuth@redhat.com,
lvivier@redhat.com
Cc: jingqi.liu@intel.com, tao3.xu@intel.com, fan.du@intel.com,
qemu-devel@nongnu.org, jonathan.cameron@huawei.com
Subject: [PATCH v16 04/14] util/cutils: Add qemu_strtotime_ns()
Date: Fri, 15 Nov 2019 15:53:42 +0800 [thread overview]
Message-ID: <20191115075352.17734-5-tao3.xu@intel.com> (raw)
In-Reply-To: <20191115075352.17734-1-tao3.xu@intel.com>
To convert strings with time suffixes to numbers, support time unit are
"ns" for nanosecond, "us" for microsecond, "ms" for millisecond or "s"
for second. Add test for qemu_strtotime_ns, test the input of basic,
time suffixes, float, invaild, trailing and overflow.
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Tao Xu <tao3.xu@intel.com>
---
Changes in v16:
- Update the test because precision is 64 bits
Changes in v15:
- Add a new patch to refactor do_strtosz() (Eduardo)
- use ARRAY_SIZE(suffixes) instead of hardcoding the
suffixes number (Eduardo)
---
include/qemu/cutils.h | 1 +
tests/test-cutils.c | 173 ++++++++++++++++++++++++++++++++++++++++++
util/cutils.c | 14 ++++
3 files changed, 188 insertions(+)
diff --git a/include/qemu/cutils.h b/include/qemu/cutils.h
index 48cf9bf776..befa94f2d4 100644
--- a/include/qemu/cutils.h
+++ b/include/qemu/cutils.h
@@ -185,5 +185,6 @@ int uleb128_decode_small(const uint8_t *in, uint32_t *n);
* *str1 is <, == or > than *str2.
*/
int qemu_pstrcmp0(const char **str1, const char **str2);
+int qemu_strtotime_ns(const char *nptr, const char **end, uint64_t *result);
#endif
diff --git a/tests/test-cutils.c b/tests/test-cutils.c
index 465514b85f..0ff1d816f1 100644
--- a/tests/test-cutils.c
+++ b/tests/test-cutils.c
@@ -2148,6 +2148,167 @@ static void test_qemu_strtosz_metric(void)
g_assert(endptr == str + 6);
}
+static void test_qemu_strtotime_ns_simple(void)
+{
+ const char *str;
+ const char *endptr;
+ int err;
+ uint64_t res = 0xbaadf00d;
+
+ str = "0";
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 0);
+ g_assert(endptr == str + 1);
+
+ str = "56789";
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 56789);
+ g_assert(endptr == str + 5);
+
+ err = qemu_strtotime_ns(str, NULL, &res);
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 56789);
+
+ /* Note: precision is 64 bits (UINT64_MAX) */
+
+ str = "18446744073709551614"; /* UINT64_MAX - 1 */
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 0xfffffffffffffffe);
+ g_assert(endptr == str + 20);
+
+ str = "18446744073709551615"; /* UINT64_MAX */
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 0xffffffffffffffff);
+ g_assert(endptr == str + 20);
+}
+
+static void test_qemu_strtotime_ns_units(void)
+{
+ const char *ns = "1ns";
+ const char *us = "1us";
+ const char *ms = "1ms";
+ const char *s = "1s";
+ int err;
+ const char *endptr;
+ uint64_t res = 0xbaadf00d;
+
+ /* default time unit is ns */
+ err = qemu_strtotime_ns(ns, &endptr, &res);
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 1);
+ g_assert(endptr == ns + 3);
+
+ err = qemu_strtotime_ns(us, &endptr, &res);
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 1000);
+ g_assert(endptr == us + 3);
+
+ err = qemu_strtotime_ns(ms, &endptr, &res);
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 1000000);
+ g_assert(endptr == ms + 3);
+
+ err = qemu_strtotime_ns(s, &endptr, &res);
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 1000000000LL);
+ g_assert(endptr == s + 2);
+}
+
+static void test_qemu_strtotime_ns_float(void)
+{
+ const char *str = "56.789us";
+ int err;
+ const char *endptr;
+ uint64_t res = 0xbaadf00d;
+
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 56.789 * 1000);
+ g_assert(endptr == str + 8);
+}
+
+static void test_qemu_strtotime_ns_invalid(void)
+{
+ const char *str;
+ const char *endptr;
+ int err;
+ uint64_t res = 0xbaadf00d;
+
+ str = "";
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, -EINVAL);
+ g_assert(endptr == str);
+
+ str = " \t ";
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, -EINVAL);
+ g_assert(endptr == str);
+
+ str = "crap";
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, -EINVAL);
+ g_assert(endptr == str);
+
+ str = "inf";
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, -EINVAL);
+ g_assert(endptr == str);
+
+ str = "NaN";
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, -EINVAL);
+ g_assert(endptr == str);
+}
+
+static void test_qemu_strtotime_ns_trailing(void)
+{
+ const char *str;
+ const char *endptr;
+ int err;
+ uint64_t res = 0xbaadf00d;
+
+ str = "123xxx";
+
+ err = qemu_strtotime_ns(str, NULL, &res);
+ g_assert_cmpint(err, ==, -EINVAL);
+
+ str = "1msxxx";
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 1000000);
+ g_assert(endptr == str + 3);
+
+ err = qemu_strtotime_ns(str, NULL, &res);
+ g_assert_cmpint(err, ==, -EINVAL);
+}
+
+static void test_qemu_strtotime_ns_erange(void)
+{
+ const char *str;
+ const char *endptr;
+ int err;
+ uint64_t res = 0xbaadf00d;
+
+ str = "-1";
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, -ERANGE);
+ g_assert(endptr == str + 2);
+
+ str = "18446744073709551616"; /* 2^64 */
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, -ERANGE);
+ g_assert(endptr == str + 20);
+
+ str = "200000000000000ms";
+ err = qemu_strtotime_ns(str, &endptr, &res);
+ g_assert_cmpint(err, ==, -ERANGE);
+ g_assert(endptr == str + 17);
+}
+
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
@@ -2425,5 +2586,17 @@ int main(int argc, char **argv)
g_test_add_func("/cutils/strtosz/metric",
test_qemu_strtosz_metric);
+ g_test_add_func("/cutils/strtotime/simple",
+ test_qemu_strtotime_ns_simple);
+ g_test_add_func("/cutils/strtotime/units",
+ test_qemu_strtotime_ns_units);
+ g_test_add_func("/cutils/strtotime/float",
+ test_qemu_strtotime_ns_float);
+ g_test_add_func("/cutils/strtotime/invalid",
+ test_qemu_strtotime_ns_invalid);
+ g_test_add_func("/cutils/strtotime/trailing",
+ test_qemu_strtotime_ns_trailing);
+ g_test_add_func("/cutils/strtotime/erange",
+ test_qemu_strtotime_ns_erange);
return g_test_run();
}
diff --git a/util/cutils.c b/util/cutils.c
index ffef92338a..0a885a0a90 100644
--- a/util/cutils.c
+++ b/util/cutils.c
@@ -283,6 +283,20 @@ int qemu_strtosz_metric(const char *nptr, const char **end, uint64_t *result)
return do_strtosz(nptr, end, "B", 1000, result);
}
+/*
+ * Convert string to time, support time unit are ns for nanosecond, us for
+ * microsecond, ms for millisecond and s for second. End pointer will be
+ * returned in *end, if not NULL. Return -ERANGE on overflow, and -EINVAL on
+ * other error.
+ */
+int qemu_strtotime_ns(const char *nptr, const char **end, uint64_t *result)
+{
+ static const char *suffixes[] = { "ns", "us", "ms", "s" };
+
+ return do_strtomul(nptr, end, suffixes, ARRAY_SIZE(suffixes), "ns", 1000,
+ result);
+}
+
/**
* Helper function for error checking after strtol() and the like
*/
--
2.20.1
next prev parent reply other threads:[~2019-11-15 7:56 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-15 7:53 [PATCH v16 00/14] Build ACPI Heterogeneous Memory Attribute Table (HMAT) Tao Xu
2019-11-15 7:53 ` [PATCH v16 01/14] util/cutils: Add Add qemu_strtold and qemu_strtold_finite Tao Xu
2019-11-15 7:53 ` [PATCH v16 02/14] util/cutils: Use qemu_strtold_finite to parse size Tao Xu
2019-11-15 7:53 ` [PATCH v16 03/14] util/cutils: refactor do_strtosz() to support suffixes list Tao Xu
2019-11-15 12:11 ` Philippe Mathieu-Daudé
2019-11-18 7:35 ` Tao Xu
2019-11-15 7:53 ` Tao Xu [this message]
2019-11-15 7:53 ` [PATCH v16 05/14] qapi: Add builtin type time Tao Xu
2019-11-15 7:53 ` [PATCH v16 06/14] tests: Add test for QAPI " Tao Xu
2019-11-15 7:53 ` [PATCH v16 07/14] numa: Extend CLI to provide initiator information for numa nodes Tao Xu
2019-11-15 7:53 ` [PATCH v16 08/14] numa: Extend CLI to provide memory latency and bandwidth information Tao Xu
2019-11-19 11:03 ` Igor Mammedov
2019-11-20 7:55 ` Tao Xu
2019-11-20 12:56 ` Igor Mammedov
2019-11-21 1:07 ` Tao Xu
2019-11-15 7:53 ` [PATCH v16 09/14] numa: Extend CLI to provide memory side cache information Tao Xu
2019-11-19 11:47 ` Igor Mammedov
2019-11-20 6:51 ` Tao Xu
2019-11-15 7:53 ` [PATCH v16 10/14] hmat acpi: Build Memory Proximity Domain Attributes Structure(s) Tao Xu
2019-11-15 7:53 ` [PATCH v16 11/14] hmat acpi: Build System Locality Latency and Bandwidth Information Structure(s) Tao Xu
2019-11-20 10:09 ` Igor Mammedov
2019-11-21 1:28 ` Tao Xu
2019-11-15 7:53 ` [PATCH v16 12/14] hmat acpi: Build Memory Side Cache " Tao Xu
2019-11-20 12:50 ` Igor Mammedov
2019-11-15 7:53 ` [PATCH v16 13/14] tests/numa: Add case for QMP build HMAT Tao Xu
2019-11-20 12:32 ` Igor Mammedov
2019-11-21 0:56 ` Tao Xu
2019-11-15 7:53 ` [PATCH v16 14/14] tests/bios-tables-test: add test cases for ACPI HMAT Tao Xu
2019-11-15 8:58 ` [PATCH v16 00/14] Build ACPI Heterogeneous Memory Attribute Table (HMAT) no-reply
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