From cc413f8b674d61e3aa948386432e526e051afca0 Mon Sep 17 00:00:00 2001
From: Abseil Team <absl-team@google.com>
Date: Wed, 27 Oct 2021 13:22:18 -0700
Subject: Export of internal Abseil changes

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05a099a580753f8e96cee38572e94dcdc079361b by Abseil Team <absl-team@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 405966217

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c6b81e9ebc183d8389f14ecd091c8bad08cfe0aa by Abseil Team <absl-team@google.com>:

Add `inline_element_size` to hashtablez (so that we can compute the weighted load factors properly e.g., in b/187896534).

PiperOrigin-RevId: 405917711

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3e3673de4e54e4142c54b09e1644dfa3de4bb296 by Abseil Team <absl-team@google.com>:

align indent of code comment in mutex.h

PiperOrigin-RevId: 405871997

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2248301a5b14f8d2be5b2e9088f3528a353ea491 by Derek Mauro <dmauro@google.com>:

Internal change

PiperOrigin-RevId: 405639236

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bc7d3c56fdad3dde4b89324af142529f2afe5f1b by Abseil Team <absl-team@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 405508045

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66472387276ef02505d99195747be862768bb35b by Laramie Leavitt <lar@google.com>:

Also use uint8_t golden values in randen_test.cc

This makes randen_test, randen_slow_test, and randen_hwaes_test essentially
identical, as is the intent.

PiperOrigin-RevId: 405484423
GitOrigin-RevId: 05a099a580753f8e96cee38572e94dcdc079361b
Change-Id: I3dd5b0cfdb98d6e1ab02266194ba67d15428c2f8
---
 absl/time/internal/cctz/src/time_zone_lookup.cc | 49 +++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

(limited to 'absl/time/internal/cctz/src/time_zone_lookup.cc')

diff --git a/absl/time/internal/cctz/src/time_zone_lookup.cc b/absl/time/internal/cctz/src/time_zone_lookup.cc
index efdea64b..898d04c1 100644
--- a/absl/time/internal/cctz/src/time_zone_lookup.cc
+++ b/absl/time/internal/cctz/src/time_zone_lookup.cc
@@ -28,6 +28,13 @@
 #include <vector>
 #endif
 
+#if defined(__Fuchsia__)
+#include <fuchsia/intl/cpp/fidl.h>
+#include <lib/async-loop/cpp/loop.h>
+#include <lib/sys/cpp/component_context.h>
+#include <zircon/types.h>
+#endif
+
 #include <cstdlib>
 #include <cstring>
 #include <string>
@@ -140,6 +147,48 @@ time_zone local_time_zone() {
   }
   CFRelease(tz_default);
 #endif
+#if defined(__Fuchsia__)
+  std::string primary_tz;
+  [&]() {
+    // Note: We can't use the synchronous FIDL API here because it doesn't
+    // allow timeouts; if the FIDL call failed, local_time_zone() would never
+    // return.
+
+    const zx::duration kTimeout = zx::msec(500);
+
+    // Don't attach to the thread because otherwise the thread's dispatcher
+    // would be set to null when the loop is destroyed, causing any other FIDL
+    // code running on the same thread to crash.
+    async::Loop loop(&kAsyncLoopConfigNeverAttachToThread);
+    std::unique_ptr<sys::ComponentContext> context =
+        sys::ComponentContext::Create();
+
+    fuchsia::intl::PropertyProviderHandle handle;
+    zx_status_t status = context->svc()->Connect(handle.NewRequest());
+    if (status != ZX_OK) {
+      return;
+    }
+
+    fuchsia::intl::PropertyProviderPtr intl_provider;
+    status = intl_provider.Bind(std::move(handle), loop.dispatcher());
+    if (status != ZX_OK) {
+      return;
+    }
+
+    intl_provider->GetProfile(
+        [&loop, &primary_tz](fuchsia::intl::Profile profile) {
+          if (!profile.time_zones().empty()) {
+            primary_tz = profile.time_zones()[0].id;
+          }
+          loop.Quit();
+        });
+    loop.Run(zx::deadline_after(kTimeout));
+  }();
+
+  if (!primary_tz.empty()) {
+    zone = primary_tz.c_str();
+  }
+#endif
 
   // Allow ${TZ} to override to default zone.
   char* tz_env = nullptr;
-- 
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