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Switch to absl::string_view in field_trial::FindFullName()

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Bug: webrtc:13579
Change-Id: Iaaea42957afb4af66ad5eea6447e75dddc13b5ea
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/256263
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Ali Tofigh <alito@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36288}
This commit is contained in:
Ali Tofigh 2022-03-21 14:47:35 +01:00 committed by WebRTC LUCI CQ
parent 2b168062d6
commit 04c881683d
2 changed files with 10 additions and 8 deletions
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4
system_wrappers/include/field_trial.h
View file

@ -13,6 +13,8 @@
#include <string>
#include "absl/strings/string_view.h"
// Field trials allow webrtc clients (such as Chrome) to turn on feature code
// in binaries out in the field and gather information with that.
//
@ -61,7 +63,7 @@ namespace field_trial {
// if the trial does not exists.
//
// Note: To keep things tidy append all the trial names with WebRTC.
std::string FindFullName(const std::string& name);
std::string FindFullName(absl::string_view name);
// Convenience method, returns true iff FindFullName(name) return a string that
// starts with "Enabled".

14
system_wrappers/source/field_trial.cc
View file

@ -102,11 +102,11 @@ std::string MergeFieldTrialsStrings(const char* first, const char* second) {
}
#ifndef WEBRTC_EXCLUDE_FIELD_TRIAL_DEFAULT
std::string FindFullName(const std::string& name) {
std::string FindFullName(absl::string_view name) {
if (trials_init_string == NULL)
return std::string();
std::string trials_string(trials_init_string);
absl::string_view trials_string(trials_init_string);
if (trials_string.empty())
return std::string();
@ -122,14 +122,14 @@ std::string FindFullName(const std::string& name) {
if (field_value_end == trials_string.npos ||
field_value_end == field_name_end + 1)
break;
std::string field_name(trials_string, next_item,
field_name_end - next_item);
std::string field_value(trials_string, field_name_end + 1,
field_value_end - field_name_end - 1);
absl::string_view field_name =
trials_string.substr(next_item, field_name_end - next_item);
absl::string_view field_value = trials_string.substr(
field_name_end + 1, field_value_end - field_name_end - 1);
next_item = field_value_end + 1;
if (name == field_name)
return field_value;
return std::string(field_value);
}
return std::string();
}