96 lines
2.9 KiB
C++
96 lines
2.9 KiB
C++
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file executionEnvironment.h
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* @author drose
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* @date 2000-05-15
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*/
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#ifndef EXECUTIONENVIRONMENT_H
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#define EXECUTIONENVIRONMENT_H
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#include "dtoolbase.h"
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#include "vector_string.h"
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#include "filename.h"
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#include <map>
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/**
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* Encapsulates access to the environment variables and command-line arguments
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* at the time of execution. This is encapsulated to support accessing these
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* things during static init time, which seems to be risky at best.
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*/
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class EXPCL_DTOOL_DTOOLUTIL ExecutionEnvironment {
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private:
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ExecutionEnvironment();
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PUBLISHED:
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INLINE static bool has_environment_variable(const std::string &var);
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INLINE static std::string get_environment_variable(const std::string &var);
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INLINE static void set_environment_variable(const std::string &var, const std::string &value);
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INLINE static void shadow_environment_variable(const std::string &var, const std::string &value);
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INLINE static void clear_shadow(const std::string &var);
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static std::string expand_string(const std::string &str);
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INLINE static size_t get_num_args();
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INLINE static std::string get_arg(size_t n);
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INLINE static std::string get_binary_name();
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INLINE static std::string get_dtool_name();
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INLINE static void set_binary_name(const std::string &name);
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INLINE static void set_dtool_name(const std::string &name);
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static Filename get_cwd();
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PUBLISHED:
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MAKE_MAP_PROPERTY(environment_variables, has_environment_variable,
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get_environment_variable, set_environment_variable);
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MAKE_SEQ_PROPERTY(args, get_num_args, get_arg);
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MAKE_PROPERTY(binary_name, get_binary_name, set_binary_name);
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MAKE_PROPERTY(dtool_name, get_dtool_name, set_dtool_name);
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MAKE_PROPERTY(cwd, get_cwd);
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private:
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bool ns_has_environment_variable(const std::string &var) const;
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std::string ns_get_environment_variable(const std::string &var) const;
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void ns_set_environment_variable(const std::string &var, const std::string &value);
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void ns_shadow_environment_variable(const std::string &var, const std::string &value);
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void ns_clear_shadow(const std::string &var);
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size_t ns_get_num_args() const;
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std::string ns_get_arg(size_t n) const;
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std::string ns_get_binary_name() const;
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std::string ns_get_dtool_name() const;
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static ExecutionEnvironment *get_ptr();
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void read_environment_variables();
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void read_args();
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private:
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typedef std::map<std::string, std::string> EnvironmentVariables;
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EnvironmentVariables _variables;
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typedef vector_string CommandArguments;
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CommandArguments _args;
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std::string _binary_name;
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std::string _dtool_name;
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static ExecutionEnvironment *_global_ptr;
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};
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#include "executionEnvironment.I"
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#endif
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