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// Truck Computer Dooom! |
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// |
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// Douglas Thrift |
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// |
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// $Id$ |
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|
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#ifndef _posix_hpp_ |
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#define _posix_hpp_ |
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|
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#include <cerrno> |
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#include <cstring> |
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#include <exception> |
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#include <string> |
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|
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namespace Posix |
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{ |
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|
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inline int CheckError(int status); |
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|
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class Error : public std::exception |
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{ |
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int code; |
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char message[1024]; |
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|
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public: |
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Error(); |
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virtual ~Error() throw() {} |
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|
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virtual int GetCode() const { return code; } |
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virtual std::string GetMessage() const { return message; } |
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virtual const char *what() const throw() { return message; } |
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}; |
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|
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inline int CheckError(int status) |
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{ |
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if (status == -1) |
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throw Error(); |
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|
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return status; |
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} |
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|
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#define _SysCall(call) \ |
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int status; \ |
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\ |
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while ((status = call) == -1) \ |
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if (errno != EINTR) \ |
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throw Error(); \ |
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else \ |
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continue; \ |
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\ |
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return status |
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|
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template <typename Function_, typename Arg0_, typename Arg1_> |
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int SysCall(Function_ function, Arg0_ arg0, Arg1_ arg1) |
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{ |
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_SysCall(function(arg0, arg1)); |
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} |
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|
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template <typename Function_, typename Arg0_, typename Arg1_, typename Arg2_> |
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int SysCall(Function_ function, Arg0_ arg0, Arg1_ arg1, Arg2_ arg2) |
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{ |
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_SysCall(function(arg0, arg1, arg2)); |
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} |
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|
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#undef _SysCall |
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|
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int Open(const std::string &path, int flags, ::mode_t mode); |
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|
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inline int Open(const std::string &path, int flags) |
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{ |
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return Open(path, flags, 0); |
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} |
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|
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size_t Read(int fd, void *buffer, size_t bytes); |
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size_t ReadMost(int fd, void *buffer, size_t bytes); |
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|
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} |
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|
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#endif//_posix_hpp_ |
