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| 1 | //===-- include/flang/Runtime/command.h -------------------------*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #ifndef FORTRAN_RUNTIME_COMMAND_H_ |
| 10 | #define FORTRAN_RUNTIME_COMMAND_H_ |
| 11 | |
| 12 | #include "flang/Runtime/entry-names.h" |
| 13 | #include <cstdint> |
| 14 | |
| 15 | #ifdef _WIN32 |
| 16 | // On Windows* OS GetCurrentProcessId returns DWORD aka uint32_t |
| 17 | typedef std::uint32_t pid_t; |
| 18 | #else |
| 19 | #include "sys/types.h" //pid_t |
| 20 | #endif |
| 21 | |
| 22 | namespace Fortran::runtime { |
| 23 | class Descriptor; |
| 24 | |
| 25 | extern "C" { |
| 26 | // 16.9.51 COMMAND_ARGUMENT_COUNT |
| 27 | // |
| 28 | // Lowering may need to cast the result to match the precision of the default |
| 29 | // integer kind. |
| 30 | std::int32_t RTNAME(ArgumentCount)(); |
| 31 | |
| 32 | // Calls getpid() |
| 33 | pid_t RTNAME(GetPID)(); |
| 34 | |
| 35 | // 16.9.82 GET_COMMAND |
| 36 | // Try to get the value of the whole command. All of the parameters are |
| 37 | // optional. |
| 38 | // Return a STATUS as described in the standard. |
| 39 | std::int32_t RTNAME(GetCommand)(const Descriptor *command = nullptr, |
| 40 | const Descriptor *length = nullptr, const Descriptor *errmsg = nullptr, |
| 41 | const char *sourceFile = nullptr, int line = 0); |
| 42 | |
| 43 | // 16.9.83 GET_COMMAND_ARGUMENT |
| 44 | // Try to get the value of the n'th argument. |
| 45 | // Returns a STATUS as described in the standard. |
| 46 | std::int32_t RTNAME(GetCommandArgument)(std::int32_t n, |
| 47 | const Descriptor *argument = nullptr, const Descriptor *length = nullptr, |
| 48 | const Descriptor *errmsg = nullptr, const char *sourceFile = nullptr, |
| 49 | int line = 0); |
| 50 | |
| 51 | // 16.9.84 GET_ENVIRONMENT_VARIABLE |
| 52 | // Try to get the value of the environment variable specified by NAME. |
| 53 | // Returns a STATUS as described in the standard. |
| 54 | std::int32_t RTNAME(GetEnvVariable)(const Descriptor &name, |
| 55 | const Descriptor *value = nullptr, const Descriptor *length = nullptr, |
| 56 | bool trim_name = true, const Descriptor *errmsg = nullptr, |
| 57 | const char *sourceFile = nullptr, int line = 0); |
| 58 | } |
| 59 | } // namespace Fortran::runtime |
| 60 | |
| 61 | #endif // FORTRAN_RUNTIME_COMMAND_H_ |
| 62 |
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