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1 /* |
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2 * system.h -- platform dependent functions for system inspection |
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3 * |
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4 * Copyright (c) 2013-2016 David Demelier <markand@malikania.fr> |
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5 * |
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6 * Permission to use, copy, modify, and/or distribute this software for any |
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7 * purpose with or without fee is hereby granted, provided that the above |
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8 * copyright notice and this permission notice appear in all copies. |
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9 * |
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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17 */ |
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18 |
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19 #ifndef _IRCCD_SYSTEM_H_ |
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20 #define _IRCCD_SYSTEM_H_ |
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21 |
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22 /** |
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23 * @file system.h |
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24 * @brief System dependant functions |
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25 */ |
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26 |
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27 #include <irccd-config.h> |
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28 |
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29 #include <cstdint> |
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30 #include <string> |
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31 |
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32 namespace irccd { |
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33 |
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34 namespace sys { |
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35 |
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36 /** |
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37 * Set the program name, needed for some functions or some systems. |
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38 * |
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39 * @param name the program name |
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40 */ |
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41 void setProgramName(std::string name) noexcept; |
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42 |
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43 /** |
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44 * Get the program name. |
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45 * |
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46 * @return the program name |
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47 */ |
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48 const std::string &programName() noexcept; |
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49 |
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50 /** |
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51 * Get the system name. |
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52 * |
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53 * @return the name |
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54 */ |
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55 std::string name(); |
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56 |
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57 /** |
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58 * Get the system version. |
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59 * |
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60 * @return the version |
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61 */ |
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62 std::string version(); |
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63 |
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64 /** |
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65 * Get the number of seconds elapsed since the boottime. |
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66 * |
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67 * @return the number of seconds |
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68 */ |
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69 uint64_t uptime(); |
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70 |
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71 /** |
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72 * Get the milliseconds elapsed since the application |
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73 * startup. |
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74 * |
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75 * @return the milliseconds |
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76 */ |
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77 uint64_t ticks(); |
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78 |
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79 /** |
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80 * Get an environment variable. |
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81 * |
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82 * @return the value or empty string |
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83 */ |
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84 std::string env(const std::string &var); |
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85 |
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86 /** |
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87 * Get home directory usually /home/foo |
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88 * |
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89 * @return the home directory |
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90 */ |
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91 std::string home(); |
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92 |
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93 #if defined(HAVE_SETUID) |
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94 |
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95 /** |
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96 * Set the effective uid by name or numeric value. |
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97 * |
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98 * @param value the value |
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99 */ |
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100 void setUid(const std::string &value); |
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101 |
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102 #endif |
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103 |
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104 #if defined(HAVE_SETGID) |
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105 |
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106 /** |
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107 * Set the effective gid by name or numeric value. |
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108 * |
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109 * @param value the value |
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110 */ |
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111 void setGid(const std::string &value); |
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112 |
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113 #endif |
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114 |
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115 } // !sys |
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116 |
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117 } // !irccd |
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118 |
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119 #endif // !_IRCCD_SYSTEM_H_ |