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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#ifndef UTILS_H
#define UTILS_H
#include "pal.h"
#include "trace.h"
#define _STRINGIFY(s) _X(s)
#if defined(_WIN32)
#define DOTNET_CORE_INSTALL_PREREQUISITES_URL _X("https://go.microsoft.com/fwlink/?linkid=798306")
#elif defined(TARGET_OSX)
#define DOTNET_CORE_INSTALL_PREREQUISITES_URL _X("https://go.microsoft.com/fwlink/?linkid=2063366")
#else
#define DOTNET_CORE_INSTALL_PREREQUISITES_URL _X("https://go.microsoft.com/fwlink/?linkid=2063370")
#endif
#define DOTNET_CORE_DOWNLOAD_URL _X("https://aka.ms/dotnet-download")
#define DOTNET_CORE_APPLAUNCH_URL _X("https://aka.ms/dotnet-core-applaunch")
#define RUNTIME_STORE_DIRECTORY_NAME _X("store")
bool ends_with(const pal::string_t& value, const pal::string_t& suffix, bool match_case);
bool starts_with(const pal::string_t& value, const pal::string_t& prefix, bool match_case);
pal::string_t strip_executable_ext(const pal::string_t& filename);
pal::string_t get_directory(const pal::string_t& path);
pal::string_t strip_file_ext(const pal::string_t& path);
pal::string_t get_filename(const pal::string_t& path);
pal::string_t get_filename_without_ext(const pal::string_t& path);
void append_path(pal::string_t* path1, const pal::char_t* path2);
bool library_exists_in_dir(const pal::string_t& lib_dir, const pal::string_t& lib_name, pal::string_t* p_lib_path);
bool coreclr_exists_in_dir(const pal::string_t& candidate);
void remove_trailing_dir_seperator(pal::string_t* dir);
void replace_char(pal::string_t* path, pal::char_t match, pal::char_t repl);
pal::string_t get_replaced_char(const pal::string_t& path, pal::char_t match, pal::char_t repl);
const pal::char_t* get_arch();
pal::string_t get_current_runtime_id(bool use_fallback);
bool get_env_shared_store_dirs(std::vector<pal::string_t>* dirs, const pal::string_t& arch, const pal::string_t& tfm);
bool get_global_shared_store_dirs(std::vector<pal::string_t>* dirs, const pal::string_t& arch, const pal::string_t& tfm);
bool multilevel_lookup_enabled();
void get_framework_and_sdk_locations(const pal::string_t& dotnet_dir, std::vector<pal::string_t>* locations);
bool get_file_path_from_env(const pal::char_t* env_key, pal::string_t* recv);
size_t index_of_non_numeric(const pal::string_t& str, unsigned i);
bool try_stou(const pal::string_t& str, unsigned* num);
pal::string_t get_dotnet_root_env_var_name();
pal::string_t get_deps_from_app_binary(const pal::string_t& app_base, const pal::string_t& app);
pal::string_t get_runtime_config_path(const pal::string_t& path, const pal::string_t& name);
pal::string_t get_runtime_config_dev_path(const pal::string_t& path, const pal::string_t& name);
void get_runtime_config_paths(const pal::string_t& path, const pal::string_t& name, pal::string_t* cfg, pal::string_t* dev_cfg);
pal::string_t get_dotnet_root_from_fxr_path(const pal::string_t &fxr_path);
// Get a download URL for a specific framework and version
// If no framework is specified, a download URL for the runtime is returned
pal::string_t get_download_url(const pal::char_t *framework_name = nullptr, const pal::char_t *framework_version = nullptr);
// Retrieves environment variable which is only used for testing.
// This will return the value of the variable only if the product binary is stamped
// with test-only marker.
bool test_only_getenv(const pal::char_t* name, pal::string_t* recv);
// Helper class to make it easy to propagate error writer to the hostpolicy
class propagate_error_writer_t
{
public:
typedef trace::error_writer_fn(__cdecl *set_error_writer_fn)(trace::error_writer_fn error_writer);
private:
set_error_writer_fn m_set_error_writer;
bool m_error_writer_set;
public:
propagate_error_writer_t(set_error_writer_fn set_error_writer)
{
// Previous trace messages from the caller module must be printed before calling trace::setup in callee module
// The two modules have different trace util instances and thus don't share file IO buffers
// Not flushing may lead to traces from before the call being written after the call due to module mismatch.
trace::flush();
m_set_error_writer = set_error_writer;
m_error_writer_set = false;
trace::error_writer_fn error_writer = trace::get_error_writer();
if (error_writer != nullptr && m_set_error_writer != nullptr)
{
m_set_error_writer(error_writer);
m_error_writer_set = true;
}
}
~propagate_error_writer_t()
{
if (m_error_writer_set && m_set_error_writer != nullptr)
{
m_set_error_writer(nullptr);
m_error_writer_set = false;
}
}
};
// Helper class to make it easy to change the error writer within a specific scope only.
class error_writer_scope_t
{
private:
trace::error_writer_fn m_old_error_writer;
public:
error_writer_scope_t(trace::error_writer_fn new_error_writer)
{
m_old_error_writer = trace::set_error_writer(new_error_writer);
}
~error_writer_scope_t()
{
trace::set_error_writer(m_old_error_writer);
}
};
#endif
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