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Merge "Added mutex for reserved_license_ids_." into tm-dev

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TreeHugger Robot
2022-04-29 19:36:30 +00:00
committed by Android (Google) Code Review
parent 7d78ce9ac8 a80a9fef26
commit da1e3c5de2
2 changed files with 9 additions and 0 deletions
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2
libwvdrmengine/cdm/core/include/device_files.h
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@@ -5,6 +5,7 @@
#ifndef WVCDM_CORE_DEVICE_FILES_H_
#define WVCDM_CORE_DEVICE_FILES_H_
#include <mutex>
#include <set>
#include <string>
#include <vector>
@@ -369,6 +370,7 @@ class DeviceFiles {
#endif
static std::set<std::string> reserved_license_ids_;
static std::mutex reserved_license_ids_mutex_;
wvutil::FileSystem* file_system_;
CdmSecurityLevel security_level_;

7
libwvdrmengine/cdm/core/src/device_files.cpp
View File

@@ -87,6 +87,8 @@ using video_widevine_client::sdk::
}
namespace wvcdm {
using UniqueLock = std::unique_lock<std::mutex>;
namespace {
const char kEmptyFileName[] = "";
const char kFalse[] = "false";
@@ -364,6 +366,7 @@ const char* DeviceFiles::ResponseTypeToString(ResponseType type) {
// static
std::set<std::string> DeviceFiles::reserved_license_ids_;
std::mutex DeviceFiles::reserved_license_ids_mutex_;
DeviceFiles::DeviceFiles(wvutil::FileSystem* file_system)
: file_system_(file_system),
@@ -847,6 +850,7 @@ bool DeviceFiles::StoreLicense(const CdmLicenseData& license_data,
std::string serialized_file;
file.SerializeToString(&serialized_file);
UniqueLock lock(reserved_license_ids_mutex_);
reserved_license_ids_.erase(license_data.key_set_id);
*result = StoreFileWithHash(license_data.key_set_id + kLicenseFileNameExt,
serialized_file);
@@ -984,18 +988,21 @@ bool DeviceFiles::DeleteAllFiles() {
bool DeviceFiles::LicenseExists(const std::string& key_set_id) {
RETURN_FALSE_IF_UNINITIALIZED();
UniqueLock lock(reserved_license_ids_mutex_);
return reserved_license_ids_.count(key_set_id) ||
FileExists(key_set_id + kLicenseFileNameExt);
}
bool DeviceFiles::ReserveLicenseId(const std::string& key_set_id) {
RETURN_FALSE_IF_UNINITIALIZED();
UniqueLock lock(reserved_license_ids_mutex_);
reserved_license_ids_.insert(key_set_id);
return true;
}
bool DeviceFiles::UnreserveLicenseId(const std::string& key_set_id) {
RETURN_FALSE_IF_UNINITIALIZED();
UniqueLock lock(reserved_license_ids_mutex_);
reserved_license_ids_.erase(key_set_id);
return true;
}