mirror of
https://github.com/dart-lang/sdk
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53fb57ea5e
Cf. ef4984566b
.
TEST=samples/hello_world
Bug: https://github.com/dart-lang/samples/issues/195
Change-Id: I05cac92500a912c5d3e0771f626878decac18a9b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/324267
Reviewed-by: Brian Quinlan <bquinlan@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
131 lines
4.4 KiB
C++
131 lines
4.4 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef RUNTIME_BIN_PLATFORM_H_
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#define RUNTIME_BIN_PLATFORM_H_
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#include "bin/builtin.h"
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#include "platform/atomic.h"
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#include "platform/globals.h"
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#include "platform/utils.h"
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#if defined(DART_HOST_OS_MACOS)
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#include "bin/platform_macos.h"
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#endif // defined(DART_HOST_OS_MACOS)
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namespace dart {
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namespace bin {
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class Platform {
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public:
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// Perform platform specific initialization.
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static bool Initialize();
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// Returns the number of processors on the machine.
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static int NumberOfProcessors();
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// Returns a string representing the operating system ("linux",
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// "macos", "windows", or "android"). The returned string should not be
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// deallocated by the caller.
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static const char* OperatingSystem() { return kHostOperatingSystemName; }
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// Returns a string representing the version of the operating system. The
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// format of the string is determined by the platform. The returned string
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// should not be deallocated by the caller.
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static const char* OperatingSystemVersion();
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// Returns the architecture name of the processor the VM is running on
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// (ia32, x64, arm, or arm64).
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static const char* HostArchitecture() { return kHostArchitectureName; }
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static const char* LibraryPrefix();
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// Returns a string representing the operating system's shared library
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// extension (e.g. 'so', 'dll', ...). The returned string should not be
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// deallocated by the caller.
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static const char* LibraryExtension();
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// Extracts the local hostname.
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static bool LocalHostname(char* buffer, intptr_t buffer_length);
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static const char* LocaleName();
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// Extracts the environment variables for the current process. The array of
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// strings is Dart_ScopeAllocated. The number of elements in the array is
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// returned in the count argument.
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static char** Environment(intptr_t* count);
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static const char* ResolveExecutablePath();
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// This has the same effect as calling ResolveExecutablePath except that
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// Dart_ScopeAllocate is not called and that the result goes into the given
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// parameters.
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// WARNING: On Fuchsia it returns -1, i.e. doesn't work.
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// Note that `result` should be pre-allocated with size `result_size`.
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// The return-value is the length read into `result` or -1 on failure.
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static intptr_t ResolveExecutablePathInto(char* result, size_t result_size);
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// Stores the executable name.
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static void SetExecutableName(const char* executable_name) {
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executable_name_ = executable_name;
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}
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static const char* GetExecutableName();
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static const char* GetResolvedExecutableName() {
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if (resolved_executable_name_.load() == nullptr) {
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// Try to resolve the executable path using platform specific APIs.
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const char* resolved_name = Platform::ResolveExecutablePath();
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if (resolved_name != nullptr) {
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char* resolved_name_copy = Utils::StrDup(resolved_name);
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const char* expect_old_is_null = nullptr;
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if (!resolved_executable_name_.compare_exchange_strong(
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expect_old_is_null, resolved_name_copy)) {
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free(resolved_name_copy);
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}
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}
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}
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return resolved_executable_name_.load();
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}
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// Stores and gets the flags passed to the executable.
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static void SetExecutableArguments(int script_index, char** argv) {
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script_index_ = script_index;
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argv_ = argv;
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}
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static int GetScriptIndex() { return script_index_; }
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static char** GetArgv() { return argv_; }
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static void SetProcessName(const char* name);
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DART_NORETURN static void Exit(int exit_code);
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DART_NORETURN static void _Exit(int exit_code);
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static void SetCoreDumpResourceLimit(int value);
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#if defined(DART_HOST_OS_FUCHSIA)
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static zx_handle_t GetVMEXResource();
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#endif
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private:
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// The path to the executable.
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static const char* executable_name_;
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// The path to the resolved executable.
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//
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// We use require-release semantics to ensure initializing stores to the
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// string are visible when the string becomes visible.
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static AcqRelAtomic<const char*> resolved_executable_name_;
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static int script_index_;
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static char** argv_; // VM flags are argv_[1 ... script_index_ - 1]
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DISALLOW_ALLOCATION();
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DISALLOW_IMPLICIT_CONSTRUCTORS(Platform);
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};
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} // namespace bin
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} // namespace dart
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#endif // RUNTIME_BIN_PLATFORM_H_
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