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1 /* |
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2 |
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3 Copyright (C) 1999 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #ifdef HAVE_UNISTD_H |
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28 #ifdef HAVE_SYS_TYPES_H |
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29 #include <sys/types.h> |
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30 #endif |
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31 #include <unistd.h> |
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32 #endif |
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33 |
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34 #include "systime.h" |
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35 |
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36 #ifdef HAVE_POLL_H |
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37 #include <poll.h> |
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38 #elif HAVE_SYS_POLL_H |
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39 #include <sys/poll.h> |
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40 #endif |
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41 |
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42 #include <stdarg.h> |
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43 #include <stdio.h> |
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44 #include <stdlib.h> |
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45 #include <string.h> |
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46 |
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47 static void |
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48 do_octave_usleep (unsigned int useconds) |
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49 { |
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50 #if defined (HAVE_USLEEP) |
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51 |
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52 usleep (useconds); |
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53 |
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54 #elif defined (HAVE_SELECT) |
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55 |
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56 struct timeval delay; |
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57 |
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58 delay.tv_sec = 0; |
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59 delay.tv_usec = useconds; |
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60 |
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61 select (0, 0, 0, 0, &delay); |
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62 |
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63 #elif defined (HAVE_POLL) |
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64 |
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65 struct pollfd pfd; |
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66 int delay = useconds / 1000; |
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67 |
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68 if (delay > 0) |
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69 poll (&fd, 0, delay); |
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70 |
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71 #endif |
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72 } |
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73 |
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74 void |
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75 octave_usleep (unsigned int useconds) |
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76 { |
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77 unsigned int sec = useconds / 1000000; |
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78 unsigned int usec = useconds % 1000000; |
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79 |
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80 if (sec > 0) |
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81 sleep (sec); |
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82 |
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83 do_octave_usleep (usec); |
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84 } |
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85 |
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86 int |
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87 octave_strcasecmp (const char *s1, const char *s2) |
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88 { |
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89 return strcasecmp (s1, s2); |
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90 } |
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91 |
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92 int |
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93 octave_strncasecmp (const char *s1, const char *s2, size_t n) |
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94 { |
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95 return strncasecmp (s1, s2, n); |
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96 } |
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97 |
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98 char * |
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99 octave_vsnprintf (const char *fmt, va_list args) |
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100 { |
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101 #if defined (HAVE_VSNPRINTF) |
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102 size_t size = 100; |
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103 |
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104 char *buf = malloc (size); |
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105 |
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106 while (1) |
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107 { |
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108 int nchars = vsnprintf (buf, size, fmt, args); |
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109 |
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110 if (nchars > -1) |
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111 return buf; |
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112 else |
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113 { |
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114 size *= 2; |
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115 buf = realloc (buf, size); |
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116 } |
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117 } |
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118 #else |
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119 return 0; |
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120 #endif |
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121 } |
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122 |
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123 char * |
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124 octave_snprintf (const char *fmt, ...) |
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125 { |
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126 char *retval = 0; |
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127 |
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128 va_list args; |
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129 va_start (args, fmt); |
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130 |
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131 retval = octave_vsnprintf (fmt, args); |
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132 |
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133 va_end (args); |
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134 |
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135 return retval; |
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136 } |
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137 |
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138 /* |
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139 ;;; Local Variables: *** |
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140 ;;; mode: C++ *** |
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141 ;;; End: *** |
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142 */ |
