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1 #pragma once
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2
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3 #include <sys/select.h>
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4 #include <sys/time.h>
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5 #include <set>
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6
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7 namespace pfc {
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8
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9 void nixFormatError( string_base & str, int code );
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10
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11 class exception_nix : public std::exception {
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12 public:
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13 exception_nix();
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14 exception_nix(int code);
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15
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16 ~exception_nix() throw() { }
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17
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18 int code() const throw() {return m_code;}
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19 const char * what() const throw() {return m_msg.get_ptr();}
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20 private:
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21 void _init(int code);
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22 int m_code;
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23 string8 m_msg;
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24 };
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25
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26 // Toggles non-blocking mode on a file descriptor.
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27 void setNonBlocking( int fd, bool bNonBlocking = true );
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28
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29 // Toggles close-on-exec mode on a file descriptor.
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30 void setCloseOnExec( int fd, bool bCloseOnExec = true );
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31
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32 // Toggles inheritable mode on a file descriptor. Reverse of close-on-exec.
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33 void setInheritable( int fd, bool bInheritable = true );
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34
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35 // Creates a pipe. The pipe is NOT inheritable by default (close-on-exec set).
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36 void createPipe( int fd[2], bool bInheritable = false );
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37
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38 timeval makeTimeVal( double seconds );
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39 double importTimeval(const timeval & tv);
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40
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41 class fdSet {
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42 public:
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43
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44 void operator+=( int fd );
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45 void operator-=( int fd );
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46 bool operator[] (int fd );
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47 void clear();
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48
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49 void operator+=( fdSet const & other );
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50
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51 std::set<int> m_fds;
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52 };
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53
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54
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55 bool fdCanRead( int fd );
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56 bool fdCanWrite( int fd );
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57
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58 bool fdWaitRead( int fd, double timeOutSeconds );
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59 bool fdWaitWrite( int fd, double timeOutSeconds );
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60
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61 class fdSelect {
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62 public:
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63
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64 int Select();
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65 int Select( double timeOutSeconds );
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66 int Select_( int timeOutMS );
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67
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68 fdSet Reads, Writes, Errors;
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69 };
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70
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71 void nixSleep(double seconds);
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72 void sleepSeconds(double seconds);
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73 void yield();
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74
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75 typedef int eventHandle_t;
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76 static constexpr eventHandle_t eventInvalid = -1;
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77
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78 class nix_event {
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79 public:
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80 nix_event(bool state = false);
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81 ~nix_event();
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82
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83 void set_state( bool state );
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84
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85 bool is_set( );
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86
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87 void wait_and_clear() { wait(); set_state(false); }
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88 void wait() { wait_for(-1); }
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89 bool wait_for( double p_timeout_seconds );
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90
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91 static bool g_wait_for( int p_event, double p_timeout_seconds );
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92
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93 eventHandle_t get_handle() const {return m_fd[0]; }
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94
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95 // Two-wait event functions, return 0 on timeout, 1 on evt1 set, 2 on evt2 set
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96 static int g_twoEventWait( nix_event & ev1, nix_event & ev2, double timeout );
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97 static int g_twoEventWait( int h1, int h2, double timeOut );
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98
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99 // Multi-wait. Returns SIZE_MAX on timeout, 0 based event index if either event becomes set.
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100 static size_t g_multiWait( const eventHandle_t * events, size_t count, double timeout );
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101 static size_t g_multiWait(std::initializer_list<eventHandle_t> const & arg, double timeout);
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102
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103 private:
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104 nix_event(nix_event const&) = delete;
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105 void operator=(nix_event const&) = delete;
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106 int m_fd[2];
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107 };
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108
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109 typedef nix_event event;
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110
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111 double nixGetTime();
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112 typedef uint64_t tickcount_t;
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113 tickcount_t getTickCount();
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114
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115 bool nixReadSymLink( string_base & strOut, const char * path );
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116 bool nixSelfProcessPath( string_base & strOut );
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117
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118 void nixGetRandomData( void * outPtr, size_t outBytes );
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119
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120 bool isShiftKeyPressed();
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121 bool isCtrlKeyPressed();
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122 bool isAltKeyPressed();
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123
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124 #ifdef __APPLE__
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125 bool appleRecycleFile( const char * path );
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126 void appleSetThreadDescription( const char * str );
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127 #endif
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128 }
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129
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130 void uSleepSeconds( double seconds, bool );
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