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Clean up the interface and implementation of sys::Program so that it is

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cleanly dissociated from the sys::Path class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16315 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2004-09-13 21:48:44 +00:00
parent 1002013ed3
commit 2565943289
3 changed files with 46 additions and 52 deletions
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include/llvm/System/Program.h
+14 -22
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@@ -21,14 +21,13 @@ namespace llvm {
namespace sys {
/// This class provides an abstraction for programs that are executable by the
/// operating system. It derives from Path because every executable on all
/// known operating systems has a pathname that is needed in order to execute
/// the program. This class provides an operating system agnostic interface
/// for the procedure of finding and executing programs in a variety of ways.
/// operating system. It provides a platform generic way to find executable
/// programs from the path and to execute them. The sys::Path class is used to
/// locate the Program.
/// @since 1.4
/// @brief An abstraction for operating system programs.
class Program : public Path {
/// @name Constructors
/// @brief An abstraction for finding and executing programs.
class Program {
/// @name Methods
/// @{
public:
/// This static constructor (factory) will attempt to locate a program in
@@ -38,20 +37,8 @@ namespace sys {
/// Path object that is empty (invalid) if the program could not be found.
/// @throws nothing
/// @brief Construct a Program by finding it by name.
static Program FindProgramByName(const std::string& name);
static Path FindProgramByName(const std::string& name);
/// This static constructor (factory) constructs a Program object that
/// refers to the currently executing program.
/// @brief Constructs a Program object for the currently executing
/// program.
// static Program This();
/// FIXME: Not sure if this is currently doable.
/// @}
/// @name Methods
/// @{
public:
/// This function executes the program using the \p arguments provided and
/// waits for the program to exit. This function will block the current
/// program until the invoked program exits. The invoked program will
@@ -60,13 +47,18 @@ namespace sys {
/// If Path::executable() does not return true when this function is
/// called then a std::string is thrown.
/// Path::executable() returns true.
/// @param arguments A vector of strings that are passed to the program.
/// @param path A sys::Path object providing the path of the program to be
/// executed. It is presumed this is the result of the FindProgramByName
/// method.
/// @param args A vector of strings that are passed to the program.
/// The first element should *not* be the name of the program.
/// @returns an integer result code indicating the status of the program.
/// @throws std::string on a variety of error conditions or if the invoked
/// program aborted abnormally.
/// @see FindProgrambyName
/// @brief Executes the program with the given set of \p arguments.
int ExecuteAndWait(const std::vector<std::string>& arguments) const;
static int ExecuteAndWait(const Path& path,
const std::vector<std::string>& args);
/// @}
};
}